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Journal articles on the topic 'Benzyl tri-methyl ammonium chloride'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Krečmerová, Marcela, Hubert Hřebabecký, and Antonín Holý. "Preparation of 5-Benzyluracil and 5-Benzylcytosine Nucleosides as Potential Inhibitors of Uridine Phosphorylase." Collection of Czechoslovak Chemical Communications 61, no. 4 (1996): 627–44. http://dx.doi.org/10.1135/cccc19960627.

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Reaction of 3,4,6-tri-O-acetyl-2-deoxyglucopyranosyl bromide (1) with silylated 5-benzyluracil and subsequent ammonolysis afforded α- and β-anomers of 5-benzyl-1-(2-deoxy-D-glucopyranosyl)uracil (2 and 3). Under catalysis with tin tetrachloride, silylated 5-benzyluracil reacted with 1-O-acetyl-2,3,5-tri-O-benzoyl-D-ribofuranose to give 2',3',5'-tri-O-benzoyl-5-benzyluridine (10), which was converted into the 4-thio derivative 11 by reaction with Lawesson reagent. Debenzoylation of compound 11 afforded 5-benzyl-4-thiouridine (12), whereas its reaction with methyl iodide and deblocking gave 4-me

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2

Debadrita Roy, Sukdev Majumder, Biplab Rajbanshi, Subhadeep Saha, and Biswajit Sinha. "Physicochemical investigation of L-Asparagine in green solvent arrangements with the manifestation of solvation consequences." World Journal of Advanced Research and Reviews 13, no. 2 (2022): 401–28. http://dx.doi.org/10.30574/wjarr.2022.13.2.0164.

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Solution behaviour prevailing in L-Asparagine in two aqueous ionic liquid solutions, namely (Benzyl tri–methyl ammonium chloride; Benzyl tri-ethyl ammonium chloride) have been studied by investigation of physico-chemical parameters; density, viscosity, refractive index, conductance and surface tension measurement respectively. The nature of interactions occurring in the solution have been calculated on the basis of apparent molar volume, viscosity A and B-coefficient, molar refraction at 298.15K,303.15K,308.15K and at 0.001m, 0.003m, 0.005m concentrations. The limiting apparent molar volumes (

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3

Debadrita, Roy, Majumder Sukdev, Rajbanshi Biplab, Saha Subhadeep, and Sinha Biswajit. "Physicochemical investigation of L-Asparagine in green solvent arrangements with the manifestation of solvation consequences." World Journal of Advanced Research and Reviews 13, no. 2 (2022): 401–28. https://doi.org/10.5281/zenodo.6349832.

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Solution behaviour prevailing in L-Asparagine in two aqueous ionic liquid solutions, namely (Benzyl tri–methyl ammonium chloride; Benzyl tri-ethyl ammonium chloride) have been studied by investigation of physico-chemical parameters; density, viscosity, refractive index, conductance and surface tension measurement respectively. The nature of interactions occurring in the solution have been calculated on the basis of apparent molar volume, viscosity A and B-coefficient, molar refraction at 298.15K,303.15K,308.15K and at 0.001m, 0.003m, 0.005m concentrations. The limiting apparent molar vol

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4

Taysun, M. Bengi, Emine Sert, and Ferhan S. Atalay. "Physical properties of benzyl tri-methyl ammonium chloride based deep eutectic solvents and employment as catalyst." Journal of Molecular Liquids 223 (November 2016): 845–52. http://dx.doi.org/10.1016/j.molliq.2016.07.148.

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5

Al-Azmi, Amal. "Novel 6-substituted Pyrimidines and Pyrimido[5,4-d]pyrimidines from (2-acetamido-1,2-dicyanovinyl)Ammonium Chloride." Journal of Chemical Research 2005, no. 8 (2005): 530–34. http://dx.doi.org/10.3184/030823405774663200.

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The reaction of triethyl orthoformate with 5-amino-6-ethoxy-2-methyl-4-pyrimidinecarbonitrile (5), available from DAMN via the ammonium salt 4, afforded iminoformate 6. The latter cyclised with aqueous ammonia or equimolar amounts of aryl/benzyl amines to give the corresponding pyrimido[5,4-d]pyrimidines 8, 9a–c. Reaction with excess of aqueous ethylamine, methylamine or benzylamine caused cyclisation with substitution of an ethoxy group to give 9d–f. Hydrolysis of compounds 8, 9a–b under acidic conditions gave the corresponding pyrimido[5,4-d]pyrimidones 10, 11a–b. Heating 4 to reflux in THF

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6

Guo, Mingliang, Kwon Ho Hong, Yongfeng Lv, et al. "A Novel and Efficient Route for Synthesis of Taladegib." Journal of Chemical Research 41, no. 2 (2017): 112–15. http://dx.doi.org/10.3184/003685017x14859543105069.

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Taladegib (LY-2940680), a small molecule Hedgehog signalling pathway inhibitor, was obtained from N-benzyl-4-piperidone via Borch reductive amination, acylation with 4-fluoro-2-(trifluoromethyl)benzoyl chloride, debenzylation, substitution with 1,4-dichlorophthalazine and Suzuki cross-coupling reaction with 1-methyl-1H-pyrazole-5-boronic acid. The advantages of this synthesis route were the elimination of Boc protection and deprotection and the inexpensive starting materials. Furthermore, the debenzylation reaction was achieved with simplified operational procedure using ammonium formate as hy

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7

Badazhkova, Veronika D., Sergei V. Raik, Dmitry S. Polyakov, Daria N. Poshina, and Yury A. Skorik. "Effect of Double Substitution in Cationic Chitosan Derivatives on DNA Transfection Efficiency." Polymers 12, no. 5 (2020): 1057. http://dx.doi.org/10.3390/polym12051057.

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Recently, much effort has been expended on the development of non-viral gene delivery systems based on polyplexes of nucleic acids with various cationic polymers. Natural polysaccharide derivatives are promising carriers due to their low toxicity. In this work, chitosan was chemically modified by a reaction with 4-formyl-n,n,n-trimethylanilinium iodide and pyridoxal hydrochloride and subsequent reduction of the imine bond with NaBH4. This reaction yielded three novel derivatives, n-[4-(n’,n’,n’-trimethylammonium)benzyl]chitosan chloride (TMAB-CS), n-[(3-hydroxy-5-(hydroxymethyl)-2-methyl-4-pyr

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8

Wang, Hui, Letian Wang, Shanyu Meng, Hanxue Lin, Melanie Correll, and Zhaohui Tong. "Nanocomposite of Graphene Oxide Encapsulated in Polymethylmethacrylate (PMMA): Pre-Modification, Synthesis, and Latex Stability." Journal of Composites Science 4, no. 3 (2020): 118. http://dx.doi.org/10.3390/jcs4030118.

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The compatibility of graphene oxide with its dispersion medium (polymer) plays a critical role in the formation of nanocomposite materials with significant property improvements. Environmentally friendly miniemulsion polymerization, which allows a formation of nanoencapsulation in an aqueous phase and high molecular weight polymer/composite production is one promising method. In this study, we screened a series of amphiphilic modifiers and found that the quaternary ammonium (ar-vinyl benzyl) trimethyl ammonium chloride (VBTAC) pending carbon double bonds could effectively modify the graphene o

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9

Jia, Xu, Minghuan Qian, Wenhui Peng, Xiao Xu, Yuejun Zhang, and Xiaolei Zhao. "Synthesis and Demulsification Properties of Poly (DMDAAC-co-DAMBAC) (9:1) Copolymer." Polymers 15, no. 3 (2023): 562. http://dx.doi.org/10.3390/polym15030562.

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Utilizing the copolymerization modification of dimethyl diallyl ammonium chloride (DMDAAC), the high positive charge density of the copolymer could be maintained, thereby facilitating the deficiency of its monomer in the application. In this paper, poly (DMDAAC-co-DAMBAC) (9:1) was synthesized with an aqueous polymerization method using DMDAAC and methyl benzyl diallyl ammonium chloride (DAMBAC) as monomers and 2,2’-azobis [2-methylpropionamidine] dihydrochloride (V50) as an initiator. Targeted to the product’s weight-average relative molecular mass (Mw), the response surface methodology (RSM)

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10

Kuczera, Janina, Teresa E. Krai, Marian Podolak, and Stanisław Przestalski. "A Joint Effect of Cationic and Anionic Amphiphilic Compounds on the Desorption of Calcium Ions from Lecithin Liposome Membranes." Zeitschrift für Naturforschung C 54, no. 5-6 (1999): 429–37. http://dx.doi.org/10.1515/znc-1999-5-620.

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Abstract The aim of the work was to determine the synergism and antagonism of mixtures of the cationic amphiphilic compounds: N-benzyl-N,N-dimethyl-N-tetradecylammonium chloride (BD TA), N-benzyl-N,N-dimethyl-N-dodecylammonium chloride (BDDA), N-methyl-N-te-tradecyl-morpholinium bromide (MTM), N,N,N-trimethyl-N-tetradecylammonium bromide (TMTA) and those of tripropyltin chloride in a mixture with amphiphilic anionic compounds (a homologous series of sodium alkylsulfonates with n = 2, 4, 6, 8, 10, 12 and 14 alkyl carbon atoms) in the process of calcium ion desorption from liposome lecithin memb

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11

Kawabata, Keigo, Sakura Azuma, Jin Shimada, et al. "Introduction of Cyclic Structures into Phosphonium Salts As Potential Guest Substances for Ionic Clathrate Hydrates." ECS Meeting Abstracts MA2024-02, no. 57 (2024): 3815. https://doi.org/10.1149/ma2024-02573815mtgabs.

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Ionic clathrate hydrates (ICHs) are complex compounds formed from multiple water molecule cages and ionic guest substances. The guest substances are quaternary ammonium and phosphonium salts, among which ICHs with tetra-n-butylammonium bromide (N4444-Br) and tetra-n-butylphosphonium bromide (P4444-Br) are well known. The quaternary onium cations are encapsulated in a water network. Since ICHs also exhibit dissociation temperatures higher than 273 K and large dissociation enthalpies at atmospheric pressure, ICHs have recently been applied to phase change materials (PCMs) [1]. We have introduced

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12

Huang, Yun, Xu Wang, Xianru He, and Yan Yang. "Gel polymer electrolyte based on poly(methyl methacrylate-maleic anhydride)-poly(ethylene glycol) monomethyl ether and organophilic rectorite clay." Clay Minerals 45, no. 4 (2010): 431–40. http://dx.doi.org/10.1180/claymin.2010.045.4.431.

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AbstractA grafted polymer (P(MMA-MAh)-PEGME)) was synthesized by reacting poly(ethylene glycol) monomethyl ether (PEGME) with copolymer of poly(methyl methacrylate-maleic anhydride) (P(MMA-MAh)and end-capping the residual carboxylic acid with methanol. Natural rectorite (REC) was made organophilic by modification with the surfactant dodecyl benzyl dimethyl ammonium chloride. The organoclay was termed OREC and was used as a filler additive to modify gel polymer electrolytes (GPEs) which consisted of the grafted polymer (used as a polymer matrix), propylene carbonate (PC) as a plasticizer and Li

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13

Cardoza, Neal A., Rhyz Pereira, Hussein Badr, et al. "A New Class of 2D Materials - Quaternary Derived Nanostructures - and Their Polysulfide Anchoring Capabilities in Lithium Sulfur Batteries." ECS Meeting Abstracts MA2022-02, no. 4 (2022): 532. http://dx.doi.org/10.1149/ma2022-024532mtgabs.

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Metal-sulfur battery chemistries have garnered a lot of interest due to their 5-10 fold higher theoretical energy densities compared to state-of-the-art lithium-ion batteries, in addition to the abundance and environmental benignity of sulfur. However, the insulating nature of sulfur, the formation and shuttling of polysulfides, are still major drawbacks. In this work we started with quaternary ammonium salts or quat derived nanostructures (QDNs), synthesized using a facile bottom-up reaction, directly from commercial 3D bulk solids1. This approach leads to better functionalization, facile tun

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14

Spiegel, Susanne, and Klaus P. Bader. "Interaction of Quaternary Ammonium and Phosphonium Salts with Photosynthetic Membranes." Zeitschrift für Naturforschung C 56, no. 11-12 (2001): 1057–66. http://dx.doi.org/10.1515/znc-2001-11-1224.

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Abstract Distinct concentration ranges of selected quaternary ammonium and phosphonium salts were elaborated to induce stimulatory or inhibitory effects, respectively, on photosynthetic reactions. By means of fluorescence induction measurements 3 different effects of alkylbenzyldimethylammonium chloride (ABDAC; zephirol) in chloroplast preparations from Pisum sativum were observed. 60 μᴍ ABDAC produced a strong increase in Fmax with concurrently improved Kautsky kinetics. Increased ABDAC concentration (500 μᴍ) led to a strong fluorescence quenching - virtually indistinguishable from the condit

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15

Ma, Youying, Yuying Wang, and Qingtao Zhang. "Experimental Study for Influence of Surfactants Chemical Microstructures on Wetting Effect about Coal Dust in Tongchuan Mining Area." Journal of Chemistry 2020 (July 31, 2020): 1–12. http://dx.doi.org/10.1155/2020/4176186.

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Because of the unsatisfactory dust suppression efficiency, coal dust still threatens production safety and personnel health. In order to understand the influence of the chemical microstructures of the surfactant on the wetting ability and to facilitate the rapid selecting of surfactants with good wetting performances for specific coal dust, fatty acid methyl ester ethoxylate (FMEE), dodecyl dimethyl betaine (BS-12), sodium fatty acid polyoxyethylene ether carboxylate (AEC), and dodecyl dimethyl benzyl ammonium chloride (DDBAC) were selected in this paper to study the wetting ability of these f

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16

Varghese, Jintu Elizabeth, Lynnette Joseph, D. Sajan, R. Aarthi, and C. Ramachandra Raja. "Spectroscopic investigations on the charge transfer and hydrogen bonding effect of the potential bioactive agent 4-methyl-benzyl ammonium chloride hemihydrate: A combined experimental and quantum chemical approach." Chemical Physics Letters 761 (December 2020): 138014. http://dx.doi.org/10.1016/j.cplett.2020.138014.

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17

Dearmond, Patrick D., Graham M. West, Victor Anbalagan, Michael J. Campa, Edward F. Patz, and Michael C. Fitzgerald. "Discovery of Novel Cyclophilin A Ligands Using an H/D Exchange– and Mass Spectrometry–Based Strategy." Journal of Biomolecular Screening 15, no. 9 (2010): 1051–62. http://dx.doi.org/10.1177/1087057110382775.

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Cyclophilin A (CypA) is an overexpressed protein in lung cancer tumors and as a result is a potential therapeutic and diagnostic target. Described here is use of an H/D exchange– and a matrix assisted laser desorption/ionization (MALDI) mass spectrometry–based assay, termed single-point SUPREX (Stability of Unpurified Proteins from Rates of H/D Exchange), to screen 2 chemical libraries, including the 1280-compound LOPAC library and the 9600-compound DIVERSet library, for binding to CypA. This work represents the first application of single-point SUPREX using a pooled ligand approach, which is

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18

Sweeney, Alana Blaise, Marco Salgado, Mei-Chen Kuo, Liam Carroll, and Andrew M. Herring. "Studying the Influence of an Ionomer's Functional Group Size on the Electrochemical Double Layer and Performance of a Water Electrolyzer." ECS Meeting Abstracts MA2025-01, no. 62 (2025): 3021. https://doi.org/10.1149/ma2025-01623021mtgabs.

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Headway in research focused on renewable energy sources, specifically in hydrogen, has grown significantly over the past fifteen years. A bibliometric analysis of green-hydrogen-related publications revealed a multifold increase in these works just from 2016 to 2021, with major themes including hydrogen production and storage, the hydrogen economy and water electrolysis. Water electrolysis, a process to produce molecular hydrogen through the splitting of water, has garnered attention in research focused on the scalability and material choices for industrial-level, sustainable hydrogen producti

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19

Whitfield, Dennis M., M. Younus Meah, and Jiří J. Křepinský. "Ultrasonic Agitation Accelerates cis-Glycosylation with Heterogeneous Promoters." Collection of Czechoslovak Chemical Communications 58, no. 1 (1993): 159–72. http://dx.doi.org/10.1135/cccc19930159.

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Ultrasonic agitation increases the yield of glycosylations with donors such as 3,4,6-tri-O-acetyl-2-azido-2-deoxy-α-D-galactopyranosyl chloride using the heterogeneous promoters silver zeolite, cadmium zeolite or a mixture of silver perchlorate and silver carbonate on celite. The stereospecificity of the glycosylation depends on the nature of the alcohol to be glycosylated, the nature of the solid support and the solvent. Glycosylation catalyzed by silver zeolite in toluene solutions of the donor 3,4,6-tri-O-acetyl-2-deoxy-2-phtalimido-β-D-glucopyranosyl bromide, that usually produce trans-β-g

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20

Duan, Ning, Yao Wen Gao, Teng Zhang, Ke Ming Wu, and Yin Feng Zhang. "Study on Water-Based Paint Stripper for Tinplate." Advanced Materials Research 690-693 (May 2013): 2071–75. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.2071.

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A novel water-based paint stripper was prepared for white, metallic ink and varnish coated on the tinplate steel surface. The effect of accelerator and surfactant on stripping efficiency was investigated with the types and dosage of the accelerator and surfactant, the stripping temperature and stirring up condition. The highest stripping efficiency was achieved with the stripper composited by (mass fraction) 35% benzyl alcohol, 6% propanediol carbonate, 10% formic acid, 2% cetyl tri-methyl ammonium bromide (CTMAB) and 47% distilled water, respectively. This paint stripper had low volatility, a

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21

He, Hui, Jian Chen, Shuang Fei Wang, et al. "Preparation of Cationic Cellulose Obtained from Wood Pulp Using the Microwave." Advanced Materials Research 295-297 (July 2011): 734–37. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.734.

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In this paper, the synthesis techniques of cationic cellulose by microwave irradiation method with bleached sulphate wood pulp and 3-chloro-2-hydroxypropyl tri-methyl ammonium chloride (CHPTMA) are investigated. The results show that the substitution degree of cationic cellulose and the Zeta-potential are the optimal under the conditions of the mass ratio of etherification agent to the cellulose 0.414, molar ratio of NaOH to ether agent 2.17, microwave time 9min, power 400W by the response surface experimental analysis.

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22

Krečmerová, Marcela, Hubert Hřebabecký, Milena Masojídková, and Antonín Holý. "Synthesis of 5-Phenyl-2(1H)-pyrimidinone Nucleosides." Collection of Czechoslovak Chemical Communications 61, no. 3 (1996): 458–77. http://dx.doi.org/10.1135/cccc19960458.

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Reaction of 2-phenyltrimethinium salt 1 with thiourea and subsequent reaction with chloroacetic acid afforded 5-phenyl-2(1H)-pyrimidinone (3). Its silyl derivative 4 was condensed with 1-O-acetyl-2,3,5-tri-O-benzoyl-D-ribofuranose under catalysis with tin tetrachloride or trimethylsilyl trifluoromethanesulfonate to give protected nucleoside 5 together with 5',O6-cyclo-5-phenyl-1,3-bis- (β-D-ribofuranosyl)-6-hydroxy-5,6-dihydro-2(1H,3H)-pyrimidinone (7). The greatest amounts of 7 were formed with the latter catalyst. Nucleosidation of the silyl derivative 4 with protected methyl 2-deoxy-D-ribof

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23

Jin, Qingwu, and Robert M. Coates. "Synthesis of Methoxynor Polyisoprenoid Alcohols by Alkylation of (3-Methoxyallyl)lithium Reagents." Collection of Czechoslovak Chemical Communications 67, no. 1 (2002): 55–74. http://dx.doi.org/10.1135/cccc20020055.

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A series of six methyl enol ether analogs 8-13 of geraniol, (E,E)-farnesol, and (E,E,E)-geranylgeraniol was synthesized from a group of three allylic methyl ethers and three allylic chlorides. Lithiation of the 1-methyl-, or 1-alkenylvinyl ethers with sec-butyllithium at -78 °C followed by alkylations of the resulting (Z)-(3-methoxyallyl)lithium reagents afforded the six possible Z-configured(trans) methoxynor polyprenyl benzyl ethers bearing the methoxy substituent at the internal and terminal double bonds with high Z/E ratios (5 : 1-31 : 1) and 47-80% yields. Reductive cleavage of the benzyl

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24

D., R. Godhani, M. Sanghani A., B. Sanja D., and B. Dobariya P. "Synthesis and antimicrobial elucidation of [1,2,4]-triazole-3-thione derivatives." Journal of Indian Chemical Society Vol. 89, Jul 2012 (2012): 971–74. https://doi.org/10.5281/zenodo.5767111.

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Department of Chemistry, Mahatma Gandhi Campus, Bhavnagar University, Bhavnagar-364 022, Gujarat, India <em>E-mail </em>: drgodhani@yahoo.com <em>Manuscript received 02 November 2()10, revised 14 September 2011, accepted 08 November 2011</em> 4-Nitro benzoyl isothiocyanate (1) is prepared by a reaction of 4-nitro benzoyl chloride and ammonium isothiocyanate. Compound 1 reacts with phenyl hydrazine in the presence of acetone to form 5-(4-nitrophenyl)-l-phenyi-1<em>H</em>-1,2,4-triazole-3(2<em>H</em>)-thione (2). Compounds 2 on reaction with formaldehyde and different aromatic amines in 1,4- dio

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25

Hanna, Naeem B., Milena Masojídková, Pavel Fiedler, and Alois Pískala. "Synthesis of Some 6-Substituted 5-Azacytidines." Collection of Czechoslovak Chemical Communications 63, no. 2 (1998): 222–30. http://dx.doi.org/10.1135/cccc19980222.

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Protected 6-substituted benzyl, phenyl and chloromethyl derivatives of 5-azacytidine 8-10 have been prepared by addition of phenylacetyl- (2), benzoyl- (3) or (chloroacetyl)guanidine (4) to 2,3,5-tri-O-benzoyl-β-D-ribosyl isocyanate (1) and subsequent silylation-mediated cyclization of the obtained acyl(carbamoyl)guanidines 5-7. 4-Amino-6-phenyl-1,3,5-triazin-2(1H)-one (12) was obtained by condensation of carbamoylguanidine (13) with methyl benzoate in presence of methanolic sodium methoxide or by condensation of 13 with triethyl orthobenzoate in N,N-dimethylformamide. Stannic chloride catalyz

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26

A.M. Mohammed, Sawsan, and Watheq K. Salih. "Microwave Assisted Demulsification of Iraqi Crude Oil Emulsions Using Tri-octyl Methyl Ammonium Chloride (TOMAC) Ionic Liquid." Iraqi Journal of Chemical and Petroleum Engineering 15, no. 3 (2014): 27–35. http://dx.doi.org/10.31699/ijcpe.2014.3.4.

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In the present work, the efficiency of Tri-octyl Methyl Ammonium Chloride (TOMAC) ionic liquid was investigated as new and green demulsifier for three types of Iraqi crude oil emulsions (Nafut Khana (NK), Kirkuk and Basrah). The separation efficiency was studied at room temperature and by using microwave heating technique. Several batch experiments were done to specify the suitable conditions for the emulsification and demulsification which were specified as 45 minutes and 3000 rpm for crude oil emulsification while the ionic liquid doses were (500,300,150,50) ppm and the conditions of microwa

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27

Deng, Jian Mian, Jin Dun Liu, Hao Qin Zhang, Ya Tao Zhang, and Dong Cheng. "Preparation and Characterization of the Tri-Channel Hollow Fiber Charged Mosaic Membrane." Advanced Materials Research 150-151 (October 2010): 1315–20. http://dx.doi.org/10.4028/www.scientific.net/amr.150-151.1315.

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Charged mosaic membrane (CMM) has high water flux, low salt retention and high organic rejection. The tri-channel hollow fiber charged-mosaic membrane (CMM) was prepared by interfacial polymerization (IP). The tri-channel polysulfone (PSF) hollow fiber ultrafiltration(UF) membrane was used as the support membrane. Polyethylenimine (PEI), 2, 5-diamino-benzenesulfonic acid (DIA) and basic fuchsin (BF) were used as aqueous phase monomer. Trimesoyl chloride (TMC) was used as organic phase monomer. ATR-IR, scanning electron microscope (SEM) and gas sorption analyzer (GSA) were applied in structural

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28

Kulkarni, Pravin S., Amol U. Khandebharad, Swapnil R. Sarda, and Brijmohan R. Agrawal. "Synthesis and Docking Studies of Novel Bis(2-(Substituted(methyl)amino)-4-phenylthiazol-5-yl)methanone." Asian Journal of Chemistry 34, no. 11 (2022): 3015–20. http://dx.doi.org/10.14233/ajchem.2022.24030.

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A new series of novel synthesis of bis(2-(substituted(methyl)amino)-4-phenylthiazol-5-yl)methanone (PVS 1-9) is reported. The carbonyl isothiocyanate (3) was synthesized by a para-cleavage of C–Cl bond of benzoyl chloride (1) with ammonium thiocyanate (2). The presence of carbonyl group in acyl isothiocyanates enhance the reactivity of acyl isothiocyanates upon reaction with substituted secondary amine (4) give n-alkylated adduct (5), which upon the reaction with dichloro acetone give target compound 7. Substituted derivatives as inhibitors against lungs, breast and EJFR assist cancer based on

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29

Iqbal, Kashif, Amjed Javid, Abdur Rehman, Aisha Rehman, Munir Ashraf, and Hafiz Affan Abid. "Single bath dyeing of modified nylon/cotton blended fabrics using direct/acid dyes." Pigment & Resin Technology 49, no. 3 (2020): 165–70. http://dx.doi.org/10.1108/prt-09-2019-0084.

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Purpose This study aims to deal with the dyeing of nylon-/cotton-blended fabric in one bath using direct and acid dyes. Design/methodology/approach The cellulose in cotton/nylon-blended fabric was chemically modified using 3-chloro-2-hydroxypropyl tri-methyl ammonium chloride (CHPTAC) as cationizing agent to impart positive charge on the cellulose. The modified and unmodified blended fabrics were dyed in a single bath with direct and acid dyes under various concentrations of 0.5, 1, 2, 4 and 6 per cent on the weight of fabric by exhaust method. The dyeing of modified and unmodified fabrics was

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30

Mastihubová, Mária, and Vladimír Mastihuba. "From Hamamelitannin Synthesis to the Study of Enzymatic Acylations of D-Hamamelose." Biomolecules 13, no. 3 (2023): 519. http://dx.doi.org/10.3390/biom13030519.

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The bioactive natural substance, hamamelitannin, was effectively synthesized in two ways. The chemical acylation of 2,3-O-isopropylidene-α,β-D-hamamelofuranose promoted by Bu2SnO using 3,4,5-tri-O-acetylgalloyl chloride, followed by the deprotection provided hamamelitannin in 79%. Pilot enzymatic benzoylation of D-hamamelose using vinyl benzoate (4 equiv.) and Lipozyme TL IM as a biocatalyst in t-butyl methyl ether (t-BuMeO) gave mainly benzoylated furanoses (89%), of which tribenzoates reached (52%). Enzymatic galloylation of 2,3-O-isopropylidene-α,β-D-hamamelofuranose with vinyl gallate unde

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31

Obón, E., A. Fortuny, M. T. Coll, and A. M. Sastre. "Mathematical modelling of neodymium, terbium and dysprosium solvent extraction from chloride media using methyl-tri(octyl/decyl)ammonium oleate ionic liquid as extractant." Hydrometallurgy 173 (November 2017): 84–90. http://dx.doi.org/10.1016/j.hydromet.2017.08.011.

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Obón, E., A. Fortuny, M. T. Coll, and A. M. Sastre. "Experimental and modelling studies of neodymium solvent extraction from chloride media with methyl-tri(octyl/decyl)ammonium oleate ionic liquid diluted in kerosene." Hydrometallurgy 174 (December 2017): 216–26. http://dx.doi.org/10.1016/j.hydromet.2017.10.021.

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Bouzidi, H., L. Otmani, R. Doufnoune, L. Zerroual, and D. Benachour. "Influence of Membrane Type on Some Electrical Properties of a Single Microbial Fuel Cell." Engineering, Technology & Applied Science Research 12, no. 3 (2022): 8492–99. http://dx.doi.org/10.48084/etasr.4813.

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The effects of different parameters on the electric output of air-cathode microbial fuel cells were investigated in this work. The single microbial fuel cell was equipped by modifying Proton Exchange Membranes (PEM). Two membrane types were prepared: first by using the combination of Poly Vinyl Alcohol (PVA) with Polystyrene Sulfonate (PSSNa), while the second membrane was elaborated by mixing Poly Vinyl Chloride (PVC) with Methyl Tri-Octyl Ammonium (MTOA) chloride. The PEMs were incorporated into the air-cathode to form a Membrane Electrode Assembly (MEA) to promote electricity generation. PV

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Abdelmonsef, Aboubakr H., Mohamed El-Naggar, Amal O. A. Ibrahim, et al. "Evaluation of Quinazolin-2,4-Dione Derivatives as Promising Antibacterial Agents: Synthesis, In Vitro, In Silico ADMET and Molecular Docking Approaches." Molecules 29, no. 23 (2024): 5529. http://dx.doi.org/10.3390/molecules29235529.

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Abstract: A series of new quinazolin-2,4-dione derivatives incorporating amide/eight-membered nitrogen-heterocycles 2a–c, in addition, acylthiourea/amide/dithiolan-4-one and/or phenylthiazolidin-4-one 3a–d and 4a–d. The starting compound 1 was prepared by reaction of 4-(2,4-dioxo-1,4-dihydro-2H-quinazolin-3-yl)-benzoyl chloride with ammonium thiocyanate and cyanoacetic acid hydrazide. The reaction of 1 with strong electrophiles, namely, o-aminophenol, o-amino thiophenol, and/or o-phenylene diamine, resulted in corresponding quinazolin-2,4-dione derivatives incorporating eight-membered nitrogen

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Popovic-Djordjevic, Jelena, Vesna Vitnik, Zeljko Vitnik, and Milovan Ivanovic. "Glutarimides: Biological activity, general synthetic methods and physicochemical properties." Chemical Industry 69, no. 5 (2015): 523–36. http://dx.doi.org/10.2298/hemind140701073p.

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Glutarimides, 2,6-dioxopiperidines are compounds that rarely occur in natural sources, but so far isolated ones exert widespread pharmacological activities, which makes them valuable as potential pharmacotherapeutics. Glutarimides act as androgen receptor antagonists, anti-inflammatory, anxiolytics, antibacterials, and tumor suppressing agents. Some synthetic glutarimide derivatives are already in use as immunosuppressive and sedative (e.g., thalidomide) or anxiolytics (buspirone) drugs. The wide applicability of this class of compounds, justify the interest of scientists to explore new pathwa

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MA, PU, HUAMIN ZHAI, KWEI-NAM LAW, and CLAUDE DANEAULT. "Influence of oxidation and cationization on the properties of thermomechanical pulp fibers." October 2010 9, no. 10 (2010): 36–43. http://dx.doi.org/10.32964/tj9.10.36.

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Thermomechanical pulp (TMP) fibers were separately oxidized using 4-acetamido-2,2,6,6-tetramethylpiperidyl-1-oxyl (4-acetamido TEMPO) and cationized by 2,3-epoxy-propyl-tri-methyl ammonium chloride. The goal was to evaluate the influences of the interaction of oxidized, cationized, and untreated fiber components on paper properties. TEMPO-mediated oxidation can enhance interfiber bonding potential of mechanical long fibers. Cationization can improve the interfiber bonding only when the cationic charge density is lower than 400 mmol/kg; the bonding capacity drops off with increasing cationic ch

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Seema, Bagchi (Chattaraj), Chakrabortty Ashutosh, K. Kuila D., and Chandra Lahiri Sujit. "Comparison of the composition profiles of the low explosives in India from forensic exhibits and a brief discussion on preventive forensic techniques." Journal of Indian Chemical Society 93, Jul 2016 (2016): 889–906. https://doi.org/10.5281/zenodo.5639449.

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Central Forensic Science Laboratory, Government of India, 30, Gorachand Road, Kolkata-700 014, India E-mail : bagchiseema@gmail.com, sujitclahiri@yahoo.com Fax : 91-33-22849442 Geological Survey of India, Government of India, Kolkata-700 069, India <em>E-mail</em> : cashu@rediffmail.com Chemical Examination Laboratory, Excise Department, Government of West Bengal, Kolkata-700 046, India <em>E-mail</em> : kuiladk@rediffmail.com More than 1650 pre blast and post blast exhibits were analyzed using routine analytical procedures supplemented by advanced analytical techniques like Ion-Chromatography

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Hussain Mian, Abrar. "Isolation And Characterization Of Biosurfactant Producing Bacteria From Different Environmental Soil Samples." Journal of Toxicology and Environmental Sciences 1, no. 1 (2021): 36–47. http://dx.doi.org/10.55124/jtes.v1i1.133.

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Biosurfactants are natural substances produced by several bacterial and fungal organisms that are amphiphilic and are extracellular (a part of the cell membrane). Biosurfactants can reduce the stress between solids and liquids on the surface and at the end. Biosurfactants have several properties, i.e. they are stable, less harmful, as well as readily degradable, and extremely eco-friendly. Biosurfactants also have a wide range of industrial uses because they are a versatile category of chemical substances. The principal justification for conducting such research was the isolation of possible b

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Muhammad, M. A., A. M. Jimoh, and A. Awwal. "Synthesis and Characterization of a Butenafine Analogue." Asian Journal of Applied Chemistry Research, September 16, 2018, 1–11. http://dx.doi.org/10.9734/ajacr/2018/v2i19568.

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Aims: The study aims: (I) To synthesise N-(4-(tert-butyl) benzyl)-1-(4-tert-butyl) phenyl)-N-methyl methanaminium chloride, an analogue of butenafine from tertiary-butyl benzyl derivatives, (II) to compare the solvent actions of Tetrahydrofuran (THF), acetonitrile, methanol and 1,2-dichloroethane (DCE), and the reducing efficiencies of NaBH4 and sodium triacetoxyborohydride (STAB) during the synthesis. Study Design: The study involved laboratory experiments leading to the synthesis of the target compound by varying the non-aqueous solvents used, the reducing agent and the temperature of

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Li, Jiaxue, Ming Duan, Mengyuan Nie, Qiang Liang, and Shenwen Fang. "Synthesis of Multibranched Polyacrylate Demulsifiers via RAFT Polymerization and Investigation of Their Demulsification Performance Under Coupled Electric Field Conditions." Journal of Applied Polymer Science, June 5, 2025. https://doi.org/10.1002/app.57445.

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ABSTRACTCurrently, block polyether demulsifiers synthesized through the ring‐opening polymerization of ethylene oxide and propylene oxide are predominantly utilized in oilfields. However, their synthesis requires high‐temperature and high‐pressure conditions, accompanied by significant safety risks and economic costs. Consequently, this study successfully prepared a series of novel block polyacrylate demulsifiers (P(MA‐b‐DBC)) via reversible addition–fragmentation chain transfer (RAFT) polymerization using methyl acrylate (MA) and acryloyloxyethyl benzyl dimethyl ammonium chloride (DBC) as mon

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Kunti, Nitya Narayan, and Ranjan Sengupta. "Reduction of filler-filler interaction and hysteresis loss of carbon black filled rubber compound by using modified carbon Black." Progress in Rubber, Plastics and Recycling Technology, December 16, 2022, 147776062211456. http://dx.doi.org/10.1177/14777606221145699.

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The carbon black, used in rubber compound as reinforcing filler, improves the strength, durability, and wear resistance of the rubber compound. However, it causes filler-filler interaction and results in extensive hysteresis energy losses on deformation. This research aims to reduce hysteresis energy loss of rubber compound by reducing filler-filler interaction and by improving the filler dispersion in rubber matrix. In this study, the effect of carbon black treated with benzyl tri-ethyl ammonium chloride (BTEAC) on solution styrene butadiene rubber and butadiene rubber (SSBR-BR) system was st

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Alkayal, Nazeeha S., Sobhy E. Elsilk, Abeer S. Elsherbiny, and Nehal A. Salahuddin. "Fashionable epoxy/clay nanocomposites using modified clay-loaded methyl blue dye." Environmental Sciences Europe 35, no. 1 (2023). http://dx.doi.org/10.1186/s12302-023-00742-3.

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AbstractIn this work, the elimination of methyl blue (MB) acidic dye from an aqueous solution was investigated using two types of modified montmorillonite. One was modified with dimethyl benzyl hydrogenated tallow ammonium chloride which was named claytone (APA). The other montmorillonite is modified with poly oxy propylene diamine (Jeffamine D-2000) and was referred to as clayD2000. The adsorption efficiency of claytone and clay D2000 was 1.4 mg/g at pH 2 and 1.4 mg/g at pH 6, respectively, after 60 min. Pseudo-second-order was the best model to explain the adsorption process for both surface

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Limban, Carmen, Alexandru-Vasile Missir, Ileana Cornelia Chirita, Corina Ilie, and Miron Teodor Caproiu. "Studies on Synthesis of Some Novel Thioureides of 2-(4-Methyl-phenoxymethyl)benzoic Acid with Antimicrobial Activity." Revista de Chimie 59, no. 10 (2008). http://dx.doi.org/10.37358/rc.08.10.1983.

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Thioureides of 2-(4-methyl-phenoxymethyl)benzoic acid have been synthesised by reaction of 2-(4-methyl-phenoxymethyl)benzoyl isothiocyanate with primary aromatic amines. The mentionated isothiocyanate was obtained in the reaction of the 2-(4-methyl-phenoxymethyl)benzoic acid chloride with ammonium thiocyanate. The acid chloride was prepared by reacting the coresponding acid, the 2-(4-methyl-phenoxymethyl)benzoic acid, with thionyl chloride and the aforementioned acid from potassium para-cresolate with phtalide. The reaction conditions were established to ensure the best yields. These new thiou

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Ibrahem Aljabari, Fadhel, Haider Abdulkareem Almashhadani, Marowah H. Jehad, and Mustafa M. Kadhim. "Synthesis and Characterization of Molecularly Imprinted Polymers for Metronidazole by using Allyl Chloride and Allyl Bromide as Monomers." Research Journal of Pharmacy and Technology, February 28, 2023, 715–20. http://dx.doi.org/10.52711/0974-360x.2023.00122.

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Metronidazole-MIPs were prepared by using (MDZ) as the template as well as allylchloride (AYC) or allylbromide (AYB) as monomer, used (TMPTA) tri-methylol propane tri-acrylate or ethylene glycol di-methyl acrylate (EGDMA) as cross-linker and initiator used (BP) benzyl peroxide. By using different plasticizers (di butyl Phthalate (DBPH), Nitrobenzene (NB), oleic acid (OA) and paraffin) for MDZ-MIP1 and (Di-butyl sebecate (DBS), Di-methyl acrylate (DMA), Tributylphosphate(TBP) and Tris(ethylhexyl phosphate (TEHP) ) for MDZ-MIP2. Membranes of MIPs were prepared in PVC matrix. The characterization

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Limban, Carmen, Alexandru-Vasile Missir, Ileana Cornelia Chirita, George Mihai Nitulescu1, Corina Ilie, and Miron Teodor Caproiu. "The Synthesis and Characterization of some New Thioureides of 2-(4-Methyl-phenoxymethyl)benzoic Acid with Antimicrobial Activity." Revista de Chimie 59, no. 11 (2008). http://dx.doi.org/10.37358/rc.08.11.2012.

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It is well known that many compounds bearing thioureide structure have been reported to have antimicrobial activity and some of these thioureide compounds are found to be associated with other therapeutical activities. The present application is a continuation of our research concerning the synthesis and characterization of 2-(4-methyl-phenoxymethyl)benzoic acid thioureides with antimicrobial activities. The new thioureides were obtained in three stages. In the first stage we prepared the 2-(4-methyl-phenoxymethyl)benzoic acid by reacting potassium para-cresolate with phtalide. The second stag

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Zhang, Wanping, Zihao Gao, Haiyang Zhu, and Qianjie Zhang. "Mixed micellization of cationic/anionic amino acid surfactants: Synergistic effect of sodium lauroyl glutamate and alkyl tri-methyl ammonium chloride." Journal of Dispersion Science and Technology, June 9, 2021, 1–13. http://dx.doi.org/10.1080/01932691.2021.1929289.

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Ganesh, Bharathi Hassan, Baladhandapani Aruchamy, Prasanna Ramani, et al. "Exploration of N‐Tetra‐Substituted Imidazoles as Effective Agents To Counteract Gastric Cancer Cell Viability: Synthesis and Biological Evaluation." ChemistrySelect 8, no. 48 (2023). http://dx.doi.org/10.1002/slct.202302768.

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AbstractThe tetra‐substituted imidazole offers more possibilities for modification and functionalization, allowing for fine‐tuning of the compound‘s biological activity. The substituents attached to the imidazole ring can be strategically chosen to introduce specific functional groups, steric effects, or electronic properties, thereby influencing the compound‘s overall bioactivity. An efficient one‐pot synthesis of 2,4,5‐tri and 1,2,4,5‐tetrasubstituted imidazoles was performed, which involves benzyl (1,2‐diphenylethane‐1,2‐dione), N‐methyl pyrrole‐2‐carboxaldehyde, appropriate primary amine,

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Bui, Long Hoang Dang, Keitaro Aoki, Tomonari Tanaka, and Yuji Aso. "Reactive extraction for the separation of glyceric acid from aqueous solutions with 2-naphthaleneboronic acid and tri-octyl methyl ammonium chloride." Biotechnology and Bioprocess Engineering, May 10, 2024. http://dx.doi.org/10.1007/s12257-024-00110-9.

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Bui, Long Hoang Dang, Keitaro Aoki, Tomonari Tanaka, and Yuji Aso. "Erratum: Reactive extraction for the separation of glyceric acid from aqueous solutions with 2-naphthaleneboronic acid and tri-octyl methyl ammonium chloride." Biotechnology and Bioprocess Engineering, June 4, 2024. http://dx.doi.org/10.1007/s12257-024-00114-5.

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Manzak, Aynur, Özlem Demirbaş, Yasemin Yıldız, and Murat Teker. "Adsorption and transport of acid dye through polymer inclusion membrane with Aliquat 336 and TBP." Water, Air, & Soil Pollution 235, no. 8 (2024). http://dx.doi.org/10.1007/s11270-024-07318-8.

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AbstractColour is typically the initial pollutant identified in wastewater. Membrane separation represents a novel approach to separation processes, with expectations of supplanting many traditional separation systems. The aim of this study is to investigate polymer inclusion membranes (PIMs) consisting of tri octyl methyl ammonium chloride as the carrier, tributylphosphate as the modifier, poly-vinyl chloride as the base polymer and 2-Nitro phenyl pentyl ether as the plasticizer for removing an acid dye (Red Erionyl A-3G) from aqueous solution. The dye adsorption on the membrane surface and i

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