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Journal articles on the topic 'Naphthly amine'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Srivastava, Smriti, Jun Luo, Daniel Whalen, Katherine N. Robertson, and Amitabh Jha. "Concise Synthesis of Naphthalene-Based 14-Aza-12-Oxasteroids." Molecules 30, no. 2 (2025): 415. https://doi.org/10.3390/molecules30020415.

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A concise, transition metal-free four-step synthetic pathway has been developed for the synthesis of tetracyclic heterosteroidal compounds, 14-aza-12-oxasteroids, starting from readily available 2-naphthol analogues. After conversion of 2-naphthols to 2-naphthylamines by the Bucherer reaction, subsequent selective C-acetylation was achieved via the Sugasawa reaction and reduction of the acetyl group using borohydride, which resulted into the corresponding amino-alcohols. The naphthalene-based amino-alcohols underwent double dehydrations and double intramolecular cyclization with oxo-acids lead

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2

Shi, Renyi, Lijun Lu, Hangyu Xie, et al. "C8–H bond activation vs. C2–H bond activation: from naphthyl amines to lactams." Chemical Communications 52, no. 90 (2016): 13307–10. http://dx.doi.org/10.1039/c6cc06358f.

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Pd-catalyzed selective amine-oriented C8–H bond functionalization/N-dealkylative carbonylation of naphthyl amines has been achieved. The amine group from dealkylation is proposed to be the directing group for promoting this process. It represents a straightforward and easy method to access various biologically important benzo[cd]indol-2(1H)-one derivatives.

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3

Bittner, Nataly, Andy Boon, Evert H. Delbanco, Christof Walter, and Angela Mally. "Assessment of aromatic amides in printed food contact materials: analysis of potential cleavage to primary aromatic amines during simulated passage through the gastrointestinal tract." Archives of Toxicology 96, no. 5 (2022): 1423–35. http://dx.doi.org/10.1007/s00204-022-03254-w.

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AbstractRecent analyses conducted by German official food control reported detection of the aromatic amides N-(2,4-dimethylphenyl)acetamide (NDPA), N-acetoacetyl-m-xylidine (NAAX) and 3-hydroxy-2-naphthanilide (Naphthol AS) in cold water extracts from certain food contact materials made from paper or cardboard, including paper straws, paper napkins, and cupcake liners. Because aromatic amides may be cleaved to potentially genotoxic primary amines upon oral intake, these findings raise concern that transfer of NDPA, NAAX and Naphthol AS from food contact materials into food may present a risk t

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4

Journal, Baghdad Science. "Preparation of some azo compounds by diazotization and coupling of 2- amino -5 – thiol -1,3,4- thiadizaole." Baghdad Science Journal 4, no. 2 (2015): 271–75. http://dx.doi.org/10.21123/bsj.4.2.271-275.

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2- amino -5- thiol-1,3,4- thiadiazole (S1) was prepared by cyclic locking of thiosemicarbazide in the presence of anhydrous sodium carbonate and CS2. diazotization of (S1) compound gave diazonium salt (S2) that reacts with different activated aromatic compounds to get the following azo compounds ,2 [(4- aminophenyl) diazenyl ] 1,3,4- thiazdiazole-5- thiol (S3) ,2-[4-amino- 1-naphthyl diazenyl] -1,3,4 – thiazdiazole-5-thiol (S4) , 3-amino-4-[(5- mercapto -1,3,4- thiadiazole -2-yl) diazenyl ] phenol(S5) ,1-[(5-mercapto-1,3,4-thiadiazole-2-yl) diazenyl] -2-naphthol (S6) , 5-{[4-(dimethylamino) ph

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5

Saleh, Mohammad M., and Suhair S. Dauood. "Preparation of some azo compounds by diazotization and coupling of 2- amino -5 – thiol -1,3,4- thiadizaole." Baghdad Science Journal 4, no. 2 (2021): 271–75. http://dx.doi.org/10.21123/bsj.2007.4.2.271-275.

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2- amino -5- thiol-1,3,4- thiadiazole (S1) was prepared by cyclic locking of thiosemicarbazide in the presence of anhydrous sodium carbonate and CS2. diazotization of (S1) compound gave diazonium salt (S2) that reacts with different activated aromatic compounds to get the following azo compounds ,2 [(4- aminophenyl) diazenyl ] 1,3,4- thiazdiazole-5- thiol (S3) ,2-[4-amino- 1-naphthyl diazenyl] -1,3,4 – thiazdiazole-5-thiol (S4) , 3-amino-4-[(5- mercapto -1,3,4- thiadiazole -2-yl) diazenyl ] phenol(S5) ,1-[(5-mercapto-1,3,4-thiadiazole-2-yl) diazenyl] -2-naphthol (S6) , 5-{[4-(dimethylamino) ph

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6

Ravindra, S. Dhivare, and S. Rajput Shankarsing. "SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF FIVE MEMBERED CYCLIC IMIDE DERIVATIVES OF MONO, DI AND TRI SUBSTITUTED AROMATIC AMINES AND NAPTHYL AMINE." World Journal of Pharmaceutical Research 4, no. 6 (2019): 1650–58. https://doi.org/10.20959/wjpr20156-3632.

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The five-membered cyclic imide derivatives were prepared by reacting succinic anhydride with substituted aromatic amines and naphthyl amine to get 3-(N-phenyl carbamoyl) propanoic acid and 3-(N-napthylcarbamoyl) propanoic acid. These intermediates underwent ring closer with acetyl chloride furnished five-membered cyclic imides derivatives. All these derivatives were screened for antimicrobial activities.

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7

Hashimoto, Masayuki, Mitsuru Fukui, Kouichi Hayano, and Masahito Hayatsu. "Nucleotide Sequence and Genetic Structure of a Novel Carbaryl Hydrolase Gene (cehA) from Rhizobium sp. Strain AC100." Applied and Environmental Microbiology 68, no. 3 (2002): 1220–27. http://dx.doi.org/10.1128/aem.68.3.1220-1227.2002.

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ABSTRACT Rhizobium sp. strain AC100, which is capable of degrading carbaryl (1-naphthyl-N-methylcarbamate), was isolated from soil treated with carbaryl. This bacterium hydrolyzed carbaryl to 1-naphthol and methylamine. Carbaryl hydrolase from the strain was purified to homogeneity, and its N-terminal sequence, molecular mass (82 kDa), and enzymatic properties were determined. The purified enzyme hydrolyzed 1-naphthyl acetate and 4-nitrophenyl acetate indicating that the enzyme is an esterase. We then cloned the carbaryl hydrolase gene (cehA) from the plasmid DNA of the strain and determined t

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8

Barlin, GB, and W. Tan. "Potential Antimalarials. III. N4-Substituted 7-Bromo-1,5-naphthyridin-4-amines." Australian Journal of Chemistry 38, no. 3 (1985): 459. http://dx.doi.org/10.1071/ch9850459.

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A series of new N4-substituted 7-bromo-1,5-naphthyridin-4-amines has been prepared from nicotinic acid through 3-bromo-8-chloro- 1,5- naphthyridine by nucleophilic replacement of the 8-chloro substituent with appropriate amines. Several of these compounds, namely 7-bromo-N- (4′-diethylamino-1′-methylbutyl)-1,5-naphthy-ridin-4-amine (′5-azabromoquine'), 4-(7′-bromo-1′,5′-naphthyridin-4′-ylamino)-2-(diethylamino-methyl)phenol and 7-bromo-N-(2′-diethylaminoethyl)-1,5- naphthyridin-4-amine showed significant antimalarial acivity. Apparent cures were effected when these test chemicals were injected

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9

Swetha, Vandana P., Aditya Basu, and Prashant S. Phale. "Purification and Characterization of 1-Naphthol-2-Hydroxylase from Carbaryl-Degrading Pseudomonas Strain C4." Journal of Bacteriology 189, no. 7 (2007): 2660–66. http://dx.doi.org/10.1128/jb.01418-06.

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ABSTRACT Pseudomonas sp. strain C4 metabolizes carbaryl (1-naphthyl-N-methylcarbamate) as the sole source of carbon and energy via 1-naphthol, 1,2-dihydroxynaphthalene, and gentisate. 1-Naphthol-2-hydroxylase (1-NH) was purified 9.1-fold to homogeneity from Pseudomonas sp. strain C4. Gel filtration and sodium dodecyl sulfate-polyacrylamide gel electrophoresis showed that the enzyme is a homodimer with a native molecular mass of 130 kDa and a subunit molecular mass of 66 kDa. The enzyme was yellow, with absorption maxima at 274, 375, and 445 nm, indicating a flavoprotein. High-performance liqui

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10

Kartasasmita, Rahmana Emran, and Inayah Inayah. "Modifikasi Metode Penentuan Amina Aromatik Primer Tidak Tersulfonasi dalam Bahan Baku Zat Warna Tartrazin Dihitung sebagai Anilina secara Spektofotometri UV-Sinar Tampak." Acta Pharmaceutica Indonesia 37, no. 4 (2012): 123–29. http://dx.doi.org/10.5614/api.v37i4.4550.

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Senyawa amina aromatik primer tidak tersulfonasi merupakan suatu cemaran yang dapat ditemukan di dalam zat warna. Disebabkan toksisitasnya, kadar cemaran ini dibatasi pada tingkat maksimum tertentu, secara khusus ditetapkan sebagai anilina dengan batas maksimum sebesar 100 ppm. Pada kompendial resmi yang dikeluarkan oleh Joint FAO/WHO Expert Committee on Food Additives (JECFA) penentuan senyawa amina aromatik primer tidak tersulfonasi dilakukan melalui reaksi diazotisasi dan kopling diazo dengan menggunakan senyawa garam natrium 2-naftol-3,6 disulfonat sebagai pereaksi pengkopling. Penelitian

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11

Ibrahim, Mohamed N., Salaheddin A. I. Sharif, Ahmad N. EL-Tajory, and Asma A. Elamari. "Synthesis and Antibacterial Activities of Some Schiff Bases." E-Journal of Chemistry 8, no. 1 (2011): 212–16. http://dx.doi.org/10.1155/2011/258340.

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Schiff basesp-hydroxybenzylidene-2-carboxyaniline,p-nitrobenz-ylidene-2-carboxyaniline,p-(N, N-dimethyl)aminobenzylidene-2-carboxyaniline,N-(4-hydroxybezylidene)-benzene-1,2-diamine,N--(4-nitrobezylidene)benzene-1,2-diamine,N-(4-(N, N-dimethylaminobezylidene)benzene-1,2-diamine,N-(4-(N,N-dimethylamino)benzylidene)naphthalen-1-amine,N-(4-nitrobenzylidene)naphthalen-1-amine,N--(4-chlorobenzylidene)naphthalen-1-amine,sodium-4-(4-(N,N-dimethyl amino)benzylideneamino)naphthalene-1-sulfonate,sodium -4-(4-nitrobenzylidene-amino)naphthalene-1-sulfonate and sodium-4-(4-chlorobenzylideneamino) naphthale

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12

Bahatheg, Ghayah, Rajesh Kuppusamy, Muhammad Yasir, David StC Black, Mark Willcox, and Naresh Kumar. "Short Tryptamine-Based Peptoids as Potential Therapeutics for Microbial Keratitis: Structure-Function Correlation Studies." Antibiotics 11, no. 8 (2022): 1074. http://dx.doi.org/10.3390/antibiotics11081074.

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Peptoids are peptidomimetics that have attracted considerable interest as a promising class of antimicrobials against multi-drug-resistant bacteria due to their resistance to proteolysis, bioavailability, and thermal stability compared to their corresponding peptides. Staphylococcus aureus is a significant contributor to infections worldwide and is a major pathogen in ocular infections (keratitis). S. aureus infections can be challenging to control and treat due to the development of multiple antibiotic resistance. This work describes short cationic peptoids with activity against S. aureus str

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13

Csuvik, Oszkár, and István Szatmári. "Synthesis of Bioactive Aminomethylated 8-Hydroxyquinolines via the Modified Mannich Reaction." International Journal of Molecular Sciences 24, no. 9 (2023): 7915. http://dx.doi.org/10.3390/ijms24097915.

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8-hydroxyquinoline (oxine) is a widely known and frequently used chelating agent, and the pharmacological effects of the core molecule and its derivatives have been studied since the 19th century. There are several synthetic methods to modify this core. The Mannich reaction is one of the most easily implementable examples, which requires mild reaction conditions and simple chemical reagents. The three components of the Mannich reaction are a primary or secondary amine, an aldehyde and a compound having a hydrogen with pronounced activity. In the modified Mannich reaction, naphthol or a nitroge

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14

Kang, Soo Kyung, Jeongkyu Woo, Ju Hee Han, et al. "Platinum (II) Complexes Based on Tetradentate Pyridine-Containing Ligands for Phosphorescent Organic Light-Emitting Diodes." Journal of Nanoscience and Nanotechnology 20, no. 11 (2020): 6683–87. http://dx.doi.org/10.1166/jnn.2020.18774.

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In this study, we designed and synthesized two phosphorescent emitting materials based on tetradentate pyridine-containing ligands. Their photophysical properties were examined for OLEDs and multilayer devices using these materials were fabricated in the following sequence; ITO (180 nm)/4,4′,4″-Tris[2-naphthyl(phenyl)amino]triphenylamine (2-TNATA) (30 nm)/N,N′-di(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl)4,4′-diamine (NPB) (20 nm)/Tris(4-carbazoyl-9-ylphenyl)amine (TCTA) (10 nm)/4,4′-Bis(N-carbazolyl)-1,1′-biphenyl(CBP): 5, 8, 15% Platinum (II) complexes (20 nm)/1,3,5-Tris(1-Phenyl-1H-benzimidaz

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15

Dilip, Kumar, Vaish Anurag, and Nayan Ram. "Equilibrium studies on binary and ternary complexes of palladium and cadmium with some nitrogen and oxygen donor ligands." Journal of Indian Chemical Society Vol. 82, Jun 2005 (2005): 490–93. https://doi.org/10.5281/zenodo.5830426.

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Department of Chemistry, Hindu College, Moradabad-244 001, India <em>E-mail</em>: ramnayan_2003@yahoo.co.in          Fax: 91-591-2440070 <em>Manuscript received 26 August 2003, revised 9 November 2004, accepted 2 March 2005</em> The metal-ligand equilibrium reactions involving palladium(II), cadmium(ll) and 1,2-dihydroxybenzene, 1-amino-2-naphthol4-sulfonic acid, 8-amino-1-naphthol-3,6-disulfonic acid, <em>o</em>-aminophenol and 4,5-dihydroxybcnzene-1 ,3-disulfonic acid have been studied in solution at 25º and at ionic strength of 0.10 <em>M</em> (KNO<sub>3</sub>)

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16

Journal, Baghdad Science. "Synthesis of some Schiff's bases derivatives from aminoazo compounds." Baghdad Science Journal 4, no. 3 (2007): 416–19. http://dx.doi.org/10.21123/bsj.4.3.416-419.

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Reaction of,2- [( 4- amio phenyl ) diazenyl] 1,3,4- thiadiazole -5- thiol (S1) with p- chlorobenzeldehyde,3,4 – dimethoxy benzaldehyde and pyrrol-2- carbonxaldehyde gave -5- [{4-(4-chlorobenzylidene amino) phenyl} diezenyl]-1,3,4- thiadiazole-2- thiol (S2),5-[{ 4-[(3,4- dimethoxybenzyldene )amino phenyl ] diazenyl)-1,3,4- thiadiazole-2-thiol,(S3) and -5- [4-(1,H – pyrrol -2- yl- methylene)amino phenyl] diazenyl)-1,3,4- thiadiazole-2- thiol (S4) respectively as schiff's bases compounds. On the same route-2-[(4-amino-1- naphthyl ) diazenyl] -1,3,4- thiadiazole -5- thiol (S5) reacts with –p- chlo

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17

El-Gaby, Mohamed S. A., Mohamed I. Hassan, Modather F. Hussein, Ahmed M. Ali, Mahmoud M. Elaasser, and Faraghally A. Faraghally. "Synthesis, characterization and in vitro biological screening of 4-hydroxy naphthalen-1-yl, naphtho[1,2-b]furan, benzo[h]chromene and 5,6-dihydropyridazine derivatives containing sulfonamide moiety." Mediterranean Journal of Chemistry 7, no. 5 (2018): 346–58. http://dx.doi.org/10.13171/mjc751912061355msaeg.

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In this study, a series of 4-((4-hydroxynaphthalen-1-yl)diazenyl)benzenesulfonamides have been prepared by subsequent diazotization of sulfonamide derivatives and coupling with 1-naphthol in alkaline medium. Cyclization of 4-((4-hydroxynaphthalen-1-yl)diazenyl)benzenesulfonamides with cinnamic acid in the presence of a basic catalyst afforded the novel naphtho[1,2-b]furans. Also, 4-((4-hydroxynaphthalen-1-yl)diazenyl)benzenesulfonamides can be cyclized with α‐cyanocinnamonitriles to afford 2-amino-3-cyano-4-phenyl-4H-benzo[h]chromenes. 4-(4-amino-3,5- dicyano-6-iminopyridazin-1(6H)-yl)benzenes

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18

Jha, Amitabh, Nawal K. Paul, Smriti Trikha, and T. Stanley Cameron. "Novel synthesis of 2-naphthol Mannich bases and their NMR behaviour." Canadian Journal of Chemistry 84, no. 6 (2006): 843–53. http://dx.doi.org/10.1139/v06-081.

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A novel two-step procedure involving the formation of 1-arylidene-2-tetralones from 2-tetralone and subsequent Michael addition of a cyclic secondary amine on the alkenone followed by in situ aerial oxidation was developed to produce 2-naphthol Mannich bases. A simple microwave-assisted one-pot synthesis of 2-naphthol Mannich bases was also carried out under solvent-free conditions from 2-naphthol and corresponding aldehydes and amines in the presence of p-toluenesulfonic acid. The compounds of this series displayed interesting NMR behaviour. Extensive variable-temperature NMR investigations,

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19

Kulkarni, Pramod. "Sulfanilic acid catalysed one‐pot three‐component Mannich reaction for synthesis of β‐amino ketones". Vietnam Journal of Chemistry 58, № 5 (2020): 675–87. http://dx.doi.org/10.1002/vjch.202000090.

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AbstractWe have reported sulfanilic acid as an exceedingly competent catalyst for one‐pot Mannich reaction to give β‐amino carbonyl compounds in good to excellent yield within a short reaction time. The various organic acids have screened; like gallic acid, 4‐hydroxy benzoic acid, 4‐amino benzoic acid, phenylacetic acid, chloroacetic acid, sulfosalicylic acid, sulfanilic acid, chloro benzoic acid, phthalic acid, salicylic acid, cinnamic acid, hippuric acid, 1‐naphthyl acetic acid, o‐amino benzoic acid, p‐TSA, succinic acid, malic acid, and among them sulfanilic acid is a suitable catalyst. The

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20

Hope, AB, та DB Matthews. "Adsorption of Amines to Thylakoid Surfaces and Estimations of ΔpH". Functional Plant Biology 12, № 1 (1985): 9. http://dx.doi.org/10.1071/pp9850009.

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The adsorption of the fluorescent, weak amine ΔpH indicators 9-aminoacridine and N-(1-naphthyl)ethylenediamine to thylakoids of pea chloroplasts in the dark was measured as a function of amine concentration, at several pH's between 8 and 5, and with varied MgCl2 concentration. It was concluded that it was the protonated form of the amine that was adsorbed. Maximum amounts adsorbed, saturation occurring at about 1 mM amine concentration in the presence of 5 mM KCl and 10 mM MgCl2, were up to 1 mol (mol Chl)-1. This was calculated as exceeding the number of available surface negative charges (0.

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21

Diener, Heinz, and Heinrich Zollinger. "Mechanism of azo coupling reactions. Part 34. Reactivity of five-membered ring heteroaromatic diazonium ions." Canadian Journal of Chemistry 64, no. 6 (1986): 1102–7. http://dx.doi.org/10.1139/v86-185.

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The azo coupling reactions of six five-membered ring heteroaromatic diazonium ions with 2-naphthol-3,6-disulfonic acid are investigated kinetically at various pH values. The dependence of the measured rate constants on the acidity of the aqueous reaction system is evaluated. It can be shown that the 2-naphtholate-3,6-disulfonate trianion reacts 4 × 108–8 × 108 times faster than the 2-naphthol-3,6-disulfonate dianion. The rate constants of the six diazonium ions vary by more than four orders of magnitude. The logarithms of the rate constants of all comparable diazonium ions correlate linearly w

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22

Mahon, Andrew B., Donald C. Craig, and Andrew C. Try. "1,1′-Methylenebis(naphthalen-2-amine) methanol solvate." Acta Crystallographica Section E Structure Reports Online 63, no. 11 (2007): o4341. http://dx.doi.org/10.1107/s1600536807050131.

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23

Yemashova, N., and S. Kalyuzhnyi. "Microbial conversion of selected azo dyes and their breakdown products." Water Science and Technology 53, no. 11 (2006): 163–71. http://dx.doi.org/10.2166/wst.2006.349.

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Four selected azo dyes (acid orange 6, acid orange 7, methyl orange and methyl red) were completely decolourised in the presence of anaerobic granular sludge, while only methyl red was degraded in aerobic conditions using a conventional activated sludge. Additional experiments with culture broth devoid of cells showed that anaerobic decolourisation of azo dyes was performed by extracellular reducing agents produced by anaerobic bacteria. This was further confirmed by abiotic experiments with sulphide and NADH. The presence of redox mediators such as riboflavin led to dramatic acceleration of t

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24

Woo, Jeongkyu, Soo Kyung Kang, Ju Hee Han, et al. "Red Phosphorescent Platinum(II) Complexes with Tetradentate Pyridine-Containing Ligands for Organic Light Emitting Diodes." Journal of Nanoscience and Nanotechnology 20, no. 11 (2020): 6669–74. http://dx.doi.org/10.1166/jnn.2020.18758.

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Here, red phosphorescent platinum(II) complexes based on tetradentate pyridine-containing lig-ands are studied. To investigate their electroluminescent properties, multilayer devices were fabricated in the following sequence; ITO (180 nm)/4,4′,4″-Tris[2-naphthyl(phenyl)amino]triphenylamine (2-TNATA) (30 nm)/N, N′-di(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl)4,4′-diamine (NPB) (20 nm)/ Tris(4-carbazoyl-9-ylphenyl)amine (TCTA) (10 nm)/4,4′-Bis(N-carbazolyl)-1,1′-biphenyl (CBP) (20 nm)/Platinum(II) complex (20 nm)/1,3,5-Tris(1-Phenyl-1H-benzimidazol-2-yl)benzene) (TPBi) (40 nm)/Liq (2 nm)/Al (100 n

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25

D., Das, Dinda J, K. Mondal T., K. Sarkcr K., and Sinha C. "Synthesis, structure and photoluminescence properties of zinc(II)-naphthyl-(2-pyridylmethylene)amines and comparison with zinc(II)-naphthylazoimidazoles." Journal of Indian Chemical Society Vol. 83, Sep 2006 (2006): 861–67. https://doi.org/10.5281/zenodo.5829751.

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Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata-700 032, India E-mail : c_r_sinha@yahoo.com <em>Manuscript received 18 May 2006, accepted 26 May 2006</em> Zinc(II) complexes of 1-alkyl-2-(naphthyl-α/β-azo)imidazoles (azoimine function, -N=N-C=N-) and α/β-naphthyl-(2- pyridylmethylene)amine (diimine function, -N=C-C=N-) are described in this article. The complexcs arc spcctroscopically characterized (IR, UV-Vls, NMR). The composition of the complex depends on the counter ions used; the reaction of ZnCl<sub>2</sub> with ligand gives tctrah

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26

KAWAKAMI, Jun, Toru ISOBE, Yohei SASAKI, Shunji ITO, Masahiko NAGAKI, and Haruo KITAHARA. "Poly(amide amine) Dendrimer with Naphthyl Units as a Fluorescent Chemosensor for Metal Ions." Analytical Sciences 21, no. 7 (2005): 729–30. http://dx.doi.org/10.2116/analsci.21.729.

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Kawakami, Jun, Yoshihiro Miyamoto, Toru Isobe, Masahiko Nagaki, and Shunji Ito. "Poly(amide amine) Dendrimers with Naphthyl Units as Fluorescent Chemosensor Materials for Metal Cations." Transactions of the Materials Research Society of Japan 35, no. 4 (2010): 849–52. http://dx.doi.org/10.14723/tmrsj.35.849.

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Osipov, D. V., A. A. Artyomenko, K. S. Korzhenko, D. A. Raschepkina, O. P. Demidov та V. A. Osyanin. "Reactions of β-nitro-substituted 1<i>H</i>-benzo[<i>f</i>]chromenes and benzofurans with nucleophiles". Журнал органической химии 59, № 3 (2023): 382–99. http://dx.doi.org/10.31857/s0514749223030102.

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A series of 3-alkoxy-2-nitro-2,3-dihydro-1 H -benzo[ f ]chromenes as a mixture of cis - and trans -isomers was obtained in the reaction of 2-nitro-1 H -benzo[ f ]chromenes with alcohols. The reaction with secondary cyclic amines and 3-amino-5,5-dimethylcyclohex-2-en-1-one proceeds trans -diastereoselectively to form Michael adducts of benzochromane structure. Conjugated addition involving anilines leads to (2-hydroxy-1-naphthyl) methyl-substituted β-nitroenamines. The nucleophilic dearomatization of 3-nitrobenzofurans under the action of primary aromatic amines was shown to involve sequential

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29

Groves, Malcolm S., Kacie J. Nelson, Ryan C. Nelson, and Kana Takematsu. "pH switch for OH-photoacidity in 5-amino-2-naphthol and 8-amino-2-naphthol." Physical Chemistry Chemical Physics 20, no. 33 (2018): 21325–33. http://dx.doi.org/10.1039/c8cp03984d.

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30

Journal, Baghdad Science. "Synthesis and Characterization of Some New Azo Dyes Derivatives Via Chalcone and Study Some of Their Biological Activity." Baghdad Science Journal 13, no. 1 (2016): 122–32. http://dx.doi.org/10.21123/bsj.13.1.122-132.

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This work includes synthesis of new six membered heterocyclic rings with effective amino group using the reaction of benzylideneacetophenone (chalcone) (1) with thiourea or urea in alcoholic basic medium to form: 1,3-thiazen-2-amine (2), and 1,3-oxazin-2-amine (8) respectively. The diazotization reaction was carried out with sodium nitrite in presence of hydrochloric acid to form diazonium salts which suffered coupling reaction with naphthols and phenols in the presence of sodium hydroxide to form colored azo dyes (4-7, and 10-13). o-methylation reaction of compounds (7) and (10) yielded : 1,3

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31

Ukhin, L. Yu, L. G. Kuzmina, V. A. Podshibyakin, et al. "Synthesis of New Oxonine Series Macrolactones with Maphthopyrazine Fragments." Журнал общей химии 94, no. 1 (2024): 92–97. http://dx.doi.org/10.31857/s0044460x24010071.

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32

Jumde, Kiran P., Sanghapal S. Padhen, Saifuddin E. Quazi, Ruqquaiya Shaikh, and Saleem R. Khan. "Solvent Free Green Synthesis f 4-Substituted Thiocarbamido- Naphthols." Oriental Journal Of Chemistry 40, no. 2 (2024): 599–603. http://dx.doi.org/10.13005/ojc/400236.

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Recently in this laboratory we developed new solvent free green synthetic methods for the synthesis of 4-phenylthiocarbamido-1-naphthol, 4-(p-chloro)phenylthiocarbamido-1-naphthol, 4-(o-methyl)phenylthiocarbamido-1-naphthol, 4-(p-methyl)phenylthiocarbamido-1-naphthol, and 4-(m-methyl)phenylthiocarbamido-1-naphthol by interacting 4-amino-1-naphthol with p-chlorophenylisothiocynate, p-tolylisothiocynate, o-tolylisothiocynate and m-tolylisothiocynate in presence of sweet lemon juice, lemon and orange juice respectively which are hither to unknown. Yet such attempts were not carried out by any res

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33

Shrivastava, Mukesh, G. Swarnabala, S. B. Khatavkar, G. S. Sadana та Anahita Bharadwaj. "Structural Investigations of Some Metal Complexes of Malon-Di-(α-Naphthyl) Amide-Oxime". Asian Journal of Chemical Sciences 14, № 6 (2024): 154–80. https://doi.org/10.9734/ajocs/2024/v14i6342.

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The study investigates the structural properties of Cu(II), Ni(II), Fe(II), Co(III), Zn(II), Cd(II), and Hg(II) complexes with malon-di-(α-naphthyl)amide-oxime (isonitroso malon-di-(α-naphthyl)amine oxime). It summarizes chemicals, equipment, experimental methods, metal-ligand bonding, stereochemistry, oxidation states, and coordination modes using spectral and magnetic data. Solution studies done with reagent and metal salts assisted in predicting geometry for these complexes, to finalize the M:L ratios and have allowed the pH to be established to separate the complex formed in solid state. T

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34

Yu, Jianning, Na Wei, Chong Li, et al. "Enhancement of Efficiency and Lifetime of Blue Organic Light-Emitting Diodes Using Two Dopants in Single Emitting Layer." Advances in Materials Science and Engineering 2012 (2012): 1–4. http://dx.doi.org/10.1155/2012/247976.

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We have demonstrated efficient blue organic light-emitting diode with the structure of indium tin oxide/4,4′,4″-tris(N-(2-naphthyl)-N-phenyl-amino)triphenylamine/1,4-bis[N-(1-naphthyl)-N′-phenylamino]-4,4′-diamine/9,10-di(2-naphthyl)anthracene (ADN): 1-4-di-[4-(N,N-di-phenyl)amino]styryl-benzene (DSA-ph) 3 wt%/tris-(8-hydroxyquinoline)aluminum/LiF/Al. Improved efficiencies and longer operational lifetime were obtained by codoping a styrylamine-based dopant BD-3 (0.1 wt%) into the emitting layer of ADN doped with DSA-ph compared to the case of non-codoping. This was due to the improved charge b

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35

Swarnkar, Pawan Kumar, P. Kriplani, G. N. Gupta, and K. G. Ojha. "Synthesis and Antibacterial Activity of Some New Phenothiazine Derivatives." E-Journal of Chemistry 4, no. 1 (2007): 14–20. http://dx.doi.org/10.1155/2007/402673.

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A series of some new phenothiazine derivatives were synthesized with the objective for evaluation as antimicrobials. The title compounds were prepared by a five step synthesis scheme. 2-Amino-6-substituted benzothiazoles (1) on diazotization afford 6-substituted benzothiazolyl-2-diazonium chlorides (2). Reaction of 2 with cold solution ofβ-naphthol in dilute NaOH furnishesα-(2-diazo-6-substituted benzothiazolyl)-β-sodionaphthoxides (3) which on acidification with concentrated HCl givesα-(2-diazo-6-substituted benzothiazolyl)-β-naphthols (4). Reaction of 4 with p-substituted anilines givesα-(2-

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36

Pál, Dávid, Martin Gede, Ildikó Móczár, Péter Baranyai, Péter Bagi, and Péter Huszthy. "Synthesis and Complexation Studies of Optically Active Aza- and Diazacrown Ethers Containing a Pyrene Fluorophore Unit." Periodica Polytechnica Chemical Engineering 64, no. 1 (2019): 20–36. http://dx.doi.org/10.3311/ppch.14467.

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Novel enantiopure azacrown [(R,R)-1 and (S,S)-1] and diazacrown [(R,R)-2–(R,R)-4 and (S,S)-2–(S,S)-4] ethers containing a pyrene fluorophore unit and two phenyl groups at their chiral centers were obtained in multistep syntheses. The action of these chemosensors is based on the photoinduced electron transfer (PET) process, thus they show fluorescence enhancement in the presence of protonated primary amines and amino acid esters. Their recognition abilities toward the enantiomers of 1-phenylethylamine hydrogen perchlorate (PEA), 1-(1-naphthyl) ethylamine hydrogen perchlorate (NEA), phenylglycin

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37

Li, Fangping, Jun Zhang, Longjiang Wang, Weijian Liu, and Qahtan A. Yousif. "Solvent-free synthesis of 1-amidoalkyl-2-naphthol and 3-amino-1-phenyl-1H benzo[f]chromene-2-carbonitrile derivatives by Fe3O4@enamine-B(OSO3H)2 as an efficient and novel heterogeneous magnetic nanostructure catalyst." Polish Journal of Chemical Technology 22, no. 2 (2020): 9–19. http://dx.doi.org/10.2478/pjct-2020-0012.

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AbstractA green procedure for the one-pot three-component synthesis of 1-amidoalkyl-2-naphthol and 3-amino-1-phenyl-1H benzo[f]chromene-2-carbonitrile derivatives from the reaction of 2-naphtol, aldehydes, and malononitrile/acetamide in the presence of a catalytic amount of Fe3O4@enamine-B(OSO3H)2 as an efficient and novel heterogeneous magnetic nanostructure catalyst is described. The catalyst was characterized using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffr

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38

Adeppagari, Narayanamma Chinna, Nayana Kudluru Omkarappa, and Pandurangappa Malingappa. "Speciation Study of Nitrite/Nitrate through Diazo-Coupling Reaction Using Silica-Perchloric Acid as a Novel Catalyst at Trace Level: Application to Environmental Samples." Asian Journal of Chemistry 33, no. 4 (2021): 819–26. http://dx.doi.org/10.14233/ajchem.2021.23107.

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A simple, sensitive and rapid spectrophotometric method has been developed based on the diazo coupling reaction in the quantification of nitrite/nitrate at trace level using silica perchloric acid (SPCA) as an acid catalyst. 5-Amino-2-mercapto benzimidazole has been used as a novel amine and coupled with N-(1-naphthyl)ethylenediamine dihydrochloride (NEDA) to produce an intense coloured azo dye. The proposed method showed wide linearity in the concentration range 0.1-1000 ppm of nitrite. The molar absorptivity and Sandell′s sensitivity were found to be 1.6 × 106 L mol–1 cm–1 and 0.0012 μg cm–2

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39

Czapik, Agnieszka, Arkadiusz Nitka, and Maria Gdaniec. "5-Amino-1-naphthol." Acta Crystallographica Section E Structure Reports Online 65, no. 11 (2009): o2964. http://dx.doi.org/10.1107/s1600536809045152.

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40

Dash, Tsezengijn, Tomislav Barth, Jiřina Slaninová, et al. "Isolation and partial characterization of a peptidase with trypsin-like activity from bovine adenohypophysis." Collection of Czechoslovak Chemical Communications 54, no. 8 (1989): 2276–86. http://dx.doi.org/10.1135/cccc19892276.

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A reproducible method has been developed for the isolation of the adenohypophyseal enzyme with a trypsin-like activity. The enzyme is able to hydrolyze Nα-benzoyl-L-arginine-p-nitroanilide, a fluorogenic substrate CBzl-Arg-Arg-β-naphthyl amide and some peptides with one or two accumulated basic amino acids in the chain. The optimum pH for hydrolysis of the chromogenic substrate was within the range 6.0-7.0 (Km = 0.66 mmol l-1), in the case of the fluorogenic substrate the range was between 7.0 and 7.5 (Km = 1.2 μmol l-1). The enzyme is activated by cysteine and dithiothreitol and inhibited by

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41

Ito, Ken-ichi, Yoshitaka Shigeru, Yu-uichi Kawata, Katsuhiko Ito, and Masahiro Tsunooka. "Photo-initiated and thermal curing of epoxides by the use of photo-base generators bearing acyloxyimino groups." Canadian Journal of Chemistry 73, no. 11 (1995): 1924–32. http://dx.doi.org/10.1139/v95-237.

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The formation of amines by the photolysis of O-acyloximes derived from acetophenone oxime, benzophenone oxime, fluorenone oxime, and 2-acetonaphthone oxime and the curing of epoxides by the resulting amines were investigated. The quantum yields of their photolysis at 366 nm in polystyrene films depend on their structures, and those for bifunctional ones bearing phenyl or naphthyl moieties were found to be very high, at 0.88 and 0.76, respectively. The yields of the resulting amines in polymer matrices were higher than those in solution. The yields for O-acyloximes bearing a naphthyl moiety wer

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42

Sabina, Jhaumeer-Laulloo, G. Bhowon Minu, and Hosany Amit. "Synthesis, catalytic and antibacterial activity of ruthenium complexes of 2,2' -dithiobis[N -(2-hydroxy -naphth-3-yl)benzamides]." Journal of India Chemical Society Vol 81, Jul 2004 (2004): 547–51. https://doi.org/10.5281/zenodo.5830472.

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Department of Chemistry. Faculty of Science. University of Mauritius, Reduit, Mauritius <em>E-mail</em> : sabina@uom.ac.mu <em>Manuscript received 22 September 2003. received 18 February 2004. accepted 18 February 2004</em> Reaction of 2,2'-dithiobis[<em>N</em>-2-hydroxy-naphth-3-yl)benzamides] (1) with RuCl<sub>3</sub>3H<sub>2</sub>O, followed by addition of secondary ligands (L = triphenylphosphine (PPh<sub>3</sub>), 1,10-phenanthroline (Phen), pyridine (Py), 2,4-diaminotolucne (Diam)), yielded five binuclear metal complexes (1a-e). All the compounds were chracterised through e

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43

Skrzypek, Alicja, Monika Karpińska, Małgorzata Juszczak, et al. "Cholinesterases Inhibition, Anticancer and Antioxidant Activity of Novel Benzoxazole and Naphthoxazole Analogs." Molecules 27, no. 23 (2022): 8511. http://dx.doi.org/10.3390/molecules27238511.

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Benzoxazole and naphthoxazole fused systems are found in many biologically active molecules. Novel benzoxazole and naphthoxazole analogs functionalized by the 2,4-dihydroxyphenyl moiety were designed, obtained and evaluated as a broad spectrum of biological potency compounds. Sulfinylbis[(2,4-dihydroxyphenyl)methanethione] or its analogs and 2-aminophenols or 1-amino-2-naphthol were used as starting reagents. 4-(Naphtho[1,2-d][1,3]oxazol-2-yl)benzene-1,3-diol was identified as the most promising compound of the nanomolar activity against AChE (IC50 = 58 nM) of the mixed-type inhibition and of

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44

Mehdipour-Ataei, Shahram, and Ahmad Amirshaghaghi. "Novel poly(amide–imide)s from 2,6-bis(5-amino-1-naphthoxy) pyridine." European Polymer Journal 40, no. 3 (2004): 503–7. http://dx.doi.org/10.1016/j.eurpolymj.2003.10.024.

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45

El-Maghraby, Awatef Mohamed. "Green Chemistry: New Synthesis of Substituted Chromenes and Benzochromenes via Three-Component Reaction Utilizing Rochelle Salt as Novel Green Catalyst." Organic Chemistry International 2014 (January 30, 2014): 1–6. http://dx.doi.org/10.1155/2014/715091.

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Substituted 2-amino-4-aryl-7-hydroxy-4H-chromene-3-carbonitriles (6), 2-amino-4-aryl-4H-benzo[h]chromene-3-carbonitriles (7), and 3-amino-1-aryl-1H-benzo[f]chromenes-2-carbonitriles (8) were prepared, in good yields, via one-pot three-component reactions of aromatic aldehydes (1), malononitrile (2), and resorcinol (3) or α-naphthol (4) or β-naphthol (5) in refluxing ethanol or water in the presence of Rochelle salt as novel green heterogeneous and reusable catalyst.

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46

Doitomi, Kazuki, Kai Xu, and Hajime Hirao. "The mechanism of an asymmetric ring-opening reaction of epoxide with amine catalyzed by a metal–organic framework: insights from combined quantum mechanics and molecular mechanics calculations." Dalton Transactions 46, no. 11 (2017): 3470–81. http://dx.doi.org/10.1039/c6dt04745a.

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47

Albert, Joan, Ramon Bosque, Margarita Crespo, et al. "Neutral and ionic platinum compounds containing a cyclometallated chiral primary amine: synthesis, antitumor activity, DNA interaction and topoisomerase I–cathepsin B inhibition." Dalton Transactions 44, no. 30 (2015): 13602–14. http://dx.doi.org/10.1039/c5dt01713k.

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48

Pace, Christopher M., Joseph R. Donnelly, Jeffrey L. Jeter, William C. Brumley, and G. Wayne Sovocool. "Determination of Aromatic Amines in Soils." Journal of AOAC INTERNATIONAL 79, no. 3 (1996): 777–83. http://dx.doi.org/10.1093/jaoac/79.3.777.

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Abstract A rapid liquid chromatographic (LC) method with ultraviolet (UV) or fluorescence detection was developed for parts-per-billion levels of aromatic amines in soils. 2,4-Diaminotoluene, pyridine, aniline, 2-pi-coline, 2-toluidine, 5-nitro-2-toluidine, 2-methyl-6-ethylaniline, 4-aminobiphenyl, 4-nitroaniline, 1-naphthyl-amine, 2-methoxyaniline, and 2-naphthyiamine were tested. The method involves extraction by sonication with 1% ammonium hydroxide–acetonitrile and analysis by LC using gradient elution with aqueous 0.01 M ammonium acetate–0.0005% triethylamine and acetonitrile. Recoveries

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49

Abu-Surrah, Adnan S., Hamzeh M. Abdel-Halim, and Feda’a M. Al-Qaisi. "Synthesis of Cobalt(III), Iron(III), and Chromium(III) Complexes with Salicylaldiminato Ligands: Evaluation of the Complexes as Catalysts for Oxidation of L-Cysteine." Zeitschrift für Naturforschung B 63, no. 7 (2008): 848–52. http://dx.doi.org/10.1515/znb-2008-0707.

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A series of new cobalt(III)-, iron(III)-, and chromium(III)-based complexes of the general formula [M(N∩O)2Cl] (N∩O: N-salicylidene(X)amine and sodium N-(4-sulfonatosalicylidene(X)amine)) (X = cyclohexyl and 1-naphthyl) was prepared and characterized. Some of the isolated complexes have been evaluated as catalysts for the oxidation of L-cysteine. Preliminary results show that the rate of oxidation of L-cysteine is influenced by the nature of the metal center, the geometry of the complex, the auxiliary substituents, and the backbone of the ligand.

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50

Best, WM, BC Mortimer, TG Redgrave, and RV Stick. "The Synthesis of a Fluorescent Cholesteryl Oleate Analogue." Australian Journal of Chemistry 49, no. 11 (1996): 1243. http://dx.doi.org/10.1071/ch9961243.

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A fluorescent analogue of cholesteryl oleate , namely 22-[ethyl(2'-naphthyl)amino]-23,24-dinorchol-5-en-3β-yl oleate, has been prepared from a steroidal carboxylic acid, 2-naphthylamine and oleic acid.

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