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Journal articles on the topic 'Benzyl bromide'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Hu, Jinbo, Cuiwen Kuang, Chuanfa Ni, and Yucheng Gu. "Photoredox-Catalyzed Ring-Opening Addition Reaction between Benzyl Bromides and Cyclic Ethers." Synthesis 54, no. 05 (2021): 1272–86. http://dx.doi.org/10.1055/a-1671-6856.

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AbstractA novel nucleophilic reaction between cyclic ethers and benzyl bromides is achieved under photoredox catalysis. The reaction proceeds through a single-electron-transfer (SET) pathway rather than a common SN2 mechanism. By two steps of reduction and oxidation, a benzyl bromide heterolyzes to give a carbocation and bromide ion under mild conditions, and then a cyclic ether captures both the carbocation and bromide ion to afford the addition product.

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2

Bijudas, K., and P. Bashpa. "Selective Oxidation of Benzyl Halides to Benzaldehydes by Phase Transfer Catalyzed Monochromate Ions in Non-Polar Solvents." Asian Journal of Organic & Medicinal Chemistry 5, no. 3 (2020): 249–53. http://dx.doi.org/10.14233/ajomc.2020.ajomc-p287.

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Benzyl chloride, benzyl bromide and their para substituted derivatives were selectively oxidized to corresponding benzaldehydes by acidified monochromate in toluene and ethyl acetate with the help of phase transfer catalysts like tetrabutylphosphonium bromide (TBPB), tetrabutylammonium bromide (TBAB), tetrabutylammonium hydrogen sulphate (TBAHS), cetyltrimethylammonium bromide (CTMAB) and tricaprylmethylammonium chloride (TCMC). The reaction was carried out by simple magnetic stirring for about 2 h at 60 ºC. The products were recrystallized and analyzed by infrared and UV-visible spectral tech

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3

Bashpa, P., and K. Bijudas. "Green synthesis of benzaldehydes by the selective oxidation o benzyl alcohols using hexacyanoferrate (III) and bromate under phase transfer catalysis." Research Journal of Chemistry and Environment 26, no. 1 (2021): 28–33. http://dx.doi.org/10.25303/2601rjce2833.

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The selective oxidation of benzyl alcohols and substituted benzyl alcohols was carried out in greener solvents like ethyl acetate and toluene by hexacyanoferrate (III) and bromate ions under phase transfer catalysis. Various phase transfer catalysts like tetrabutylphosphonium bromide, tetrabutylammonium bromide, tetrabutylammonium hydrogen sulphate, cetyltrimethylammonium bromide and tricaprylmethylmmonium chloride were used. A pinch of sodium tungstate dihydrate is added as a co-catalyst when bromate is used an oxidant and hexacyanoferrate (III) is used in presence of mineral acids. The produ

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4

Ledvina, Miroslav, Jiří Farkaš, Jaroslav Zajíček, Jan Ježek та Milan Zaoral. "An alternative synthesis of O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-(1→4)-N-acetylnormuramoyl-L-α-aminobutanoyl-D-isoglutamine". Collection of Czechoslovak Chemical Communications 54, № 10 (1989): 2784–94. http://dx.doi.org/10.1135/cccc19892784.

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Silver triflate-promoted condensation of 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl bromide (VIII) with benzyl 2-acetamido-6-O-benzoyl-2-deoxy-3-O-(methoxycarbonyl)-methyl-α-D-glucopyranoside (IV) afforded benzyl 2-acetamido-4-O-(3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-6-O-benzoyl-2-deoxy-3-O-(methoxycarbonyl)methyl-α-D-glucopyranoside (IX) which, after deprotection, was converted into the acid XI. Condensation of acid XI with L-α-aminobutanoyl-D-isoglutamine benzyl ester and subsequent hydrogenolysis of the product XIII furnished compound XIV. Benzyl 2-ac

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5

Borisova, Yulianna G., Rimma M. Sultanova, and Simon S. Zlotsky. "SYNTHESIS AND BIOLOGICAL ACTIVITY OF AMMONIUM SALTS CONTAINING CYCLOACETAL FRAGMENT." ChemChemTech 68, no. 2 (2024): 46–51. https://doi.org/10.6060/ivkkt.20256802.7127.

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Interaction of consecutive chain amines (pyridine, 2-methyl-pyridine, 4-vinyl-pyridine, 4-(1,3-dioxolan-2-yl)pyridine) with bromo derivatives (allyl bromide, benzyl and 2-β-bromoethyl-1 ) ,3-dioxolane), new quaternary ammonium salts were synthesized under thermal conditions containing allylic (1-allylpyridinium-, 1-allyl-4-vinylpyridinium- and 1-allyl-4-(1,3-dioxolan-2-yl) pyridinium bromides), benzyl (1-benzyl-4-vinylpyridinium-, 1-benzyl-4-(1,3-dioxolan-2-yl)pyridinium bromides) or 1,3-dioxolanoate (1-[2-(1 ,3-) dioxolan-2-yl)ethyl]pyridinium-, 1-[2-(1,3-dioxan-2-yl)ethyl]-2-methylpyridinium

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6

Ball, Joanne M., P. Michael Boorman та Kelly J. Moynihan. "Reactions of confacial bioctahedral ditungsten(III) species: Product distribution in reactions of the μ-hydrido-(bis-μ-dimethylsulfide)bis (trichlorotungstate(III)) ion, and trichlorotungsten(III)(μ-hydrido)bis((μ-dimethylsulfide)(dimethylsulfide)-dichlorotungsten(III) with benzyl bromide and bromide ion". Canadian Journal of Chemistry 68, № 5 (1990): 685–90. http://dx.doi.org/10.1139/v90-105.

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Reactions of compound Cl3W(μ-H)(μ-Me2S)2WCl2(Me2S), 1, and salts of derived chloro anion [Cl3W(μ-H)(μ-Me2S)2WCl3]−, 2, with bromide ion and with benzyl bromide are described. 1 was previously shown (1) to exist as a mixture of meso (C2v) and DL-pair (C1) of isomers, with the C2v isomer being the more stable. Displacement of the terminal dimethyl sulfide ligand of 1 by bromide ion results in the formation of the analogous isomers of ion [Cl3W(μ-H)(μ-Me2S)2WCl2Br]−, with retention of stereochemistry. The 1H NMR spectra of compounds in this series are uniquely informative as to the isomers presen

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7

Liu, Min, Meng-Tian Zeng, Wan Xu, et al. "NaH-Promoted Transformation of Arylthioureas to Aryl-Isothioureas by S-Allylation and S-Benzylation Reactions." Journal of Chemical Research 41, no. 3 (2017): 165–67. http://dx.doi.org/10.3184/174751917x14878812592733.

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A series of 16 substituted aryl-isothioureas were prepared in excellent yields (80–97%) by reacting substituted arylthioureas with allyl bromide or substituted benzyl bromides in the presence of NaH in DMSO at room temperature. The substituent variations on the benzyl reactants had a larger effect on the yields than substituent variations on the allyl reactants. The method provides a facile and convenient preparation of some potentially biologically active compounds.

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8

Rufa'i, S. A., H. U. Yaqub, and M. B. Ibrahim. "A Solventless Process for the Synthesis of Imidazolium-Based Ionic Liquids." Bayero Journal of Pure and Applied Sciences 14, no. 2 (2022): 71–76. http://dx.doi.org/10.4314/bajopas.v14i2.8.

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Benzyl imidazole (1a) was successfully synthesized from the N-alkylation of imidazole with benzyl bromide. The product (1-benzylimidazole) was further alkylated using neat butyl bromide to yield an imidazolium ionic liquid, (1-Benzyl-3-butylimidazoliumbromide (2a)). Similarly, 1-methylimidazole (1b) was reacted with benzyl bromide to yield 1-Methyl-3-butylimidazolium bromide (2b). The synthesized compounds were characterized by spectroscopic techniques and elemental compositions were established on the basis of C, H, N elemental analyses. Proton NMR of both ionic liquids 2a and 2b reveals the

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9

Ghosh, Shyamali, William A. Kinney, Diane A. Gauthier, Edward C. Lawson, Tomas Hudlicky, and Bruce E. Maryanoff. "Convenient preparation of aryl-substituted nortropanes by SuzukiMiyaura methodology." Canadian Journal of Chemistry 84, no. 4 (2006): 555–60. http://dx.doi.org/10.1139/v06-045.

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The synthesis of a new bicyclic vinyl boronate (5) was accomplished from N-Boc-nortropinone (6) in two steps. The SuzukiMiyaura coupling of 5 to a variety of aryl bromides and triflates afforded 3-aryl-8-azabicyclo[3.2.1]oct-2-enes in good yields by adjusting the substrate and (or) reaction conditions. Reduction to the 3-aryl-8-azabicyclo[3.2.1]octanes was achieved by hydrogenation. Interestingly, the coupling was also successful with benzyl bromides, providing entry into another group of intermediates.Key words: nortropane, SuzukiMiyaura, boronate, piperidine, GPCR, benzyl bromide.

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10

Hanselová, Mária, Renáta Gašparová, and Margita Lácová. "Synthesis and plant growth activity of 2-(4-oxochromen-3-yl)benzothiazolium and -benzoxazolium bromides." Nova Biotechnologica et Chimica 8, no. 1 (2021): 79–86. http://dx.doi.org/10.36547/nbc.1311.

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A facile synthesis of novel 2-(4-oxochromen-3-yl) benzothiazolium bromides 4 and benzoxazolium bromide 5 using the one-pot condensation of substituted 4-oxochromene-3-carboxaldehydes 1 with 2-methylbenzothiazole (2a) or 2-methylbenzoxazole (2b) and benzyl bromide is described. The effects of benzothiazolium bromides 4 on the growth stimulation of the cucumber and retardant activity on corn seedlings were investigated. They inhibited growth of cucumber (root and hypocotyl) and shoots of corn at the range of 10 – 100 ppm and stimulated at 0.1 – 1 ppm concentrations.

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11

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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12

A. Raheem, Amro, and Mehdi S. Shihab. "Synthesis and Study Behavior of Some New Pyridinium Salts as Corrosion Inhibitors for Mild Steel in 1M H2SO4." Al-Nahrain Journal of Science 25, no. 4 (2022): 21–31. http://dx.doi.org/10.22401/anjs.25.4.04.

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Some new pyridinium bromide derivatives inhibitors, namely;1-benzyl-4-{N-[(4-hydroxyphenyl) methylidene] hydrazinecarbonyl)pyridine-1-ium bromide, A1; 1-benzyl-4-{N-[(4-ethoxyphenyl)methylidene]hydrazine carbonyl}pyridine-1-ium bromide, A2; 1-benzyl-4-{N-[(4-propoxyphenyl) methylidene] hydrazinecarbo-nyl}pyridine-1-ium bromide, A3; were synthesized and studied as inhibitors corrosion for meld steel in 1M H2SO4solution at room temperature via loss of weight measure ementsfor 24 hours. The results showed that inhibition for all pyridineumbromide derivatives have high values with the high concent

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13

Guindon, Yvan, Yves Girard, Sylvie Berthiaume, Vida Gorys, René Lemieux, and Christiane Yoakim. "Dialkyl and diaryl boron halides: reductive opening of benzylidene acetals." Canadian Journal of Chemistry 68, no. 6 (1990): 897–902. http://dx.doi.org/10.1139/v90-141.

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Dimethylboron bromide or diphenylboron bromide can be used in combination with borane to achieve the regiocontrolled conversion of benzylidene acetals to their corresponding hydroxy benzyl ethers with moderate to high yields. Keywords: dimethylboron bromide, diphenylboron bromide, reductive opening, benzylidene, acetals.

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14

Zhu, Jian-Bo, Hao Chen, Lijia Wang, and Yong Tang. "Stereospecific synthesis of highly functionalized benzo[3.1.0]bicycloalkanes via multistep cascade reactions." Org. Chem. Front. 1, no. 8 (2014): 965–68. http://dx.doi.org/10.1039/c4qo00134f.

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15

Rosa, Pardo Ignacio, Dongxu Zhu, Villena Alejandro Cortés, et al. "The Dark Side of Lead-Free Metal Halide Nanocrystals: Substituent-Modulated Photocatalytic Activity in Benzyl Bromide Reduction." Dark Side of Lead-Free Metal Halide Nanocrystals: Substituent-Modulated Photocatalytic Activity in Benzyl Bromide Reduction 8, no. 6 (2023): 2789–98. https://doi.org/10.5281/zenodo.14622794.

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We illustrate here the high photocatalytic activity of sustainable lead-free metal halide nanocrystals (NCs), namely, Cs<sub>3</sub>Sb<sub>2</sub>Br<sub>9</sub> NCs, in the reduction of <em>p</em>-substituted benzyl bromides in the absence of a cocatalyst. The electronic properties of the benzyl bromide substituents and the substrate affinity to the NC surface determine the selectivity in C–C homocoupling under visible light irradiation. This photocatalyst can be reused for at least three cycles and preserves its good performance with a turnover number of ca. 105,000.

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16

Petráková, Eva, Ivana Krupová, Jan Schraml, and Ján Hirsch. "Synthesis and 13C NMR spectra of disaccharides related to glucoxylans and xyloglucans." Collection of Czechoslovak Chemical Communications 56, no. 6 (1991): 1300–1308. http://dx.doi.org/10.1135/cccc19911300.

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β-(1 → 2), (1 → 3) and (1 → 4) linked D-glucopyranosyl-D-xylopyranoses were obtained in high yields via condensation of 2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide with the appropriate benzyl di-O-benzyl-β-D-xylopyranosides under conditions of modified Koenigs-Knorr reaction and deprotection of the acetyl and benzyl groups. 4-O-β-D-Xylopyranosyl-D-glucopyranose was synthesized similarly starting from 2,3,4-tri-O-acetyl-α-D-xylopyranosyl bromide and 1,2,3,6-tetra-O-acetyl-β-D-glucopyranose; it served as a xyloglucan model substance. The 13C NMR spectra of final disaccharides and their int

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17

Bella, Maroš, Bohumil Steiner, Vratislav Langer, and Miroslav Koóš. "Reaction of selected carbohydrate aldehydes with benzylmagnesium halides: benzyl versus o-tolyl rearrangement." Beilstein Journal of Organic Chemistry 10 (August 20, 2014): 1942–50. http://dx.doi.org/10.3762/bjoc.10.202.

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The Grignard reaction of 2,3-O-isopropylidene-α-D-lyxo-pentodialdo-1,4-furanoside and benzylmagnesium chloride (or bromide) afforded a non-separable mixture of diastereomeric benzyl carbinols and diastereomeric o-tolyl carbinols. The latter resulted from an unexpected benzyl to o-tolyl rearrangement. The proportion of benzyl versus o-tolyl derivatives depended on the reaction conditions. Benzylmagnesium chloride afforded predominantly o-tolyl carbinols while the application of benzylmagnesium bromide led preferably to the o-tolyl carbinols only when used in excess or at higher temperatures. Th

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18

Odžak, Renata, Ivan Halasz, Srđanka Tomić, and Dubravka Matković Čalogović. "N-Benzyl-4-(hydroxyiminomethyl)pyridinium bromide." Acta Crystallographica Section E Structure Reports Online 62, no. 6 (2006): o2423—o2424. http://dx.doi.org/10.1107/s1600536806018356.

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19

Nazir, Saba, M. Khawar Rauf, Masahiro Ebihara, and Shahid Hameed. "[4-(Methoxycarbonyl)benzyl]triphenylphosphonium bromide hemihydrate." Acta Crystallographica Section E Structure Reports Online 64, no. 2 (2008): o423. http://dx.doi.org/10.1107/s1600536808000184.

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20

Sustmann, Reiner, and Gebhard Kopp. "Reactions of vanadocene with benzyl bromide." Journal of Organometallic Chemistry 347, no. 3 (1988): 313–23. http://dx.doi.org/10.1016/0022-328x(88)80155-4.

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21

Lee, Ho Huat, Jose A. B. Baptista, and Jiri J. Krepinsky. "Syntheses of model oligosaccharides of biological significance. XI. A short synthesis of fucosylated chitobiosides, also bound to asparagine in a synthon (as in N-linked glycoproteins)." Canadian Journal of Chemistry 68, no. 6 (1990): 953–57. http://dx.doi.org/10.1139/v90-148.

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We describe a simple and efficient method for the preparation of the trisaccharide GlcNAc(β1-4)-[Fuc(α 1-6)-]GlcNAc(β 1-) (1) and of the protected form of GlcNAc(β 1-4)-[Fuc(α 1-6)-]GlcNAc(β1-Asn) (2). The key intermediate is benzyl 4,6-benzylidene chitobioside 5 giving the desired trisaccharide by insitu anomerization–glycosylation reaction with 2,3,4-tribenzylfucosyl bromide. The benzyl glycoside in the trisaccharide 6 has been replaced by acetate and then bromine; this glycosylating agent was used to prepare methyl and 8-methoxycarbonyloctyl glycosides as well as isothiocyanate 12, in a ser

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22

Atiur, Ahmed. "One-pot synthesis of chromenes by Suzuki-Miyaura cross-coupling reactions with benzyl bromides." Journal Of Indian Chemical Society Vol. 96, Nov 2019 (2019): 1429–32. https://doi.org/10.5281/zenodo.5642106.

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Memari College, Memari-713 146, Purba Bardhaman, West Bengal, India <em>E-mail</em>: atiur.chem@gmail.com <em>Manuscript received online 27 September 2019, accepted 01 October 2019</em> An efficient one-pot synthesis of chromenes has been developed from 2-bromocarbaldehydes through tandem benzyl bromide formation followed by Pd(0)-catalyzed Suzuki-Miyaura cross-coupling and substitution reaction.

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23

Schwartz, David A., Ho-Huat Lee, Jeremy P. Carver, and Jiri J. Krepinsky. "Syntheses of model oligosaccharides of biological significance. 4. Synthesis of a fucosylated N,N′-diacetylchitobioside and related oligosaccharides." Canadian Journal of Chemistry 63, no. 5 (1985): 1073–79. http://dx.doi.org/10.1139/v85-182.

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The synthesis of two trisaccharides and one disaccharide containing L-fucose and 2-acetamido-2-deoxy-D-glucose is reported. Methyl 3,6-di-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside was glycosylated with a 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl bromide. Removal of the phthalimido protecting groups by hydrazinolysis followed by N-acetylation and debenzylation yielded methyl N,N′-diacetylchitobioside 3′,4′,6′-triacetate. The latter was selectively fucosylated at the 6-position with 2,3,4-tri-O-benzyl-α-L-fucopyranosyl bromide to yield, after debenzylation and de-O-ace

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24

Barraza, Scott, and Scott Denmark. "Unexpected Rearrangement of 2-Bromoaniline under Biphasic Alkylation Conditions." Synlett 28, no. 20 (2017): 2891–95. http://dx.doi.org/10.1055/s-0036-1590882.

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Alkylation of 2-bromoaniline with benzyl bromide under ostensibly basic N-alkylation conditions resulted in migration of bromine from the 2- to the 4-aryl position. Herein we report our studies to elucidate the mechanism of this rearrangement with the objective of suppressing this unexpected outcome. We find that careful choice of reagents is critical, and that this behavior may be extrapolated to alkylation reactions of electron-rich bromo- and iodoanilines in general.

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25

Park, Kyoung-Ho, Chan Joo Rhu, Jin Burm Kyong, and Dennis N. Kevill. "The Effect of the ortho Nitro Group in the Solvolysis of Benzyl and Benzoyl Halides." International Journal of Molecular Sciences 20, no. 16 (2019): 4026. http://dx.doi.org/10.3390/ijms20164026.

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A kinetic study was carried out on the solvolysis of o-nitrobenzyl bromide (o-isomer, 1) and p-nitrobenzyl bromide (p-isomer, 3), and o-nitrobenzoyl chloride (o-isomer, 2) in a wide range of solvents under various temperatures. In all of the solvents without aqueous fluoroalcohol, the reactions of 1 were solvolyzed at a similar rate to those observed for 3, and the reaction rates of 2 were about ten times slower than those of the previously studied p-nitrobenzoyl chloride (p-isomer, 4). For solvolysis in aqueous fluoroalcohol, the reactivity of 2 was kinetically more reactive than 4. The l/m v

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26

Ledvina, Miroslav, Daniel Zyka, Jan Ježek, Tomáš Trnka та David Šaman. "New Effective Synthesis of (N-Acetyl- and N-Stearoyl-2-amino-2-deoxy-β-D-glucopyranosyl)-(1→4)-N-acetylnormuramoyl-L-2-aminobutanoyl-D-isoglutamine, Analogs of GMDP with Immunopotentiating Activity". Collection of Czechoslovak Chemical Communications 63, № 4 (1998): 577–89. http://dx.doi.org/10.1135/cccc19980577.

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Ethyl 3,4,6-tri-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside (5), prepared by benzylation of ethyl 2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside (4), was transformed by reaction with bromine into 3,4,6-tri-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl bromide (6). Thioglycoside 5 in the presence of methyl triflate and glycosylbromide 6 in the presence of silver triflate were used as glycosyl donors for condensation with benzyl 2-acetamido-3-O-allyl-6-O-benzyl-2-deoxy-α-D-glucopyranoside (7), to give benzyl 2-acetamido-3-O-allyl-6-O-benzyl-4-O-(3,4,6-tri-O-benzyl-2-deoxy-2-p

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27

Whitfield, Dennis M., Caroline J. Ruzicka, Jeremy P. Carver та Jiri J. Krepinsky. "Syntheses of model oligosaccharides of biological significance. 9. Syntheses of trideuteriomethyl di-3,6-O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-β-D-galactopyranoside: the I antigen branch-point trisaccharide and related disaccharides". Canadian Journal of Chemistry 65, № 4 (1987): 693–703. http://dx.doi.org/10.1139/v87-118.

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The title trisaccharide, 13c, was synthesized, as well as its two component disaccharides, 10c and 11c. Four disaccharides, 3c, 4c, 5c, and 7c, were also prepared to serve as model compounds for the investigation of the 3-dimensional structure of more complex oligosaccharides. The β-1,3 linkage was formed in 75% yield by coupling 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl bromide (9) with trideuteriomethyl 2-O-benzoyl-4,6-benzylidene-β-D-galactopyranoside (2a), using silver trifluoromethanesulphonate as a promoter in the presence of the base 2,6-di-tert-butyl-4-methylpyridine.

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28

Foroumadi, Parham, Vahid Lotfi, Mohammad Mahdavi, et al. "Copper-catalyzed synthesis of 2,3-disubstituted quinazolin-4(3H)-ones from benzyl-substituted anthranilamides." Heterocyclic Communications 24, no. 5 (2018): 267–71. http://dx.doi.org/10.1515/hc-2018-0051.

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Abstract An efficient, practical approach to the copper-catalyzed synthesis of 2,3-disubstituted quinazolin-4(3H)-one derivatives is described. The preparation involves treatment of benzyl amines with benzyl anthranilamides in the presence of Cu(OAc)2 and tetra-n-butylammonium bromide (TBAB).

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29

Jarallah, Aziz Latif, Khalid Fahad Ali, Raied Mustafa Shakir, and Shaimaa Abed Saoud. "Synthesis, Antibacterial and Antifungal Activities for Novel Derivatives of 2,2'-(((1-benzylbenzoimidazol-2-yl)methyl)azanediyl)bis(ethan-1-ol)." Ibn AL- Haitham Journal For Pure and Applied Science 32, no. 1 (2019): 56. http://dx.doi.org/10.30526/32.1.1966.

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The compound 2,2'-(((1H-benzo(d)imidazol-2-yl)methyl)azanediyl)bis(ethan-1-ol) was reacted with benzyl bromide to afford compound (1) which used as row material to prepare a series of compounds through condensation reaction, the starting compound were reacted with tosyl chloride to protect the OH group to afford compound 2, then reacted benzyl bromide to produce compound (2), then the compound (2) treated with three compounds ( 2-mercaptobenzthiazole, 2-mercaptobenimidazol and 2-chloromethyl benzimidazole) to form compounds 3a,b, 4a,b and 5a,b respectively. In the another step the click reacti

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30

Otruba, Vítězslav, Jan Pivnička, and Viktor Kanický. "Separation and Preconcentration of Cr(VI) as Ion Associate Using Solid Phase Extraction." Collection of Czechoslovak Chemical Communications 65, no. 12 (2000): 1865–74. http://dx.doi.org/10.1135/cccc20001865.

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A method of separation and preconcentration of Cr(VI) was developed based on sorption on modified silica gel (C18) of an ion associate of Cr(VI) anion with a quaternary base. The study was performed with the following quaternary onium salts: [1-(ethoxycarbonyl)- pentadecyl]trimethylammonium bromide, 1-hexadecylpyridinium chloride, benzyl(dodecyl)- dimethylammonium bromide, butyl(triphenyl)phosphonium bromide and tetraphenylarsonium chloride. Benzyl(dodecyl)dimethylammonium bromide was found the optimum ion-pairing reagent. Sample containing Cr(III) and Cr(VI) in the presence of 0.005 mol/l of

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31

Zelenka, Karel, Tomáš Trnka, Iva Tišlerová, Vladimír Král, Mykhaylo Dukh, and Pavel Drašar. "Synthesis of Porphyrin Receptors Modified by Glycosylated Steroids." Collection of Czechoslovak Chemical Communications 69, no. 5 (2004): 1149–60. http://dx.doi.org/10.1135/cccc20041149.

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5,10,15,20-Tetrakis-[3α-(2,3,4,6-tetra-O-benzyl-β-D-glucopyranosyl)-5β-cholan-24-yl]porphyrin and 5,10,15,20-tetrakis-[3α-(2,3,4,6-tetra-O-benzyl-β-D-galactopyranosyl)-5β-cholan-24-yl]porphyrin were synthesized by condenzation of the respective steroid aldehydes and pyrrole-1-yl magnesium bromide.

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32

Stibrany, Robert T., Joseph A. Potenza, and Harvey J. Schugar. "1-Benzyl-4,5-diphenyl-3-vinylimidazolium bromide." Acta Crystallographica Section E Structure Reports Online 58, no. 8 (2002): o848—o850. http://dx.doi.org/10.1107/s1600536802012291.

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33

Groux, L. F., F. Bélanger-Gariépy, and D. Zargarian. "Benzyl[3-(3-indenyl)propyl]ammonium bromide." Acta Crystallographica Section C Crystal Structure Communications 55, no. 10 (1999): IUC9900130. http://dx.doi.org/10.1107/s0108270199098637.

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34

Burke, Benjamin P., Peter Greenman, Adam M. Smith, and Stephen J. Archibald. "[4-(Bromomethyl)benzyl]triphenylphosphonium bromide acetonitrile monosolvate." Acta Crystallographica Section E Structure Reports Online 68, no. 11 (2012): o3202. http://dx.doi.org/10.1107/s1600536812042341.

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35

Patil, Umesh Keru, Bharat U. Sonawane, Balaji Madje, and S. R. Vaidya. "Tetra Butyl Ammonium Bromide Catalyzed Synthesis of Thiols and Thioethers." Journal of Advanced Scientific Research 15, no. 08 (2024): 14–17. http://dx.doi.org/10.55218/jasr.2024150803.

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A simple and commercially feasible route of synthesis of thiols and thioethers was developed using a simple phase transfer catalyst, i.e., Tetra Butyl Ammonium Bromide (TBAB). Sodium hydrogen sulfide (NaSH) is used as a sulfurization agent which is easily available and cost-effective. Thiols are obtained by treating alkyl or benzyl halides with sodium hydrogen sulfide (NaSH) in the presence of a phase transfer catalyst (TBAB) at 10 to 15℃. Thioethers are obtained by benzyl thiols treated with corresponding benzyl halides in the presence of a phase transfer catalyst (TBAB) at 10 to 15℃. Synthes

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36

Basu, Pradipta Kumar, and Amrita Ghosh. "Microwave-Assisted Improved Regioselective Synthesis of 12H-Benzopyrano[3,2-c][1]benzopyran-5-ones by Radical Cyclisation." Organic Chemistry International 2011 (September 15, 2011): 1–6. http://dx.doi.org/10.1155/2011/394619.

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Two new effective methodologies have been adopted for the preparation of 4-(2′-bromobenzyloxy)benzopyran-7-ones 3(a–h). In the first methodology, 4-hydroxy[1]benzopyran-2-ones 1(a–d) was alkylated with 2-bromobenzyl bromide 2a or 2-bromo-5-methoxy benzyl bromide 2b under phase transfer catalysis condition using lithium hydroxide/tetrabutyl ammonium bromide in N,N-dimethylformamide at 40–50°C and in the second method the microwave irradiation protocol has been exploited by simply mixing of 4-hydroxy[1]benzopyran-2-ones 1(a–d) with 25% excess of 2-bromobenzyl bromide 2a or 2-bromo-5-methoxy benz

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37

Idham Darussalam Mardjan, Muhammad, Dhina Fitriastuti, Bambang Purwono, and Jumina Jumina. "Synthesis of 1-(2-Methoxybenzyl)-1,10-phenanthrolin-1-ium Bromide from Gandapura Oil." Journal of Pure and Applied Chemistry Research 8, no. 3 (2019): 239–44. http://dx.doi.org/10.21776/ub.jpacr.2019.008.03.484.

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This study describes simple synthetic method to prepare 1-(2-methoxybenzyl)-1,10-phenanthrolin-1-ium bromide from gandapura oil. The salt were synthesized in four steps. Initially, commercial gandapura oil was directly subjected to the alkylation reaction under basic condition using dimethyl sulfate to give methyl 2-methxybenzoate in 86% yield. Next, the produced benzoate ester was reduced by LiAlH4 to produce 2-methoxybenzyl alcohol in 67% yield. The treatment of benzyl alcohol with phosphorus tribromide under solvent free condition produced the corresponding benzyl bromide (in 67% yield), wh

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38

K., C. Gupta, Gupta Vandana, K. Gupta A. та ін. "A route for synthesis of 1,3,5-trisubstituted naphthalenes by reaction of ortho-substituted benzylisoquinilium bromides with α,β-unsaturated ketones". Journal of Indian Chemical Society Vol. 89, Feb 2012 (2012): 291–94. https://doi.org/10.5281/zenodo.5759641.

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Department of Chemistry, D. V. P. G. College, Orai-285 001, Uttar Pradesh, India <em>E-mail</em> : guptakcdvc@rediffmail.com Department of Applied Chemistry, BIET, Jhansi, Uttar Pradesh, India <em>Manuscript received 10 August 2010, revised 02 March 2011, accepted 20 June 2011</em> Three <em>ortho</em>-substituted cycloimmonium bromides : <em>ortho</em>-chlorobenzylisoquinolium bromide, <em>ortho</em>-bromobenzylisoquinolium bromide and <em>ortho</em>-nitrobenzylisoquinolium bromide have been prepared by the reaction of <em>ortho</em>-substituted benzyl bromide with isoquinoline in benzene in

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39

Mallick, Apabrita, and Soumyajit Roy. "Visible light driven catalytic gold decorated soft-oxometalate (SOM) based nanomotors for organic pollutant remediation." Nanoscale 10, no. 26 (2018): 12713–22. http://dx.doi.org/10.1039/c8nr03534b.

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40

Bhowmick, Anindita, Prakash K. Warghude, Pankaj D. Dharpure та Ramakrishna G. Bhat. "Direct access to α-acyloxycarbonyl compounds and esters via oxidative esterification of aldehydes under visible light". Organic Chemistry Frontiers 8, № 17 (2021): 4777–84. http://dx.doi.org/10.1039/d1qo00731a.

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41

Al–Douh, Mohammed Hadi, Shafida Abd Hamid, and Hasnah Osman. "1D AND 2D NMR STUDIES OF BENZYL O–VANILLIN." Indonesian Journal of Chemistry 8, no. 3 (2010): 411–17. http://dx.doi.org/10.22146/ijc.21598.

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The reaction of o-vanillin A with benzyl bromide B2 in acetone as the solvent and K2CO3 as a base in the presence of tetra-n-butylammonium iodide (TBAI) as catalyst formed benzyl o-vanillin, C. The complete assignments of C using PROTON, APT, DEPT-135, COSY, NOESY, HMQC and HMBC NMR in both CDCl3 and acetone-d6 are discussed, and the coupling constants J are reported in Hertz (Hz). Keywords: 1H NMR; 13C NMR; 2D NMR; Benzyl o-Vanillin

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42

Migahed, M. A., E. G. Zaki, and M. M. Shaban. "Corrosion control in the tubing steel of oil wells during matrix acidizing operations." RSC Advances 6, no. 75 (2016): 71384–96. http://dx.doi.org/10.1039/c6ra12835a.

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43

Fitriastuti, Dhina, Muhammad Idham Darussalam Mardjan, Jumina Jumina, and Mustofa Mustofa. "Synthesis and Heme Polymerization Inhibitory Activity (HPIA) Assay of Antiplasmodium of (1)-N-(3,4-Dimethoxybenzyl)-1,10-Phenanthrolinium Bromide from Vanillin." Indonesian Journal of Chemistry 14, no. 1 (2014): 1–6. http://dx.doi.org/10.22146/ijc.21260.

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The synthesis of (1)-N-(3,4-dimethoxy-benzyl)-1,10-phenanthrolinium bromide had been conducted from vanillin. Heme polymerization inhibitory activity assay of the synthesized antiplasmodium has also been carried out. The first step of reaction was methylation of vanillin using dimethylsulfate and NaOH. The mixture was refluxed for 2 h to yield veratraldehyde in the form of light yellow solid (79% yield). Methylation product was reduced using sodium borohydride (NaBH4) with grinding method and yielded veratryl alcohol in the form of yellow liquid (98% yield). Veratryl alcohol was brominated usi

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44

Legaspi, Kristine, Jonathan Soto, Tianhua Tang, Matthew Sigman, Shelley Minteer, and Diane Smith. "A Voltammetric Investigation of the Electrocatalytic Cycle Mechanism of Fe(I) and Mn(I) Complexes." ECS Meeting Abstracts MA2023-01, no. 44 (2023): 2414. http://dx.doi.org/10.1149/ma2023-01442414mtgabs.

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Earth-abundant, first row, low coordinate transition metal complexes are promising candidates for the electrocatalysis of a variety of organic synthesis reactions. However, transition metal complexes in the M(I) state have the propensity to undergo disproportionation, hindering their ability to carry out the electrocatalytic cycle. In this study, we seek to identify and understand the mechanism by which the M(I) complexes may act as an electrocatalyst for a simple organic coupling reaction, beginning with the radicalization of benzyl bromide as a representative starting material. Initial chara

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Zheng, Xiaolin, Zhenzhen Xu, Haiyang Li, and Hongbing Fu. "A sensitive probe for amyloid fibril detection with strong fluorescence and early response." RSC Advances 8, no. 29 (2018): 15870–75. http://dx.doi.org/10.1039/c8ra00751a.

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46

Liu, Dan, Chengwei Qiu, Minbo Li, et al. "One-step green conversion of benzyl bromide to aldehydes on NaOH-modified g-C3N4 with dioxygen under LED visible light." Catalysis Science & Technology 9, no. 12 (2019): 3270–78. http://dx.doi.org/10.1039/c9cy00481e.

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47

Bernard, Angela M., Maria G. Caredda, P. Paolo Piras, and Ermanno Serra. "Reduction of Sulfoxides with Sodium or Benzyl Bromide." Synthesis 1990, no. 04 (1990): 329–30. http://dx.doi.org/10.1055/s-1990-26867.

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48

Akkurt, Mehmet, Selvi Karaca, Hasan Küçükbay, Ersin Orhan, and Orhan Büyükgüngör. "1-Benzyl-3-(2-phenethyl)benzimidazolium bromide monohydrate." Acta Crystallographica Section E Structure Reports Online 61, no. 8 (2005): o2452—o2454. http://dx.doi.org/10.1107/s1600536805021653.

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49

Huang, Hua-Rong, Guo Wen-Jiao, Zhi-Yun Du, Yan-Xiong Fang, and Kun Zhang. "1,3-Bis[4-(methoxycarbonyl)benzyl]benzimidazolium bromide monohydrate." Acta Crystallographica Section E Structure Reports Online 66, no. 12 (2010): o3064. http://dx.doi.org/10.1107/s1600536810041929.

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50

Nassiri, Mahmoud. "Synthesis of 4- or 6-(3-Benzyl-2,3-Dihydrobenzo[d]Thiazol-2-yl)Phenol Derivatives by a Novel Three-Component Reaction." Journal of Chemical Research 41, no. 12 (2017): 715–17. http://dx.doi.org/10.3184/174751917x15105690662890.

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A series of 4- or 6-(3-benzyl-2,3-dihydrobenzo[ d]thiazol-2-yl)phenol derivatives was synthesised by reaction of benzothiazole or 2,6-dimethylbenzothiazole with benzyl bromide in the presence of 2,6-dimethylphenol, 2,6-di- tert-butylphenol or 2- tert-butyl-4-methylphenol. The reactions proceeded in the presence of Et3N as a base and acetonitrile as solvent under reflux for 5 h in good yields.

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