Trimethyl borate

Trimethyl borate

Examples from the Chemical Industry

Published in John Andraos, Synthesis Green Metrics, 2018

Phenyl boronic acid can be made from phenyl magnesium bromide and trimethyl borate either in a batch reactor or a microtubular reactor (Scheme 7.3). The performances of each method are summarized below. In the microtubular reactor the production of diphenylboronic acid side product is effectively suppressed.

Synthesis and microwave dielectric properties of polyphenylene liquid crystal compounds with lateral substitution by methyl and fluorine

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Journal Information

Published in Liquid Crystals, 2021

Haohao Liu, Manman Liu, Shihan Gao, Zhiyong Zhang, Xiangru Wang, Jintao Guan, Junfei Qiao, Hongmei Chen, Xionghui Cai

All chemicals used in this study are of analytical grade, unless otherwise stated. 2-Methylaniline, 3-methylaniline, 2-fluoro-4-bromoaniline, 2,6-difluoro-4-bromoaniline, iodine, sodium nitrite 4-n-pentylphenylboronic acid were purchased from GeAo chem. Co., Ltd. n-butyl lithium (2.5 M) and Trimethyl borate were obtained from Jiangsu Hualun Chemical Co., Ltd. 3,4-Cifluorophenyl -boronic acid, 3,4,5-trifluorophenylboronic acid, 3-fluoro-4’-butylbiphenyl -boronic acid and tetra (triphenylphosphine)palladium were obtained from MAISON chem. Co., Ltd. The products were purified either by column chromatography using silica gel (200–300 mesh) or by recrystallisation from analytical grade solvents.

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Synthesis and microwave dielectric properties of polyphenylene liquid crystal compounds with lateral substitution by methyl and fluorine