7464-46-2Relevant articles and documents
Transition-Metal-Free DMAP-Mediated Aromatic Esterification of Amides with Organoboronic Acids
Guo, Jiarui,Liu, Lantao,Wang, Tao,Wang, Yanqing,Xu, Kai,Zhang, Yuheng
supporting information, p. 3274 - 3277 (2021/06/26)
A new, transition-metal-free, effective method for aromatic esterification of amides with organoboronic acids has been developed. A wide range of benzoate derivatives were obtained with yields ranging from moderate to good. The catalytic reaction shows a broad substrate scope and excellent functional group tolerance. Conceptually, DMAP mediates the reaction and is crucial for this transformation.
The heteropolyacid catalyzed phenol method for synthesizing Arylester
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Paragraph 0054; 0055, (2016/11/09)
The invention discloses a synthesis method of phenol by aromatic esterification by using heteropoly acid as a catalyst. The method comprises the following steps: adding fatty acid substituted phenol ester I, substituted benzoic acid II, reaction solvent and heteropoly acid into a reaction vessel provided with a thermometer, a water separator and a stirrer, reacting at 110-170 DEG C for 0.5-10 hours, wherein the reaction progress is monitored by TLC (thin layer chromatography) in the reaction process; and after the reaction is finished, centrifuging the reaction solution, taking the supernate, washing to remove the solvent, and carrying out recrystallization or column chromatography on the crude product to obtain the aromatic ester compound III. By using the heteropoly acid as the catalyst, compared with the traditional esterification reaction, the method disclosed by the invention has the advantages of simple after-treatment, and low pollution and environment friendliness due to use of a small amount of acid. The heteropoly acid is a solid acid, and can be recycled by filtration after the reaction is finished. The aromatic esterification reaction of exchanging ester with phenol is adopted to avoid the side reaction caused by high oxidation tendency of the substituted phenol in the reaction, so that the method is simpler to operate and has higher yield.
Ruthenium/NHC-catalyzed tandem benzylic oxidation/oxidative esterification of benzylic alcohols with phenols
Zhang, Di,Pan, Changduo
experimental part, p. 41 - 45 (2012/06/18)
An efficient methodology to access benzoate derivatives via tandem benzylic oxidation/oxidative esterification of benzylic alcohols with phenols catalyzed by ruthenium/NHC was developed. This operationally simple one-pot process uses O2 as the clean oxidant, producing esters in good to excellent yields.