15023-67-3Relevant articles and documents
Sodium cyanide-promoted copper-catalysed aerobic oxidative synthesis of esters from aldehydes
Nowrouzi, Najmeh,Abbasi, Mohammad,Bagheri, Maryam
, (2017/09/30)
A simple and efficient copper-catalysed procedure for oxidative esterification of aldehydes with alcohols and phenols mediated by sodium cyanide, using air as a clean oxidant, is described. A variety of aromatic aldehydes and structurally different alcohols and phenols reacted efficiently, and the product esters were obtained in good to excellent yields under normal atmospheric and solvent-free conditions.
The heteropolyacid catalyzed phenol method for synthesizing Arylester
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Paragraph 0057; 0058, (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.
Olefins from biomass feedstocks: Catalytic ester decarbonylation and tandem Heck-type coupling
John, Alex,Hogan, Levi T.,Hillmyer, Marc A.,Tolman, William B.
supporting information, p. 2731 - 2733 (2015/03/05)
With the goal of avoiding the need for anhydride additives, the catalytic decarbonylation of p-nitrophenylesters of aliphatic carboxylic acids to their corresponding olefins, including commodity monomers like styrene and acrylates, has been developed. The reaction is catalyzed by palladium complexes in the absence of added ligands and is promoted by alkali/alkaline-earth metal halides. Combination of catalytic decarbonylation and Heck-type coupling with aryl esters in a single pot process demonstrates the viability of employing a carboxylic acid as a "masked olefin" in synthetic processes. This journal is