Process for the preparation of carboxylic benzyl esters
申请人:——
公开号:US20030233008A1
公开(公告)日:2003-12-18
Carboxylic benzyl esters can be prepared by reacting benzyl chloride with carboxylic acids in the presence of one or more quaternary ammonium carboxylates as catalyst.
羧基苄酯可以通过在一个或多个季铵羧酸盐存在的催化剂下,将苄基氯与羧酸反应制备而成。
Process for the preparation of benzyl carboxylates
申请人:——
公开号:US20030055279A1
公开(公告)日:2003-03-20
Benzyl carboxylates can be prepared by reacting dibenzyl ethers with carboxylic acids and optionally carboxylic anhydrides in the presence of one or more, preferably one, acids applied to a support as catalyst.
Process for the preparation of hydroxybenzoic benzyl esters
申请人:——
公开号:US20020128523A1
公开(公告)日:2002-09-12
The invention relates to a process for the preparation of hydroxybenzoic benzyl esters by reacting dibenzyl ethers with alkylcarbonyloxybenzoic or alkoxycarbonyloxybenzoic acids and optionally anhydrides thereof in the presence of one or more acids as catalyst.
Process for the preparation of carboxylic acid benzyl esters
申请人:——
公开号:US20040127737A1
公开(公告)日:2004-07-01
Carboxylic acid benzyl esters can be prepared by reacting dibenzyl ethers with carboxylic anhydrides in the presence of acid, optionally applied to a support, as catalyst.