Method of preparing acyloxybenzenesulfonic acids and salts thereof
申请人:ETHYL CORPORATION
公开号:EP0165480A1
公开(公告)日:1985-12-27
Alkali metal salts and alkaline earth metal salts of' acyloxybenzenesulfonate are prepared by sulfonating an aryl ester of an organic acid with gaseous sulfur trioxide to produce a sulfonation reaction mixture containing acyloxybenzenesulfonic acid, neutralizing the sulfonation reaction mixture with alkali metal hydroxide or alkaline earth metal hydroxide to produce an alkali metal salt or alkaline earth metal salt of an acyloxybenzenesulfonic acid and thereafter recovering from the reaction mixture the acyloxybenzenesulfonic acid salt product thus formed.
Pd‐Catalyzed Highly Regioselective Hydroesterification of Terminal Alkyl Olefins with Formates
作者:Junhua Li、Tianci Shen、Yan Yang、Yian Shi
DOI:10.1002/cjoc.202300691
日期:2024.6.15
A Pd-catalyzedregioselectivehydroesterification of alkyl terminal olefins with aryl formates is described. A wide variety of linear carboxylic esters bearing various functional groups can be obtained in good yields with high regioselectivities under mild reaction conditions by using 1,2-DTBPMB or (p-F-Ph)3P as ligand. The reaction process is operationally simple and requires no handling of toxic
描述了烷基末端烯烃与甲酸芳基酯的 Pd 催化区域选择性加氢酯化反应。以1,2-DTBPMB或( p -F-Ph) 3 P为配体,在温和的反应条件下,可以高产率、高区域选择性地获得多种带有各种官能团的直链羧酸酯。该反应过程操作简单,不需要处理有毒的CO或强酸。所得芳基酯可以容易地转化为其他羧酸衍生物。