Regioselective Alkoxycarbonylation of Allyl Phenyl Ethers Catalyzed by Pd/dppb Under Syngas Conditions
作者:Manuel Amézquita-Valencia、Howard Alper
DOI:10.1021/acs.joc.6b00522
日期:2016.5.6
A simple and regioselective synthesis of phenoxy esters and phenylthio esters is reported. The products are obtained by selective alkoxycarbonylation catalyzed by Pd2(dba)3, 1,4-bis(diphenylphisphino)butane (dppb), and syngas (CO/H2) in chloroform/alcohol. This methodology affords bifunctional products in good yield with excellent n-selectivity and without the need to use additives.
报道了苯氧基酯和苯硫基酯的简单且区域选择性的合成。该产品由通过Pd催化的选择性烷氧基羰基而获得2(DBA)3,1,4-双(diphenylphisphino)丁烷(DPPB)的合成气(CO / H,和2)的氯仿/醇。这种方法可提供双收率好的产品,并具有出色的n选择性,并且无需使用添加剂。