METAL-CATALYZED SYNTHESIS OF CARBOXYLIC ESTERS UTILIZING (<i>E</i>)-PHENYL 2-PYRIDYL KETONE<i>O</i>-ACYLOXIMES (PPAO)
作者:Tadayo Miyasaka、Hidehiro Ishizu、Akihiro Sawada、Akiko Fujimoto、Shunsaku Noguchi
DOI:10.1246/cl.1986.871
日期:1986.6.5
(E)-phenyl 2-pyridyl ketone O-acyloximes (PPAO) could be highly activated by metal ions such as Fe3+, Cu2+, and Zn2+, and the most effective catalyst for the synthesis of carboxylic esters was found to be Zn2+. Furthermore, sterically hindered carboxylic esters were easily obtained utilizing PPAOs and alcoholates in high yields.
(E)-苯基 2-吡啶基酮 O-acyloximes (PPAO)可被 Fe3+、Cu2+ 和 Zn2+ 等金属离子高度活化,并且发现 Zn2+ 是合成羧酸酯最有效的催化剂。此外,利用 PPAO 和醇酸树脂很容易就能高产率地获得立体受阻的羧酸酯。