An Exceptionally Mild Catalytic Thioester Aldol Reaction Inspired by Polyketide Biosynthesis
摘要:
This report details our discovery of a new catalytic ester aldol reaction using malonic acid half thioesters (MAHTs) that directly affords beta-hydroxythioesters. The reaction is catalyzed by combination of a Cu(II) salt and an amine base, and it can be performed under exceptionally mild conditions (23 degrees C, open to the air, wet solvent). Methyl malonic acid half thioesters afforded syn aldol products with distereoselectivities greater than 6:1.
Lanthanoid complex as a novel carbon dioxide carrier for the carboxylation of active methylene compounds under mild conditions
作者:Hiroshi Abe、Shohei Inoue
DOI:10.1039/c39940001197
日期:——
A lanthanoid complex, formed by the addition of a lanthanoid alkoxide to an isocyanate, serves as a novel carbon dioxide carrier for the rapid carboxylation of active methylene compounds under mild conditions.