Organocatalytic asymmetric epoxidation and tandem epoxidation/Passerini reaction under eco-friendly reaction conditions
作者:Anna Maria Deobald、Arlene G. Corrêa、Daniel G. Rivera、Márcio Weber Paixão
DOI:10.1039/c2ob26247a
日期:——
An eco-friendly synthesis of highly functionalized epoxides and their incorporation into an organocatalytic multicomponent approach are reported. For this, a modified class of diarylprolinol silyl ethers was designed to enable high catalytic activity in an environmentally benign solvent system. The one-pot procedure showed great efficiency in promoting stereoselective multicomponent transformations in a tandem, ‘green’ fashion. Because of its non-residual, efficient and selective character, this synthetic design shows promise for large-scale applications in both diversity and target-oriented syntheses.
Catalytic Decarbonylation of Epoxyaldehydes: Applications to the Preparation of Terminal Epoxides
作者:Erick Carreira、Bill Morandi
DOI:10.1055/s-0029-1217562
日期:2009.8
A catalyticdecarbonylation reaction for epoxyaldehydes is reported. This reaction may be sequentially used with known asymmetric methods to access optically active mono- and disubstituted terminal epoxides, as illustrated for a key example.