Reductive aldol-type reaction of α,β-unsaturated esters with aldehydes or ketones in the presence of Rh catalyst and Et2Zn
作者:Kazuyuki Sato、Motoyuki Isoda、Yoriko Tokura、Keiko Omura、Atsushi Tarui、Masaaki Omote、Itsumaro Kumadaki、Akira Ando
DOI:10.1016/j.tetlet.2013.08.109
日期:2013.10
The reaction of RhCl(PPh3)(3) with Et2Zn easily generated a rhodium-hydride complex (Rh-H) that added to alpha,beta-unsaturated esters to form rhodium enolate complexes by formal 1,4-reduction. These rhodium enolates gave the corresponding Reformatslcy-type reagents through transmetalation, and they reacted with various aldehydes and ketones to give reductive aldol-type products in good to excellent yields. (C) 2013 Elsevier Ltd. All rights reserved.