From allylic alcohols to aldols via a novel, tandem isomerization–condensation catalyzed by Fe(CO)5
作者:Christophe Crévisy、Marina Wietrich、Virginie Le Boulaire、Ramalinga Uma、René Grée
DOI:10.1016/s0040-4039(00)02000-1
日期:2001.1
Allylic alcohols react with aldehydes, in the presence of catalytic amounts of Fe(CO)5 and under irradiation, to give mainly aldol products. A small amount of ketone resulting from the classical isomerization process is also isolated. This new aldol-type reaction is a complete atomeconomy process occurring under neutral conditions.
(bda)Fe(CO)(3) and (COT)Fe(CO)(3) are shown to be excellent catalysts for the tandem isomerization-aldol reaction of allylic alcohols with aldehydes and to significantly increase the scope of this aldolization process, especially, in the case of sterically hindered aldehydes. (C) 2003 Elsevier Ltd. All rights reserved.