Synthesis of 2-Hydroxymethyl Ketones by Ruthenium Hydride-Catalyzed Cross-Coupling Reaction of α,β-Unsaturated Aldehydes with Primary Alcohols
作者:Aurélien Denichoux、Takahide Fukuyama、Takashi Doi、Jiro Horiguchi、Ilhyong Ryu
DOI:10.1021/ol902289r
日期:2010.1.1
The cross-coupling reaction of α,β-unsaturated aldehydes with primary alcohols to give 2-hydroxymethyl ketones was achieved using RuHCl(CO)(PPh3)3 as a catalyst. This atom-economical reaction is likely to proceed via the hydroruthenation of α,β-unsaturated aldehydes followed by an aldol reaction of the resultant enolates with aldehydes to give α-formylated ketones, which undergo transfer hydrogenation
使用RuHCl(CO)(PPh 3)3作为催化剂,可以实现α,β-不饱和醛与伯醇的交叉偶联反应,生成2-羟甲基酮。这种原子经济反应很可能是通过α,β-不饱和醛的加氢钌化反应进行的,然后是烯醇与醛的醛醇缩合反应,生成α-甲酰化的酮,然后与伯醇进行转移氢化反应,生成α-羟甲基酮。 。还原步骤可产生醛,参与下一催化循环。