Rhenium-Catalyzed Insertion of Nonpolar and Polar Unsaturated Molecules into an Olefinic C−H Bond
作者:Yoichiro Kuninobu、Yasuo Fujii、Takashi Matsuki、Yuta Nishina、Kazuhiko Takai
DOI:10.1021/ol900962v
日期:2009.6.18
Treatment of olefins bearing a directing group with α,β-unsaturated carbonyl compounds, alkynes, or aldehydes in the presence of a catalytic amount of a rhenium complex, [ReBr(CO)3(thf)]2 gave γ,δ-unsaturated carbonyl compounds, dienes, and allyl silyl ethers, respectively. This reaction proceeds via C−H bond activation, insertion of unsaturated molecules into the formed rhenium−carbon bond, and then
在催化量的complex络合物[ReBr(CO)3(thf)] 2的存在下,用α,β-不饱和羰基化合物,炔烃或醛处理带有指导基团的烯烃,得到γ,δ-不饱和羰基化合物,二烯和烯丙基甲硅烷基醚。该反应通过CH键活化,将不饱和分子插入到形成的rh碳键中,然后进行还原消除(或在醛的情况下进行过渡金属化)进行。