Nickel-Catalyzed Regioselective Carbomagnesation of Methylenecyclopropanes through a Site-Selective Carbon-Carbon Bond Cleavage
作者:Jun Terao、Masahiro Tomita、Surya Prakash Singh、Nobuaki Kambe
DOI:10.1002/anie.200904721
日期:2010.1.4
Unwringing the ring: Methylenecyclopropanes reacted with vinyl and aryl Grignard reagents in the presence of a nickel catalyst to afford vinyl‐ and arylmagnesation products, respectively, through a selective CC bond cleavage (see scheme). The reaction provides a new method for the preparation of substituted homoallyl and allyl Grignard reagents.
解开环:亚甲基环丙烷在镍催化剂存在下与乙烯基和芳基格氏试剂反应,通过选择性的CC键裂解分别得到乙烯基和芳基磁化产物(参见方案)。该反应提供了一种制备取代的烯丙基和烯丙基格氏试剂的新方法。