Studies on diastereoselectivity of the cobalt(I) catalyzed cycloisomerization of substituted ε-acetylenic β-ketoester
作者:Paul Cruciani、Corinne Aubert、Max Malacria
DOI:10.1016/s0040-4039(00)73466-6
日期:1994.9
Cobalt (I) catalyzed cycloisomerization of a epsilon-acetylenic beta'-alkyl beta-ketoester led to highly functionalized methylenecyclopentanes with stereocontrol of two contiguous centers. The level of diastereoselectivity is moderate to high (de = 12.92%).