Ring opening of cyclopropylketones induced by photochemical electron transfer
作者:Janine Cossy、Nathalie Furet、Samir BouzBouz
DOI:10.1016/0040-4020(95)00727-p
日期:1995.10
Depending on the substitution pattern of cyclopropylketones, the photochemically induced electron transfer of tertiary amines to cyclopropylketones leads either to the formation of 3-substituted cycloalkanones or to ring expanded products.
Cobalt(I)-catalyzed cycloisomerization of cyclic â-acetylenic β-ketoesters 1 led to bicyclo[n.3.0]derivatives 2 in high yield and with a total stereocontrol of two contiguous centers.