Stereoselective palladium-catalyzed cyclopropanation of α,β-unsaturated carboxylic acids derivatized with oppolzer's sultam
作者:Jerk Vallg»rda、Uli Hacksell
DOI:10.1016/0040-4039(91)80102-c
日期:1991.9
N-enoyl sultams, derived from alpha,beta-unsaturated carboxylic acids and bornane[10,2]sultam, undergo a stereoselective Pd-catalyzed cyclopropanation upon treatment with diazomethane. The stereoselectivity of the reaction is temperature dependent.