Highly Enantio- and Diastereoselective Tandem Generation of Cyclopropyl Alcohols with up to Four Contiguous Stereocenters
作者:Hun Young Kim、Alice E. Lurain、Patricia García-García、Patrick J. Carroll、Patrick J. Walsh
DOI:10.1021/ja0539239
日期:2005.9.28
Three highly enantio- and diastereoselective one-pot procedures for the synthesis of cyclopropyl and iodocyclopropyl alcohols with up to four contiguous stereocenters are reported. Route 1 involves asymmetric addition of an alkylzinc reagent to an enal followed by diastereoselective cyclopropanation. Route 2 parallels route 1, except that iodoform is used to generate the zinccarbenoid, and the products