Chemical Communications Pub Date : 09/04/2003 00:00:00 , DOI:10.1039/B306483B
Abstract
A reusable, insoluble polystyrene-supported bis(oxazoline) was developed, affording e.e.s >90% in the heterogeneous enantioselective cyclopropanation of styrene and 1,1-disubstituted alkenes with ethyl diazoacetate.