Asymmetric synthesis of functionalised pyrrolidines. Highly diastereoselective cyclisations mediated by sulfide and sulfoxide ligands
作者:Ian W. Davies、Timothy Gallagher、R. Brian Lamont、David I. C. Scopes
DOI:10.1039/c39920000335
日期:——
give the corresponding 2-vinylpyrrolidines 2b, 6a and 7a, respectively proceeds with a high (up to 99% diastereoisomeric excess) level of diastereoselectivity; in all of these cases the sense of asymmetric induction observed has been shown to be the same.