Synthetic Applications of Lithiated <i>N</i>-Boc Allylic Amines as Asymmetric Homoenolate Equivalents
作者:Marna C. Whisler、Peter Beak
DOI:10.1021/jo0260084
日期:2003.2.1
transmetalation of the lithiated intermediates and reactions with aldehyde electrophiles can be controlled to afford highly enantioenriched anti homoaldol products. Use of an anti aldehyde homoaldol product as the chiral electrophile in an iterative reaction provides a double homoaldol product containing four stereogenic centers with high diastereoselectivity and enantioselectivity. Reactionpathways are proposed