Carbanion-accelerated Claisen rearrangements 5. Studies on stereocontrol with phosphorus-stabilized anions
作者:Scott E. Denmark、G. Rajendra、John E. Marlin
DOI:10.1016/s0040-4039(01)80427-5
日期:1989.1
The allylvinylethers 1 undergo facile and highly diastereoselective carbanionicClaisenrearrangements. The selectivity of the reaction depends on the counterion and the size of the group on the 1,3,2-oxazaphosphorinane nitrogen atom. The origin of the high selectivity is discussed.