Chiral N-Heterocyclic Carbene-Pd(0)-Catalyzed
Asymmetric Diamination of Conjugated Dienes
and Triene
Liang Xu andYian Shi*
Department of Chemistry, Colorado State University,
Fort Collins, Colorado 80523
yian@lamar.colostate.edu
Received October 5, 2007
Abstract:
Studies show that a variety of conjugated dienes and triene
can be enantioselectively diaminated using di-tert-butyldiaziridinone as nitrogen source and chiral N-heterocyclic carbene-Pd(0) complex as catalyst in good enantioselectivity
(62-91% ee) with high regio- and diastereoselectivity.
