A new C2-symmetric heterobimetallic complex as a promoter for asymmetric Michael addition reactions
作者:G. Manickam、G. Sundararajan
DOI:10.1016/s0957-4166(97)00234-6
日期:1997.7
C2-symmetric chiral amino diol (1R,5R)-3-aza-3-benzyl-1,5-diphenyl pentan-1,5-diol [(R,R)-I] has been synthesised by a modified procedure. The heterobimetallic catalyst [I2AlLi] obtained by reaction of the amino diol [(R,R)-I] with LiAlH4, promotes asymmetric Michael addition of malonic esters and thiophenols to α,β-unsaturated compounds with high enantiomeric excess.
甲Ç 2 -对称的手性氨基二醇(1R,5R)-3-氮杂-3-苄基-1,5-二苯基戊烷-1,5-二醇[(R,R)-I]已由经修饰的方法合成。所述的异的催化剂〔Ⅰ 2 AlLi]通过氨基二醇[(R,R)-I]用的LiAlH的反应得到4,促进不对称迈克尔加成丙二酸酯和苯硫酚,以α,以高对映体β不饱和化合物的过量的。