Studies on the reactions of α,β-enones with allyl indium reagent; effects of TMSCl as promoter on regioselectivity
作者:Phil Ho Lee、Hyosoon Ahn、Kooyeon Lee、Sun-young Sung、Sunggak Kim
DOI:10.1016/s0040-4039(00)01872-4
日期:2001.1
Regioselectivity on the reactions of α,β-enones with allyl indium reagents in the presence of TMSCl was systematically studied. 2-Cyclohexen-1-one, (R)-carvone, 2-cyclohepten-1-one and chalcone produced 1,4-addition products in good yields, whereas 2-cyclopenten-1-one, 2-methylcyclopenten-1-one, 4,4-dimethylcyclohexen-1-one and acyclic α,β-enones afforded 1,2-addition products.
系统地研究了在TMSC1存在下,α,β-烯键与烯丙基铟试剂反应的区域选择性。2-环己烯-1-酮,(R)-香芹酮,2-环庚烯-1-酮和查尔酮可产生高产率的1,4-加成产物,而2-环戊烯-1-酮,2-甲基环戊烯-1-酮,4,4-二甲基环己烯-1-酮和无环α,β-烯酮提供1,2-加成产物。