作者:Marina Burdisso、Anna Gamba、Remo Gandolfi、Roberta Oberti
DOI:10.1016/s0040-4020(01)86003-8
日期:1988.1
3,4-Dihydroisoquinoline-N-oxide 1 reacted readily with both acyclic (Z)- and (E)-disubstituted alkenes bearing electron-attracting substituents (methoxycarbonyl, cyano, phenylsulphonyl and benzoyl groups) and with cyclic derivatives (e.g. maleimides) to give mixtures of the two possible diastereoisomers. Similar amounts of - and -adducts were formed in the reactions of (Z)-cyano, methoxycarbonyl and
3,4-二氢异喹啉-N-氧化物1易于与带有吸电子取代基(甲氧羰基,氰基,苯磺酰基和苯甲酰基)的无环(Z)-和(E)-二取代烯烃和环状衍生物(例如马来酰亚胺)反应生成给出两种可能的非对映异构体的混合物。在(Z)-氰基,甲氧基羰基和苯甲酰基衍生物的反应中形成相似量的-和-加合物,而在(Z)-(苯基磺酰基)和环状衍生物的情况下-加成明显胜过其-对应物。在1与富电子烯烃[[Z]-二苯乙烯,碳酸亚乙烯酯,等]的缓慢反应中也观察到了高选择性。