Contrasting reactivity in Lewis acid-promoted reactions of thio- and silyl-allenes with 1,4-benzoquinones
作者:Thomas A. Engler、Konstantinos Agrios、Jayachandra P. Reddy、Rajesh Iyengar
DOI:10.1016/0040-4039(95)02164-7
日期:1996.1
In Ti(IV)-promoted reactions with 2-methoxy-1,4-benzoquinones 3, thioallenes 1 give 2+2 and/or 3+2 products via attack on a CC moiety of the quinone, whereas silylallene 2 gives products derived from attack on a carbonyl group of the quinone.
在Ti(IV)促进的与2-甲氧基-1,4-苯醌3的反应中,硫代烯1通过攻击醌的CC部分产生2 + 2和/或3 + 2产物,而甲硅烷基2产生产物由攻击醌的羰基衍生而来。