Etude de la regioselectivite de la substitution des carbanions par des derives allyliques catalysee au palladium. Obtention selective de composes a carbone quaternaire
作者:Thérèse Cuvigny、Marc Julia、C. Rolando
DOI:10.1016/0022-328x(85)87384-8
日期:1985.4
carbanions and ligands on π-allylpalladium has been investigated in the substitution of primary or tertiary terpene derivatives. Conditions have been found under which the substitution takes place essentially at one or the other end of the allylic system. This provides a new and convenient way to obtain compounds with quaternary carbon atoms, which has been exemplified by the synthesis of 3,3-dimethyl-4-pentenenitrile
在取代伯或叔萜衍生物中,已经研究了离去基团,碳负离子和配体对π-烯丙基铝的影响。已经发现条件,在该条件下取代基本上发生在烯丙基体系的一个或另一端。这为获得具有季碳原子的化合物提供了一种新的便捷方法,已通过合成3,3-二甲基-4-戊腈进行了举例说明。