α-(o-溴苯胺基)丙烯腈1a-f和2a-e和α-(N-链烯基氨基)-β-(o-溴苯基)丙烷腈7a-c <和8a-c经历钯催化转化为o-(甲基氨基) )苄腈12,邻-[((烯基氨基)乙烯基]苄腈24a-c,N-烯基苯胺26b,26c,3-苯并ze庚因29a,29c,31a和32a,γ-咔啉36和吡咯并[3,2- b ]吲哚45该反应涉及将芳族钯分子内加成到氰基上,以及随后的过程,例如氰基基团的转位,水解,电环化,乙基基团的转移和氧化芳构化。提出了氰基钯催化芳基化的一般机理。
Palladium-catalysed regioselective cyclisation of unsaturated bromoanilinoalkenenitriles
作者:Chau-Chen Yang、Pei-Jiun Sun、Jim-Min Fang
DOI:10.1039/c39940002629
日期:——
α(o-Bromoanilino)alkenenitriles are converted to 2-(methylamino)benzonitrile and varied γ-carbolines by catalysis with palladium; the reactions may involve intramolecular aryl additions to the cyano group and other processes such as cyano group transposition, electrocyclisation, ethyl group transfer and oxidative aromatisation.