On the Reaction of<i>N</i>-Vinyliminophosphoranes. 9. The Synthesis and Reaction of<i>N</i>-(1,3,5-Cycloheptatrienyl)iminophosphoranes to Provide a Novel Route to 1-Azaazulenes
作者:Yukio Iino、Eijiro Hara、Makoto Nitta
DOI:10.1246/bcsj.62.1913
日期:1989.6
The first syntheses of N-(2,4,6-cycloheptatrienyl)iminophosphoranes (3a, b) and their thermal conversion to N-(1,3,5-cycloheptatrienyl)iminophosphoranes (5a,b) have been studied. The kinetic study of the 1,5-hydrogen migration of 3a,b to N-(1,3,6-cycloheptatrienyl)iminophosphoranes (4a,b) has also been investigated. The reaction of 5b with α-bromoacetophenone derivatives has provided a novel route to the 1-azaazulene ring system, albeit in low yields.
研究了 N-(2,4,6-环庚三烯基)亚氨基正膦 (3a, b) 的首次合成及其热转化为 N-(1,3,5-环庚三烯基)亚氨基正膦 (5a,b)。还研究了 3a,b 到 N-(1,3,6-环庚三烯基)亚氨基正膦 (4a,b) 的 1,5-氢迁移的动力学研究。 5b与α-溴苯乙酮衍生物的反应为1-氮杂薁环体系提供了一条新的路线,尽管产率较低。