First formation of 1,1-dihalo-1,3-butadienes from reactions of dichloro- and dibromocarbenes with cyclopropenes via new addition-rearrangements
作者:Jürgen Weber、Linxiao Xu、Udo H. Brinker
DOI:10.1016/s0040-4039(00)61306-0
日期:1992.8
dichloro-, dibromo-, and bromofluorocarbene, 2,3-diaryl-1,1-dihalo-1,3-butadienes are formed. In addition, 1,3-diaryl-2,3-dihalocyclo-1-butenes are formed. For the formation of the 1,1-dihalobutadienes, new addition-rearrangement mechanisms are proposed. Furthermore, some reactions of cyclobutenes with dihalocarbenes are described.
据报道有新的二氯-和二溴卡宾加成-重新排列。在1,2-二芳基环丙烯与二氟,二氯,二溴和溴氟卡宾的反应中,形成2,3-二芳基-1,1-二卤代-1,3-丁二烯。另外,形成1,3-二芳基-2,3-二卤代环-1-丁烯。为了形成1,1-二卤代丁二烯,提出了新的加成-重排机制。此外,描述了环丁烯与二卤卡宾的一些反应。