An Efficient Method for the Synthesis of Alkylidenecyclobutanones by Gold-Catalyzed Oxidative Ring Enlargement of Vinylidenecyclopropanes
作者:Wei Yuan、Xiang Dong、Yin Wei、Min Shi
DOI:10.1002/chem.201201161
日期:2012.8.20
Rings of gold: Vinylidenecyclopropanes can undergo efficient oxidative ring enlargements under mild conditions to give the corresponding alkylidenecyclobutanone derivatives in good yields (see scheme). A plausible mechanism for this transformation has been proposed, and a new AuI–N complex, which can be used as an efficient catalyst in this oxidation reaction, has been isolated.
金戒指:亚乙烯基环丙烷在温和的条件下可以进行有效的氧化环扩环,从而以高收率得到相应的亚烷基环丁酮衍生物(参见方案)。已经提出了这种转化的合理机制,并且已经分离出可以用作该氧化反应的有效催化剂的新的Au I – N络合物。