The Isolation and Characterization of a Rhodacycle Intermediate Implicated in Metal-Catalyzed Reactions of Alkylidenecyclopropanes
作者:Phillip A. Inglesby、John Bacsa、Daniela E. Negru、P. Andrew Evans
DOI:10.1002/anie.201310232
日期:2014.4.7
the isolation of a metallacycle in a metal‐catalyzed higher‐order carbocyclization reaction and thereby provides important insight into the ligand requirements for the insertion of π‐components. Furthermore, it serves as a convenient synthon for the development of challenging higher‐order carbocyclization reactions, as exemplified by the reaction with an activated allene.
描述了涉及铑催化的亚烷基亚环丙烷(ACP)反应的铑环中间体的分离和表征。金属环的结构是由X射线晶体学明确确定的,并且在铑催化的ACP的碳环化和烯环异构化反应中起催化作用。这项工作代表了在金属催化的高级碳环化反应中金属环的分离的罕见实例,从而为插入π组分的配体需求提供了重要见识。此外,它还可以作为开发具有挑战性的高阶碳环化反应的便捷合成子,例如与活化的丙二烯的反应。