作者:Nobuharu Iwasawa、Isao Ooi、Kennichi Inaba、Jun Takaya
DOI:10.1002/anie.201002683
日期:——
A general protocol for the title transformation has been achieved and is applicable to a wide range of acyclic 1,3‐dienes and cyclic alkyne—Co2(CO)6} complexes leading to various types of benzannulated medium‐sized cyclic compounds after oxidative work up (see scheme; DDQ=2,3‐dichloro‐5,6‐dicyano‐1,4‐benzoquinone). Interestingly, the [4+2] cycloaddition proceeded preferentially over the Pauson–Khand
已经实现了标题转换的通用协议,该协议适用于广泛的无环1,3-二烯和环状炔烃-Co 2(CO)6 }配合物,在氧化后可生成各种类型的苯环中型环状化合物处理(参见方案; DDQ = 2,3-二氯-5,6-二氰基-1,4-苯醌)。有趣的是,[4 + 2]环加成反应优先于Pauson-Khand反应进行。