Catalytic Cyclization of
<i>o</i>
‐Alkynyl Phenethylamines via Osmacyclopropene Intermediates: Direct Access to Dopaminergic 3‐Benzazepines
作者:Andrea Álvarez‐Pérez、Carlos González‐Rodríguez、Cristina García‐Yebra、Jesús A. Varela、Enrique Oñate、Miguel A. Esteruelas、Carlos Saá
DOI:10.1002/anie.201505782
日期:2015.11.2
A novel osmium‐catalyzed cyclization of o‐alkynyl phenethylamines to give 3‐benzazepines is reported. The procedure allows the straightforward preparation of a broad range of dopaminergic 3‐benzazepine derivatives. Mechanistic investigations revealed that the process takes place via osmacyclopropene intermediates, which were isolated and characterized by X‐ray crystallography.
报道了一种新的催化的邻炔基苯乙胺环化反应生成3-苯并ze庚因。该程序可以直接制备各种多巴胺能3苯并ze庚因衍生物。机理研究表明,该过程是通过环丙烯中间体进行的,该中间体通过X射线晶体学进行了分离和表征。