Cobalt(II)-Catalyzed Intermolecular Benzylic C−H Amination with 2,2,2-Trichloroethoxycarbonyl Azide (TrocN<sub>3</sub>)
作者:Hongjian Lu、Velusamy Subbarayan、Jingran Tao、X. Peter Zhang
DOI:10.1021/om900916g
日期:2010.1.25
2,2,2-Trichloroethoxycarbonyl azide (TrocN3) is an effective nitrene source for cobalt(II)-catalyzed intermolecular nitrene insertion of C−H bonds. Among different metalloporphyrins studied, Co(II)(TPP) was shown to be a competent catalyst for the selective amination of various benzylic C−H bonds under mild conditions without the need of other reagents or additives, forming the desired Troc-protected
2,2,2-三氯乙氧羰基叠氮化物(TrocN 3)是钴(II)催化的CH键分子间氮烯插入的有效氮源。在研究的不同金属卟啉中,Co(II)(TPP)被证明是在温和条件下选择性胺化各种苄基CH键的有效催化剂,而无需其他试剂或添加剂,从而形成了所需的Troc保护的胺。氮气是唯一的副产品,产量中等至高。