作者:Shiyang Xu、Baoliang Huang、Guanyu Qiao、Ziyue Huang、Zhen Zhang、Zongyang Li、Peng Wang、Zhenhua Zhang
DOI:10.1021/acs.orglett.8b02247
日期:2018.9.21
A Rh(III)-catalyzed C–H activation of boronic acid with aryl azide to obtain unsymmetric carbazoles, 1H-indoles, or indolines has been developed. The reaction constructs dual distinct C–N bonds via sp2/sp3 C–H activation and rhodium nitrene insertion. Synthetically, this approach represents an access to widely used carbazole derivatives. The practical application to CBP and unsymmetric TCTA derivatives
已开发出一种Rh(III)催化的芳基叠氮化物对硼酸的CHH活化,从而获得不对称的咔唑,1 H吲哚或二氢吲哚。该反应通过sp 2 / sp 3 C-H活化和铑氮烯插入构建了两个不同的C–N键。综合而言,这种方法代表了广泛使用咔唑衍生物的途径。还已经对CBP和不对称TCTA衍生物进行了实际应用。力学实验和DFT计算表明,五元rhodocycle物种是关键的中间体。