金催化的带有叠氮基的共轭炔与芳烃的环化得到环化的[ c ]咔唑。使用苯、吡咯和吲哚衍生物作为亲核试剂,分别制备苯并[ c ]-、吡咯并[2,3- c ]-和吲哚[2,3- c ]咔唑。该反应通过吡咯和苯环的构建进行,并伴随着两个碳-碳键和一个碳-氮键的形成以及两个芳香族C-H键的断裂。通过密度泛函理论计算研究了与吡咯的反应机理。N , N'-二甲基化吲哚并[2,3- c ]咔唑在电解时表现出紫外-可见-近红外和荧光光谱的双重变化。
A rapid synthesis of 2-alkynylindoles and 2-alkynylbenzofurans
摘要:
An expeditious synthesis of 2-alkynylindoles and 2-alkynylbenzofuran derivatives has been devised starting from easily available ortho-substituted aryl diynes. (c) 2008 Elsevier Ltd. All rights reserved.
A One-Pot Approach to Phenanthridine Derivatives through Two-Step Rhodium(I) and Gold(I) Catalysis
作者:Zizhong Zhu、Kai Chen、Qin Xu、Min Shi
DOI:10.1002/adsc.201500407
日期:2015.10.12
An effective one-pot procedure for the synthesis of phenanthridinederivatives containing N- or O-heterocycles has been developed through a two-step rhodium-catalyzed [2+2+2] cycloaddition and gold-catalyzed heterocyclization under mild conditions. The substrate scope has been investigated and a plausible reaction mechanism has been proposed on the basis of control experiments and previous literature