Iron-Catalyzed Intramolecular Alkyne–Carbonyl Metathesis: A New Cyclization Strategy for the Synthesis of Benzocarbazole and Azepino[1,2-a]indole Derivatives
作者:Umasish Jana、Kartick Paul、Swapnadeep Jalal、Sandip Kundal、Baitan Chakraborty
DOI:10.1055/s-0036-1588472
日期:2017.9
Published as part of the Special Topic Modern Cyclization Strategies in Synthesis Abstract An efficient synthesis of benzocarbazoles and benzo[3,4]azepino[1,2-a]indole derivatives through an FeCl3-catalyzed alkyne–aldehyde metathesis reaction is described. Structurally diverse benzo[a]carbazoles, benzo[c]carbazoles, and benzo[3,4]azepino[1,2-a]indoles have been achieved in good yields with high regio-
作为专题“现代合成中的环化策略”的一部分发布 抽象的 描述了一种通过FeCl 3催化的炔醛分解反应有效合成苯并咔唑和苯并[3,4]氮杂环庚烷[1,2- a ]吲哚衍生物的方法。在催化,廉价,有价物的存在下,已经以高收率和高区域选择性和化学选择性获得了结构多样的苯并[ a ]咔唑,苯并[ c ]咔唑和苯并[3,4] azepino [1,2- a ]吲哚。和环保型FeCl 3作为催化剂。 描述了一种通过FeCl 3催化的炔醛分解反应有效合成苯并咔唑和苯并[3,4]氮杂环庚烷[1,2- a ]吲哚衍生物的方法。在催化,廉价,有价物的存在下,已经以高收率和高区域选择性和化学选择性获得了结构多样的苯并[ a ]咔唑,苯并[ c ]咔唑和苯并[3,4] azepino [1,2- a ]吲哚。和环保型FeCl 3作为催化剂。