One-Pot Synthesis of Pyrrolo[3,2-f]- and Pyrrolo[2,3-h]quinoline Derivatives: Observation of an Unexpected Mechanistic Pathway
作者:Rajagopal Nagarajan、Subburethinam Ramesh
DOI:10.1055/s-0031-1290565
日期:2012.3
One-pot synthesis of pyrrolo[3,2-f]- and pyrrolo[2,3-h]quinolines were obtained starting from substituted 5-aminoindoles, benzaldehydes, and phenylacetylenes in the presence of La(OTf)3 as a catalyst in good yields. The indole moiety in 5-aminoindole is believed to be mainly responsible for the observation of unexpected mechanistic pathway to the formation of pyrrolo[2,3-h]quinoline.
从取代的
5-氨基吲哚、
苯甲醛和
苯乙炔出发,以La(OTf)3作为催化剂,一锅合成了
吡咯并[3,2-f]和
吡咯并[2,3-h]
喹啉,并取得了良好的产率。
5-氨基吲哚中的
吲哚结构被认为主要负责意外的机理路径,从而形成
吡咯并[2,3-h]
喹啉。