Efficient access to β- and γ-carbolines from a common starting material by sequential site-selective Pd-catalyzed C–C, C–N coupling reactions
作者:Tran Quang Hung、Do Trung Hieu、Dinh Van Tinh、Ha Nam Do、Tuan Anh Nguyen Tien、Dang Van Do、Le Thanh Son、Ngoc Han Tran、Nguyen Van Tuyen、Vu Minh Tan、Peter Ehlers、Tuan Thanh Dang、Peter Langer
DOI:10.1016/j.tet.2019.130569
日期:2019.10
Two efficient and practical approaches are reported for the synthesis of β- and γ-carboline derivatives from 3,4-dibromopyridine as a common starting material. The β-carbolines were prepared by site-selective Pd-catalyzed C–C coupling with o-bromophenylboronic acid and subsequent cyclization by double C–N coupling with amines. γ-Carbolines were prepared from the same starting material by C–N coupling