Pd-catalyzed dual annulation reaction to synthesize the norneocryptolepine derivatives involving the concerted construction of two central heterocycles is reported. The further methylation of the norneocryptolepine to afford its alkaloid analog neocryptolepine implies that synthesis of various neocryptolepine derivatives is feasible. The oxidative addition of Pd(0) is indicated as the key step to activate the
Borsche et al., Justus Liebigs Annalen der Chemie, 1942, vol. 550, p. 160,167
作者:Borsche et al.
DOI:——
日期:——
N-Bromosuccinimide as an efficient catalyst for the synthesis of indolo[2,3-b]quinolines
作者:Ramin Ghorbani-Vaghei、Seyedeh Mina Malaekehpoor
DOI:10.1016/j.tetlet.2012.06.125
日期:2012.8
The use of N-bromosuccinimide as a catalyst promoted the synthesis of polycyclic indolo[2,3-b]quinoline derivatives in good to high yields in the reactions of various aryl amines with indole-3-carbaldehyde at room temperature under mild conditions. (c) 2012 Elsevier Ltd. All rights reserved.