Synthesis of highly N-substituted indole library via conjugate additions of indoline and their synthetic tool potentials
摘要:
A comprehensive library of N- or 1-substituted indoles was formed by conjugate additions of indoline with Michael acceptors followed by an oxidation step. Using N-substituted indoles as key Michael donors, the synthesis of 1,3-disubstituted indoles was also accomplished. (c) 2012 Elsevier Ltd. All rights reserved.
An efficient method has been developed for the synthesis of new aza-substituted indoles. The methodology involves a two-step synthesis. The first step involves the Michael addition of indoline with various Michael acceptors. The other includes the oxidation of the indoline ring in the Michael adducts to an indole.
A comprehensive library of N- or 1-substituted indoles was formed by conjugate additions of indoline with Michael acceptors followed by an oxidation step. Using N-substituted indoles as key Michael donors, the synthesis of 1,3-disubstituted indoles was also accomplished. (c) 2012 Elsevier Ltd. All rights reserved.