Oxidative NHC catalysis for the generation of imidoyl azoliums: synthesis of benzoxazoles
Title | Oxidative NHC catalysis for the generation of imidoyl azoliums: synthesis of benzoxazoles |
Publication Type | Journal Article |
Year of Publication | 2018 |
Authors | Patra, A, James, A, Das, TKanti, Biju, AT |
Journal | Journal of Organic Chemistry |
Volume | 83 |
Issue | 3 |
Pagination | 14820-14826 |
Date Published | DEC |
Type of Article | Article |
ISSN | 0022-3263 |
Abstract | N-Fleterocyclic carbene (NHC)-catalyzed intramolecular cyclization of aldimines generated from 2-amino phenols and aromatic aldehydes leading to the synthesis of 2-arylbenzoxazoles under mild conditions is presented. The reaction proceeds via the generation of the aza-Breslow intermediates from imines and NHC, which under oxidative conditions form the key imidoyl azoliums and a subsequent intramolecular cyclization furnishes the product. The reaction tolerates a broad range of functional groups, and the products are formed in generally good yields. |
DOI | 10.1021/acs.joc.8b02598 |
Type of Journal (Indian or Foreign) | Foreign |
Impact Factor (IF) | 4.805 |
Divison category:
Organic Chemistry
Add new comment