期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 83, 期 23, 页码 14820-14826出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.8b02598
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资金
- Indian Institute of Science
- CSIR
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.
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