Preparation of tertiary amides via aryl, heteroaryl, and benzyl organozinc reagents; scope and limitations
摘要:
A facile synthetic protocol for the preparation of tertiary amides has been developed. The title compounds have been successfully obtained by the Pd-catalyzed cross-coupling reactions of readily available aryl and benzyl organozinc reagents with the appropriate carbamoyl chlorides. (C) 2012 Elsevier Ltd. All rights reserved.
A Facile Synthetic Route for the Preparation of 4-Substituted 6-Methyl-2-pyrone Derivatives via Organozinc Reagents
作者:Seung-Hoi Kim、Reuben Rieke
DOI:10.1055/s-0031-1289855
日期:2011.12
A novel synthetic pathway for the preparation of 4-substituted 2-pyrone derivatives has been developed. It consists of two different methods; the first represents the Negishi coupling reaction utilizing easily accessible organozinc reagents. More significantly, the other is a new method utilizing a new organozinc reagent, 4-pyronylzinc bromide, which is easily prepared by highly active zinc under mild
Phenylcyclohexene and phenylcyclohexadiene substituted compounds having retinoid antagonist activity
作者:Richard L. Beard、Elliott S. Klein、Andrew M. Standeven、Maria Escobar、Roshantha A.S. Chandraratna
DOI:10.1016/s0960-894x(01)00058-0
日期:2001.3
alleviated by the use of topical retinoid antagonists. We report the synthesis and biological activity of a new series of potent, RAR-specific antagonists substituted with phenylcyclohexene and phenylcyclohexadiene groups.