An approach to synthesis of (Z)-2-chloro-1,3-diarylpropen-1-ones by Vilsmeier reagent (bis-(trichloromethyl) carbonate/DMF)
摘要:
A series of (Z)-2-chloro-1,3-diarylpropen-1-ones were unexpectedly synthesized in moderate yields by treatment of easily available 2,3-epoxy-1, 3-diarylpropan-1-ones with Vilsmeier reagent, which was derived from bis(trichloromethyl) carbonate (BTC, triphosgene) and DMF. A possible mechanism was also proposed, where sequential ring-opening, halogenation and elimination reactions were involved. (C) 2011 Wei Ke Su. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Preparation of (Z)-α-chloro-α,β-unsaturated ketones with total or high diastereoselectivity
作者:José M Concellón、Mónica Huerta
DOI:10.1016/s0040-4020(02)00935-3
日期:2002.9
(Z)-alpha-Chloroenones are obtained by reaction of alpha-chloro-beta-hydroxyketones with acetic anhydride, pyridine and 4-dimethylaminopyridine with total or high diastereoselectivity and in high yield. (C) 2002 Elsevier Science Ltd. All rights reserved.
BROSCHE K.; WEBER F. G.; WESTPHAL G.; REIMANN E., Z. CHEM., 1979, 19, NO 3, 96-97
作者:BROSCHE K.、 WEBER F. G.、 WESTPHAL G.、 REIMANN E.