mixture of tris(dimethy1amino)phosphine and triethyl- amine gave diphenylcyclopropenone in 60% yield. Optim- izing the yields in the dialkyl cases wou...
Oct 1, 1991 - Highly Selective Reaction of α-Halo-α,β-unsaturated Esters with Ketones or Aldehydes Promoted by SmI2: An Efficient Alternative Access to ...
Jun 13, 1994 - functionalization. Tsutomu Yokomatsu, Yoshinori Yoshida, and. Shiroshi Shibuya*. Tokyo College of Pharmacy, 1432-1 Horinouchi,Hachioji,.
Published online 1 May 2002. Published in print 1 December 1994. +. Altmetric Logo Icon More Article Metrics. CURRENT ISSUELATEST NEWS. COVER ...
Waldemar Adam, Peter Groer, Hans-Ulrich Humpf, and Chantu R. Saha-Möller ... Victor Oswaldo Nava-Salgado , Eva-Maria Peters , Karl Peters , Hans Georg ...
Feb 11, 1993 - National Institutes of Health (R01-NS15426), the U.S. Army. Research Office (28748-LS-SM and 29597-LS-EPS), and the. National Science ...
Jan 14, 1994 - Synthesis of , ,Ã,/8-Tetrasubstituted /8-Lactones from Ketones, Ethyl ... /8-Lactone Formation in the Electrochemical and the Classical.
A New Stereoselective Synthesis of (E)-.alpha.,.beta.-Unsaturated-.gamma.-dicarbonyl ... α-Nitro Ketone Synthesis Using N-Acylbenzotriazoles. Alan R. Katritzky ...
Apr 2, 1991 - CH Utrecht, The Netherlands, and Bijvoet Research Institute, ... University of Utrecht, Padualaan 8, 3584 CH Utrecht, The Netherlands.
(Z)-.alpha.-(trimethylsilyl) .alpha.,.beta.-unsaturated esters. Their stereoselective conversion into .alpha.,.beta.- and .beta.,.gamma.-unsaturated esters and .beta.
J. Org. Chem., Vol. 39, No. 15,1974 2321
Communications This new method can also be applied to the synthesis of cyclopropenones although in the case of the dimethyl derivative the yields obtained so far uia 7 have been very poor (
