Acetylenic esters. Part III. Reactions of thiocarbonyl compounds with methyl propiolate, methyl methylpropiolate, and methyl phenylpropiolate
作者:G. Dallas、J. W. Lown、J. C. N. Ma
DOI:10.1039/j39680002510
日期:——
Non-terminal acetylenic esters react with many thiocarbonyl compounds to form heterocycles or 1 : 1 addition products. Propiolic esters in most cases form isomeric mixtures of dimethyl 3,3′-thiodiacrylates (I). The stereochemical course of the thiolic nucleophilic additions may be controlled for preparative purposes by changes in solvent polarity. All three stereoisomers of (I) have been prepared.
An efficient solvent-tuning approach for the rapid synthesis of thiazolidinone derivatives and the selective synthesis of 2-amino-4H-1,3-thiazin-4-one and dimethyl 3,3′-thiodiacrylates
作者:Garima Choudhary、Rama Krishna Peddinti
DOI:10.1016/j.tetlet.2014.08.032
日期:2014.10
Green synthetic approach has been developed for the rapid generation of thiazolidinone derivatives as crystallized products under catalyst-free conditions in water by polarity adjustment with ethyl lactate as a co-solvent in excellent yields. Additionally, interesting findings on the synthesis of 2-amino-4H-1,3-thiazin-4-one and dimethyl 3,3'-thiodiacrylates have been reported. (C) 2014 Elsevier Ltd. All rights reserved.
Drozd, V. N.; Petrov, M. L.; Popova, O. A., Journal of Organic Chemistry USSR (English Translation), 1984, vol. 20, # 6, p. 1082 - 1087
作者:Drozd, V. N.、Petrov, M. L.、Popova, O. A.、Vyazgin, A. S.