4-Arylthio-3-oxazolin-5-ones have been synthesized in a ‘one pot reaction’ from ethyl cyanoformate, thiophenols and ketones in the presence of diethylamine and titanium tetrachloride.
Synthesis of some substituted 1,3-thiazolines and 1,3-thiazolidines
作者:A. N. Pudovik、V. K. Khairullin、M. A. Vasyanina、I. K. Pokrovskaya、O. N. Kataeva、I. A. Litvinov、V. A. Naumov
DOI:10.1007/bf00958849
日期:1990.11
Sodium salts of 2,2-dimethyl-4-mercapto-5-oxo-1,3-thiazoline and 2-oxo-3-mercapto-1-thia-4-azaspiro[4.5]dec-3-ene, obtained from a solvate of sodium cyanodithioformate with three molecules of dimethylformamide, acetone, or cyclohexanone in the presence of morpholine, react with chlorothioformic dimethylamide with the formation of 2,2-dimethyl-5-oxo-4-(dimethylaminothiocarbonylthio)-1,3-thiazoline and 2-oxo-3-(dimethylaminothiocarbonylthio)-l-thia-4-azaspiro[4.5)dec-3-ene, respectively, and during acidolysis by hydrochloric acid they are converted to 2,2-dimethyl-5-oxo-4-thiono-1, 3-thiazolidine and 2-oxo-3-thiono-l-thia-4-azaspiro[4.5]decane. The latter compounds are facilely phosphorylated by dialkyl chlorophosphonates at the nitrogen atom. The reaction of the solvate of sodium cyanodithioformate with three molecules of dimethylformamide with chloroacetone in the presence of morpholine occurs anomalously with the formation of cyanothioformic morpholide.
WIPF, P.;HEIMGARTNER, H., TETRAHEDRON LETT., 1984, 25, N 45, 5127-5128
作者:WIPF, P.、HEIMGARTNER, H.
DOI:——
日期:——
WIPF P.; PREWO R.; BIERI J. H.; HEIMGARTNER H.; NASTOPOULOS V.; GERMAIN G+, HELV. CHIM. ACTA, 70,(1987) N 5, 1380-1388