SYNTHESIS OF 2-THIOXO-4-OXOPERHYDRO-1,3-THIAZINES BY THE REACTION OF α,β-UNSATURATED ACID CHLORIDES WITH THE SALTS OF DITHIOCARBAMIC ACID AND ITS N-SUBSTITUTED DERIVATIVES
The reaction of α,β-unsaturated acid chlorides with unsubstituted and N-substituted sodium (or ammonium) dithiocarbamates is a convenient method for the synthesis of 6- and 3-substituted propiorhodanines.It was discovered that there is a tautomeric equilibrium between the S- and N-acryl isomers formed during the reaction.
Krus, K.,Masias, A.,Beletskaya, I. P.
p. 1819 - 1823
(2007/10/02)
REACTION OF α, β-UNSATURATED ACYL ISOTHIOCYANATES WITH SALTS OF DITHIOCARBAMIC ACIDS
The reaction of unsaturated isothiocyanates with the sodium and calcium salts of N-alkyl- and N,N-dialkyldithiocarbamic acids was studied.Depending on the structure of the dithiocarbamate, the reaction products are thiazines or acyl dithiocarbamates.For the salts of methyldithiocarbamic acid the effect of the concentration and the nature of the metal on the relative yields of 6-phenyl-3-methylpropiorhodanine and 6-phenylpropiorhodanine was studied.A method is proposed for the synthesis of 3-substituted propiorhodanines.
Krus, K.,Masias, A.,Beletskaya, I. P.
p. 1421 - 1425
(2007/10/02)
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