Mass spectrometric study of thiocarbamoyl-substituted 2-aminothiazoles and 2-iminothiazolines. 1. Aliphatic derivatives

Electron impact mass spectra of 10 thioureido derivatives of thiazole amino- and iminostructure are studied. The main difference between them appears in the ratio of peak heights of the 2-aminothiazolyl (2-iminothiazoline) and thiazolyl(thiazolinylidene)-2-isothiocyanate ions. A series of decay processes is revealed which occur through rearrangement in the thioureide chain and upon rupture of bonds in the heterocycle.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 547–552, April, 1989.