Synthesis of heterocycles from the products of the addition of polyhaloalkanes to unsaturated systems

4-Methyl-5-(2,2,2-trichloroethyl) derivatives of 2-thiazolethione and 2-amino-3-hydroxythiazolium chloride were synthesized from 3-thiocyanato-5,5,5-trichloro-2-pentanone. The structures of these derivatives were determined using spectral data and x-ray diffraction structural analysis.For Communication 7, see [1]N. D. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 117813. A. N. Nesmeyanov Institute of Heteroorganic Compounds, Russian Academy of Sciences Moscow 117813. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 832–838, June, 1998.