Reactions of sodium derivatives of 2- and 3-thenoylacetaldehydes with cyanothioacetamide gave 2- and 3-cyano-6-thienylpyridine-2(1 H )-thiones, which were used in the synthesis of substituted 2-alkylthiopyridines, thieno[2,3- b ]pyridines, and other fused heterocycles.

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As the result of a radical reaction between tetrachloroethylene and aliphatic alcohols in liquid phase, not only products of the substitution of hydrogen at theα-C atom of the alcohol for the trichlorovinyl group, but also isomers with a trichlorovinyl group at other C atoms, preferably in theω-1 position, are formed.

AbstractBei der Einwirkung von Methanol (I) auf Tetrachlorethylen (II) in Gegenwart von Di‐tert.‐butylperoxid unter Normal‐ oder erhöhtem Druck entsteht in einer Radikalreaktion Trichlorallylalkohol (IV) als Hauptprodukt.

The reaction of tetrachloroethylene with methanol initiated by di-t-butyl peroxide forms trichloroallyl alcohol, which inhibits this process. The inhibitory effect increases with the concentration of trichloroallyl alcohol.

A method was developed for the preparation of trichloroallyl alcohol from methanol and tetrachloroethylene in a titanium apparatus under a pressure of 100–120 atm in the presence of CC14 (335°), CH3COC2H5 (365°) or (CH3)3COOC (CH3)3 (185°), in a yield of 35–55% when based on starting TCE and 85–90% when based on reacted TCE, with a reactor output of up to 1000 g/h liter.

The high-temperature condensation of tetrachloroethylene with methanol is initiated by polychloroorganic and carbonyl compounds.