Abstract:
Production of 1,2-benzoisothiazoles by reacting dihalomethylaryl compounds with ammonia and elementary sulfur. The products are valuable starting materials for the production of dyes, rubber auxiliaries and oxidation inhibitors.
Abstract:
Production of dithiocarbamates by reacting halogenated methanes with elementary sulfur and secondary amines. The products are valuable starting materials for the production of herbicides, fungicides, insecticides, rubber auxiliaries, and stabilizers in the petroleum industry.
Abstract:
THE PRODUCTION OF AROMATIC DITHIOCARBOXYLIC ACIDS BY REACTION OF AROMATIC MONOHALOMETHYL COMPOUNDS WITH ELEMENTARY SULFUR AND ALKALI METAL OR ALKALINE EARTH METAL ALCOHOLATES. THE NEW PRODUCTS OF THE PROCESS ARE VALUABLE STARTING MATERIALS FOR THE PRODUCTION OF DYES AND PESTICIDES.
Abstract:
1,156,158. Hydroxy alkane- and alkenenitriles. BADISCHE ANILIN- & SODAFABRIK A.G. 16 Nov., 1966 [17 Nov., 1965], No. 51327/66. Heading C2C. Nitriles of hydroxyalkane- and hydroxyalkene-carboxylic acids, in which the hydroxy group is separated from the nitrile group by at least 6 carbons, are obtained by heating the corresponding hydroxyalkane- or hydroxyalkene-carboxylic acids, the ammonium salts or the amides thereof in the presence of at least 2 moles of ammonia per mole of acid or at least one mole of ammonia per mole of the ammonium salt or amide of the said acid to a temperature of 250-400‹ C. in the absence of dehydration catalysts at a pressure of 50-150 atmospheres. The ammonia is preferably used in an amount of 10-30 moles per mole of acid, ammonium salt or amide and water or steam may be added to the reaction mixture. In examples, 7-hydroxy-enanthic acid and ricinoleic acid are converted to the corresponding nitriles.