Basf Aktiengesellschaft

Karl Zoller

Hans Rupert Merkle

Albrecht Mueller

Dietmar Werner

Eberhard Auer

New and valuable process for the manufacture of 2,1,3-thiadiazin-4-one-2,2-dioxide derivatives by reaction of anthranilic acid amide or aminopyridine carboxamide derivatives with sulfur trioxide derivatives to give the sulfamic acid salts, followed by cyclization of these salts.

Manufacture of 2,1,3-thiadiazin-4-one-2,2-dioxide derivatives

Aluminum salts of N-nitroso-N-alkylhydroxylamines are produced by the reaction of an aluminum salt with an alkali metal salt, alkaline earth metal salt and/or ammonium salt of an N-nitroso-N-alkylhydroxyl-amine and/or the aftertreatment of an appropriate aluminum salt in the presence of water and an organic solvent. The products have fungicidal properties and are starting materials for the production of fungicides for wood preservatives, colored surface coatings, synthetic resins and dye formulations.

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Ludwigshafen, Germany

Karl Zoller