PESTICIDES COMPRISING THIOSEMICARBAZIDES

1,213,439. Thiosemicarbazides. FARBENFABRIKEN BAYER A.G. 3 June, 1969 [2 July, 1968], No. 27959/69. Heading C2C. [Also in Division A5] 1-Phenyl-4,4-dialkylthiosemicarbazides of formula wherein X is Cl, Br, Me or OMe; n is 0, 1, 2, or 3; and R, R1 are alkyl or alkenyl or R + R1 together with N form a...

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Bibliographic Details
Main Authors KLAUS SASSE, HANS SCHEINPFLUG, FERDINAND GREWE
Format Patent
LanguageEnglish
Published 25.11.1970
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:1,213,439. Thiosemicarbazides. FARBENFABRIKEN BAYER A.G. 3 June, 1969 [2 July, 1968], No. 27959/69. Heading C2C. [Also in Division A5] 1-Phenyl-4,4-dialkylthiosemicarbazides of formula wherein X is Cl, Br, Me or OMe; n is 0, 1, 2, or 3; and R, R1 are alkyl or alkenyl or R + R1 together with N form a 5 or 6 membered ring; may be prepared either (a) by reaction of 1- phenylhydrazine-2-dithiocarboxylic acid esters of formula wherein R11 is alkyl benzyl or carboxymethyl with amines of formula or (b) by reaction of phenyl hydrazines of formula with dithiocarbamic acid esters of formula Examples 1 and 2 give the m.p. of compounds prepared by method (a).
Bibliography:Application Number: GB19690027959