| abstract |
1452448 2 - Amino - 1,3 - thiazine derivatives BAYER AG 9 May 1975 [1 June 1974] 19626/75 Heading C2C Novel 2-amino-1,3-thiazines of the formula in which R<SP>1</SP> is an optionally substituted carbocyclic or heterocyclic aromatic radical and R<SP>2</SP> is hydrogen, alkenyl, alkyl, or an optionally substituted carbocyclic aromatic radical, and acid addition salts thereof are used as plant protection agents for combating fungi and bacteria. They may be prepared by reacting a #-halogenoethyl-ketone of the formula where Hal is a halogen atom, with a thiourea of the formula |