Abstract: Method of producing compounds of formula wherein R1 is hydrogen or C1-C4-alkyl; R2 is hydrogen, C1-C8-alkyl, C3-C6-cycloalkyl, or a radical —N(R3)R4; or R2 and R6 together are —CH2—CH2—S—; R3 and R4 are hydrogen, C1-C4-alkyl, C3-C6-cycloalkyl or a radical —CH2B; R6 is hydrogen, C1-C8-alkyl, aryl or benzyl; or R3 and R6 together are —CH2—CH2—, —CH2—CH2—CH2—, —CH2—O—CH2—, —CH2—S—CH2— or —CH2—N(R5)—CH2—; X is CH—CN; CH—NO2 or N—NO2; A is an optionally substituted, aromatic or non-aromatic, monocyclic or bicyclic heterocyclic radical; and B is optionally substituted phenyl, 3-pyridyl or thiazolyl; characterised in that a compound of formula wherein R2, R6 and X have the same significance as given above in formula (I), is reacted in the presence of a phase transfer catalyst and a base with a compound of f

Abstract: Method of producing compounds of formula 1

Abstract: The invention relates to a process for the preparation of substituted 3-amninobenzonitriles, which comprises reacting the appropriate substituted 3-aminochlorobenzene with a cyano-donating reagent, and to the compounds thereby produced. The compounds are intermediates, which after further reaction, produce 1,2,3-benzothiadiazole-derivatives having plant immunizing properties.