[C:1]([C:3]1[C:8]([Cl:9])=[CH:7][CH:6]=[CH:5][C:4]=1[S:10](Cl)(=[O:12])=[O:11])#[N:2].[CH3:14][NH2:15]>O>[CH3:14][N:15]1[C:1](=[NH:2])[C:3]2[C:8]([Cl:9])=[CH:7][CH:6]=[CH:5][C:4]=2[S:10]1(=[O:12])=[O:11]7.1 g of 2-cyano-3-chlorobenzenesulphonylchloride were added to a solution of 9 ml of methylamine in approx. 15 ml of water cooled at 0° C. After stirring at 0°-10° C. for 1 hour, the solid was sucked off, washed with water and dried in air. The desired product was obtained in a yield of 5,5 g; melting-point 140°-142° C.
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