Process for preparing 4-[[(benzoyl)amino]sulphonyl]benzoyl chlorides and for preparing acylsulphamoylbenzamides Process for preparing 4-[[(benzoyl)amino]sulphonyl]benzoyl chlorides of the fornnula (II), proceeding from ortho-methoxybenzoic acid compounds of the formula (III) and 4- sulphamoylbenzoic acid compounds of the formula (IV), and processes for preparing the compound (lb), used in agriculture as a safener, cyprosulphamide (A/-[4-(cyclopropylcarbamoyl)phenylsulphonyl]-2- methoxybenzamide).
制备4-[(苯甲酰)
氨基磺酰基]
苯甲酰氯和制备酰基磺酰基苯甲酰胺的方法。制备4-[(苯甲酰)
氨基磺酰基]
苯甲酰氯的步骤如下,从式(III)的
邻甲氧基苯甲酸化合物和式(IV)的4-磺酰基
苯甲酸化合物出发,以及用于农业中作为安全剂的化合物(lb)的制备方法,这种化合物是环丙基磺酰胺(A/-[4-(环丙基
氨甲酰)苯基磺酰]-2-
甲氧基苯甲酰)。