[EN] PROCESS FOR PREPARING 4-[[(BENZOYL)AMINO]SULPHONYL]BENZOYL CHLORIDES AND PREPARATION OF ACYLSULPHAMOYLBENZAMIDES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE CHLORURES DE 4-[[(BENZOYL)AMINO]SULFONYL]BENZOYLE ET D'ACYLSULFAMOYLBENZAMIDES
申请人:BAYER CROPSCIENCE AG
公开号:WO2015052156A1
公开(公告)日:2015-04-16
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)。