申请人:Mitsui Chemicals, Inc.
公开号:US06320078B1
公开(公告)日:2001-11-20
In the case that a selectively monoacylated phenylenediamine derivative which is useful as any of medicines, agricultural chemicals, animal drugs and the intermediates of chemicals is prepared by reacting a benzoic acid derivative with a phenylenediamine derivative, the benzoic acid derivative is converted into a benzoyl imidazole derivative and this benzoyl imidazole derivative is then reaction with the phenylenediamine derivative, whereby the improvement of a preparation efficiency and the high selectivity of the monoacylation can be achieved, the steps of protection and deprotection being omitted.
在一个选择性地单酰化的苯二胺衍生物的情况下,该衍生物作为药物、农药、兽药和化学品的中间体是有用的,通过将苯甲酸衍生物与苯二胺衍生物反应来制备,所述苯甲酸衍生物被转化为苯甲酰亚胺衍生物,然后这个苯甲酰亚胺衍生物再与苯二胺衍生物反应,通过这种方式可以实现在不进行保护和脱保护步骤的情况下提高制备效率和单酰化的高度选择性。