申请人:Sumitomo Chemical Company, Limited
公开号:US05484933A1
公开(公告)日:1996-01-16
There is disclosed a process for the production of a fluoroalkanecarboxamide derivative of the formula (I): ##STR1## wherein R.sup.1 is a halogen atom, an alkyl group substituted with at least one halogen atom or an alkoxyl group substituted with at least one halogen atom; R.sup.2 is a hydrogen atom or a halogen atom; and R.sup.3 is a methyl group, an ethyl group, a chlorine atom or a bromine atom; X and Y are the same or different and each of them represents a hydrogen atom, a chlorine atom, a fluorine atom or a trifluoromethyl group, with the proviso that X and Y do not simultaneously represent a hydrogen atom or a chlorine atom, which comprises the steps of: (a) reacting an iminothiazoline compound of the formula (II): ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are each as defined above, or a salt thereof with a fluoroolefin of the formula (III): XYC.dbd.CF.sub.2 (III) wherein X and Y are each as defined above, in the presence of a primary or secondary amine; and (b) reacting the resultant reaction mixture with water.
本发明揭示了一种制备式(I)的氟烷基羧酰胺衍生物的方法:其中,R1是卤原子,取代至少一个卤原子的烷基或取代至少一个卤原子的烷氧基;R2是氢原子或卤原子;R3是甲基,乙基,氯原子或溴原子;X和Y相同或不同,分别表示氢原子,氯原子,氟原子或三氟甲基基团,但X和Y不能同时表示氢原子或氯原子。该方法包括以下步骤:(a)在一级或二级胺的存在下,将式(II)的亚氨基噻唑化合物或其盐与式(III)的氟烯烃反应,其中X和Y如上所述;(b)将所得的反应混合物与水反应。