申请人:FBC Limited
公开号:US04546174A1
公开(公告)日:1985-10-08
There is described a process for the production of a compound of formula I, ##STR1## in which at least one each of R.sub.1, R.sub.2 and R.sub.3, and of R.sub.4, R.sub.5 and R.sub.6, represents an electron withdrawing group, or one of R.sub.1, R.sub.2 and R.sub.3 together with one of R.sub.4, R.sub.5 and R.sub.6 form a --CO-- group, and the remainder of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6, which may be the same or different, each represent an electron withdrawing group, alkyl, cycloalkyl, phenyl or phenylalkyl, or R.sub.1 and R.sub.2, or R.sub.4 and R.sub.5 , and R.sub.1 and R.sub.4, may together form a --(CH.sub.2).sub.n --chain, in which n is a whole number up to 5, the alkyl, cycloalkyl, phenyl or phenylalkyl group or the --(CH.sub.2).sub.n --chain optionally being substituted, which comprises reacting a compound of formula II, ##STR2## in which R.sub.1 a, R.sub.2 a and R.sub.3 a have the same significances as R.sub.1, R.sub.2, and R.sub.3 above, and some additional significances, with a compound of formula III, ##STR3## in which R.sub.4 a, R.sub.5 a and R.sub.6 a have the same significances as R.sub.4, R.sub.5 and R.sub.6 above, and some additional significances, the reaction being carried out in an aqueous medium in the presence of a base and a surfactant.
描述了一种生产化合物的过程,化学式为I,其中至少有R.sub.1、R.sub.2和R.sub.3中的每一个,以及R.sub.4、R.sub.5和R.sub.6中的一个,表示一个电子吸引基团,或者R.sub.1、R.sub.2和R.sub.3中的一个与R.sub.4、R.sub.5和R.sub.6中的一个形成一个--CO--基团,而R.sub.1、R.sub.2、R.sub.3、R.sub.4、R.sub.5和R.sub.6的其余部分,可能相同也可能不同,每个都代表一个电子吸引基团、烷基、环烷基、苯基或苯基烷基,或者R.sub.1和R.sub.2,或R.sub.4和R.sub.5,以及R.sub.1和R.sub.4,可以共同形成一个--(CH.sub.2).sub.n--链,其中n是一个最多为5的整数,烷基、环烷基、苯基或苯基烷基团或--(CH.sub.2).sub.n--链可选择性地被取代,包括将化学式为II的化合物与化学式为III的化合物反应,反应在水介质中,在碱和表面活性剂的存在下进行。