申请人:Kureha Kagaku Kogyu Kabushiki Kaisha
公开号:US05262543A1
公开(公告)日:1993-11-16
The present invention discloses a process to produce a compound of the formula (IA): ##STR1## or an acid addition salt or metal complex thereof, in which n represents an integer from 0 to 5; each R represents a halogen atom, or a nitro, cyano, alkyl, haloalkyl or phenyl group; R.sup.1 and R.sup.2 independently represent a hydrogen atom or an alkyl group; and A represents a nitrogen atom or a CH group; which comprises steps of: (1) reacting a compound of the formula (IVA): ##STR2## with a compound of the formula (V): R.sup.3 SO.sub.2 X (V) in which n, R, R.sup.1 and R.sup.2 are as defined above and R.sup.3 represents a C.sub.1-4 alkyl group or a phenyl group each optionally substituted by one or more substituents selected from halogen atoms, nitro, cyano, hydroxyl, C.sub.1-4 alkyl, C.sub.1-4 haloalkyl, C.sub.1-4 alkoxy, C.sub.1-4 haloalkoxy; amino, C.sub.1-4 alkylamino, di-C.sub.1-4 alkylamino, C.sub.1-4 alkoxycarbonyl, carboxyl, C.sub.1-4 alkanoyl, C.sub.1-4 alkylthio, C.sub.1-4 alkylsulphinyl, C.sub.1-4 alkylsulphonyl, carbamoyl, C.sub.1-4 alkylamido, C.sub.3-8 cycloalkyl and phenyl groups and X represents a halogen atom, in the presence of a base to obtain a compound of the formula (IIA); (2) reacting a compound of the formula (IIA): ##STR3## with a compound of the formula (III): ##STR4## in which n, R, R.sup.1, R.sup.2, R.sup.3 and A are as defined above and Q represents a hydrogen or alkali metal atom, in the presence of a base to obtain a compound of the formula (IA), and optionally converting the resulting compound of the formula (IA) into an acid addition salt or metal complex thereof.
本发明披露了一种制备式(I-A)化合物的方法:##STR1## 或其酸加成盐或金属络合物,其中n表示0至5的整数;每个R表示卤素原子,或者是硝基、氰基、烷基、卤代烷基或苯基;R1和R2分别表示氢原子或烷基;A表示氮原子或CH基。该方法包括以下步骤:(1)将式(IVA)化合物:##STR2## 与式(V)化合物反应:R3SO2X(V),其中n、R、R1和R2如上所定义,R3表示C1-4烷基或苯基,每个可以选择地被一个或多个取代基所取代,所述取代基被选择自卤素原子、硝基、氰基、羟基、C1-4烷基、C1-4卤代烷基、C1-4烷氧基、C1-4卤代烷氧基、氨基、C1-4烷基氨基、双C1-4烷基氨基、C1-4烷氧羰基、羧基、C1-4酰基、C1-4烷基硫基、C1-4烷基亚磺酰基、C1-4烷基磺酰基、氨基甲酰基、C1-4烷基酰胺基、C3-8环烷基和苯基,X表示卤素原子,存在碱的情况下,获得式(IIA)化合物;(2)将式(IIA)化合物:##STR3## 与式(III)化合物反应:##STR4## 其中n、R、R1、R2、R3和A如上所定义,Q表示氢或碱金属原子,在碱的存在下,获得式(I-A)化合物,并可将所得的式(I-A)化合物转化为其酸加成盐或金属络合物。