申请人:Sumitomo Chemical Company, Limited
公开号:US04803270A1
公开(公告)日:1989-02-07
A process is disclosed for producing a fluoroaniline derivative of the formula: ##STR1## wherein X is an oxygen atom or an imino group. The process includes reacting 1,5-dichloro-2,4-dinitrobenzene with a glycol derivative of the formula: Y--CH.sub.2 --XH (II) wherein X is defined above and Y is a cyano group, a carboxy group or a lower alkoxycarbonyl group to produce a chlorodinitrobenzene derivative of the formula: ##STR2## wherein X and Y are as defined above. The chlorodinitrobenzene derivative (III) is reacted with a metal fluoride to produce a fluorodinitrobenzene derivative of the formula: ##STR3## wherein X and Y are as defined above. The fluorodintrobenzene derivative (IV) is subjected to reductive cyclization to obtain the fluoroaniline derivative (I).
揭示了一种制备氟苯胺衍生物的过程,其化学式为:##STR1##其中X是一个氧原子或一个亚胺基团。该过程包括将1,5-二氯-2,4-二硝基苯与化学式为Y-CH.sub.2-XH(II)的甘醇衍生物反应,其中X如上所定义,Y是一个氰基、一个羧基或一个低碳酰氧基团,以产生化学式为:##STR2##其中X和Y如上定义。将氯二硝基苯衍生物(III)与金属氟化物反应,以产生氟二硝基苯衍生物,其化学式为:##STR3##其中X和Y如上定义。将氟二硝基苯衍生物(IV)进行还原环化反应,以获得氟苯胺衍生物(I)。