| abstract |
PURPOSE: To produce the titled substance economically on an industrial scale, by reacting an aniline derivative with a nitrous acid ester and vinylidene chloride and reacting the resultant β.β,β-trichloroethylbenzene derivative with a mixture of SbF 3 and SbCl 5 , Cl 2 or SbF 5 . n CONSTITUTION: The objective compound of formula III can be produced by reacting a compound of formula I (R 1 is H, alkyl, alkoxy, NO 2 or CN; R 2 is H, halogen, alkyl, alkoxy, NO 2 or CN; R 3 is halogen; m is 0W3) with a nitrous acid ester and vinylidene chloride in the presence of a solvent and CuCl 2 , adding the resultant compound of formula II to a mixture of SbF 3 and SbCl 5 , Cl 2 or SbF 5 and reacting the components with each other at 40W70°C for 0.5W10hr. n USE: Intermediate for agricultural chemicals, pharmaceuticals, dyes, etc. n COPYRIGHT: (C)1987,JPO&Japio |