| abstract |
a) reacting a compound of formula II, wherein R 1 is hydrogen, fluoro or chloro, with a nitrating agent to obtain a compound of formula III wherein R 1 is hydrogen, fluoro, or chloro; b) reacting the compound of formula (III) with trichloroisocyanuric acid in the presence of sulfuric acid or fuming sulfuric acid to obtain a compound of formula (IV), wherein R 1 is hydrogen, fluoro or chloro; And c) reacting a compound of formula (III) with a chlorine gas at a temperature of 180 ° C to 250 ° C to obtain a compound of formula (I) wherein R 1 is hydrogen, fluoro or chloro. And a method for producing the same. (I) ≪ RTI ID = 0.0 & (III) (IV) |