| abstract |
Procedure for obtaining benzophenone derivatives, of general formula I, **(See formula)** and of its acid addition salts, in which R1 and R2 signifies hydrogen or a saturated or unsaturated alkyl moiety with 1 to 4 carbon atoms, R3 signifies the group -CN, -CONH2, -COOCh3, -COOC2H5, - COOH or COOMe, where Me means a metal cation, n means numbers 1 or 2 and m means numbers 1, 2 or 3 and nuclei A and B can be substituted, characterized in that a benzophenone derivative of general formula II, **(See formula)** it is reacted with a compound of general formula III, **(See formula)** in formulas II and III meaning one X or Y the rest (see formula) and the remaining X or Y means halogen, preferably a bromine or chlorine atom, under dissociation of H-Hal to a compound of general formula I. (Machine-translation by Google Translate, not legally binding) |