10.4 Compounds of the formula Iq4 ##STR45## in which R6 ' is hydrazino or NR(R1) are prepared from the benzohydroxamic chlorides Iq' ##STR46## with an amine of the formula NR(R1) or hydrazine in an inert solvent at -40??? to +100??? C. Benzohydroxamic chlorides of the formula Iq' are obtained by chlorinating the corresponding aldoximes with a chlorinating agent, for example Cl2, in a suitable sol