Processing of color photographic silver halide materials

A development intensification process for processing color photographic silver halide materials, the silver halide emulsions of which contain more than 90 mol-% of AgCl and less than 0.8 g of silver halide per m.sup.2 (stated as the equivalent quantity of AgNO.sub.3), which comprises at least one compound of the formula (II) as the developer substance:

• ##STR8## in which R.sub.10 means C.sub.1 -C.sub.4 alkyl or alkoxy,
• R.sub.11, R.sub.14, R.sub.15 mutually independently mean hydrogen, C.sub.1 -C.sub.4 alkyl, OH, COOH, SO.sub.3 H, alkoxy, sulphamoyl, ureido, acylaminosulphonyl, or sulphonylaminocarbonyl,
• n means 2 or 3,
• and wherein the total concentration of compounds of the formula (I) and (II) in the developer solution is 0.002 to 0.04 mol/l.