BENZIMIDAZOLO-CHINAZOLINE

Benzimidazolo-quinazolines of the general formula (I) in which Y denotes a radical of the formula (IIa) (IIb) or (IIc) Y1 denotes hydrogen or alkyl, X and X1, independently of one another, denote hydrogen, alkyl, cycloalkyl, aryl or aralkyl, or X and X1, together with the nitrogen atom connecting them, denote a 5- or 6-membered ring, X2 denotes hydrogen, halogen, alkyl, alkoxy or alkoxycarbonyl, X3 denotes hydrogen, alkyl or aryl, X4 denotes hydrogen, cyano, halogen, alkyl or alkoxy, Z denotes hydrogen, alkyl, cycloalkyl or aralkyl, D denotes an optionally hydrogenated 5- or 6-membered ring, and m and n, independently of one another, denote 0 or 1, in which a double bond is in the positions labelled with 1 and 2 when m=0 and a single bond is in these positions when m=1, and in which the rings A, B and D are the radicals X, X1, X2, X3, X4 and Z may carry non-ionic substituents which are conventional in dyestuffs chemistry, are used as color formers in pressure- and heat-sensitive recording materials.