CHROMOGENIC QUINAZOLINE COMPOUNDS, PROCESSES FOR THEIR PREPARATION AND THEIR USE AS COLOUR CONSTITUENTS IN PRESSURE-SENSITIVE OR HEAT-SENSITIVE RECORDING MATERIALS

摘要

Chromogenic quinazolines of the formula (1) wherein Y is an amino-substituted phenyl radical of the formula (1a) or a 3-carbazolyl radical of the formula (1b) and Z is hydrogen, R1, -OR1', -SR1' or -NR2R3, These compounds are particularly suitable for use as color formers in pressure-sensitive or heat-sensitive recording materials and give lightfast yellow, orange and red colorations.