| abstract |
NEW MATERIAL:Aminopyrimidineazomethine compd. of formula I (wherein R 1 is an alkyl, an aryl or a heterocyclic group; R 2 and R 3 are each H, a halogen, an alkyl, an aryl, an alkoxy, an aryloxy, a heterocyclic oxy, an alkylthio, an arylthio, a heterocyclic thio or amino; R 4 is an aryl). n EXAMPLE: A compd. wherein R 1 in formula I is a group of formula II, R 2 and R 3 are each a group of formula III and R 4 is a group of formula IV. n USE: An image forming pigment with excellent fastness to heat for color photograph, ink jet process, printing, etc., or a filter dye for a photosensitive material for color photograph and color liquid crystal television. n PREPARATION: The compd. of formula I is prepd. by oxidative coupling reaction of an aminopyrimidine with a p-phenylene-diamine or a p-aminophenol. n COPYRIGHT: (C)1990,JPO&Japio |