| 摘要 |
NEW MATERIAL:A compound expressed by formula I [R<1> and R<2> are H, halogen, OH, alkyl, alkoxy, cyano, nitro, alkoxycarbonyl, aryloxycarbonyl, mono--dialkylaminocarbonyl, alkylcarbonyloxy, arylcarbonyloxy, alkoxycarbonyloxy or aryloxycarbonyloxy; A is residue obtained by removing one H atom of an aromatic ring of a (substituted) aromatic amine]. EXAMPLE:A compound expressed by formula II. USE:An optical recording medium. PREPARATION:A compound formula III is condensed with cinnamic aldehydes expressed by formula IV [R<3> and R<4> are H, (substituted) 1-20C alkyl, (substituted) aryl, (substituted) allyl or (substituted) cyclohexyl]. |
