| 摘要 |
NEW MATERIAL:The compound of formula I {X is group of formula II or III [R5-R8 are H, (substituted) alkyl, (substituted) alkoxy, OH, halogen, etc.; R9 is (branched) alkylene, etc.; R10 and R11 are (substituted) alkyl; R12-R17 are H or alkyl]; Y is -CO-, -C[=C(CN)2]- or SO2-; R1-R4 are H, (substituted) alkyl, (substituted) alkoxy, halogen, nitro, cyano, OH, (substituted) amino, etc.]. EXAMPLE:The compound of formula IV. USE:An optical information recording medium. It has high absorbance and reflectance to laser light and is stable against light, heat, etc. PREPARATION:A compound of formula V is made to react with a compound of formula O=N-X-N=0. |
