| 摘要 |
NEW MATERIAL:A compound shown by the formula I [R1 is lower alkenyl, or lower alkynyl; R2 is cyclopentyl, cyclohexyl(methyl), cycloheptyl etc.; R3 and R4 are H, (halogen, alkoxyl, cyano-substituted) 1-18C alkyl, (halogen, lower alkyl- (substituted)aralkyl, R3 and R4 are linked to form-N-heteroring, R4 is further substituted)aryl, etc.; X and Y are H, halogen, lower alkyl, and Y is further lower alkoxyl]. EXAMPLE:3-N-Allyl-N-cyclohexylamino-6-methyl-7-anilinofluoran. USE:A colorant for recording materials such as pressure-sensitive recording sheet, heat-sensitive recording sheet, electrically-conductive heat-sensitive recording sheet, etc. PREPARATION:A 2-(2-hydroxy-4-substituted amino)benzoylbenzoid acid derivative shown by the formula II is reacted with a p-aminophenol derivative shown by the formula III (R5 is H, or lower alkyl). |
