| 摘要 |
NEW MATERIAL:A compound of formula I [R1-R4 are H, halogen, lower alkoxy, 1-8C alkyl, cycloalkyl, benzyl or phenyl (these benzyl or phenyl may have substituent group such as halogen, lower alkyl, etc.) or R1 and R2 or R3 and R4 may together with the ring A form a naphthalene ring; R5-R8 are halogen or lower alkyl; n, p, q and r are 0-2; B1-B3 are H, methyl, ethyl or benzyl]. EXAMPLE:3-[4'-(4''-Phenylaminophenylamino)phenylamino]-6-methyl-7-chlo rofluo ran. USE:Color-developing recording material. PREPARATION:1mol of an m-aminophenol derivative of formula II (R15 is H, lower alkyl or acyl) is made to react with 1mol of a benzoic acid derivative of formula III (R16 is H or lower alkyl). |
