| 摘要 |
PCT No. PCT/EP93/03133 Sec. 371 Date Jun. 22, 1995 Sec. 102(e) Date Jun. 22, 1995 PCT Filed Nov. 9, 1993 PCT Pub. No. WO94/11466 PCT Pub. Date May 26, 1994Anilines of the formula <IMAGE> (I) where R1 and R2 are each hydrogen, unsubstituted or substituted alkyl, alkenyl or unsubstituted or substituted phenyl or R1 and R2, together with the nitrogen atom linking them are a heterocyclic radical or R1 may furthermore be unsubstituted or substituted hydroxyl or unsubstituted or substituted amino, R3 and R7 are each hydrogen, unsubstituted or substituted alkyl, alkenyl, cyano, nitro, acyl, acylamino, unsubstituted or substituted hydroxyl, unsubstituted or substituted carboxymethyl, unsubstituted or substituted amino, unsubstituted or substituted mercapto or unsubstituted or substituted sulfamoyl or, together with R2, are alkylene, alkenylene or phenylalkenylene, R4 is hydrogen, unsubstituted or substituted alkyl, alkenyl, unsubstituted or substituted hydroxyl, unsubstituted or substituted amino, unsubstituted or substituted carboxyl or unsubstituted or substituted sulfamoyl and R5 and R6 are each hydrogen, unsubstituted or substituted alkyl, alkenyl, unsubstituted or substituted phenyl, nitro, acylamino, unsubstituted or substituted hydroxyl, unsubstituted or substituted amino, unsubstituted or substituted sulfamoyl, alkyl-, alkenyl- or arylsulfonyl, acyl or unsubstituted or substituted carboxyl, with the proviso that at least one of the radicals R3, R5 or R7 is hydrogen, are used for marking mineral oils, and the above-mentioned anilines are detected in mineral oils. |
