| 摘要 |
<p>1,192,938. Xanthene derivatives. FUJI SHASHIN FILM K.K. 15 Nov., 1967 [18 Nov., 1966; 19 Nov., 1966 (2)], No. 52023/67. Heading C2C. [Also in Divisions C4 and D2] Colour couples of the formula in which R is methyl or ethyl; X may be hydrogen when Y is chlorine, methyl, ethyl, methoxy, ethoxy, benzyloxy, acetylamino, N- acetyl - N - methylamino, N - acetyl - N - ethylamino or N-acetyl-N-benzylamino; X may be methyl or ethyl when Y is chlorine; and X may be methoxy, ethoxy or benzyloxy when Y is hydrogen, are prepared by reaction of a 2- hydroxy - 4 - dialkylamino - 21 - carboxybenzophenone with a substituted phenol.</p> |
