| 摘要 |
The invention relates to novel triphendioxazine pigments of formula (I) wherein X represents hydrogen or chlorine, while R1 represents phenyl substituted by one to five radicals from the group comprising C1-C4-alkyl, halogen, C1-C4-alkoxy, acetylamino, aminocarbonyl, methylaminocarbonyl and C1-C4-alkoxycarbonyl, or phenyl annelated in the 2,3- or 3,4- with a divalent radical of the formula -NH-(CO)m-NR2-, -CR2-CH-CO-NH-, -CR2-N-CO-NH-, -CO-NH-CO-NR2-, -CO-(NH)m-CO- or -O-(CO)m-NH- so as to form a five- or six-membered ring, R2 representing hydrogen, methyl, ethyl or phenyl and m representing 1 or 2.
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