| 摘要 |
NEW MATERIAL:Compounds of formula I (wherein A is a group of formulas II-VI; R is H, an alkyl; n is 1-3; X is halogen). EXAMPLE:A composed of formula VII. USE:Coloring materials which color resins blue to green and have excellent bleed resistance. PREPARATION:A mixture of quinizarin and leucoquinizarin in an amount of 0.05-1mol as much as quinizarin is reacted with an amine of formula VIII in the presence of boric acid in a polar solvent at 70-150 deg.C.
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