| 摘要 |
NEW MATERIAL:The compound of formula I (X is halogen; n is 1-8). EXAMPLE:The compound of formula II. USE:Intermediate of green colorant, dye and pigment for low-molecular substances such as mineral oil, liquid crystal, etc., or natural or synthetic polymers such as cellulose, polyester, etc. PREPARATION:The objective compound can be prepared e.g. by reacting 2,3- dichloronaphthazarin of formula III with o-aminothiophenol of formula IV, and halogenating the resultant compound of formula V in the presence of a solvent such as acetic acid, preferably at -10-+150 deg.C.
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