| 摘要 |
NEW MATERIAL:A compound shown by formula I [X1-X4 are H, Cl or Br; Y is H, Cl or 1-2C alkyl; R is 1-6C alkyl, aryl or group shown by formula II (n is 1 or 2); Z is group shown by formula III or formula IV; with the proviso that at least two of X1-X4 are H but four X1-X4 are not H at the same time)]. EXAMPLE:A compound shown by formula V. USE:Dye for dyeing hydrophilic fibers, especially polyester fibers. PREPARATION:A 2-aminobenzothiazole derivative shown by formula VI is diazotized in a mineral acid or a mixture of the mineral acid and an organic acid by well-known method and coupled with a compound shown by formula VII.
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