| 摘要 |
NEW MATERIAL:A compound shown by the formula I [X is nitro, or amino; A is group shown by the formula II, or III (R1 is H, methoxy, methyl, OH, nitro; R2 is H, methyl, methoxy, acetylamino, etc.; R3 is H, methoxy, or ethoxy; n is 0, or 1); Y is (methyl)amino, acetylamino, N-methyl-N-acetylamino(substituted) phenylamino, etc.; with the proviso that Y is bonded to 6-7 position of naphthalene nucleus, when X is nitro, cases where R1 is methoxy, ethoxy, R2 is H, methyl, methoxy, etc. and Y is (methyl)amino, phenylamino, etc. are omitted], and its copper complex compound. EXAMPLE:A compound shown by the formula IV. USE:For preparing polarizing film. Having improved sublimation resistance and heat stability. PREPARATION:A compound shown by the formula V is diazotized, and coupled with a compound shown by the formula VI, etc. to give a monoazo compound shown by the formula VII. This compound is further diazotized, and coupled with a compound shown by the formula VII, to give a compound shown by the formula I (X is nitro).
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