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US06949677B2 Acetoacetylated N-phenyl-p-phenylenediamines 失效
乙酰乙酰化N-苯基 - 对苯二胺

Acetoacetylated N-phenyl-p-phenylenediamines
摘要:
Compounds of the general Formula: in which R1 and R2 are at each occurrence independently hydroxyl, C1-6-alkyl, C1-6-alkoxy, halogen, phenyl or phenoxy; R2 is hydroxyl, C1-6-alkyl, C1-6-alkoxy, halogen, phenyl or phenoxy; R3 is C1-6-alkyl; m is an integer from 0 to 4; and n is an integer from 0 to 5.
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