发明名称 |
Process for the selective destruction, by reduction, of p-coupled products of the 1-naphthol series |
摘要 |
Para-coupled products of the 1-naphthol series can be destroyed in the presence of the ortho-coupled product by reduction with salts of dithionous acid or of hydroxymethanesulphinic acid or with hydrazine optionally in the presence of redox-catalysts.
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申请公布号 |
US4101542(A) |
申请公布日期 |
1978.07.18 |
申请号 |
US19760745400 |
申请日期 |
1976.11.26 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
KRAMER, ERICH |
分类号 |
C09B29/16;C09B29/15;C09B31/08;C09B35/16;C09B41/00;C09B43/08;(IPC1-7):C09B29/00;C09B46/00 |
主分类号 |
C09B29/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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