发明授权
- 专利标题: Preparation of pyridine dyes
- 专利标题(中): 制备吡啶染料
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申请号: US682626申请日: 1996-07-30
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公开(公告)号: US5703238A公开(公告)日: 1997-12-30
- 发明人: Ernst Schefczik , Sabine Gruttner-Merten , Peter Saling , Rudiger Sens , Helmut Reichelt
- 申请人: Ernst Schefczik , Sabine Gruttner-Merten , Peter Saling , Rudiger Sens , Helmut Reichelt
- 申请人地址: DEX Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DEX Ludwigshafen
- 优先权: DEX4402083.5 19940202
- 主分类号: C07D471/04
- IPC分类号: C07D471/04 ; C09B55/00 ; C09B25/04
摘要:
Methine or azamethine dyes are prepared on the basis of pyridine dyes by condensing an oxime- or formyl-pyridine or its tautomeric form with 5-membered aromatic heterocycles.
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