发明公开
EP0082394A2 A process for the production of aminophthalides and amino benzoic acids
失效
一种用于制备和Aminophtalid氨基苯甲酸处理。
- 专利标题: A process for the production of aminophthalides and amino benzoic acids
- 专利标题(中): 一种用于制备和Aminophtalid氨基苯甲酸处理。
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申请号: EP82111280.2申请日: 1982-12-06
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公开(公告)号: EP0082394A2公开(公告)日: 1983-06-29
- 发明人: Schmidt, Paul Joseph , Jefferies, Patrick Joseph
- 申请人: STERLING DRUG INC.
- 申请人地址: 90 Park Avenue New York New York US
- 专利权人: STERLING DRUG INC.
- 当前专利权人: STERLING DRUG INC.
- 当前专利权人地址: 90 Park Avenue New York New York US
- 代理机构: Baillie, Iain Cameron
- 优先权: US328918 19811209
- 主分类号: C07D307/88
- IPC分类号: C07D307/88 ; C07C101/54 ; C09B11/24
摘要:
Process comprises the combination of the two steps of condensing Y-benzaldehyde with NR 2 R 3- aniline and 3-NRR 1 - benzoic acid, under acidic conditions to produce 2-[Y-phenyl) (4-NR 2 R 3 -aminophenyl)methyl]-5-NRR 1 -aminobenzoic acid, and oxidizing said benzoic acid to produce 3-(Y-phenyl)-3-(4-NR 2 R 3- aminophenyl)-6-NRR 1 -aminophthalide.
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