发明授权
- 专利标题: Process for (1H)-isoindolin-1-one-3-carboxylic acid
- 专利标题(中): (1H) - 异吲哚啉-1-酮-3-羧酸的方法
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申请号: US902344申请日: 1986-08-29
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公开(公告)号: US4730056A公开(公告)日: 1988-03-08
- 发明人: John A. Lowe, III
- 申请人: John A. Lowe, III
- 申请人地址: NY New York
- 专利权人: Pfizer Inc.
- 当前专利权人: Pfizer Inc.
- 当前专利权人地址: NY New York
- 主分类号: C07D209/46
- IPC分类号: C07D209/46
摘要:
A process for preparing [1H]-isoindolin-1-one-3-carboxylic acid comprising the steps of (1) reacting phthalaldehydic acid in an alkanol with ammonia, (2) contacting the resulting solution with an alkali metal cyanide, (3) removing the alkanol, (4) adjusting the pH to 1.0, (5) heating the resulting reaction mixture until product formation is substantially complete and isolating the product.
公开/授权文献
- US4195935A Apparatus for treating materials containing cocoa butter 公开/授权日:1980-04-01
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