发明授权
US08008527B1 Octafluoropentaerythrityltetramine (octafluoro-peta) and process for its preparation
有权
八氟五季戊四醇(八氟 - peta)及其制备方法
- 专利标题: Octafluoropentaerythrityltetramine (octafluoro-peta) and process for its preparation
- 专利标题(中): 八氟五季戊四醇(八氟 - peta)及其制备方法
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申请号: US12496962申请日: 2009-07-02
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公开(公告)号: US08008527B1公开(公告)日: 2011-08-30
- 发明人: Robert D. Chapman , Richard A. Hollins
- 申请人: Robert D. Chapman , Richard A. Hollins
- 申请人地址: US DC Washington
- 专利权人: The United States of America as represented by the Secretary of the Navy
- 当前专利权人: The United States of America as represented by the Secretary of the Navy
- 当前专利权人地址: US DC Washington
- 代理商 Charlene A. Haley
- 主分类号: C07C291/00
- IPC分类号: C07C291/00
摘要:
A composition and method of manufacturing the same. Embodiments of an aspect of the invention relate to the formula C(CH2NF2)4 having the name octafluoropentaerythrityltetramine (octafluoro-PETA). In embodiments of another aspect generally relate to a method for manufacturing octafluoropentaerythrityltetramine (octafluoro-PETA) including, basifying pentaerythrityltetramine tetrahydrochloride in an aqueous solution with an aqueous alkali and treating with alkyl chloroformate for producing a tetraalkyl pentaerythrityltetra carbamate, extracting the compound into a nonaqueous solvent suitable for extraction from water and removing the solvent for providing a pure form of tetraethyl pentaerythrityltetracarbamate, bubbling elemental fluorine and/or mixtures of fluorine with an inert gas through tetraalkyl pentaerythrityltetracarbamate in a solvent suitable for direct fluorinations of protected amines until excess fluorine appears, and purifying the resultant octafluoropentaerythrityltetramine.