发明授权
- 专利标题: Synthetic method for the fluoromethylation of alcohols
- 专利标题(中): 醇的氟甲基化合成方法
-
申请号: US09587414申请日: 2000-06-01
-
公开(公告)号: US06245949B1公开(公告)日: 2001-06-12
- 发明人: Christopher Bieniarz , Kornepati V. Ramakrishna
- 申请人: Christopher Bieniarz , Kornepati V. Ramakrishna
- 主分类号: C07C4101
- IPC分类号: C07C4101
摘要:
A method for fluoromethylating halogenated alcohols. The method includes the step of providing an alpha-halogenated alcohol of the formula R1C(CX3)2OH, wherein R1 is selected from the group consisting of hydrogen and alkyl groups. The alpha-halogenated alcohol is reacted with a first compound of the formula CH2(OR2)2 in the presence of an acid catalyst to form an acetal. The resulting acetal is then chlorinated with a chlorinating agent to form a chloride compound of the formula R1C(CX3)2OCH2Cl. The chloride compound is then converted to a fluoride compound of the formula R1C(CX3)2OCH2F using a fluorinating agent.
信息查询