再颁专利
USRE38796E1 Process for producing 3-amino-2-oxo-1-halogenopropane derivatives
失效
3-氨基-2-氧代-1-卤代丙烷衍生物的制备方法
- 专利标题: Process for producing 3-amino-2-oxo-1-halogenopropane derivatives
- 专利标题(中): 3-氨基-2-氧代-1-卤代丙烷衍生物的制备方法
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申请号: US09595173申请日: 2000-06-16
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公开(公告)号: USRE38796E1公开(公告)日: 2005-09-13
- 发明人: Yutaka Honda , Satoshi Katayama , Kunisuke Izawa , Masakazu Nakazawa , Takayuki Suzuki , Naoko Kanno
- 申请人: Yutaka Honda , Satoshi Katayama , Kunisuke Izawa , Masakazu Nakazawa , Takayuki Suzuki , Naoko Kanno
- 申请人地址: JP Tokyo
- 专利权人: Ajinomoto Co.,Inc.
- 当前专利权人: Ajinomoto Co.,Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权: JP7-299827 19951117
- 主分类号: C07C221/00
- IPC分类号: C07C221/00 ; C07C223/02 ; C07C227/16 ; C07C227/32 ; C07C229/22 ; C07C229/34 ; C07C269/06 ; C07C271/22 ; C07C319/20 ; C07C323/43
摘要:
Compounds formed by reacting a protected amino acid with an alkali metal enolate of an alkyl acetate are reacted with a halogenating agent for halogenation of the 2-position, or a protected amino acid is reacted with an alkali metal enolate of an alkyl halogenoacetate, to form a 4-amino-3-oxo-2-halogenobutanoic acid ester derivative, and hydrolysis and decarboxylation are conducted to produce a 3-amino-2-oxo-1-halogenopropane derivative or its salt. The present method is a useful process for producing a 3-amino-2-oxo-1-halogenopropane derivatives which can easily be converted to a 3-amino-1,2-epoxypropane.