Invention Grant
- Patent Title: Method for producing phosphorus-containing α-keto acid
- Patent Title (中): 生产含磷α-酮酸的方法
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Application No.: US12530022Application Date: 2008-03-21
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Publication No.: US08017797B2Publication Date: 2011-09-13
- Inventor: Nobuto Minowa , Nozomu Nakanishi , Masaaki Mitomi
- Applicant: Nobuto Minowa , Nozomu Nakanishi , Masaaki Mitomi
- Applicant Address: JP Tokyo
- Assignee: Meiji Seika Kaisha Ltd.
- Current Assignee: Meiji Seika Kaisha Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2007-076541 20070323
- International Application: PCT/JP2008/055206 WO 20080321
- International Announcement: WO2008/117733 WO 20081002
- Main IPC: C07C67/00
- IPC: C07C67/00
Abstract:
A method for efficiently producing 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid, useful as a production intermediate of herbicide L-AMPB. The method comprises using a compound represented by the below formula (4): (4) where R1 represents a C1-4 alkyl group, arylmethyl group, or substituted arylmethyl group.
Public/Granted literature
- US20100063313A1 METHOD FOR PRODUCING PHOSPHORUS-CONTAINING ALPHA-KETO ACID Public/Granted day:2010-03-11
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