申请人:Minowa Nobuto
公开号:US20100063313A1
公开(公告)日:2010-03-11
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 R
1
represents a C
1-4
alkyl group, arylmethyl group, or substituted arylmethyl group.