(Aminomethyl)phosphonic acid → Glyphosate
Reaction equation
[NH2:1][CH2:2][P:3](=[O:6])([OH:5])[OH:4].O.[C:8]([OH:12])(=[O:11])[CH:9]=O.[H][H]>>[CH2:9]([NH:1][CH2:2][P:3]([OH:5])([OH:4])=[O:6])[C:8]([OH:12])=[O:11]Participants
4
Procedure
Aminomethylphosphonic acid and glyoxylic acid hydrate were reacted under catalytic hydrogenation conditions in the manner described in Example 2, except prior to introduction of hydrogen, the pH was adjusted to 8.0. A 96% yield of glyphosate was obtained.
Sources & evidence
- ORD record
- ord-aa2d357ff23046789b5dfc6ba8ce96a7
- Source dataset
- uspto-grants-1999_02
- Patent number
- US05874612
Reaction notes
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