C - Chemistry – Metallurgy – 12 – P
Patent
C - Chemistry, Metallurgy
12
P
C12P 7/40 (2006.01) C07F 9/38 (2006.01) C12P 13/04 (2006.01)
Patent
CA 2163515
The invention provides a process for producing mixtures of glyoxylate and a dialkyl aminomethylphosphonate and the subsequent production of N-(phosphonomethyl)glycine, also known as glyphosate. The process comprises preparing in situ a mixture of glyoxylate and a dialkyl aminomethylphosphonate (DEAMPA) by enzymatically reacting glycolic acid (glycolate) and oxygen in an aqueous solution in the presence of a dialkyl aminomethylphosphonate and catalysts consisting of glycolate oxidase and catalase. The resulting mixture can be hydrogenated and then subjected to hydrolysis to produce N-(phosphonomethyl)glycine, a post-emergent phytotoxicant and herbicide.
L'invention se rapporte à un procédé de production de mélanges de glyoxylate et d'un aminométhylphosphonate de dialkyle, et à la production ultérieure de N-(phosphonométhyl)glycine, également appelée glyphosate. Le procédé consiste à préparer in situ un mélange de glyoxylate et d'aminométhylphosphonate de dialkyle (DEAMPA) par la mise en réaction enzymatique d'acide glycolique (glycolate) et d'oxygène dans une solution aqueuse en présence d'un aminométhylphosphonate de dialkyle, et de catalyseurs composés de glycolate-oxydase et catalase. Le mélange obtenu peut être hydrogéné puis hydrolysé afin de produire N-(phosphonométhyl)glycine, un poison végétal et un herbicide de postlevée.
Anton David Leroy
Dicosimo Robert
E. I. Du Pont de Nemours And Company
Sim & Mcburney
LandOfFree
Process for preparing glyoxylic acid/dialkyl... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for preparing glyoxylic acid/dialkyl..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing glyoxylic acid/dialkyl... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1781992