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Preparation of N-phosphonomethyl glycine

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专利汇可以提供Preparation of N-phosphonomethyl glycine专利检索,专利查询,专利分析的服务。并且A herbicidal compound, N-phosphonomethyl glycine is prepared by reacting 1,3,5-tricyanomethyl-hexahydro-1,3,5,-triazine with a dihydrocarbyl hydrogen phosphite in the presence of a catalyst such as a Lewis acid to form an ester of N-phosphonomethylglyconitrile which ester is thereafter hydrolyzed and the desired N-phosphonomethyl glycine is recovered.,下面是Preparation of N-phosphonomethyl glycine专利的具体信息内容。

1. A PROCESS OF PROCESS OF PREPARING THE COMPOUND N-PHOSPHONOMETHYL GLYCINE, HAVING THE FORMULA:
2. A process according to claim 1 wherein the groups R1 and R2 each represent an alkyl radical of from 1 to 6 carbon atoms.
3. A process according to claim 1 wherein the catalyst comprises hydrogen chloride or hydrogen bromide.
4. A process according to claim 1 wherein the reaction of the 1, 3,5-tricyanomethylhexahydro-1,3,5-triazine with the phosphorous ester is carried out in a diluent comprising an excess of the phosphorous ester.
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