The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 1985
Filed:
Aug. 30, 1984
Applicant:
Inventor:
Sreeramulu Nagubandi, New City, NY (US);
Assignee:
Stauffer Chemical Company, Westport, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
2605 / ; 2604 / ;
Abstract
A process for preparing phosphonomethylated amino acids comprising phosphonomethylating an N-sulfonylglycine derivative with formaldehyde and a phosphorus source to obtain a phosphonomethylated N-sulfonylglycine derivative which is then hydrolyzed to the corresponding phosphonomethylated amino acid, e.g., glyphosate, or the acid derivative. The N-sulfonylglycine derivative can be prepared by reacting a sulfonic acid derivative with a haloacetic acid.
Quick Actions:
Nagubandi, Sreeramulu. (1985). Preparation of phosphonomethylated amino acids (U.S. Patent No. 4548758). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4548758
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