Methods of preparing glufosinate

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12252501
APP PUB NO 20240116960A1
SERIAL NO

18307911

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed is a method of preparing glufosinate, and specifically a method of preparing glufosinate represented by formula (I) or its salt or enantiomer, or a mixture of its enantiomers in any ratio, comprising a step of hydrolyzing a compound of formula (III) to generate a compound of formula (I). Due to a distinctive reaction mechanism adopted in the method of the present disclosure, a halogenated hydrocarbon by-product in the Michaelis-Arbuzov reaction can be avoided and thus the destructive impact of the halogenated hydrocarbon by-product on ozone in the aerosphere can be prevented. Accordingly, the equipment and engineering investments required for the separation, purification, and collection of the foregoing by-product are eliminated, and the potential environmental and safety hazards brought by the foregoing by-product are also avoided.

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Patent Owner(s)

  • YONGNONG BIOSCIENCES CO., LTD.; NINGXIA YONGNONG BIOSCIENCES CO., LTD.

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Nan Zhejiang, CN 342 1421
Mao, Chunhui Zhejiang, CN 1 0
Tang, Wenjie Zhejiang, CN 5 7
Tang, Xianzhong Zhejiang, CN 1 0
Wu, Chengjun Zhejiang, CN 8 3
Xu, Jianjie Zhejiang, CN 1 0

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