Patents Assigned to Lier Chemical Co., Ltd.
  • Method for preparing glufosinate or analogue thereof
    Patent number: 11932662
    Abstract: The present invention relates to a method for preparing glufosinate or an analogue and an intermediate thereof. The method comprises: a) reacting a compound of formula (II), an alcohol of formula (III) and a compound of formula (V); and b) hydrolyzing the product of the reaction above to obtain glufosinate of formula (IV) or an analogue thereof.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: March 19, 2024
    Assignee: LIER CHEMICAL CO., LTD.
    Inventors: Yongjiang Liu, Min Xu, Lei Zhou, Wei Zeng, Ke Cheng
  • Method for preparing glufosinate or analogues thereof
    Patent number: 11897907
    Abstract: The present invention relates to a method for preparing glufosinate or analogues thereof.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: February 13, 2024
    Assignee: LIER CHEMICAL CO., LTD.
    Inventors: Min Xu, Yongjiang Liu, Lei Zhou, Wei Zeng, Ke Cheng
  • Preparation method for glufosinate
    Patent number: 11680077
    Abstract: A preparation method for glufosinate or a salt thereof, an enantiomer thereof, or mixtures of the enantiomer thereof in all ratios, comprising reacting a compound of formula (II) or a salt, an enantiomer, or mixtures of the enantiomer in all ratios with one or more compounds of formula (III) or mixtures thereof.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: June 20, 2023
    Assignees: LIER CHEMICAL CO., LTD., GUANGAN LIER CHEMICAL CO., LTD.
    Inventors: Yongjiang Liu, Lei Zhou, Wei Zeng, Min Xu, Ke Cheng, Yingsui Yin
  • Method for preparing L-glufosinate
    Patent number: 11655265
    Abstract: Provided are a method for preparing L-glufosinate and the intermediate compounds of formula (V) and formula (III).
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: May 23, 2023
    Assignees: Lier Chemical Co., Ltd., Guangan Lier Chemical Co., Ltd
    Inventors: Yongjiang Liu, Jie Cai, Min Xu, Tingying Liu, Lei Zhou, Wei Zeng, Ke Cheng, Yingsui Yin