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公开(公告)号：US20230399348A1
公开(公告)日：2023-12-14
申请号：US18299605
申请日：2023-04-12
Applicant: Lier Chemical Co., Ltd. , Guangan Lier Chemical Co., Ltd.
Inventor： Yongjiang Liu , Jie Cai , Min Xu , Tingying Liu , Lei Zhou , Wei Zeng , Ke Cheng , Yingsui Yin
IPC: C07F9/30 , C07F9/48 , C07F9/50 , C07F9/535 , C07F9/6584
CPC classification number: C07F9/301 , C07F9/4883 , C07F9/5004 , C07F9/535 , C07F9/65844
Abstract: Provided are a method for preparing L-glufosinate and the intermediate compounds of formula (V) and formula (III).
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公开(公告)号：US11655265B2
公开(公告)日：2023-05-23
申请号：US17841410
申请日：2022-06-15
Applicant: Lier Chemical Co., Ltd. , Guangan Lier Chemical Co., Ltd.
Inventor： Yongjiang Liu , Jie Cai , Min Xu , Tingying Liu , Lei Zhou , Wei Zeng , Ke Cheng , Yingsui Yin
IPC: C07F9/30 , C07F9/48 , C07F9/50 , C07F9/535 , C07F9/6584
CPC classification number: C07F9/301 , C07F9/4883 , C07F9/5004 , C07F9/535 , C07F9/65844
Abstract: Provided are a method for preparing L-glufosinate and the intermediate compounds of formula (V) and formula (III).
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公开(公告)号：US20220324888A1
公开(公告)日：2022-10-13
申请号：US17841410
申请日：2022-06-15
Applicant: Lier Chemical Co., Ltd. , Guangan Lier Chemical Co., Ltd.
Inventor： Yongjiang Liu , Jie Cai , Min Xu , Tingying Liu , Lei Zhou , Wei Zeng , Ke Cheng , Yingsui Yin
IPC: C07F9/30 , C07F9/535 , C07F9/6584 , C07F9/50
Abstract: Provided are a method for preparing L-glufosinate and the intermediate compounds of formula (V) and formula (III).
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公开(公告)号：US11680077B2
公开(公告)日：2023-06-20
申请号：US17610051
申请日：2021-01-20
Applicant: LIER CHEMICAL CO., LTD. , GUANGAN LIER CHEMICAL CO., LTD.
Inventor： Yongjiang Liu , Lei Zhou , Wei Zeng , Min Xu , Ke Cheng , Yingsui Yin
IPC: C07F9/30
CPC classification number: C07F9/301
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.
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公开(公告)号：US12145957B2
公开(公告)日：2024-11-19
申请号：US18303613
申请日：2023-04-20
Applicant: LIER CHEMICAL CO., LTD.
Inventor： Yongjiang Liu , Lei Zhou , Wei Zeng , Min Xu , Ke Cheng
IPC: C07F9/54 , C07C237/06 , C07C323/32 , C07C323/59
Abstract: A preparation method for glufosinate or a salt, an enantiomer or a mixture of enantiomers in all ratios thereof, the method being especially suitable for the preparation of glufosinate, and greatly shortening steps in an existing preparation process. Especially in the preparation of L-glufosinate, the product can effectively retain the ee value of the raw materials.
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公开(公告)号：US11932662B2
公开(公告)日：2024-03-19
申请号：US18310054
申请日：2023-05-01
Applicant: LIER CHEMICAL CO., LTD.
Inventor： Yongjiang Liu , Min Xu , Lei Zhou , Wei Zeng , Ke Cheng
IPC: C07F9/30
CPC classification number: C07F9/301
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.
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公开(公告)号：US11897907B2
公开(公告)日：2024-02-13
申请号：US18301679
申请日：2023-04-17
Applicant: LIER CHEMICAL CO., LTD.
Inventor： Min Xu , Yongjiang Liu , Lei Zhou , Wei Zeng , Ke Cheng
IPC: C07F9/30
CPC classification number: C07F9/301
Abstract: The present invention relates to a method for preparing glufosinate or analogues thereof.
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公开(公告)号：US20230331750A1
公开(公告)日：2023-10-19
申请号：US18303613
申请日：2023-04-20
Applicant: LIER CHEMICAL CO., LTD.
Inventor： Yongjiang LIU , Lei Zhou , Wei Zeng , Min Xu , Ke Cheng
IPC: C07F9/54 , C07C237/06 , C07C323/32
CPC classification number: C07F9/5407 , C07C237/06 , C07C323/32
Abstract: A preparation method for glufosinate or a salt, an enantiomer or a mixture of enantiomers in all ratios thereof, the method being especially suitable for the preparation of glufosinate, and greatly shortening steps in an existing preparation process. Especially in the preparation of L-glufosinate, the product can effectively retain the ee value of the raw materials.
