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公开(公告)号：US11897908B2
公开(公告)日：2024-02-13
申请号：US18180681
申请日：2023-03-08
申请人： BASF SE
发明人： Stephen Craig Fields , Matthew Richard Oberholzer , Brian Michael Green , Samir Kulkarni , Jennifer Nelson , Patricia Andres
摘要： Solid forms of L-glufosinate materials, including crystalline L-glufosinate ammonium, are described.
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公开(公告)号：US20240247013A1
公开(公告)日：2024-07-25
申请号：US18628116
申请日：2024-04-05
申请人： BASF SE
发明人： Stephen Craig Fields , Matthew Richard Oberholzer , Brian Michael Green , Samir Kulkarni , Jennifer Nelson , Patricia Andres
摘要： Compositions and methods for isolating L-glufosinate from a composition comprising L-glufosinate and glutamate are provided. The method comprises converting the glutamate to pyroglutamate followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The composition comprising L-glufosinate and glutamate is subjected to an elevated temperature for a sufficient time to allow for the conversion of glutamate to pyroglutamate, followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The glutamate alternatively may be converted to pyroglutamate by enzymatic conversion. The purified L-glufosinate is present in a final composition at a concentration of 90% or greater of the sum of L-glufosinate, glutamate, and pyroglutamate. In some embodiments, a portion of the glutamate in the starting composition may be separated from the L-glufosinate using a crystallization step. Solid forms of L-glufosinate materials, including crystalline L-glufosinate ammonium, are also described.
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公开(公告)号：US11976089B2
公开(公告)日：2024-05-07
申请号：US18180701
申请日：2023-03-08
申请人： BASF SE
发明人： Stephen Craig Fields , Matthew Richard Oberholzer , Brian Michael Green , Samir Kulkarni , Jennifer Nelson , Patricia Andres
摘要： Solid forms of L-glufosinate materials, including crystalline L-glufosinate ammonium, are described.
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公开(公告)号：US20230219984A1
公开(公告)日：2023-07-13
申请号：US18180681
申请日：2023-03-08
申请人： BASF SE
发明人： Stephen Craig Fields , Matthew Richard Oberholzer , Brian Michael Green , Samir Kulkarni , Jennifer Nelson , Patricia Andres
摘要： Compositions and methods for isolating L-glufosinate from a composition comprising L-glufosinate and glutamate are provided. The method comprises converting the glutamate to pyroglutamate followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The composition comprising L-glufosinate and glutamate is subjected to an elevated temperature for a sufficient time to allow for the conversion of glutamate to pyroglutamate, followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The glutamate alternatively may be converted to pyroglutamate by enzymatic conversion. The purified L-glufosinate is present in a final composition at a concentration of 90% or greater of the sum of L-glufosinate, glutamate, and pyroglutamate. In some embodiments, a portion of the glutamate in the starting composition may be separated from the L-glufosinate using a crystallization step. Solid forms of L-glufosinate materials, including crystalline L-glufosinate ammonium, are also described.
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公开(公告)号：US20230219985A1
公开(公告)日：2023-07-13
申请号：US18180724
申请日：2023-03-08
申请人： BASF SE
发明人： Stephen Craig Fields , Matthew Richard Oberholzer , Brian Michael Green , Samir Kulkarni , Jennifer Nelson , Patricia Andres
摘要： Compositions and methods for isolating L-glufosinate from a composition comprising L-glufosinate and glutamate are provided. The method comprises converting the glutamate to pyroglutamate followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The composition comprising L-glufosinate and glutamate is subjected to an elevated temperature for a sufficient time to allow for the conversion of glutamate to pyroglutamate, followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The glutamate alternatively may be converted to pyroglutamate by enzymatic conversion. The purified L-glufosinate is present in a final composition at a concentration of 90% or greater of the sum of L-glufosinate, glutamate, and pyroglutamate. In some embodiments, a portion of the glutamate in the starting composition may be separated from the L-glufosinate using a crystallization step. Solid forms of L-glufosinate materials, including crystalline L-glufosinate ammonium, are also described.
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公开(公告)号：US20240270770A1
公开(公告)日：2024-08-15
申请号：US18628186
申请日：2024-04-05
申请人： BASF SE
发明人： Stephen Craig Fields , Matthew Richard Oberholzer , Brian Michael Green , Samir Kulkarni , Jennifer Nelson , Patricia Andres
摘要： Compositions and methods for isolating L-glufosinate from a composition comprising L-glufosinate and glutamate are provided. The method comprises converting the glutamate to pyroglutamate followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The composition comprising L-glufosinate and glutamate is subjected to an elevated temperature for a sufficient time to allow for the conversion of glutamate to pyroglutamate, followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The glutamate alternatively may be converted to pyroglutamate by enzymatic conversion. The purified L-glufosinate is present in a final composition at a concentration of 90% or greater of the sum of L-glufosinate, glutamate, and pyroglutamate. In some embodiments, a portion of the glutamate in the starting composition may be separated from the L-glufosinate using a crystallization step. Solid forms of L-glufosinate materials, including crystalline L-glufosinate ammonium, are also described.
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公开(公告)号：US11897909B2
公开(公告)日：2024-02-13
申请号：US18180724
申请日：2023-03-08
申请人： BASF SE
发明人： Stephen Craig Fields , Matthew Richard Oberholzer , Brian Michael Green , Samir Kulkarni , Jennifer Nelson , Patricia Andres
摘要： Solid forms of L-glufosinate materials, including crystalline L-glufosinate ammonium, are described.
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公开(公告)号：US20230331749A1
公开(公告)日：2023-10-19
申请号：US18180701
申请日：2023-03-08
申请人： BASF SE
发明人： Stephen Craig Fields , Matthew Richard Oberholzer , Brian Michael Green , Samir Kulkarni , Jennifer Nelson , Patricia Andres
摘要： Compositions and methods for isolating L-glufosinate from a composition comprising L-glufosinate and glutamate are provided. The method comprises converting the glutamate to pyroglutamate followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The composition comprising L-glufosinate and glutamate is subjected to an elevated temperature for a sufficient time to allow for the conversion of glutamate to pyroglutamate, followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The glutamate alternatively may be converted to pyroglutamate by enzymatic conversion. The purified L-glufosinate is present in a final composition at a concentration of 90% or greater of the sum of L-glufosinate, glutamate, and pyroglutamate. In some embodiments, a portion of the glutamate in the starting composition may be separated from the L-glufosinate using a crystallization step. Solid forms of L-glufosinate materials, including crystalline L-glufosinate ammonium, are also described.
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公开(公告)号：US11634442B2
公开(公告)日：2023-04-25
申请号：US16631963
申请日：2018-07-17
申请人： BASF SE
发明人： Stephen Craig Fields , Matthew Richard Oberholzer , Brian Michael Green , Samir Kulkarni , Jennifer Nelson , Patricia Andres
摘要： Compositions and methods for isolating L-glufosinate from a composition comprising L-glufosinate and glutamate are provided. The method comprises converting the glutamate to pyroglutamate followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The composition comprising L-glufosinate and glutamate is subjected to an elevated temperature for a sufficient time to allow for the conversion of glutamate to pyroglutamate, followed by the isolation of L-glufosinate from the pyroglutamate and other components of the composition to obtain substantially purified L-glufosinate. The glutamate alternatively may be converted to pyroglutamate by enzymatic conversion. The purified L-glufosinate is present in a final composition at a concentration of 90% or greater of the sum of L-glufosinate, glutamate, and pyroglutamate. In some embodiments, a portion of the glutamate in the starting composition may be separated from the L-glufosinate using a crystallization step. Solid forms of L-glufosinate materials, including crystalline L-glufosinate ammonium, are also described.
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