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公开(公告)号：US11161840B2
公开(公告)日：2021-11-02
申请号：US16306180
申请日：2017-05-26
Applicant: Bayer CropScience Aktiengesellschaft
Inventor： Stefan Antons , Martin Littmann , Joerg Schulz , Wahed Ahmed Moradi , Thomas Geller
IPC: C07D417/06
Abstract: The present invention relates to a process for producing compounds of formula (I) in which R1, A, X and Z are as defined in the description by reaction of compounds of formula (II) or salts thereof with 2-chloro-5-chloromethylpyridine in a nonpolar aliphatic or aromatic solvent, preferably in the presence of a phase transfer catalyst.
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公开(公告)号：US10316048B2
公开(公告)日：2019-06-11
申请号：US15756356
申请日：2016-08-30
Applicant: BAYER CROPSCIENCE AKTIENGESELLSCHAFT
Inventor： Hans-Joachim Ressel , Kilian Tellmann , Mark James Ford , Martin Littmann , Günter Schlegel
Abstract: The present invention primarily relates to a process for producing certain phosphorus-containing cyanohydrin esters of formula (I) and the use thereof for producing glufosinate/glufosinate salts. The present invention further relates to a process for producing glufosinate/glufosinate salts.
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公开(公告)号：US09850263B2
公开(公告)日：2017-12-26
申请号：US15310566
申请日：2015-05-08
Applicant: BAYER CROPSCIENCE AKTIENGESELLSCHAFT
Inventor： Hans-Joachim Ressel , Kilian Tellman , Mark James Ford , Martin Littmann , Friedrich August Muehlthau , Guenter Schlegel
CPC classification number: C07F9/3211 , C07F9/301
Abstract: The present invention relates primarily to a process for preparing certain phosphorus-containing cyanohydrins of the formula (I), and also to certain phosphorus-containing cyanohydrins per se and to their use for the preparation of glufosinate and/or glufosinate salts. The present invention further relates to certain mixtures particularly suitable for preparing the phosphorus-containing cyanohydrins of the formula (I).
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Patent Agency Ranking
公开(公告)号：US11339137B2
公开(公告)日：2022-05-24
申请号：US17045069
申请日：2019-04-02
Inventor： Taraneh Farida , Martin Littmann , Ali Sanli , Kyra Larissa Pabst , Juergen Ludwig , Albert Schnatterer
IPC: C07D275/03
Abstract: The present invention relates to a novel, one-stage method for preparing and isolating 3,4-dichloro-N-(2-cyanophenyl)-5-isothiazolecarboxamide (isotianil), which has microbicidal and plant-fortifying (host defence inducer) properties. In the method according to the invention, the amount of waste from the production process (e.g. solvent) is significantly reduced. The product is provided in high yield and purity (minimal amount of by-products and impurities). Compared to existing preparation methods, the method according to the invention has the advantage of low corrosiveness and high yield and high selectivity.
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5.发明授权公开(公告)号：US10577320B2
公开(公告)日：2020-03-03
申请号：US16098138
申请日：2017-04-26
Applicant: Bayer CropScience Aktiengesellschaft
Inventor： Taraneh Farida , Martin Littmann , Rafael Warsitz , Michael Esser , Albert Schnatterer
IPC: C07D201/08 , C07D207/38 , C07D201/02
Abstract: The present invention relates to novel methods for preparing cis-alkoxy-substituted spirocyclic 1-H-pyrrolidine-2,4-dione derivatives and also to novel intermediates and starting compounds, which are passed through or used in the method according to the invention.
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公开(公告)号：US10196410B2
公开(公告)日：2019-02-05
申请号：US15756174
申请日：2016-08-29
Applicant: BAYER CROPSCIENCE AKTIENGESELLSCHAFT
Inventor： Hans-Joachim Ressel , Kilian Tellmann , Mark James Ford , Martin Littmann , Günter Schlegel
Abstract: The present invention primarily relates to a process for producing certain phosphorus-containing cyanohydrin esters of formula (I) and the use thereof for producing glufosinate/glufosinate salts. The present invention further relates to a process for producing glufosinate/glufosinate salts.
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7.发明授权公开(公告)号：US09670135B2
公开(公告)日：2017-06-06
申请号：US15103110
申请日：2014-12-08
Applicant: BAYER CROPSCIENCE AKTIENGESELLSCHAFT
Inventor： Johann Seeba , Günter Schlegel , Martin Littmann , Rafael Warsitz , Mark James Ford
IPC: C07C209/08 , C07C209/04 , C07C209/84 , C07C209/14
CPC classification number: C07C209/08 , C07C209/04 , C07C209/14 , C07C209/84 , C07C211/29
Abstract: The present invention relates to a novel process for preparing halogenated di-substituted benzylamines, particularly halogenated dialkylbenzylamines.
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公开(公告)号：US09464038B2
公开(公告)日：2016-10-11
申请号：US14892114
申请日：2014-05-20
Applicant: BAYER CROPSCIENCE AKTIENGESELLSCHAFT
Inventor： Albert Schnatterer , Dieter Heinz , Martin Littmann , Ulrich Philipp , Juergen Ludwig , Constantin Frerick , Michael Barz
IPC: C07C249/08 , C07F9/09
CPC classification number: C07C249/08 , C07F9/09 , C07C251/48 , C07C251/36 , C07C251/44
Abstract: Method for preparing certain oximes and oxime O-methyl ethers by reacting poorly water-soluble carbonyl compounds with salts of hydroxylamine or hydroxylamine O-methyl ether or the free base of hydroxylamine in the presence of certain phosphoric esters or salts thereof of the formula (I) wherein R1, R2 and X are defined as specified in the description.
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