Patents by Inventor Tomas Smejkal
Tomas Smejkal has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11369113Abstract: The present inventions concerns use of a specific methoxyacrylate compound to control mosquitoes, and vector control products comprising that methoxyacrylate compound, in particular the invention relates to a substrate, to a composition, for controlling mosquitoes, and to a specific methoxyacrylate compound, processes for the synthesis of mosquitocidal methoxyacrylate compounds and new intermediates.Type: GrantFiled: October 24, 2018Date of Patent: June 28, 2022Assignee: Syngenta Participations AGInventors: Ottmar Franz Hueter, Mark Hoppe, Tomas Smejkal, Raphael Dumeunier, Nicolas Fedou, Edouard Godineau, Philip Wege, Peter Maienfisch
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Publication number: 20220106263Abstract: The present invention relates to novel processes for the enantioselective iridium-catalysed hydrogenation of oximes and oxime ethers to provide compounds of formula (II) and salts thereof formula (I) and (II).Type: ApplicationFiled: November 1, 2019Publication date: April 7, 2022Applicant: SYNGENTA CROP PROTECTION AGInventors: Tomas SMEJKAL, Nicolai CRAMER, Josep MAS-ROSELLO
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Publication number: 20210387173Abstract: The present invention relates to a novel process for the iridium-catalysed hydrogenation of oximes. The invention also relates to novel iridium catalysts for use in the iridium-catalysed hydrogenation of oximes and to processes of preparation of these catalysts. The invention further relates to the use of the novel iridium catalysts in ionic hydrogenation of other unsaturated substrates.Type: ApplicationFiled: November 1, 2019Publication date: December 16, 2021Applicant: SYNGENTA CROP PROTECTION AGInventor: Tomas SMEJKAL
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Patent number: 11053188Abstract: The present invention relates to a process for the preparation of enantiomerically and diastereomerically enriched cyclobutane amines and amides by reacting (a) cyclopropylcarbonitrile to a cyclopropylcarbaldehyde, (b) further reacting to a cyclobutanone, or (d?) further reacting to an enamide, (c) further reacting to enantiomerically and diastereomerically enriched cyclobutane amines, or (d) further reacting to an enamide and (e) to an enantiomerically and diastereomerically enriched cyclobutylamide to obtain (f) an enantiomerically and diastereomerically enriched cyclobutane amine, and (g) further reacting to an enantiomerically and diastereomerically enriched cyclobutane amide.Type: GrantFiled: November 14, 2018Date of Patent: July 6, 2021Assignee: SYNGENTA PARTICIPATIONS AGInventors: Raphael Dumeunier, Tomas Smejkal, Brijnandan Premnath Mishra, Vijayagopal Raman Gopalsamuthiram, Edouard Godineau, Anthony Cornelius O'Sullivan
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Patent number: 10961248Abstract: Compounds of formula (I), wherein the substituents are as defined in claim 1, and the agrochemically acceptable salts, stereoisomers, enantiomers, tautomers and N-oxides of those compounds, can be used as insecticides and can be prepared in a manner known per se.Type: GrantFiled: November 24, 2017Date of Patent: March 30, 2021Assignee: SYNGENTA PARTICIPATIONS AGInventors: Andrew Edmunds, Michel Muehlebach, Pierre Joseph Marcel Jung, Sebastian Rendler, Vikas Sikervar, Girish Rawal, Indira Sen, Régis Jean Georges Mondiere, Tomas Smejkal, Myriem El Qacemi, Denis Gribkov
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Publication number: 20200407311Abstract: The present invention relates to a process for the preparation of enantiomerically and diastereomerically enriched cyclobutane amines and amides by reacting (a) cyclopropylcarbonitrile to a cyclopropylcarbaldehyde, (b) further reacting to a cyclobutanone, or (d) further reacting to an enamide, 5 (c) further reacting to enantiomerically and diastereomerically enriched cyclobutane amines, or (d) further reacting to an enamide and (e) to an enantiomerically and diastereomerically enriched cyclobutylamide to obtain (f) an enantiomerically and diastereomerically enriched cyclobutane amine, and (g) further reacting to an enantiomerically and diastereomerically enriched cyclobutane amide.Type: ApplicationFiled: November 14, 2018Publication date: December 31, 2020Applicant: SYNGENTA PARTICIPATIONS AGInventors: Raphael DUMEUNIER, Tomas SMEJKAL, Brijnandan Premnath MISHRA, Vijayagopal Raman GOPALSAMUTHIRAM, Edouard GODINEAU, Anthony Cornelius O'SULLIVAN
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Publication number: 20200315175Abstract: The present inventions concerns use of a specific methoxyacrylate compound to control mosquitoes, and vector control products comprising that methoxyacrylate compound, in particular the invention relates to a substrate, to a composition, for controlling mosquitoes, and to a specific methoxyacrylate compound, processes for the synthesis of mosquitocidal methoxyacrylate compounds and new intermediates.Type: ApplicationFiled: October 24, 2018Publication date: October 8, 2020Applicant: Syngenta Participations AGInventors: Ottmar Franz HUETER, Mark HOPPE, Tomas SMEJKAL, Raphael DUMEUNIER, Nicolas FEDOU, Edouard GODINEAU, Philip WEGE, Peter MAIENFISCH
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Publication number: 20190330204Abstract: The present invention relates to a process for the preparation of a compound of formula (IX) wherein R1, R2A, R2B, R3, R4, R5 and R6 are as defined in the specification. Furthermore, the present invention also relates to reduction of the compound of formula (IX) to produce a compound of formula (I).Type: ApplicationFiled: April 24, 2017Publication date: October 31, 2019Applicant: SYNGENTA PARTICIPATIONS AGInventors: Rupesh PATRE, Tomas SMEJKAL
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Publication number: 20190322675Abstract: Compounds of formula (I), wherein the substituents are as defined in claim 1, and the agrochemically acceptable salts, stereoisomers, enantiomers, tautomers and N-oxides of those compounds, can be used as insecticides and can be prepared in a manner known per se.Type: ApplicationFiled: November 24, 2017Publication date: October 24, 2019Applicant: SYNGENTA PARTICIPATIONS AGInventors: Andrew EDMUNDS, Michel MUEHLEBACH, Pierre Joseph Marcel JUNG, Sebastian RENDLER, Vikas SIKERVAR, Girish RAWAL, Indira SEN, Régis Jean Georges MONDIERE, Tomas SMEJKAL, Sujit Kumar GHORAI, Denis GRIBKOV
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Patent number: 10093672Abstract: A process for making certain spiroheterocyclic pyrrolidine dione derivatives.Type: GrantFiled: April 20, 2018Date of Patent: October 9, 2018Assignee: SYNGENTA PARTICIPATIONS AGInventors: Edouard Godineau, Tomas Smejkal, Sophie Pelletier, Michel Muehlebach, Régis Jean Georges Mondiere, Helmars Smits, Jochen Weckesser, Alan James Robinson
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Publication number: 20180237437Abstract: A process for making certain spiroheterocyclic pyrrolidine dione derivatives.Type: ApplicationFiled: April 20, 2018Publication date: August 23, 2018Applicant: SYNGENTA PARTICIPATIONS AGInventors: Edouard Godineau, Tomas Smejkal, Sophie Pelletier, Michel Muehlebach, Régis Jean Georges Mondiere, Helmars Smits, Jochen Weckesser, Alan James Robinson
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Patent number: 9969734Abstract: A process for making certain spiroheterocyclic pyrrolidine dione derivatives.Type: GrantFiled: July 11, 2014Date of Patent: May 15, 2018Assignee: Syngenta Participations AGInventors: Edouard Godineau, Tomas Smejkal, Sophie Pelletier, Michel Muehlebach, Regis Jean Georges Mondiere, Helmars Smits, Jochen Weckesser, Alan James Robinson
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Patent number: 9867371Abstract: Compounds of the formula (I), in which the substituents are as defined in claim 1, are suitable for use as nematicides.Type: GrantFiled: July 1, 2014Date of Patent: January 16, 2018Assignee: Syngenta Participations AGInventors: Anthony Cornelius O'Sullivan, Regis Jean Georges Mondiere, Olivier Loiseleur, Tomas Smejkal, Torsten Luksch, Andre Jeanguenat, Raphael Dumeunier, Edouard Godineau, Thomas Pitterna
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Patent number: 9815829Abstract: The present invention relates to a process for the preparation of a compound of formula (I) wherein A1 and A2 are C—H, or one of A1 and A2 is C—H and the other is N; R1 is C1-C4alkyl, C1-C4haloalkyl or C3-C6cycloalkyl; each R2 is independently bromo, chloro, fluoro or trifluoromethyl; R3 is hydrogen; R4 is hydrogen, halogen, methyl, halomethyl or cyano; or R3 and R4 together form a bridging 1,3-butadiene group; R5 is chlorodifluoromethyl or trifluoromethyl; n is 2 or 3; by reacting a compound of formula (II) wherein A1, A2, R1, R2, R3, R4, R5 and n is as defined under formula (I) above, with hydroxylamine, a base and a chiral catalyst, characterized in that the chiral catalyst is a dimeric chiral catalyst of formula (III) wherein R6, R7, R8, R9, R10 and X are as defined in claim 1.Type: GrantFiled: August 4, 2015Date of Patent: November 14, 2017Assignee: Syngenta Participations AGInventors: Tomas Smejkal, Helmars Smits
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Patent number: 9815803Abstract: The present invention relates to processes for the preparation of substituted cycloserine compounds of formula (I) wherein R1 is C1-C8alkyl, C1-C8haloalkyl, C3-C6 cycloalkyl, aryl or aryl substituted by one to five R11, or aryl-C1-C4alkylene or aryl-C1-C4alkylene substituted by one to five R11; and each R11 is independently C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy, cyano or halogen; The invention also relates to intermediates produced by the processes. Compounds of formula (I) are useful intermediates for the production of compounds in the agricultural and pharmaceutical fields.Type: GrantFiled: April 3, 2017Date of Patent: November 14, 2017Assignee: Syngenta Participations AGInventors: Tomas Smejkal, Helmars Smits, Christian Lothschuetz, Miroslav Terinek
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Publication number: 20170217953Abstract: The present invention relates to a process for the preparation of a compound of formula (I) wherein A1 and A2 are C—H, or one of A1 and A2 is C—H and the other is N; R1 is C1-C4alkyl, C1-C4haloalkyl or C3-C6cycloalkyl; each R2 is independently bromo, chloro, fluoro or trifluoromethyl; R3 is hydrogen; R4 is hydrogen, halogen, methyl, halomethyl or cyano; or R3 and R4 together form a bridging 1,3-butadiene group; R5 is chlorodifluoro-methyl or trifluoromethyl; n is 2 or 3; by reacting a compound of formula (II) wherein A1, A2, R1, R2, R3, R4, R5 and n is as defined under formula (I) above, with hydroxylamine, a base and a chiral catalyst, characterized in that the chiral catalyst is a dimeric chiral catalyst of formula (III) wherein R6, R7, R8, R9, R10 and X are as defmed in claim 1.Type: ApplicationFiled: August 4, 2015Publication date: August 3, 2017Applicant: Syngenta Participations AGInventors: Tomas SMEJKAL, Helmars SMITS
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Publication number: 20170204072Abstract: The present invention relates to processes for the preparation of substituted cycloserine compounds of formula (I) wherein R1 is C1-C8alkyl, C1-C8haloalkyl, C3-C6 cycloalkyl, aryl or aryl substituted by one to five R11, or aryl-C1-C4alkylene or aryl-C1-C4alkylene substituted by one to five R11; and each R11 is independently C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy, cyano or halogen; The invention also relates to intermediates produced by the processes. Compounds of formula (I) are useful intermediates for the production of compounds in the agricultural and pharmaceutical fields.Type: ApplicationFiled: April 3, 2017Publication date: July 20, 2017Applicant: Syngenta Participations AGInventors: Tomas SMEJKAL, Helmars SMITS, Christian LOTHSCHUETZ, Miroslav TERINEK
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Patent number: 9643938Abstract: The present invention relates to processes for the preparation of substituted cycloserine compounds of formula (I) wherein R1 is C1-C8alkyl, C1-C8haloalkyl, C3-C6cycloalkyl, aryl or aryl substituted by one to five R11, or aryl-C1-C4alkylene or aryl-C1-C4alkylene substituted by one to five R11; and each R11 is independently C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy, cyano or halogen; The invention also relates to intermediates produced by the processes. Compounds of formula (I) are useful intermediates for the production of compounds in the agricultural and pharmaceutical fields.Type: GrantFiled: April 30, 2015Date of Patent: May 9, 2017Assignee: Syngenta Participations AGInventors: Tomas Smejkal, Helmars Smits, Christian Lothschuetz, Miroslav Terinek
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Publication number: 20170044116Abstract: The present invention relates to processes for the preparation of substituted cycloserine compounds of formula (I) wherein R1 is C1-C8alkyl, C1-C8haloalkyl, C3-C6cycloalkyl, aryl or aryl substituted by one to five R11, or aryl-C1-C4alkylene or aryl-C1-C4alkylene substituted by one to five R11; and each R11 is independently C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy, cyano or halogen; The invention also relates to intermediates produced by the processes. Compounds of formula (I) are useful intermediates for the production of compounds in the agricultural and pharmaceutical fields.Type: ApplicationFiled: April 30, 2015Publication date: February 16, 2017Applicant: Syngenta Participations AGInventors: Tomas SMEJKAL, Helmars SMITS, Christian LOTHSCHUETZ, Miroslav TERINEK
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Patent number: 9469633Abstract: The present invention relates to processes for the enantio-selective preparation of spyrrolidine derivatives useful in the manufacture of pesticidally active compounds, as well as to intermediates in the processes. The processes include those comprising (a-i) reacting a compound of formula Ia wherein P is alkyl, aryl or heteroaryl, each optionally substituted, wherein the heteroaryl is connected at P via a ring carbon atom; R1 is chlorodifluoromethyl or trifluoromethyl; R2 is aryl or heteroaryl, each optionally substituted; with a source of cyanide in the presence a chiral catalyst to give a compound of formula IIa wherein P, R1 and R2 are as defined for the compound of formula Ia; and (a-ii) oxidizing the compound of formula IIa with a peroxy acid, or peroxide in the presence of an acid to give a compound of formula VI wherein R1 and R2 are as defined for the compound of formula Ia.Type: GrantFiled: September 28, 2012Date of Patent: October 18, 2016Assignee: Syngenta Participations AGInventors: Tomas Smejkal, Helmars Smits, Sebastian Volker Wendeborn, Guillaume Berthon, Jerome Yves Cassayre, Myriem El Qacemi