Patents by Inventor Henry Szczepanski
Henry Szczepanski 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: 7795442Abstract: A process is provided for preparing compounds having the general formula I wherein R is a range of organic groups and X is a leaving group. The process comprises reacting a compound of formula II with a water-removing reagent. When X is halogen or a sulfonate, the compound of formula I may be prepared by reacting a compound of the formula III with a halogenating agent or a sulfonylating agent. Alternatively, when X is halogen, the compound of formula I can be prepared by reacting a compound of the formula IV where R2 and R2 are defined organic groups, with a compound of the formula halogen-C(—O)—O—C1-C8alkyl, halogen-C(—O)—O-aryl or halogen-C(—O)—O-benzyl.Type: GrantFiled: April 16, 2009Date of Patent: September 14, 2010Assignee: Syngenta Crop Protection, Inc.Inventors: Thomas Pitterna, Henry Szczepanski, Peter Mainenfisch, Ottmar Franz Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony Cornelius O'Sullivan
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Patent number: 7605111Abstract: Compounds of formula wherein the substituents have the meanings given in claim 1, and agronomically tolerable salts, isomers and enantiomers of those compounds, are suitable for use as herbicides.Type: GrantFiled: March 18, 2005Date of Patent: October 20, 2009Assignee: Syngenta Crop Protection, Inc.Inventors: Thomas Maetzke, André Stoller, Sebastian Wendeborn, Henry Szczepanski
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Publication number: 20090198054Abstract: The present disclosure is directed to a process for the preparation of a compound having the formula: wherein R is unsubstituted or substituted C1-C12alkyl, unsubstituted or substituted C2-C4alkenyl, unsubstituted or substituted C2-C4alkynyl, unsubstituted or substituted C3-C6cycloalkyl, unsubstituted or substituted aryl, unsubstituted or substituted heteroaryl, or —SR1; R1 is unsubstituted or substituted C1-C12alkyl, unsubstituted or substituted C2-C4alkenyl, unsubstituted or substituted C2-C4alkynyl, unsubstituted or substituted cycloalkyl, unsubstituted or substituted aryl or unsubstituted or substituted heteroaryl; and X is a selected leaving group that is not halogen, and may specifically be methylsulfonate, trifluoromethylsulfonate, and p-toluenesulfonate. These compounds are valuable intermediates useful in the synthesis of compounds having pesticidal activity.Type: ApplicationFiled: April 16, 2009Publication date: August 6, 2009Applicant: SYNGENTA CROP PROTECTION, INC.Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Franz Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony Cornelius O'Sullivan
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Patent number: 7538229Abstract: A process for the preparation of a compound of formula I wherein R is a range of organic groups and X is a leaving group which process comprises a) reacting a compound of the formula II where R is defined for formula (I) with a water-removing reagent; or b) for the preparation of a compound of formula (I) wherein K is halogen or a sulfonate, reacting a compound of the formula III where R is defined for formula (I) with a halogenating agent or a sulfonylating agent; or c) for the preparation of a compound of formula (I) wherein X is halogen, reacting a compound of the formula IV where R is as defined for formula (I) and R2 and R3 are defined organic groups with a compound of the formula halogen-C(—O)—O—C1-C8alkyl, halogen-C(—O)—O-aryl or halogen-C(—O)—O-benzyl.Type: GrantFiled: November 30, 2007Date of Patent: May 26, 2009Assignee: Syngenta Crop Protection, Inc.Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Franz Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony Cornelius O'Sullivan
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Patent number: 7459414Abstract: Compounds of formula wherein the substituents have the meanings given in claim 1, and agronomically tolerable salts, isomers and enantiomers of those compounds, are suitable for use as herbicides.Type: GrantFiled: March 18, 2005Date of Patent: December 2, 2008Assignee: Syngenta Crop Protection, Inc.Inventors: Thomas Maetzke, André Stoller, Sebastian Wendeborn, Henry Szczepanski
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Publication number: 20080076920Abstract: The present disclosure is directed to a process for the preparation of a compound having the formula: wherein R is unsubstituted or substituted C1-C12alkyl, unsubstituted or substituted C2-C4alkenyl, unsubstituted or substituted C2-C4alkynyl, unsubstituted or substituted C3-C6cycloalkyl, unsubstituted or substituted aryl, unsubstituted or substituted heteroaryl, or —SR1; R1 is unsubstituted or substituted C1-C12alkyl, unsubstituted or substituted C2-C4alkenyl, unsubstituted or substituted C2-C4alkynyl, unsubstituted or substituted cycloalkyl, unsubstituted or substituted aryl or unsubstituted or substituted heteroaryl; and X is a selected leaving group that is not halogen, and may specifically be methylsulfonate, trifluoromethylsulfonate, and p-toluenesulfonate. These compounds are valuable intermediates useful in the synthesis of compounds having pesticidal activity.Type: ApplicationFiled: November 30, 2007Publication date: March 27, 2008Applicant: SYNGENTA CROP PROTECTION, INC.Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony O'Sullivan
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Patent number: 7323564Abstract: The present invention is directed to a process for preparing a compound having the formula: wherein R is a range of organic groups and X is a leaving group. The process may include reacting a compound of the formula with a water-removing reagent. Also, when X is a halogen, the process may include reacting a compound of the formula with a halogenating agent or a sulfonylating agent. Alternatively, when X is a halogen, the process may be carried out by reacting a compound of the formula IV where R2 and R3 are defined organic groups with a compound of the formula halogen-C(—O)—O—C1 -C8alkyl, halogen-C(—O)—O-aryl or halogen-C(—O)—O-benzyl.Type: GrantFiled: October 24, 2006Date of Patent: January 29, 2008Assignee: Syngenta Crop Protection, Inc.Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Franz Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony O'Sullivan
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Publication number: 20070055063Abstract: A process for the preparation of a compound of the formula and, where applicable, its E/Z-isomers, mixtures of E/Z-isomers and/or tautomers and acid addition products thereof, in each case in free form or in salt form, wherein: R is unsubstituted or substituted C1-C12alkyl, unsubstituted or substituted C2-C4alkenyl, unsubstituted or substituted C2-C4alkynyl, unsubstituted or substituted C3-C6cycloalkyl, unsubstituted or substituted aryl, unsubstituted or substituted heteroaryl, or —SR1; R1 is unsubstituted or substituted C1-C12alkyl, unsubstituted or substituted C2-C4alkenyl, unsubstituted or substituted C2-C4alkynyl, unsubstituted or substituted cycloalkyl, unsubstituted or substituted aryl or unsubstituted or substituted heteroaryl; and X is a leaving group; The process comprises reacting a compound of the formula: with a halogenating agent or a sulfonylating agent.Type: ApplicationFiled: October 24, 2006Publication date: March 8, 2007Applicant: SYNGENTA CROP PROTECTION, INC.Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony O'Sullivan
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Patent number: 7161011Abstract: Described is a process for the preparation of a compound of the formula wherein R is unsubstituted or substituted C1–C12alkyl, C2–C4alkenyl, C2–C4alkynyl, C3–C6cycloalkyl, aryl or heteroaryl, or —SR1; R1 is unsubstituted or substituted C1–C12alkyl, C2–C4alkenyl, C2–C4alkenyl, C2–C4alkynyl, cycloalkyl, aryl or heteroaryl; and X is a leaving group; which comprises a) reacting a compound of the formula wherein R is as defined for formula (I), with a water removing reagent.Type: GrantFiled: March 27, 2003Date of Patent: January 9, 2007Assignee: Syngenta Crop Protection, Inc.Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Franz Hüter, Thomas Rapold, Marcel Senn, Thomas Göbel, Anthony Cornelius O'Sullivan
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Publication number: 20050187110Abstract: Compounds of formula wherein the substituents have the meanings given in claim 1, and agronomically tolerable salts, isomers and enantiomers of those compounds, are suitable for use as herbicides.Type: ApplicationFiled: March 18, 2005Publication date: August 25, 2005Inventors: Thomas Maetzke, Andre Stoller, Sebastian Wendeborn, Henry Szczepanski
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Publication number: 20050164883Abstract: Compounds of formula wherein the substituents have the meanings given in claim 1, and agronomically tolerable salts, isomers and enantiomers of those compounds, are suitable for use as herbicides.Type: ApplicationFiled: March 18, 2005Publication date: July 28, 2005Inventors: Thomas Maetzke, Andre Stoller, Sebastian Wendeborn, Henry Szczepanski
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Patent number: 6894005Abstract: Compounds of formula wherein the substituents have the meanings given in claim 1, and agronomically tolerable salts, isomers and enantiomer of those compounds, are suitable for use as herbicides.Type: GrantFiled: September 5, 2000Date of Patent: May 17, 2005Assignee: Syngenta Crop Protection, Inc.Inventors: Thomas Maetzke, André Stoller, Sebastian Wendeborn, Henry Szczepanski
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Patent number: 6864392Abstract: The invention relates to novel pesticidally active ?-sulfin- and ?-sulfonamino acid amides of the general formula (I) including the optical isomers thereof and mixtures of such isomers, wherein n is a number zero or one, R1-R7 have the meanings given in the specification. R8 is either hydrogen, (a), (b), (c), (d) or (e) wherein R11, R12, R14, R15 and R17 are each independently hydrogen or C1-C4alkyl, R13 is C4-C12alkyl; C1-C12 halogenalkyl; C3-C8 cycloalkyl; optionally substituted aryl or optionally substituted heteroaryl, R16 is optionally substituted aryl or optionally substituted heteroaryl; and Z is oxygen, sulfur —CR18R19— or —NR20—, wherein R18, R19, R20 independently of each other are hydrogen or C1-C4alkyl.Type: GrantFiled: April 11, 2001Date of Patent: March 8, 2005Assignee: Syngenta Crop Protection, Inc.Inventors: Martin Zeller, Clemens Lamberth, Henry Szczepanski, Alain De Mesmaeker
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Publication number: 20040198797Abstract: A process for the preparation of compounds of formula I 1Type: ApplicationFiled: February 13, 2003Publication date: October 7, 2004Inventors: Thomas Maetzke, Rene Mutti, Henry Szczepanski
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Publication number: 20040092401Abstract: The invention relates to novel pesticidally active &agr;-sulfin- and &agr;-sulfonamino acid amides of the general formula (I) including the optical isomers thereof and mixtures of such isomers, wherein n is a number zero or one, R1-R7 have the meanings given in the specification. R8 is either hydrogen, (a), (b), (c), (d) or (e) wherein R11, R12, R14, R,15 and R17 are each independently hydrogen or C1-C4alkyl, R13 is C4-C12alkyl; C1-C12 halogenalkyl; C3-C8 cycloalkyl; optionally substituted aryl or optionally substituted heteroaryl, R16 is optionally substituted aryl or optionally substituted heteroaryl; and Z is oxygen, sulfur —CR18R19— or —NR20—, wherein R18, R19, R20 independently of each other are hydrogen or C1-C4alkyl. The novel compounds possess plant-protecting properties and are suitable for protecting plants against infestation by phytopathogenic microorganisms.Type: ApplicationFiled: February 14, 2003Publication date: May 13, 2004Inventors: Martin Zeller, Clemens Lamberth, Henry Szczepanski, Alain De Mesmaeker
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Patent number: 6677457Abstract: The invention relates to a process for the preparation of a compound of the formula wherein Q, Y, Z, R1, R2, R3, R4 and R5 are as defined in the specification, which comprises a) reacting a compound of the formula with a halogenating agent to form a compound of the formula or b) converting a compound of formula (II) by means of a halogenating agent into a compound of the formula optionally c) converting the compound of formula (IV) into a compound of formula (III); d) converting a compound of formula (III) by means of a compound of the formula into a compound of the formula or e) converting a compound (IV) by means of a compound (V) into a compound (VI); and f) converting a compound (VI) by means of a chlorinating agent into a compound (I); a compound (IV); to a process for the preparation of a compound (III) and to a process for the preparation of a compound (IV).Type: GrantFiled: January 15, 2002Date of Patent: January 13, 2004Assignee: Syngenta Crop Protection, Inc.Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Franz Hüter, Thomas Rapold, Marcel Senn, Thomas Göbel, Anthony Cornelius O'Sullivan, Gottfried Seifert
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Publication number: 20030229228Abstract: The invention relates to novel pesticidally active &agr;-sulfin- and &agr;-sulfonamino acid amides of the general formula (I) including the optical isomers thereof and mixtures of such isomers, wherein n is a number zero or one; R1-R9 have the meanings given in the specification R10 is either hydrogen, (a), (b), (c), (d) or (e) wherein R13, R14, R16, R17 and R19 are each independently hydrogen or C1-C4 alkyl, R15 is C4-C12 alkyl; C1-C12 halogenalkyl; C3-C8 cycloalkyl; optionally substituted aryl or optionally substituted heteroaryl, R18 is optionally substituted aryl or optionally substituted heteroaryl; and Z is oxygen, sulfur —CR20R21— or —NR22—, wherein R20, R21 and R22 independently of each other are hydrogen of C1-C4 alkyl; provided that when R8 is hydrogen, R9 is not C1-C6-alkoxy, C3-C6 alkenyloxy or C3-C6-alkynyloxy in position 3 of the phenyl ring carrying these radicals.Type: ApplicationFiled: February 20, 2003Publication date: December 11, 2003Inventors: Martin Zeller, Clemens Lamberth, Henry Szczepanski, Alain De Mesmaeker
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Publication number: 20030224940Abstract: The invention relates to novel pesticidally active &agr;-sulfin and &agr;-sulfonamino acid amides of the general formula (I) including the optical isomers thereof and mixtures of such isomers, wherein n is a number zero or one; R1, R2, R3, R4, R5, R6 and R7 have the meanings given in the specification, and R8 is either hydrogen, (a), (b), (c), (d) or (e) wherein R11, R12, R13, R15 and R17 are each independently hydrogen or C1-C4 alkyl, R13 is C4-C12 alkyl, C1-C12 halogenalkyl; C3-C8 cycloalkyl; optionally substituted aryl or optionally substituted heteroaryl, R16 is optionally substituted aryl or optionally substituted heteroaryl; and Z is oxygen, sulfur —CR18R19— or —NR2O—, wherein R18, R19 and R20 independently of each other are hydrogen or C1-C4 alkyl. The novel compounds possess plant-protecting properties and are suitable for protecting plants against infestation by phytopathogenic microorganisms.Type: ApplicationFiled: May 6, 2003Publication date: December 4, 2003Inventors: Martin Zeller, Clemens Lamberth, Henry Szczepanski, Alain De Mesmaeker
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Patent number: 6552187Abstract: A process for the preparation of compounds of formula (I), which process comprises reacting a compound of formula (II), in an inert organic solvent, optionally in the presence of a base, with a compound of formula (IV), (IVa) or (IVb), and optionally converting the resulting compound of formula (I) wherein G is a metal ion equivalent or an ammonium cation, by salt conversion into the corresponding salt of formula (I) wherein G is a sulfonium or phosphonium cation, or by treatment with a Brönsted acid into the corresponding compound of formula (I) wherein G is hydrogen, and ‘in situ’ conversion of compounds of formula (I) with an electrophile of formula (XII) or (XIId) G0—L (XII) or R32—N═C═X3 (XIId), optionally in the presence of an acid-binding agent or a catalyst, to the compounds of formula (Ia).Type: GrantFiled: November 29, 2001Date of Patent: April 22, 2003Assignee: Syngenta Crop Protection, Inc.Inventors: Thomas Maetzke, René Mutti, Henry Szczepanski
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Patent number: 6548676Abstract: Described is a process for the preparation of a compound of formula (I) wherein R is unsubstituted or substituted C1-C12alkyl, C2-C4alkenyl, C2-C4alkynyl, C3-C6cycloalkyl, aryl or heteroaryl, or —SR1; R1 is unsubstituted or substituted C1-C12alkyl, C2-C4alkenyl, C2-C4alkynyl, cycloalkyl, aryl or heteroaryl; and X is a leaving group; which comprises: a) reacting a compound of formula (II) wherein R is as defined for formula (I), with a water-removing reagent; or b) for the preparation of a compound of formula (I) wherein X is halogen or a sulfonate, reacting a compound of the formula (III) wherein R is as defined for formula (I), with a halogenating or a sulfonylating agent; or c) for the preparation of a compound of formula (I) wherein X is halogen, reacting a compound of formula (IV) wherein R is as defined for formula (I); and wherein R2 and R3 are for example H, C1-C6alkyl, C3-C6cycloalkyl, phenyl or benzyl; with a compound of the formula halogen-C(═O)—O—C1-C8alkyl, halogen-C(═OType: GrantFiled: June 18, 1999Date of Patent: April 15, 2003Assignee: Syngenta Crop Protection, Inc.Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Franz Hüter, Thomas Rapold, Marcel Senn, Thomas Göbel, Anthony Cornelius O'Sullivan