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).

  • Patent number: 7795442
    Abstract: 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: Grant
    Filed: April 16, 2009
    Date of Patent: September 14, 2010
    Assignee: Syngenta Crop Protection, Inc.
    Inventors: Thomas Pitterna, Henry Szczepanski, Peter Mainenfisch, Ottmar Franz Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony Cornelius O'Sullivan
  • Patent number: 7605111
    Abstract: 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: Grant
    Filed: March 18, 2005
    Date of Patent: October 20, 2009
    Assignee: Syngenta Crop Protection, Inc.
    Inventors: Thomas Maetzke, André Stoller, Sebastian Wendeborn, Henry Szczepanski
  • Publication number: 20090198054
    Abstract: 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: Application
    Filed: April 16, 2009
    Publication date: August 6, 2009
    Applicant: SYNGENTA CROP PROTECTION, INC.
    Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Franz Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony Cornelius O'Sullivan
  • Patent number: 7538229
    Abstract: 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: Grant
    Filed: November 30, 2007
    Date of Patent: May 26, 2009
    Assignee: Syngenta Crop Protection, Inc.
    Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Franz Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony Cornelius O'Sullivan
  • Patent number: 7459414
    Abstract: 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: Grant
    Filed: March 18, 2005
    Date of Patent: December 2, 2008
    Assignee: Syngenta Crop Protection, Inc.
    Inventors: Thomas Maetzke, André Stoller, Sebastian Wendeborn, Henry Szczepanski
  • Publication number: 20080076920
    Abstract: 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: Application
    Filed: November 30, 2007
    Publication date: March 27, 2008
    Applicant: SYNGENTA CROP PROTECTION, INC.
    Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony O'Sullivan
  • Patent number: 7323564
    Abstract: 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: Grant
    Filed: October 24, 2006
    Date of Patent: January 29, 2008
    Assignee: Syngenta Crop Protection, Inc.
    Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Franz Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony O'Sullivan
  • Publication number: 20070055063
    Abstract: 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: Application
    Filed: October 24, 2006
    Publication date: March 8, 2007
    Applicant: SYNGENTA CROP PROTECTION, INC.
    Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Huter, Thomas Rapold, Marcel Senn, Thomas Gobel, Anthony O'Sullivan
  • Patent number: 7161011
    Abstract: 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: Grant
    Filed: March 27, 2003
    Date of Patent: January 9, 2007
    Assignee: Syngenta Crop Protection, Inc.
    Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Franz Hüter, Thomas Rapold, Marcel Senn, Thomas Göbel, Anthony Cornelius O'Sullivan
  • Publication number: 20050187110
    Abstract: 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: Application
    Filed: March 18, 2005
    Publication date: August 25, 2005
    Inventors: Thomas Maetzke, Andre Stoller, Sebastian Wendeborn, Henry Szczepanski
  • Publication number: 20050164883
    Abstract: 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: Application
    Filed: March 18, 2005
    Publication date: July 28, 2005
    Inventors: Thomas Maetzke, Andre Stoller, Sebastian Wendeborn, Henry Szczepanski
  • Patent number: 6894005
    Abstract: 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: Grant
    Filed: September 5, 2000
    Date of Patent: May 17, 2005
    Assignee: Syngenta Crop Protection, Inc.
    Inventors: Thomas Maetzke, André Stoller, Sebastian Wendeborn, Henry Szczepanski
  • Patent number: 6864392
    Abstract: 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: Grant
    Filed: April 11, 2001
    Date of Patent: March 8, 2005
    Assignee: Syngenta Crop Protection, Inc.
    Inventors: Martin Zeller, Clemens Lamberth, Henry Szczepanski, Alain De Mesmaeker
  • Publication number: 20040198797
    Abstract: A process for the preparation of compounds of formula I 1
    Type: Application
    Filed: February 13, 2003
    Publication date: October 7, 2004
    Inventors: Thomas Maetzke, Rene Mutti, Henry Szczepanski
  • Publication number: 20040092401
    Abstract: 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: Application
    Filed: February 14, 2003
    Publication date: May 13, 2004
    Inventors: Martin Zeller, Clemens Lamberth, Henry Szczepanski, Alain De Mesmaeker
  • Patent number: 6677457
    Abstract: 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: Grant
    Filed: January 15, 2002
    Date of Patent: January 13, 2004
    Assignee: 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
  • Publication number: 20030229228
    Abstract: 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: Application
    Filed: February 20, 2003
    Publication date: December 11, 2003
    Inventors: Martin Zeller, Clemens Lamberth, Henry Szczepanski, Alain De Mesmaeker
  • Publication number: 20030224940
    Abstract: 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: Application
    Filed: May 6, 2003
    Publication date: December 4, 2003
    Inventors: Martin Zeller, Clemens Lamberth, Henry Szczepanski, Alain De Mesmaeker
  • Patent number: 6552187
    Abstract: 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: Grant
    Filed: November 29, 2001
    Date of Patent: April 22, 2003
    Assignee: Syngenta Crop Protection, Inc.
    Inventors: Thomas Maetzke, René Mutti, Henry Szczepanski
  • Patent number: 6548676
    Abstract: 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(═O
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: April 15, 2003
    Assignee: Syngenta Crop Protection, Inc.
    Inventors: Thomas Pitterna, Henry Szczepanski, Peter Maienfisch, Ottmar Franz Hüter, Thomas Rapold, Marcel Senn, Thomas Göbel, Anthony Cornelius O'Sullivan