Patents by Inventor Jennifer M. Quirk

Jennifer M. Quirk 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).

  • Deblocking N-formyl aspartame compounds
    Patent number: 5017690
    Abstract: N-formyl amino acid or peptide is deformylated by reaction with aniline or methylene dianiline over noble metal catalyst, e.g., Pt-on-carbon. N-formanilide is formed as by-product. The process is particularly useful in deformylating N-formyl aspartame.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: May 21, 1991
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Jennifer M. Quirk
  • Novel process for the preparation of serinol
    Patent number: 4978793
    Abstract: A process of forming 2-amino-1,3-propanediol by reducing the compound, 5-nitro-1,3-dioxane and subsequently hydrolyzing the reduced compound.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: December 18, 1990
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Jennifer M. Quirk, Stephen G. Harsy, Christer L. Hakansson
  • Preparation of nitroesters via the reaction of nitroparaffins with cyanoformates
    Patent number: 4873358
    Abstract: A process to form alkyl nitroacetates by reacting, in a common solvent and in the presence of a base, a nitroparaffin and a cyanoformate. The desired product is formed by a simple one-step process using inexpensive and readily available reactants.
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: October 10, 1989
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Jennifer M. Quirk, Charles G. Carter
  • Process for the preparation of nitroolefins
    Patent number: 4861925
    Abstract: A process for the preparation of nitroolefins which comprises heating a solution of a nitroalcohol of the formula: ##STR1## to at least 125.degree. C. to give a corresponding nitroolefin which is contacted in situ with nucleophilic addition reagent.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: August 29, 1989
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Jennifer M. Quirk
  • Novel process for the preparation of bronopol
    Patent number: 4851588
    Abstract: A process of forming 2-bromo-2-nitro-1,3-propanediol by contacting a 5-nitro-1,3-dioxane with bromine under alkaline conditions and hydrolyzing the brominated product.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: July 25, 1989
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Robert J. Kupper, Felek Jachimowicz, Jennifer M. Quirk, Christer L. Hakansson
  • Aminopropylimidazoles
    Patent number: 4816589
    Abstract: 1-Cyanoethylimidazoles are hydrogenated to provide the correspondng 1-aminopropylimidazoles, e.g., an ethanol solution of 1-cyanoethyl-2-ethyl-4-methylimidazole is hydrogenated at 1000 psi using Raney nickel catalyst to prepare 1-aminpropyl-2-ethyl-4-methylimidazole, useful as an intermediate in the preparation of epoxy accelerators.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: March 28, 1989
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Shiow-Ching Lin, Jennifer M. Quirk
  • Process for producing epoxyorganoalkoxysilanes
    Patent number: 4804768
    Abstract: There is disclosed a process for producing certain epoxyorganoalkoxysilanes through the rhodium catalyzed hydrosilation of ethylenically unsaturated epoxides and alkoxysilanes in the presence of nitrogenous impurities.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: February 14, 1989
    Assignee: Union Carbide Corporation
    Inventors: Jennifer M. Quirk, Bernard Kanner
  • N-formylation of amino carboxylates with alkyl formates
    Patent number: 4801742
    Abstract: Formylating the amino nitrogen of an alkali metal salt of an amino carboxylic acid, by reacting the salt with an alkyl formate in an alkanol solvent. In one embodiment, the alkyl formate is added to the reaction as such; in another embodiment, the alkyl formate is formed in situ by reaction of carbon monoxide with the alkanol solvent in the presence of the alkali metal salt of the amino carboxylic acid. The process provides a new class of compounds, the alkali metal salts of N-formyl-aspartic acids.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: January 31, 1989
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Jennifer M. Quirk, Charles G. Carter, Robert J. Kupper
  • O-silylated ketene acetals and enol ethers and method of preparation
    Patent number: 4780554
    Abstract: Novel O-silylated ketene acetals and enol ethers are prepared via the 1,4-hydrosilation of a hydrosilation composition selected from the group consisting of aminosilanes, siloxanes and alkylalkoxysilanes with an .alpha.,.beta.-unsaturated carbonyl in the presence of a rhodium catalyst.
    Type: Grant
    Filed: June 6, 1985
    Date of Patent: October 25, 1988
    Assignee: Union Carbide Corporation
    Inventors: Jennifer M. Quirk, Linda K. Kozak, Bernard Kanner
  • Process for the preparation of olefinic silanes and siloxanes
    Patent number: 4668812
    Abstract: A novel synthesis for silanes and siloxanes containing olefinic bonds wherein an aminosilane, siloxane alkoxysilane or alkylalkoxysilane and an olefin undergo a dehydrocondensation in the presence of a rhodium or ruthenium catalyst.
    Type: Grant
    Filed: December 31, 1985
    Date of Patent: May 26, 1987
    Assignee: Union Carbide Corporation
    Inventors: Jennifer M. Quirk, Bernard Kanner
  • Novel process for the preparation of halopropyltrialkoxysilanes and halopropylalkylalkoxysilanes
    Patent number: 4658050
    Abstract: A process for the preparation of halopropyltrialkoxysilanes and halopropylalkylalkoxysilanes comprising the hydrosilation of allyl halides (including substituted allyl halides) with trialkoxysilanes and alkylalkoxy silanes over specific iridium-containing catalysts.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: April 14, 1987
    Assignee: Union Carbide Corporation
    Inventors: Jennifer M. Quirk, Bernard Kanner
  • Process for preparing vinyl-tri-(tertiary substituted) alkoxysilanes
    Patent number: 4579965
    Abstract: A process for preparing vinyl-tri-t-oxysilanes by reacting a tri-t-alkoxysilane with an alkyne in the presence of a platinum hydrosilation catalyst at a reaction temperature greater than 150.degree. C. forms a vinyl-tri-t-alkoxysilane in high yields and of high quality.
    Type: Grant
    Filed: January 24, 1985
    Date of Patent: April 1, 1986
    Assignee: Union Carbide Corporation
    Inventors: Bernard Kanner, Jennifer M. Quirk, Arthur P. De Monte
  • Process for preparing vinylaminosilanes
    Patent number: 4558146
    Abstract: A process for preparing vinylaminosilanes in which an aminosilane of the formula HSi(NRR').sub.x (R").sub.3-x is reacted with an alkyne of the formula R"'C.tbd.CH in which R and R" are each saturated or unsaturated aliphatic hydrocarbon radicals or an aromatic hydrocarbon radical, R' and R"' are the same or different and are each hydrogen or R and x is an integer from 1 to 3, in the presence of a platinum hydrosilation catalyst at reaction temperatures above about 180.degree. C.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: December 10, 1985
    Assignee: Union Carbide Corporation
    Inventors: Bernard Kanner, Jennifer M. Quirk, Arthur P. De Monte, Kunj R. Mehta
  • Process for preparing triacetoxysilanes from tris(amino)silanes
    Patent number: 4556725
    Abstract: Triacetoxysilanes are prepared by adding a tris(amino)silane to acetic anhydride and maintaining the reaction mix at a temperature no greater than about 50.degree. C.
    Type: Grant
    Filed: January 24, 1985
    Date of Patent: December 3, 1985
    Assignee: Union Carbide Corporation
    Inventors: Bernard Kanner, Jennifer M. Quirk, Arthur P. De Monte, Steven P. Hopper
  • Process for the preparation of aminopropylalkoxysilanes
    Patent number: 4556722
    Abstract: A process for the preparation of aminopropylalkoxysilanes comprising the hydrosilation of allylamines (including N-substituted allylamines) with alkoxyhydrosilanes in the presence of a rhodium-triorganophosphorus-complex catalyst. This process significantly increases the gamma- to beta-isomer ratio of the final product of the addition of allylamines to alkoxyhydrosilanes.
    Type: Grant
    Filed: March 28, 1985
    Date of Patent: December 3, 1985
    Assignee: Union Carbide Corporation
    Inventors: Jennifer M. Quirk, Scot Turner