Patents by Inventor G. Scott Yeargin

G. Scott Yeargin 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).

  • Preparation of alkenoxy aluminum compounds and compounds produced
    Patent number: 4394326
    Abstract: A process for the production of cis and trans isomers of compounds having the formula ##STR1## in which R, R' and R" are independently hydrogen or alkyl groups having from 1 to 20 carbon atoms, comprising(a) reacting the corresponding cis or trans isomer of a compound having the formula ##STR2## in which Q is an alkyl group having from 1 to 20 carbon atoms, with paraformaldehyde and(b) hydrolyzing the resulting product to produce the unsaturated alcohol.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: July 19, 1983
    Assignee: Texas Alkyls, Inc.
    Inventors: Dennis B. Malpass, G. Scott Yeargin
  • Preparation of unsaturated alcohols
    Patent number: 4341910
    Abstract: A process for the production of cis and trans isomers of compounds having the formula ##STR1## in which R, R' and R" are independently hydrogen or alkyl groups having from 1 to 20 carbon atoms, comprising(a) reacting the corresponding cis or trans isomer of a compound having the formula ##STR2## in which Q is an alkyl group having from 1 to 20 carbon atoms, with paraformaldehyde and(b) hydrolyzing the resulting product to produce the unsaturated alcohol.
    Type: Grant
    Filed: January 25, 1979
    Date of Patent: July 27, 1982
    Assignee: Texas Alkyls, Inc.
    Inventors: Dennis B. Malpass, G. Scott Yeargin
  • Preparation of unsaturated alcohols and intermediates therein
    Patent number: 4178297
    Abstract: This invention relates to the preparation of unsaturated alcohols useful as flavor and fragrance compounds. More specifically, this invention relates to the preparation of predominately cis-unsaturated alcohols by reacting a cis-1-alkenylaluminum dialkyl compound with an epoxide compound followed by hydrolysis. The alkenyl moiety has one or more double bond carbon-to-carbon linkage and from 5 to 20 carbon atoms that can be optionally substituted with the substituents selected from alkyl and aromatic radicals having 1 to 12 carbon atoms.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: December 11, 1979
    Assignee: Texas Alkyls, Inc.
    Inventors: Spencer C. Watson, Dennis B. Malpass, G. Scott Yeargin
  • Preparation of unsaturated alcohols
    Patent number: 4133815
    Abstract: This invention relates to the preparation of unsaturated alcohols useful as flavor and fragrance compounds. More specifically, this invention relates to the preparation of predominantly cis-unsaturated alcohols by reacting a cis-1-alkenylaluminum dialkyl compound with an epoxide compound followed by hydrolysis. The alkenyl moiety has one or more double bond carbon-to-carbon linkage and from 5 to 20 carbon atoms that can be optionally substituted with the substituents selected from alkyl and aromatic radicals having 1 to 12 carbon atoms.
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: January 9, 1979
    Assignee: Texas Alkyls, Inc.
    Inventors: Spencer C. Watson, Dennis B. Malpass, G. Scott Yeargin
  • Reduction of triphenylphosphine oxide to triphenylphosphine
    Patent number: 4113783
    Abstract: Triphenylphosphine oxide is reduced to triphenylphosphine by the steps of(a) reacting triphenylphosphine oxide with a dialkylaluminum hydride either formed externally to the reaction system or generated in situ by the application of heat to a trialkylaluminum in which at least one alkyl group contains from 2 to 15 carbon atoms and in which the .beta.-carbon on said alkyl group is directly bonded to at least one hydrogen atom, and(b) hydrolyzing the product of step (a) to produce triphenylphosphine.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: September 12, 1978
    Assignee: Texas Alkyls, Inc.
    Inventors: Dennis B. Malpass, G. Scott Yeargin
  • Intermediates for preparation of unsaturated alcohols
    Patent number: 4110357
    Abstract: This invention relates to the preparation of unsaturated alcohols useful as flavor and fragrance compounds. More specifically, this invention relates to the preparation of predominately cis-unsaturated alcohols by reacting a cis-1-alkenyl-aluminum dialkyl compound with an epoxide compound followed by hydrolysis. The alkenyl moiety has one or more double bond carbon-to-carbon linkage and from 5 to 20 carbon atoms that can be optionally substituted with the substituents selected from alkyl and aromatic radicals having 1 to 12 carbon atoms.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: August 29, 1978
    Assignee: Texas Alkyls, Inc.
    Inventors: Spencer C. Watson, Dennis B. Malpass, G. Scott Yeargin
  • Preparation of unsaturated alcohols
    Patent number: 4069260
    Abstract: This invention relates to the preparation of unsaturated alcohols useful as flavor and fragrance compounds. More specifically, this invention relates to the preparation of predominately cis-unsaturated alcohols by reacting a cis-1-alkenylaluminum dialkyl compound with an epoxide compound followed by hydrolysis. The alkenyl moiety has one or more double bond carbon-to-carbon linkage and from 5 to 20 carbon atoms that can be optionally substituted with the substituents selected from alkyl and aromatic radicals having 1 to 12 carbon atoms.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: January 17, 1978
    Assignee: Texas Alkyls, Inc.
    Inventors: Spencer C. Watson, Dennis B. Malpass, G. Scott Yeargin