Patents by Inventor William J. Evers

William J. Evers 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: 5077274
    Abstract: Described is the novel compound, bicyclo[10.2.0]tetradecan-13-one having the structure: ##STR1## as well as the use thereof in augmenting or enhancing the aroma of consumable materials including perfume compositions, colognes and perfumed articles (including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softeners, cosmetic powders and hair preparations). Also described is a process for preparing said bicyclo[10.2.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: December 31, 1991
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Howard H. Heinsohn, Jr.
  • Patent number: 4749681
    Abstract: Described are polyalkyl-substituted oxocycloheptane derivatives defined according to the structure: ##STR1## wherein X represents one of the moieties: ##STR2## wherein one of the dashed lines is a carbon-carbon double bond and the other of the dashed lines is a carbon-carbon single bond; or both dashed lines are carbon-carbon single bonds; wherein R.sub.1 and R.sub.2 represents hydrogen or lower alkyl with the proviso that when the dashed line at the 4-5 position is a double bond, R.sub.2 is hydrogen and when the dashed line at the 3-4 position is a double bond, R.sub.1 is hydrogen; wherein R.sub.4 represents C.sub.1 -C.sub.4 lower alkyl; and wherein Y represents chloro or bromo.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: June 7, 1988
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Howard H. Heinsohn, Jr.
  • Patent number: 4623749
    Abstract: Described is a process for preparing triconjugated dienones defined according to the structure: ##STR1## wherein R.sub.1 represents C.sub.1 -C.sub.8 alkyl, phenyl or phenyl methyl and wherein R.sub.2 represents hydrogen or C.sub.1 -C.sub.5 lower alkyl; and wherein the wavy lines are indicative of a "cis" or a "trans" juxtaposition of the R.sub.2, methyl, acyl or vinyl moieties about one or both of the carbon-carbon double bonds which process involves the reaction of an acyl halide with a substituted or unsubstituted prenyl ester having the structure: ##STR2## wherein R.sub.3 represents C.sub.1 -C.sub.
    Type: Grant
    Filed: August 17, 1984
    Date of Patent: November 18, 1986
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Gilbert Stork, Braja D. Mookherjee, Howard H. Heinsohn, Jr.
  • Patent number: 4620945
    Abstract: Described are organoleptic utilities of mixtures of t-mercapto terpene isomers defined according to the generic structure: ##STR1## wherein one of the dashed lines is a carbon-carbon double bond and the other of the dashed lines is a carbon-carbon single bond taken further together with .alpha.-terpineol having the structure: ##STR2## .beta.-phenylethyl alcohol having the structure: ##STR3## 3-methyl-1-phenyl-pentanol-5 having the structure: ##STR4## and/or butanoyl cyclohexane derivatives defined according to the generic structure: ##STR5## wherein one of the dashed lines is a carbon-carbon double bond or two of the dashed lines represent carbon-carbon double bonds but that when two of the dashed lines represent carbon-carbon double bonds, the carbon-carbon double bonds are conjugated.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: November 4, 1986
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Bernard J. Chant, William J. Evers, Richard A. Wilson, Michael J. Zampino, Manfred H. Vock
  • Patent number: 4584128
    Abstract: Described are mixtures of t-mercapto terpene isomers defined according to the generic structure: ##STR1## wherein one of the dashed lines is a carbon-carbon double bond and the other of the dashed lines is a carbon-carbon single bond taken further together with .alpha.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: April 22, 1986
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Bernard J. Chant, William J. Evers, Richard A. Wilson, Michael J. Zampino, Manfred H. Vock
  • Patent number: 4560802
    Abstract: Described is a process for preparing triconjugated dienones defined according to the structure: ##STR1## wherein R.sub.1 represents C.sub.1 -C.sub.8 alkyl, phenyl or phenyl methyl and wherein R.sub.2 represents hydrogen or C.sub.1 -C.sub.5 lower alkyl; and wherein the wavy lines are indicative of a "cis" or a "trans" juxtaposition of the R.sub.2, methyl, acyl or vinyl moieties about one or both of the carbon-carbon double bonds which process involves the reaction of an acyl halide having the structure: ##STR2## (wherein X represents chloro) with a substituted or unsubstituted prenyl ester having the structure: ##STR3## wherein R.sub.3 represents C.sub.1 -C.sub.
    Type: Grant
    Filed: June 13, 1984
    Date of Patent: December 24, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Gilbert Stork, Braja D. Mookherjee, Howard H. Heinsohn, Jr.
  • Patent number: 4560791
    Abstract: Described is a process for preparing triconjugated dienones defined according to the structure: ##STR1## wherein R.sub.1 represents C.sub.1 -C.sub.8 alkyl, phenyl or phenyl methyl and wherein R.sub.2 represents hydrogen or C.sub.1 -C.sub.5 lower alkyl; and wherein the wavy lines are indicative of a "cis" or a "trans" juxtaposition of the R.sub.2, methyl, acyl or vinyl moieties about one or both of the carbon-carbon double bonds which process involves the reaction of an acyl halide having the structure: ##STR2## (wherein X represents chloro) with a substituted or unsubstituted prenyl ester having the structure: ##STR3## wherein R.sub.3 represents C.sub.1 -C.sub.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: December 24, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Gilbert Stork, Braja D. Mookherjee, Howard H. Heinsohn, Jr.
  • Patent number: 4549972
    Abstract: Described is 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol as a mixture of isomers and in its isomeric forms having the structures: ##STR1## and the uses thereof in augmenting or enhancing the aroma of perfume compositions, perfumed articles, and colognes. Also described is a novel process for preparing 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol by first reacting the compound having the structure: ##STR2## with the compound having the structure: ##STR3## in order to produce the ketone defined according to the structure: ##STR4## which is hydrogenated to form the compound having the structure: ##STR5## and further hydrogenated to form the ketone having the structure: ##STR6## This ketone is reacted with CH.sub.3 M wherein M represents Li or MgX and wherein X is chloro, bromo or iodo to form the organometallic intermediate defined according to the structures: ##STR7## These compounds are then hydrolyzed with dilute acid to form the organoleptically useful 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.
    Type: Grant
    Filed: November 14, 1984
    Date of Patent: October 29, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Braja D. Mookherjee, Anton Van Ouwerkerk, Augustinus G. Van Loveren
  • Patent number: 4536583
    Abstract: Described is a process for preparing a mixture of t-mercapto terpenes defined according to the structure: ##STR1## and .alpha.-terpineol defined according to the structure: ##STR2## including the step of reacting the compound defined according to the structure: ##STR3## with an alkali metal thiocyanate defined according to the structure: ##STR4## wherein M represents alkali metal such as sodium, potassium or lithium in the presence of a phase transfer catalyst. The resulting product is then treated with lithium aluminum hydride followed by aqueous mineral acid to form a mixture of .alpha.-terpineol and the compound defined according to the structure: ##STR5## which mixture is useful for its organoleptic properties.
    Type: Grant
    Filed: August 1, 1983
    Date of Patent: August 20, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Bernard J. Chant, William J. Evers, Richard A. Wilson, Michael J. Zampino, Manfred H. Vock
  • Patent number: 4532359
    Abstract: Described is a novel process for preparing 1,2,3,3,5,6-hexamethyl- bicyclo [2,2,2.] oct-5-en-2-ol by using 2,6,6-trimethylcyclohexa-2,4-diene-1-one as a starting material.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: July 30, 1985
    Assignee: International Flavors & Fragrancs Inc.
    Inventors: William J. Evers, Braja D. Mookherjee, Anton Van Ouwerkerk, Augustinus G. Van Loveren
  • Patent number: 4514324
    Abstract: Described is 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol as a mixture of isomers and in its isomeric forms having the structures: ##STR1## and the uses thereof in augmenting or enhancing the aroma of perfume compositions, perfumed articles, and colognes. Also described is a novel process for preparing 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol by first reacting the compound having the structure: ##STR2## with the compound having the structure: ##STR3## in order to produce the ketone defined according to the structure: ##STR4## which is hydrogenated to form the compound having the structure: ##STR5## and further hydrogenated to form the ketone having the structure: ##STR6## This ketone is reacted with CH.sub.3 M wherein M represents Li or MgX and wherein X is chloro, bromo or iodo to form the organometallic intermediate defined according to the structures: ##STR7## These compounds are then hydrolyzed with dilute acid to form the organoleptically useful 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: April 30, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Braja D. Mookherjee, Anton Van Ouwerkerk, Augustinus G. Van Loveren
  • Patent number: 4512902
    Abstract: Described is 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol as a mixture of isomers and in its isomeric forms having the structures: ##STR1## and the uses thereof in augmenting or enhancing the aroma of perfume compositions, perfumed articles, and colognes.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: April 23, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Braja D. Mookherjee, Anton Van Ouwerkerk, Augustinus G. Van Loveren
  • Patent number: 4504398
    Abstract: Described is a process for augmenting or enhancing the aroma of a perfumed article which is a solid or liquid anionic, cationic, nonionic or zwitterionic detergent or a fabric softener composition or a dryer-added fabric softener article comprising the step of adding to said perfumed article at least one compound having a structure selected from the group consisting of: ##STR1##
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: March 12, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Gilbert Stork, Braja D. Mookherjee, Howard H. Heinsohn, Jr.
  • Patent number: 4496775
    Abstract: Described is 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol as a mixture of isomers and in its isomeric forms and the uses thereof in augmenting or enhancing the aroma of perfume compositions, perfumed articles, and colognes.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: January 29, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Braja D. Mookherjee, Anton Van Ouwerkerk, Augustinus G. Van Loveren
  • Patent number: 4471135
    Abstract: Described is 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol as a mixture of isomers and in its isomeric forms having the structures: ##STR1## and the uses thereof in augmenting or enhancing the aroma of perfume compositions, perfumed articles, and colognes. Also described is a novel process for preparing 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: September 11, 1984
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Braja D. Mookherjee, Anton Van Ouwerkerk, Augustinus G. Van Loveren
  • Patent number: 4467820
    Abstract: Described is a process for preparing triconjugated dienones defined according to the structure: ##STR1## wherein R.sub.1 represents C.sub.1 -C.sub.8 alkyl, phenyl or phenyl methyl and wherein R.sub.2 represents hydrogen or C.sub.1 -C.sub.5 lower alkyl; and wherein the wavy lines are indicative of a "Cis" or a "trans" juxtaposition of the R.sub.2, methyl, acyl or vinyl moieties about one or both of the carbon-carbon double bonds which process involves the reaction of an acyl halide having the structure: ##STR2## with a substituted or unsubstituted prenyl ester having the structure: ##STR3## wherein R.sub.3 represents C.sub.1 -C.sub.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: August 28, 1984
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Gilbert Stork, Braja D. Mookherjee, Howard H. Heinsohn, Jr.
  • Patent number: 4451392
    Abstract: Described is a process for preparing triconjugated dienones defined according to the structure: ##STR1## wherein R.sub.1 represents C.sub.1 -C.sub.8 alkyl, phenyl or phenyl methyl and wherein R.sub.2 represents hydrogen or C.sub.1 -C.sub.5 lower alkyl; and wherein the wavy lines are indicative of a "cis" or a "trans" juxtaposition of the R.sub.2, methyl, acyl or vinyl moieties about one or both of the carbon-carbon double bonds which process involves the reaction of an acyl halide having the structure: ##STR2## (wherein X represents chloro) with a substituted or unsubstituted prenyl ester having the structure: ##STR3## wherein R.sub.3 represents C.sub.1 -C.sub.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: May 29, 1984
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Gilbert Stork, Barja D. Mookherjee, Howard H. Heinsohn, Jr.
  • Patent number: 4434085
    Abstract: Described is 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol as a mixture of isomers and in its isomeric forms having the structures: ##STR1## and the uses thereof in augmenting or enhancing the aroma of perfume compositions, perfumed articles, and colognes. Also described is a novel process for preparing 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.2]oct-5-en-2-ol by first reacting the compound having the structure: ##STR2## with the compound having the structure: ##STR3## in order to produce the ketone defined according to the structure: ##STR4## which is hydrogenated to form the compound having the structure: ##STR5## and further hydrogenated to form the ketone having the structure: ##STR6## This ketone is reacted with CH.sub.3 M wherein M represents Li or MgX and wherein X is chloro, bromo or iodo to form the organometallic intermediate defined according to the structures: ##STR7## These compounds are then hydrolyzed with dilute acid to form the organoleptically useful 1,2,3,3,5,6-hexamethyl-bicyclo[2.2.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: February 28, 1984
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William J. Evers, Braja D. Mookherjee, Anton Van Ouwerkerk, Augustinus G. Van Loveren
  • Patent number: 4145354
    Abstract: Processes and compositions are described for the use in foodstuff, chewing gum, toothpaste and medicinal product flavor and aroma and tobacco flavor and aroma augmenting, modifying, enhancing and imparting compositions and as foodstuff, chewing gum, toothpaste, medicinal product and tobacco aroma and flavor imparting, augmenting, modifying and enhancing materials of one or more 5-acyl-2-(furfurylthio)dihydro-2,5-dialkyl-3-?2H!furanones having the generic structure: ##STR1## wherein R.sub.1 ', R.sub.2 ', R.sub.3 ' and R.sub.4 ' are each the same or different and each represents hydrogen or methyl produced according to the process of reacting one or more alpha, beta diketones containing from 4 up to 6 carbon atoms and having the generic structure: ##STR2## or one or more dimerization products thereof having the generic structure: ##STR3## wherein R.sub.1 ', R.sub.2 ', R.sub.3 ', R.sub.4 ', R.sub.5 ' and R.sub.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: March 20, 1979
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Donald A. Withycombe, Ira Katz, Alfred E. Goossens, Manfred H. Vock, William J. Evers, Joaquin F. Vinals, Jacob Kiwala
  • Patent number: 4143173
    Abstract: Processes and compositions are described for the use in foodstuff, chewing gum, toothpaste and medicinal product flavor and aroma and tobacco flavor and aroma augmenting, modifying, enhancing and imparting compositions and as foodstuff, chewing gum, toothpaste, medicinal product and tobacco aroma and flavor imparting, augmenting, modifying and enhancing materials of one or more 5-acyl-2-(furfurylthio)dihydro-2,5-dialkyl-3-[2H]furanones having the generic structure: ##STR1## wherein R.sub.1 ', R.sub.2 ', R.sub.3 ' and R.sub.4 ' are each the same or different and each represents hydrogen or methyl produced according to the process of reacting one or more alpha, beta diketones containing from 4 up to 6 carbon atoms and having the generic structure: ##STR2## or one or more dimerization products thereof having the generic structure: ##STR3## wherein R.sub.1 ', R.sub.2 ', R.sub.3 ', R.sub.4 ', R.sub.5 ' and R.sub.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: March 6, 1979
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Braja D. Mookherjee, Donald A. Withycombe, Ira Katz, Alfred E. Goossens, Manfred H. Vock, William J. Evers, Joaquin F. Vinals, Jacob Kiwala