Patents by Inventor Robin L. Kasper

Robin L. Kasper 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).

  • Substituted 1-oxyalkyl-2,6,6-trimethyl-cyclohexene derivatives, organoleptic uses thereof, syntheses for preparing same and intermediates used in said syntheses
    Patent number: 4202994
    Abstract: Described are substituted 1-oxyalkyl-2,6,6-trimethylcyclohexene derivatives having the generic structure: ##STR1## wherein R.sub.1 is one of OH, ##STR2## OMgX or H; R.sub.2 is ##STR3## OH, OMgX, CH.sub.3, H; R.sub.3 is one of methyl, ethyl, 1-propyl or 2-propyl; X is chloro, bromo or iodo; R.sub.6 is hydrogen or no moiety; one of the wavy lines is a carbon-carbon double and the other of the wavy lines is a carbon-carbon single bond; with the first proviso that when the .DELTA..sup.2,3 bond is a carbon-carbon double bond, then R.sub.6 is hydrogen and the moieties R.sub.6 and ##STR4## are so juxtaposed as to give rise to two different groups of stereoisomers of the molecular genus: ##STR5## and with the second proviso that when R.sub.1 is one of ##STR6## OH or OMgX then R.sub.2 is hydrogen or methyl; and when R.sub.2 is one of ##STR7## OH or OMgX then R.sub.1 is hydrogen.
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: May 13, 1980
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Robert W. Trenkle, Braja D. Mookherjee, Robin L. Kasper, Manfred H. Vock