Patents by Inventor Barja D. Mookherjee

Barja D. Mookherjee 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).

  • Synthesis of triconjugated dienones and novel intermediates used in said process
    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.