Patents by Inventor Jake MacMillan

Jake MacMillan 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).

  • Process for the 13-deoxygenation of a 3,13-dehydroxy-gibberellin
    Patent number: 4243594
    Abstract: 13-Hydroxy gibberellins are dehydroxylated by esterifying the 13-hydroxy group with a sulphonic, carboxylic or thiocarboxylic acid or esterifiable derivative thereof and then reducing the 13-ester group with a tri-alkyltin hydride which is a selective reagent so that it is possible to remove a 13-hydroxy group in a gibberellin containing further hydroxy groups and/or lactone bridges. GA.sub.3 can be converted to GA.sub.7 by this process.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: January 6, 1981
    Assignee: Imperial Chemical Industries Limited
    Inventors: Michael H. Beale, Jake MacMillan