Patents Represented by Attorney Leonard R. Hecker

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  • Process for preparing retinoyl chlorides
    Patent number: 4743400
    Abstract: A process to prepare retinoyl chlorides, e.g., of the following formula (I): ##STR1## under very mild chlorinating conditions by the action of a reagent amount of dimethylchloroformamidinium chloride on a corresponding retinoic acid.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: May 10, 1988
    Assignee: McNeilab, Inc.
    Inventor: Cynthia A. Maryanoff