Patents Represented by Attorney N. L. Craig

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  • Preparation of 2,3-dihydro-2,2-dimethyl-7-benzofuranyl chloroformate with aqueous phase removal
    Patent number: 5332841
    Abstract: A process for the production of 2,3-dihydro-2,2-dimethyl-7-benzofuranyl chloroformate which comprises treating 2,3-dihydro-2,2-dimethyl-7-benzofuranol and phosgene in a water immiscible organic medium with aqueous base and removing aqueous phase from the organic phase during the process.
    Type: Grant
    Filed: June 30, 1993
    Date of Patent: July 26, 1994
    Assignee: FMC Corporation
    Inventor: Harry W. Weber, Jr.