Patents Represented by Attorney James Drake

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  • Supported ferrocene-based catalysts for selective aldehyde hydrogenation
    Patent number: 6841499
    Abstract: A supported catalyst comprises a cationic rhodium(I) complex of the formula wherein R1 and R2 are the same or different hydrocarbon groups of up to 30 C atoms, or R1 and R2 are linked to form a ring, and a heterogeneous support medium that provides anionic binding sites. Such a complex is particularly useful as a catalyst in a process of hydrogenating an aldehyde to produce the corresponding primary alcohol.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: January 11, 2005
    Assignee: Chirotech Technology Limited
    Inventors: Mark Joseph Burk, Arne Gerlach