Using P-containing Catalyst Patents (Class 585/605)
  • Aqueous alkylation process
    Patent number: 5043510
    Abstract: This invention relates to a process for alkylation at carbon and phosphorus sites in an aqueous medium using precious metal catalysts containing sulfonated triarylphosphines (STP) of the generic formula P(C.sub.6 H.sub.4 SO.sub.3 --)X(C.sub.6 H.sub.5)Y (X+Y=3).
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: August 27, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Albert L. Casalnuovo, William A. Nugent, Jr.
  • Preparation of ethenylidenes
    Patent number: 4713458
    Abstract: Ketones and aldehydes are converted to ethenylidene-containing compounds by reaction thereof with dimethyl carbonate and a phosphine compound.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: December 15, 1987
    Assignee: The Dow Chemical Company
    Inventors: Kevin A. Frazier, James M. Renga
  • Process for the preparation of tertiary allylic amines from vinylic halides and olefins
    Patent number: 4175187
    Abstract: Tertiary allylic amines are obtained from vinylic halides and olefins, and substituted derivatives thereof, by reacting said halide with a mono-, di-, or tri-substituted olefin and an unhindered basic secondary amine in the presence of a palladium catalyst.
    Type: Grant
    Filed: October 24, 1978
    Date of Patent: November 20, 1979
    Assignee: University of Delaware
    Inventor: Richard F. Heck