Organic Material Which Contains Phosphorus, Arsenic, Or Antimony, In Addition To Nickel, Utilized (e.g., Zero-valent Nickel Complexes, Etc.) Patents (Class 558/338)
  • Hydrocyanation of conjugated 2-alkenoates
    Patent number: 5087723
    Abstract: An improved process for the nickel-catalyzed hydrocyanation of alkyl 2-alkenoates is disclosed.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: February 11, 1992
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Ronald J. McKinney
  • Process for producing norcamphane dicarbonitriles
    Patent number: 5087722
    Abstract: A norcamphane dicarbonitrile is produced by hydrocyanation of bicyclo [2,2,1]-5-heptene-2-carbonitrile in the presence of a zerovalent nickel complex catalyst and Lewis acid and treating the resulting crude product by contact with a catalyst treating agent.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: February 11, 1992
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Masamitu Inomata, Naokazu Shiotani, Kazuo Koshizuka, Minato Karasawa
  • Process for preparing poly(alkylene carbonate) monoahls and polyahls useful as surfactants
    Patent number: 5015753
    Abstract: Poly(alkylene carbonate) monoahls and polyahls useful as nonionic surfactants and having a poly(alkylene carbonate) backbone are prepared by reacting an oligomeric poly(alkylene carbonate) polyahl with a compound having mono- or difunctional active hydrogen moieties, such as alcohols, carboxylic acids, mercaptans, amides, primary or secondary amines, or substituted phenols, optionally in the presence of a catalyst, under transesterification conditions.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: May 14, 1991
    Assignee: The Dow Chemical Company
    Inventor: Robert F. Harris
  • Promoter synergism in pentenenitrile hydrocyanation
    Patent number: 4874884
    Abstract: Process for producing adiponitrile by the zerovalent nickel catalyzed hydrocyanation of pentenenitriles is improved by using a synergistic combination of promoters selected in accordance with the reaction kinetics of the synthesis.
    Type: Grant
    Filed: February 14, 1989
    Date of Patent: October 17, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ronald J. McKinney, Robert B. Osborne
  • Acceleration of diene hydrocyanation
    Patent number: 4810815
    Abstract: Process of polyene hydrocyanation, in particular diene hydrocyanation, wherein a promotionally effective amount of any acid with a pK.sub.a above about 2 and below and 14, preferably aryl alcohols such as phenol and cresols, is used.
    Type: Grant
    Filed: November 4, 1987
    Date of Patent: March 7, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Henry E. Bryndza
  • Hydrocyanation of butadiene
    Patent number: 4714773
    Abstract: Hydrocyanation of butadiene using a mixed ligand zerovalent nickel catalyst wherein the mixture of phosphite ligands there is 10 to 65 mol percent phenyl, and a complemental amount of meta- and para-tolyl.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: December 22, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Morris Rapoport
  • Continuous hydrocyanation process using zinc halide promoter
    Patent number: 4705881
    Abstract: Process for production of dinitriles using zero-valent nickel catalysts having low ligand ratio, and low amounts of zinc halide as the promoter.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: November 10, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Morris Rapoport