The Reactant Is An Acyclic Nitrile Containing Carbon To Carbon Unsaturation (e.g., Dimerization Or Oligomerization Of Acrylonitrile, Etc.) Patents (Class 558/361)
Amalgam utilized (Class 558/362)
Organic phosphorus compound utilized (Class 558/363)
Heavy metal or aluminum containing material utilized (Class 558/364)
  • Preparation of styryl compounds
    Patent number: 6828455
    Abstract: Process for preparing compounds of the formula (I) characterized in that an acrylic compound of the formula is reacted with an amine of the formula in which R1, R2, R3, R4 and Z are as defined in the description.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: December 7, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Josef-Walter Stawitz, Ulrich Feldhues
  • Preparation of styryl compounds
    Publication number: 20030181752
    Abstract: Process for preparing compounds of the formula (I) 1
    Type: Application
    Filed: January 15, 2003
    Publication date: September 25, 2003
    Inventors: Josef - Walter Stawitz, Ulrich Feldhues
  • Selective dimerization of pentenenitrile
    Patent number: 5834617
    Abstract: The present invention relates to a process for selective dimerization of 2-pentenenitrile or mixtures of 2- and 3-pentenenitrile in the presence of a strong base to form 1,3-dicyano-2-ethyl-3-hexene.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: November 10, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William Allen Beck, Frank Edward Herkes, David Page Higley
  • Process for the preparation of a mixture of aminomethylenated glutaconic acid dinitriles
    Patent number: 5475131
    Abstract: Aminomethylenated glutaconic acid dinitriles of the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, straight-chain or branched C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -alkenyl, C.sub.2 -C.sub.8 -alkoxyalkyl, C.sub.4 -C.sub.8 -alkoxyalkenyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.6 -C.sub.12 -aryl, C.sub.7 -C.sub.10 -aralkyl or a 5- to 8-membered, saturated or unsaturated heterocyclic ring containing 1 or 2 heteroatoms from the group comprising N, O and S,are obtained by reacting 3-amino-acrylonitriles of the formula ##STR2## in which the radicals R.sup.1 and R.sup.2 have the meaning mentioned, with one another at from 0.degree. to 100.degree. C. in the presence of at least 0.5 equivalents of an acidic compound.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: December 12, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventor: Helmut Kraus
  • Method of producing adiponitrile
    Patent number: 4681968
    Abstract: A first row transition metal catalyzed procedure for the production of adiponitrile from acrylonitrile comprising mixing a first row transition metal salt, acrylonitrile, metallic reducing agent and solvent, heating the solution, and adding a quench solution to the mixture comprising a proton donor material having a 0<pk.sub.a <12 and an organic amide solvent for the proton donor material. Preferably, an organic ligand is added to the solution prior to heating and adding the quench solution.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: July 21, 1987
    Assignee: The Standard Oil Company
    Inventors: Dean T. Tsou, Marc W. Blachman, James D. Burrington