Abstract: The invention is directed to methods of making organic compounds by metathesis and hydrocyanation. The method of the invention may be used, for example, to make industrial important organic compounds such as diacids, diesters, acid-amines, acid-alcohols, acid-nitriles, ester-amines, ester-alcohols, and ester-nitriles.
Type:
Grant
Filed:
April 10, 2009
Date of Patent:
November 25, 2014
Assignee:
Elevance Renewable Sciences, Inc.
Inventors:
Timothy W. Abraham, Hiroki Kaido, Choon Woo Lee, Richard L. Pederson, Yann Schrodi, Michael John Tupy, Alexandre A. Pletnev
Abstract: A process for the hydrocyanation of a hydrocarbon-based compound having at least one site of ethylenic unsaturation into a nitrile compound includes reaction thereof, in a liquid medium, with hydrogen cyanide in the presence of a catalyst containing a metal element selected from among the transition metals and an organophosphorus ligand, wherein the organophosphorus ligand is a mixture of at least one monodentate organophosphite compound and at least one monodentate organophosphine compound; the subject process is especially useful for the synthesis of adiponitrile from butadiene.
Abstract: The invention is directed to methods of making organic compounds by metathesis and hydrocyanation. The method of the invention may be used, for example, to make industrial important organic compounds such as diacids, diesters, acid-amines, acid-alcohols, acid-nitriles, ester-amines, ester-alcohols, and ester-nitriles.
Type:
Application
Filed:
April 10, 2009
Publication date:
October 15, 2009
Inventors:
Timothy W. Abraham, Hiroki Kaido, Choon Woo Lee, Richard L. Pederson, Yann Schrodi, Michael John Tupy, Alexandre A. Pletnev
Abstract: A catalyst comprising at least one complex of a metal of transition group VIII comprising at least one monodentate, bidentate or multidentate phosphinamidite ligand in which the phosphorus atom and the oxygen atom of the phosphinamidite group form part of a 5- to 8-membered heterocycle can be used for the hydroformylation and hydrocyanation of compounds containing at least one ethylenically unsaturated double bond. The phosphinamidite ligand is, for example, represented by the following formulae wherein represents an optionally substituted 5- to 8-membered heterocycle wherein A represents carbon ring members; represents an optionally substituted N-bonded heterocycle wherein (Het) indicates optional ring heteroatoms in addition to the N; and B is a carbon-carbon single bond or a divalent bridging group.
Type:
Grant
Filed:
March 23, 2000
Date of Patent:
February 8, 2005
Assignee:
BASF Aktiengesellschaft
Inventors:
Wolfgang Ahlers, Heiko Maas, Michael Röper
Abstract: A catalyst which comprises at least one complex of a metal of subgroup VIII having at least one bidentate phosphonite ligand of the formula I
or salts and mixtures thereof, a process for the preparation of mixtures of monoolefinic C5-mononitriles, a process for the catalytic isomerization of branched aliphatic monoalkenenitriles and a process for the preparation of adiponitrile.
Type:
Grant
Filed:
November 30, 2000
Date of Patent:
February 18, 2003
Assignee:
BASF Aktiengesellschaft
Inventors:
Jakob Fischer, Wolfgang Siegel, Dagmar Pascale Keitel, Lorenz Siggel
Abstract: The invention relates to a catalyst which comprises at least one complex of a metal of group VIII, which comprises at least one uni-, bi- or multidentate phosphinite ligand in which the phosphorus atom and the oxygen atom of the phosphinite group are part of a 5- to 8-membered heterocycle, and to processes for hydroformylation and hydrocyanation of compounds which contain at least one ethylenic double bond in the presence of a catalyst of this type.
Type:
Grant
Filed:
December 12, 2000
Date of Patent:
November 26, 2002
Assignee:
BASF Aktiengesellschaft
Inventors:
Heiko Maas, Rocco Paciello, Michael Röper, Jakob Fischer
Abstract: Paramethyl-substituted hindered phenols are selectively oxidized by contacting with an oxidizing agent at elevated temperatures in the presence of a heterogeneous oxidative coupling catalyst. In the absence of an optional nucleophile the products comprise carbon-carbon oxidative coupling products. In the presence of a nucleophile, addition products result that may be further oxidized by continued exposure to the oxidizing agent to yield substituted p-hydroxybenzaldehydes.
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.