Basf Aktiengesellschaft

Hoechst Aktiengesellschaft

Basfaktiengesellschaft

Basf Se Corporation

Jakob Fischer

Wolfgang Siegel

Klaus Mundinger

Wolfgang Anton Herrmann

Christian Kocher

Martina Elison

Rocco Paciello

Martin Fischer

Heiko Maas

Michael R&ouml;per

Volker Bomm

Jochem Henkelmann

Robert Baumann

Manfred Julius

Armin Stamm

Tim Jungkamp

Rolf Schneider

Dagmar Pascale Kunsmann-Keitel

Gerald Meyer

Lorenz Siggel

Dagmar Pascale Keitel

Karl Ofele

Pascale Dagmar Kunsmann-Keitel

Phosphites

Catalyst comprising a complex of a metal from subgroup VIII based on a bidentate phosphonite ligand, and method for producing nitriles

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.

Catalyst comprising a complex of a metal of subgroup viii based on a phosphinite ligand, and a method for hydroformylation

Catalyst comprising a complex of a metal of subgroup VIII, on the basis of a phosphonite ligand and method for hydroformylation

Catalyst comprising at least one nickel(0) complex based on a phosphonite ligand, and the preparation of nitriles

The invention relates to a process for the preparation of &agr;-chloronitriles by reaction of cyanohydrins of aldehydes or ketones with phosgene using a phosphine oxide as catalyst.

&agr;-chloronitriles production method

A catalyst comprising at least one nickel(0) complex which comprises at least one mono-, bi- or multidentate phosphonite ligand of the formula I

Catalyst comprising at least one phosphonite ligand based nickel (O) complex and method for the production of nitriles

The disclosure is a process for preparing mixtures of monoolefinic C,mononitriles having nonconjugated C&boxH;C&mdash; and C&equiv;N bonding by catalytic hydrocyanation of a hydrocarbon mixture containing 1,3-butadiene, by first diminishing the proportion of those components in the hydrocarbon mixture which impair the catalytic hydrocyanation and then subjecting the resulting mixture to catalytic hydrocyanation.

Monoolefinic C5 mononitriles, method for the production and the use thereof

1,3-Dimethylimidazolium 4-carboxylate is prepared by reacting 1-methylimidazole with dimethyl carbonate optionally in the presence of a solvent in accordance with the following reaction scheme:

Process for the preparation of 1,3-dimethylimidazolium 4-carboxylate

A process for preparing mixtures of monoolefinic C,mononitriles with nonconjugated C&boxH;C and C&equiv;N bonds by catalytic hydrocyanation of 1,3-butadiene or a 1,3-butadiene-containing hydrocarbon mixture, wherein the hydrocyanation takes place in the presence of a catalyst which comprises at least one metallocene-phosphorus(III)-nickel(0) complex which comprises at least one monodentate or bidentate metallocene-phosphorus(III) ligand of the formula I

Method for producing mixtures of monoolefinic C5-mononitriles by catalytic hydrocyanation

Cyanoacetic esters are prepared by reacting a corresponding monochloroacetic ester with hydrogen cyanide in the presence of a base, where the base is a compound selected from the group consisting of tertiary amines, salts of carbonic acid, salts of carbonic acid monoesters, salts of carboxylic acids, amidines, guanidines and aromatic N-heterocyclic compounds.

Preparation of cyanoacetic esters

In a process for preparing 3-cyano-3,5,5-trimethylcyclohexanone by reacting isophorone with hydrogen cyanide at from 80 to 220.degree. C. in the presence of a catalyst, the reaction is carried out in the presence of the betaine 1,3-dimethylimidazolium-4-carboxylate.

Preparation of 3-cyano-3, 5, 5-trimethylcyclohexanone

Metal complexes with heterocycles carbenes

The preparation of aromatic olefins from haloaromatics and olefins (Heck reaction) is carried out in the presence of palladium complexes as catalysts, which complexes contain heterocyclic carbenes as ligands.

Process for preparing aromatic olefins

A process for the hydroformylation of olefins and olefinically unsaturated compounds in the presence of cobalt or rhodium complexes which contain, as complexing ligands, heterocyclic carbenes and, if desired, further ligands.

Process for preparing aldehydes

Growing community of inventors

Kirchdorf, Germany

Jakob Fischer