摘要:
Disclosed is a process for the co-production of aromatic carboxylic esters and alkyl iodides by the carbonylation of aromatic iodides in the presence of an alkanol and a palladium catalyst.
摘要:
This invention relates to a novel carbonylation process for the production of aromatic carboxylic acids. More particularly, this invention relates to a process for the carbonylation of aromatic iodides with carbon monoxide in the presence of a nickel catalyst in a hydrocarbon carboxylic acid reaction medium to prepare aromatic carboxylic acids.
摘要:
Disclosed is a process for the co-production of aromatic carboxylates and alkyl iodides by the carbonylation of aromatic iodides in the presence of an alkanol and a nickel catalyst.
摘要:
The present invention provides a process for the preparation of acetaldehyde from hydrogen, carbon monoxide, and methanol. The process comprises conducting the reaction in the presence of a catalyst system comprising cobalt, platinum, and iodide. The cobalt catalyst component is present in a concentration of about 0.01 to 1 weight percent, the platinum catalyst component is present in a concentration of about 0.03 to 3 weight percent, and the iodide catalyst component is present in a concentration of about 0.1 to 40 weight percent, as defined herein. The weight ratio of cobalt to platinum is about 1:0.3 to 1:35. The process is preferably conducted at a temperature of 160.degree.-230.degree. C. and a pressure of 10,000-70,000 kPa.
摘要:
Disclosed is a process for the co-production of aromatic carboxylic esters and alkyl iodides by the carbonylation of aromatic iodides in the presence of an ether and a ruthunium catalyst.
摘要:
Disclosed is a process for the production of aromatic carboxylic acids by the carbonylation of aromatic iodides in the presence of a rhodium catalyst and a Bronsted base in a hydrocarbon carboxylic acid reaction medium.
摘要:
Disclosed is a process for the co-production of an aromatic carboxylic esters and alkyl iodide by the carbonylation of an aromatic iodide in the absence of a Bronsted base and in the presence of an ether and a nickel catalyst.
摘要:
A process for preparing an aromatic carboxylic ester and an alkyl iodide by carbonylating an aromatic iodide in the presence of an ether, a catalytic amount of a transition metal and a strong acid promoter.
摘要:
Disclosed is a process for the co-production of aromatic carboxylates and alkyl iodides by the carbonylation of aromatic iodides in the presence of an alkanol and a rhodium catalyst.
摘要:
Disclosed is a process for the co-production of aromatic carboxylic esters and alkyl iodides by the carbonylation of aromatic iodides in the presence of an ether and a rhodium catalyst.