摘要:
Disclosed is a process for production of aromatic carboxylic acids by the carbonylation of aromatic iodides in the presence of a ruthenium catalyst, a Bronsted base, and an iodide 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 ruthenium catalyst.
摘要:
Disclosed is a process for the production of aromatic carboxylic acids by the carbonylation of aromatic bromides in the presence of a nickel catalyst, a Bronsted base and an iodide promoter.
摘要:
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 an iridium 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 palladium catalyst.
摘要:
Disclosed is a process for dehydrohalogenating an aromatic bromide or iodide by contacting the aromatic halide with hydrogen at elevated pressure in the presence of an alkyl halide-forming compound and a Group VIII metal catalyst. The presence of the alkyl halide-forming compound, such as an alkanol, diol, triol or derivative thereof, facilitates the dehydrohalogenation reaction and permits the recovery of the halogen ad alkyl halides from which the bromide and iodide values can be economically recovered.
摘要:
A method of iodinating hydroxyaromatic and aminoaromatic compounds is disclosed, comprising reacting the hydroxyaromatic or aminoaromatic compound with an aqueous solution of a metal iodide and a metal hypochlorite at a temperature about -100.degree. to 100.degree. C. in the presence of an alcohol having 1-10 carbon atoms.
摘要:
A process for the production of aromatic carboxylic acids which comprises carbonylating substituted iodoaromatic compounds in the presence of carbon monoxide, a catalytic amount of a transition metal catalyst, and a Bronsted base in a mixture of a carboxylic acid and water under aromatic carboxylic acid forming conditions of temperature and pressure.
摘要:
A process comprising preparing an aromatic carboxylic ester and an alkyl iodide by carboxylating an aromatic iodide in the presence of an alkylating agent and a catalytic amount of a transition metal under aromatic carboxylic ester and alkyl iodide forming conditions of temperature, pressure and ultrasound.
摘要:
Disclosed is a process for the recovery of the iodine and alkyl value of an alkyl iodide by a process comprising (I) carbonylating an alkyl iodide by a process presence of a carbonylation catalyst, carbon monoxide and a hydrogen donor to obtain a mixture of hydrogen iodide and an acyl compound and (II) oxidizing the hydrogen iodide of step (I) to elemental iodine.