| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 562406000 | Preparation by carbonylation | 7 |
| 20100022799 | CARBONYLATION OF CONJUGATED DIENES - A process for the carbonylation of a conjugated diene is described. The process comprises the steps of reacting a conjugated diene with carbon monoxide and a co-reactant having an active hydrogen in the presence of a solvent system and a catalyst system. The solvent system comprises a an aromatic carboxylic acid or, under some conditions, any carboxylic acid. The catalyst system is obtainable by combining: a. a metal of Group 8, 9 or 10 or a compound thereof: and b. a bidentate ligand of general formula (I) X | 01-28-2010 |
| 20120178963 | METAL-CATALYSED CARBONYLATION OF UNSATURATED COMPOUNDS - The invention provides a method for the hydroxycarbonylation, alkoxycarbonylation, aryloxycarbonylation or thiocarbonylation of an unsaturated molecule. The method includes a hydroxycarbonylation, alkoxycarbonylation, aryloxycarbonylationor thiocarbonylation reaction on the unsaturated molecule in which a complex including a ligand comprising a [n,n′]cyclophane comprising two non-fused monocyclic aromatic rings bridged by two linear and aliphatic linkages, in which each of the non-fused monocyclic aromatic rings is substituted with a phosphorus atom-containing substituent, is used to catalyse the reaction. | 07-12-2012 |
| 20120323038 | CARBOXYLATION OF TERMINAL ALKYNES - The present invention describes a process for converting a terminal alkyne into an alkynoic acid. In this process the alkyne is exposed to carbon dioxide in the presence of a copper (I) species, a base and a complexing agent capable of complexing copper (I). | 12-20-2012 |
| 20130046108 | METHOD FOR PREPARING 2,5-DIMETHYLPHENYLACETIC ACID - Provided is a method for preparing | 02-21-2013 |
| 20130281729 | CONTINUOUS METHOD FOR THE CARBONYLATION OF ALCOHOLS, IN PARTICULAR OF PHENYL ALCOHOLS - Organic synthesis, i.e., the synthesis of carboxylic acids by direct carbonylation of alcohols in a continuous process, and more particularly, the synthesis of phenylalkylic acids, which are synthesis intermediates useful in pharmaceutical chemistry, by direct carbonylation of phenyl alkyl alcohols. | 10-24-2013 |
| 20130281730 | PREPARATION OF 5-AMINOSALICYLIC ACID BY GAS PHASE CATALYTIC CARBOXYLATION - Disclosed is a process for preparing 5-aminosalicylic acid by gas phase catalytic carboxylation, characterized in that carbon dioxide is introduced into a system of p-acetaminophenol and a basic compound at a temperature of 150° C.˜220° C. and a pressure of 0.5˜5.0 MPa in the presence of a catalyst, so as to carry out a gas phase catalytic carboxylation reaction to form a 5-aminosalicylate, and the crude product 5-aminosalicylate is separated, and then acidified to prepare 5-aminosalicylic acid (5-ASA). Since the gas phase catalytic reaction replaces a solid phase thermo-chemical reaction, the reaction is significantly improved in terms of the process flow, reaction conditions, product quality and energy consumption. In addition, the reaction has a short reaction time, good selectivity, high yield and no formation of wastes during the reaction, and is suitable for industrial production. | 10-24-2013 |
| 20150025269 | PROCESS FOR PREPARATION OF ALKYNYL CARBOXYLIC ACIDS - The invention provides a simple, efficient, environmental friendly catalytic system for the direct carboxylation reaction using CO | 01-22-2015 |
