Patent classifications
C07B43/06
PROCESSES FOR THE PREPARATION OF A DIARYLTHIOHYDANTOIN COMPOUND
Disclosed are processes and intermediates for the preparation of compound (X), which is currently being investigated for the treatment of prostate cancer.
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PROCESSES FOR THE PREPARATION OF A DIARYLTHIOHYDANTOIN COMPOUND
Disclosed are processes and intermediates for the preparation of compound (X), which is currently being investigated for the treatment of prostate cancer.
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Ligand-Enabled meta-C-H Activation Using a Transient Mediator
An alternative approach to formation of a C-C bond at a meta-position of an aromatic compound is disclosed that employs an ethylenically unsaturated bicyclic compound as a transient mediator to achieve meta-selective C-H activation with a simple and common ortho-directing group. The use of a pyridine-based ligand assists in relaying the palladium catalyst to the meta-position by the unsaturated bicyclic compound following initial ortho-C-H activation.
Ligand-Enabled meta-C-H Activation Using a Transient Mediator
An alternative approach to formation of a C-C bond at a meta-position of an aromatic compound is disclosed that employs an ethylenically unsaturated bicyclic compound as a transient mediator to achieve meta-selective C-H activation with a simple and common ortho-directing group. The use of a pyridine-based ligand assists in relaying the palladium catalyst to the meta-position by the unsaturated bicyclic compound following initial ortho-C-H activation.
Synthesis and application of microbubble-forming compounds
The present disclosure is directed to fatty-acid glycerol ester derivative compounds containing a targeting bisphosphonate group. The disclosure further includes pharmaceutical or biomedical compositions comprising these compounds, and methods of using these compounds and compositions forming microbubbles. The microbubbles have affinity for metal-containing, especially calcium-containing, bodies and/or biological targets. In certain embodiments, these compositions are useful for providing targeted placement of microbubbles capable of cavitation on application of high frequency energy.
Synthesis and application of microbubble-forming compounds
The present disclosure is directed to fatty-acid glycerol ester derivative compounds containing a targeting bisphosphonate group. The disclosure further includes pharmaceutical or biomedical compositions comprising these compounds, and methods of using these compounds and compositions forming microbubbles. The microbubbles have affinity for metal-containing, especially calcium-containing, bodies and/or biological targets. In certain embodiments, these compositions are useful for providing targeted placement of microbubbles capable of cavitation on application of high frequency energy.
ORGANIC REACTIONS CARRIED OUT IN AQUEOUS SOLUTION IN THE PRESENCE OF A HYDROXYALKYL(ALKYL)CELLULOSE OR AN ALKYLCELLULOSE
The present invention relates to a method of carrying out an organic reaction in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose.
Direct oxidative amination of hydrocarbons
Provided is a process for converting a hydrocarbon comprising at least one C—H bond to a nitrogen-functionalized product. The process comprises contacting a hydrocarbon and (i) an oxidizing electrophile comprising (a) a main group element or transition metal in oxidized form and (b) at least one nitrogen-containing ligand, or (ii) an oxidant and a reduced form of an oxidizing electrophile comprising (a) a main group element or transition metal and (b) at least one nitrogen-containing ligand, in a solvent to provide the nitrogen-functionalized product and an electrophile reduction product. Further provided is an oxidizing composition comprising the oxidizing electrophile with at least one nitrogen-containing ligand and a non-oxidizable liquid.
Direct oxidative amination of hydrocarbons
Provided is a process for converting a hydrocarbon comprising at least one C—H bond to a nitrogen-functionalized product. The process comprises contacting a hydrocarbon and (i) an oxidizing electrophile comprising (a) a main group element or transition metal in oxidized form and (b) at least one nitrogen-containing ligand, or (ii) an oxidant and a reduced form of an oxidizing electrophile comprising (a) a main group element or transition metal and (b) at least one nitrogen-containing ligand, in a solvent to provide the nitrogen-functionalized product and an electrophile reduction product. Further provided is an oxidizing composition comprising the oxidizing electrophile with at least one nitrogen-containing ligand and a non-oxidizable liquid.
Manganese based complexes and uses thereof for homogeneous catalysis
The present invention relates to novel manganese complexes and their use, inter alia, for homogeneous catalysis in (1) the preparation of imine by dehydrogenative coupling of an alcohol and amine; (2) C—C coupling in Michael addition reaction using nitriles as Michael donors; (3) dehydrogenative coupling of alcohols to give esters and hydrogen gas (4) hydrogenation of esters to form alcohols (including hydrogenation of cyclic esters (lactones) or cyclic di-esters (di-lactones), or polyesters); (5) hydrogenation of amides (including cyclic dipeptides, lactams, diamide, polypeptides and polyamides) to alcohols and amines (or diamine); (6) hydrogenation of organic carbonates (including polycarbonates) to alcohols or hydrogenation of carbamates (including polycarbamates) or urea derivatives to alcohols and amines; (7) dehydrogenation of secondary alcohols to ketones; (8) amidation of esters (i.e., synthesis of amides from esters and amines); (9) acylation of alcohols using esters; (10) coupling of alcohols with water and a base to form carboxylic acids; and (11) preparation of amino acids or their salts by coupling of amino alcohols with water and a hydrogenative coupling of alcohols and amines; (13) preparation of imides from diols. ##STR00001## ##STR00002##