B01J31/183

PROCESS FOR THE PHOTOCATALYTIC ALLYLIC OXIDATION OF OLEFINS USING CARBON DIOXIDE

The present invention relates to a novel method for photocatalytic oxidation of allylic C—H bonds present in alkenes containing at least three carbon atoms. In this newly disclosed method, such alkenes, when reacted with carbon dioxide (CO.sub.2) in an organic solvent containing a catalyst comprising of a supported molecular complex of transition metal ions under conditions of ambient temperature and pressure using a readily available household LED lamp, yield oxygenated products. The developed method represents a unique way to use CO.sub.2 as an oxygen transfer agent to unsaturated organic compounds along with the formation of CO as a co-product using light as an energy source.

Transition metal-based heterogeneous carbonylation reaction catalyst and method for preparing lactone or succinic anhydride using catalyst

A transition metal-based heterogeneous carbonylation reaction catalyst has an excellent catalytic activity and selectivity in the carbonylation reaction and is easily separated from a product, by crosslinking polymerizing a transition metal-based homogeneous catalyst unit through a Friedel-Craft reaction. The catalyst may be used in a method for preparing lactone. The transition metal-based heterogeneous carbonylation reaction catalyst allows to produce lactone or succinic anhydride with an epoxide compound while showing a high selectivity, and can be applied in industrial very usefully due to easy separation from the product and thus reusing thereof.

Dicarbonyl ruthenium and osmium catalysts

The disclosure relates to dicarbonyl complexes of ruthenium and osmium with bi- and tridentate nitrogen and phosphine ligands. The disclosure relates to methods for preparing these complexes and the use of these complexes, isolated or prepared in situ, as catalysts for reduction reactions of ketones and aldehydes both via transfer hydrogenation or hydrogenation with hydrogen.

COMPOSITION OF MATTER
20170361310 · 2017-12-21 ·

The method relates to the field of asymmetric allylic amination and comprises preparing a chiral N-substituted allylic amine compound from the corresponding allylic substrates and substituted hydroxylamines, in the presence of a catalyst, said catalyst comprising copper compounds and a chiral ligand. Examples of chiral amine compounds which can be made using the method include Vigabatrin, Ezetimibe Terbinafine, Naftifine 3-methylmorphine, Sertraline, Cinacalcet, Mefloquine hydrochloride, and Rivastigmine. There are over 20,000 known bioactive molecules with chiral N-substituted allylic amine substructure. The method may also be used to produce non-natural chiral β-aminoacid esters, a sub-class of chiral N-substituted allylic amine compounds. Examples of β-aminoacid ester which can be produced by the disclosed method, include, but are not limited to, N-(2-methylpent-1-en-3-yl)benzenamine and Ethyl 2-methylene-3-(phenylamino)butanoate. Further, the products of the method described herein can be used to produce chiral heterocycles and bioactive molecules or materials. A novel chiral copper-ligand nitrosoarene complex is also set forth.

PROCESS FOR PREPARING SUBSTITUTED INDOLE COMPOUNDS

The present invention is directed to a process for preparing Substituted Indole Compounds of Formula (I): wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined herein. These indole compounds are useful as synthetic intermediates for making inhibitors of HCV NS5A.

##STR00001##

METHODS, COMPOSITIONS, AND KITS USING HETEROGENEOUS CATALYSTS
20170327532 · 2017-11-16 ·

Described herein are methods, compositions and kits utilizing heterogeneous metal catalysts for the preparation of cycloaddition compounds, such as triazoles and biomolecules.

CATALYTIC CARBON FIBER PREPARATION METHODS
20230166243 · 2023-06-01 · ·

A method of producing a catalytic carbon fiber may include: providing a carbon fiber and an aminated macrocycle, mixing the carbon fiber and the aminated macrocycle with a solvent; and reacting the carbon fiber and the aminated macrocycle to form an amide bond between the carbon fiber and the aminated macrocycle thereby forming the catalytic carbon fiber.

PROCESS FOR PRODUCING METHANOL

A process for catalyzed reaction of CO and H.sub.2 into methanol includes the step of reacting the CO and H.sub.2 with a catalyst comprising a transition metal and at least one Lewis basic ligand together with at least one nucleophilic promoter so as to produce the methanol as a product.

SOLID-SUPPORTED PALLADIUM (II) COMPLEX AS A HETEROGENEOUS CATALYST FOR CROSS COUPLING REACTIONS AND METHODS THEREOF

A solid-supported catalyst ligand which chelates palladium (II) species to form a complex that functions as a heterogeneous catalyst that is stable and can be recycled without significantly losing any catalytic activity in a variety of chemical transformations, a method for producing the solid-supported catalyst ligand and a method for catalyzing a palladium cross-coupling reaction, such as the Suzuki-Miyaura, Mizoroki-Heck, and Sonagashira reactions.

LIGHT UPCONVERSION MICROCAPSULES

A composition, method, and article of manufacture are disclosed. The composition is a microcapsule that includes a transparent shell encapsulating a mixture comprising light upconversion molecules. The method is a method of forming a microcapsule, which includes obtaining light upconversion molecules, forming an emulsion of the light upconversion molecules and a shell formation solution, and encapsulating the light upconversion molecules in a transparent shell. The article of manufacture comprises the microcapsule.