摘要:
The invention provides a process for the hydrolysis of acrylonitrile to acrylic acid, and for the hydrolysis of methacrylonitrile to methacrylic acid, in high yield and at high concentration with high specificity. Acrylonitrile or methacrylonitrile is hydrolyzed in a suitable aqueous reaction mixture by a catalyst characterized by a nitrile hydratase and amidase activity of Comamonas testosteroni 5-MGAM-4D, producing the corresponding acid. The acrylic acid or methacrylic acid is isolated as the acid or corresponding salt.
摘要:
Accordingly, the current invention provides a method for the manufacture of an ether or ester of 5-hydroxymethyl-furfural by reacting a hexose-containing starting material or HMF with an alcohol or an organic acid dissolved into an ionic liquid, using a metal chloride as catalyst.
摘要:
The present invention relates to compositions of matter that are useful as ionic liquids. The compositions of the invention are based on an N-substituted pyrrolidinone, said pyrrolidinone having a pendant ammonium cation that is separated from the pyrrolidone ring by a variable length alkyl spacer. The compositions comprise fluoroalkyl sulfonate anions.
摘要:
The present invention relates to a process comprising using ionic liquids for the polycondensation of 1,3-propanediol reactants to produce polytrimethylene ether glycol and copolymers thereof.
摘要:
Process for converting certain lactones to their alpha-methylene substituted forms that not only exhibits high initial activity (conversion), but also maintains a high level of activity with time on stream.
摘要:
This invention relates to a process for producing a mixture of levulinic acid esters and formic acid esters from biomass and olefins, and the composition prepared therefrom. This invention also relates to usage of the mixture of these esters as fuel and as fuel additives for gasoline fuel, diesel fuel, and biofuel.
摘要:
This invention relates to a process for producing 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with aryl or alkyl cyano compounds utilizing a metal catalyst, which is optionally supported.
摘要:
This invention relates to a process for producing N-aryl-2-lactams and N-cycloalkyl-2-lactams by reductive amination of lactones with aryl amines utilizing a metal catalyst, which is optionally supported.
摘要:
Disclosed is a method whereby 3,4-tetrahydrofurandiol is hydrogenated in the presence of Rh, Re, Pd, Ru and Ni catalysts, optionally supported, to form tetrahydrofuran and its precursors.