Patent classifications
C07C33/26
Method for preparing 1,3-cyclohexanedimethanol
The present invention relates to a method for preparing high-purity 1,3-cyclohexanedimethanol capable of achieving a high conversion rate by allowing most of the reactant to participate in the reaction, and of increasing reaction efficiency and economic efficiency by further simplifying the reaction process, while minimizing by-products within a shorter period of time. Specifically, the method for preparing 1,3-cyclohexanedimethanol includes reducing 1,3-cyclohexanedicarboxylic acid in the presence of a metal catalyst, which is fixed to a silica support and includes a ruthenium (Ru) compound, a tin (Sn) compound and a platinum (Pt) compound in a weight ratio of 1:0.8 to 1.2:1.2 to 2.4.
Method for preparing 1,3-cyclohexanedimethanol
The present invention relates to a method for preparing high-purity 1,3-cyclohexanedimethanol capable of achieving a high conversion rate by allowing most of the reactant to participate in the reaction, and of increasing reaction efficiency and economic efficiency by further simplifying the reaction process, while minimizing by-products within a shorter period of time. Specifically, the method for preparing 1,3-cyclohexanedimethanol includes reducing 1,3-cyclohexanedicarboxylic acid in the presence of a metal catalyst, which is fixed to a silica support and includes a ruthenium (Ru) compound, a tin (Sn) compound and a platinum (Pt) compound in a weight ratio of 1:0.8 to 1.2:1.2 to 2.4.
AMYLASE INHIBITOR COMPOUNDS, METHODS OF THEIR USE AND COMPOSITIONS THEREOF
There are provided compounds of Formula I:
##STR00001##
various compositions thereof and methods for their use in the inhibition of -amylase.
AMYLASE INHIBITOR COMPOUNDS, METHODS OF THEIR USE AND COMPOSITIONS THEREOF
There are provided compounds of Formula I:
##STR00001##
various compositions thereof and methods for their use in the inhibition of -amylase.
METHOD FOR THE SELECTIVE CLEAVAGE OF A COMPOUND COMPRISING AN AROMATIC RING AND A C-O-C LINKAGE
A method for the selective cleavage of a compound comprising an aromatic ring and a COC linkage in the presence of a heterogeneous catalyst is provided. The heterogenous catalyst may be a supported noble metal catalyst doped with a halogen selected from the group consisting of chlorine and bromine. By using this method, it is possible to increase the selectivity and/or yield (preferably both) of aromatic compounds.
METHOD FOR THE SELECTIVE CLEAVAGE OF A COMPOUND COMPRISING AN AROMATIC RING AND A C-O-C LINKAGE
A method for the selective cleavage of a compound comprising an aromatic ring and a COC linkage in the presence of a heterogeneous catalyst is provided. The heterogenous catalyst may be a supported noble metal catalyst doped with a halogen selected from the group consisting of chlorine and bromine. By using this method, it is possible to increase the selectivity and/or yield (preferably both) of aromatic compounds.
Hafnium-based metal-organic frameworks as epoxide ring-opening catalysts
Metal-organic frameworks (MOFs) having inorganic nodes that comprise an octahedral Hf.sub.6 cluster capped by eight .sub.3-ligands and having twelve octahedral edges, wherein the .sub.3-ligands are hydroxo ligands, oxo ligands or aquo ligands; and organic linkers connecting the organic nodes, the organic linkers comprising 1,3,6,8-tetrakis(p-benzoic acid)pyrene units; wherein eight of the twelve octahedral edges of the inorganic nodes are connected to the 1,3,6,8-tetrakis(p-benzoic acid)pyrene units are provided.
Hafnium-based metal-organic frameworks as epoxide ring-opening catalysts
Metal-organic frameworks (MOFs) having inorganic nodes that comprise an octahedral Hf.sub.6 cluster capped by eight .sub.3-ligands and having twelve octahedral edges, wherein the .sub.3-ligands are hydroxo ligands, oxo ligands or aquo ligands; and organic linkers connecting the organic nodes, the organic linkers comprising 1,3,6,8-tetrakis(p-benzoic acid)pyrene units; wherein eight of the twelve octahedral edges of the inorganic nodes are connected to the 1,3,6,8-tetrakis(p-benzoic acid)pyrene units are provided.
HYDROXYL COMPOUNDS AND COMPOSITIONS FOR CHOLESTEROL MANAGEMENT AND RELATED USES
The present invention relates to novel hydroxyl compounds, compositions comprising hydroxyl compounds, and methods useful for treating and preventing a variety of diseases and conditions such as, but not limited to aging, Alzheimer's Disease, cancer, cardiovascular disease, diabetic nephropathy, diabetic retinopathy, a disorder of glucose metabolism, dyslipidemia, dyslipoproteinemia, hypertension, impotence, inflammation, insulin resistance, lipid elimination in bile, obesity, oxysterol elimination in bile, pancreatitis, pancreatitius, Parkinson's disease, a peroxisome proliferator activated receptor-associated disorder, phospholipid elimination in bile, renal disease, septicemia, metabolic syndrome disorders (e.g., Syndrome X), thrombotic disorder. Compounds and methods of the invention can also be used to modulate C reactive protein or enhance bile production in a patient. In certain embodiments, the compounds, compositions, and methods of the invention are useful in combination therapy with other therapeutics, such as hypocholesterolemic and hypoglycemic agents.
HYDROXYL COMPOUNDS AND COMPOSITIONS FOR CHOLESTEROL MANAGEMENT AND RELATED USES
The present invention relates to novel hydroxyl compounds, compositions comprising hydroxyl compounds, and methods useful for treating and preventing a variety of diseases and conditions such as, but not limited to aging, Alzheimer's Disease, cancer, cardiovascular disease, diabetic nephropathy, diabetic retinopathy, a disorder of glucose metabolism, dyslipidemia, dyslipoproteinemia, hypertension, impotence, inflammation, insulin resistance, lipid elimination in bile, obesity, oxysterol elimination in bile, pancreatitis, pancreatitius, Parkinson's disease, a peroxisome proliferator activated receptor-associated disorder, phospholipid elimination in bile, renal disease, septicemia, metabolic syndrome disorders (e.g., Syndrome X), thrombotic disorder. Compounds and methods of the invention can also be used to modulate C reactive protein or enhance bile production in a patient. In certain embodiments, the compounds, compositions, and methods of the invention are useful in combination therapy with other therapeutics, such as hypocholesterolemic and hypoglycemic agents.