Patent classifications
C07D301/00
Vinyl-containing compounds and processes for making the same
The present invention provides a process for forming vinyl-containing compounds including the steps of: a) reacting in a nitrogen atmosphere a dicarboxylic acid and/or anhydride and a functional mono or polyfunctional alcohol to provide a hydroxyl-containing polyester; b) reacting the hydroxyl-containing polyester with a vinyl-containing organic acid in the presence of an esterification catalyst, a polymerization inhibitor and an azeotropic agent; and c) reacting the vinyl functional esterified intermediate, residual esterification catalyst and residual vinyl-containing organic acid with an epoxy to provide the vinyl-containing compound.
Vinyl-containing compounds and processes for making the same
The present invention provides a process for forming vinyl-containing compounds including the steps of: a) reacting in a nitrogen atmosphere a dicarboxylic acid and/or anhydride and a functional mono or polyfunctional alcohol to provide a hydroxyl-containing polyester; b) reacting the hydroxyl-containing polyester with a vinyl-containing organic acid in the presence of an esterification catalyst, a polymerization inhibitor and an azeotropic agent; and c) reacting the vinyl functional esterified intermediate, residual esterification catalyst and residual vinyl-containing organic acid with an epoxy to provide the vinyl-containing compound.
Method for producing 4,4,7-trifluoro-1,2,3,4-tetrahydro-5H-1-benzazepine compound and intermediate used in the method
The present invention provides a method for producing a 4,4,7-trifluoro-1,2,3,4-tetrahydro-5H-1-benzazepine compound which has an superior agonistic activity to an arginine vasopressin V2 receptor and is useful as an active ingredient for a pharmaceutical composition for preventing and/or treating urinary frequency, urinary incontinence, enuresis, central diabetes insipidus, nocturia, nocturnal enuresis, or the like; and useful intermediates for use in the methods. The production method of the present invention is suitable for the industrial production of a medicament, because of a smaller number of steps, a higher yield, and a lower cost, as compared with the methods in the related art.
GRAPHENE COMPOUND AND MANUFACTURING METHOD THEREOF, ELECTROLYTE, AND POWER STORAGE DEVICE
To provide a graphene compound having an insulating property and an affinity for lithium ions. To increase the molecular weight of a substituent included in a graphene compound. To provide a graphene compound including a chain group containing an ether bond or an ester bond. To provide a graphene compound including a substituent containing one or more branches. To provide a graphene compound including a substituent including at least one of an ester bond and an amide bond.
GRAPHENE COMPOUND AND MANUFACTURING METHOD THEREOF, ELECTROLYTE, AND POWER STORAGE DEVICE
To provide a graphene compound having an insulating property and an affinity for lithium ions. To increase the molecular weight of a substituent included in a graphene compound. To provide a graphene compound including a chain group containing an ether bond or an ester bond. To provide a graphene compound including a substituent containing one or more branches. To provide a graphene compound including a substituent including at least one of an ester bond and an amide bond.
Methods of synthesizing a prostacyclin analog
The present invention provides processes for preparing a prostacyclin analog of Formula (I) or a pharmaceutically acceptable salt thereof, wherein R.sup.10 is a linear or branched C.sub.1-6 alkyl. The processes of the present invention comprise steps that generate improved yields and fewer byproducts than traditional methods. The processes of the present invention employ reagents (e.g., the oxidizing reagent) that are less toxic that those used in the traditional methods (e.g., oxalyl chloride). Many of the processes of the present invention generate intermediates with improved e.e. and chemical purity; thereby eliminating the need of additional chromatography steps. And, the processes of the present invention are scalable to generate commercial quantities of the final compound.
Methods of synthesizing a prostacyclin analog
The present invention provides processes for preparing a prostacyclin analog of Formula (I) or a pharmaceutically acceptable salt thereof, wherein R.sup.10 is a linear or branched C.sub.1-6 alkyl. The processes of the present invention comprise steps that generate improved yields and fewer byproducts than traditional methods. The processes of the present invention employ reagents (e.g., the oxidizing reagent) that are less toxic that those used in the traditional methods (e.g., oxalyl chloride). Many of the processes of the present invention generate intermediates with improved e.e. and chemical purity; thereby eliminating the need of additional chromatography steps. And, the processes of the present invention are scalable to generate commercial quantities of the final compound.
Branched siloxanes and methods for synthesis
The present invention describes branched and functionalized siloxanes and methods for making such compounds. The compounds have a variety of uses. One preferred application is as novel planarizing material for lithogaphy, in which case functionalized branched siloxane, such as an epoxy-modified branched siloxane is particularly useful.
Branched siloxanes and methods for synthesis
The present invention describes branched and functionalized siloxanes and methods for making such compounds. The compounds have a variety of uses. One preferred application is as novel planarizing material for lithogaphy, in which case functionalized branched siloxane, such as an epoxy-modified branched siloxane is particularly useful.
CATALYST SYSTEM FOR PREPARING PROPYLENE OXIDE
A catalytic system containing a titanium zeolite of structure type MWW optionally containing zinc and containing at least one of an inorganic potassium salt and an organic potassium salt is provided. The catalyst system is useful in the preparation of propylene oxide.