C07D251/28

Methods respectively for producing 2,4,6-tris (2-hydroxy-3-methyl-4-alkoxyphenyl)-1,3,5-triazine compound and 2,4,6-tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine
10351538 · 2019-07-16 · ·

The present invention provides methods respectively for producing a 2,4,6-tris(2-hydroxy-3-methyl-4-alkoxyphenyl)-1,3,5-triazine compound and 2,4,6-tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine, both of which are improved in yield and quality. The methods according to the present invention are characterized in that a reaction of 2,4,6-tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine with an alkylating agent is carried out using a base in the presence of an alcohol or water, and are also characterized in that an ester compound is used as an additive in a reaction of cyanuric chloride with 2-methylresorcinol.

METHOD FOR PRODUCING ISOCYANURIC ACID DERIVATIVE HAVING ONE HYDROCARBON GROUP
20190161455 · 2019-05-30 · ·

A method for producing an isocyanuric acid derivative having one hydrocarbon group. The method having a hydrocarbon group including a first step of obtaining a compound of the following formula (1) from the compound of formula (0), a second step of obtaining a compound of the following formula (2) from the compound of formula (1), a third step of obtaining a compound of the following formula (3) from the compound of formula (2), and a fourth step of obtaining a compound of the following formula (4) from the compound of formula (3):

##STR00001##

(wherein X.sub.1s are each a chlorine atom, a fluorine atom, or a bromine atom, Bn is a benzyl group in which at least one hydrogen atom in a benzene ring is optionally substituted with methyl group, and R is a C.sub.1-10 hydrocarbon group), wherein all the steps are carried out at a temperature of not exceeding 100 C.

METHOD FOR PRODUCING ISOCYANURIC ACID DERIVATIVE HAVING TWO HYDROCARBON GROUPS
20190071406 · 2019-03-07 · ·

A method for producing an isocyanuric acid derivative having two hydrocarbon groups including: a first step of obtaining a compound of Formula (1); a second step of obtaining a compound of Formula (2) from the compound of Formula (1); a third step of obtaining a compound of Formula (3) from the compound of Formula (2); and a fourth step of obtaining a compound of Formula (4) from the compound of Formula (3), wherein Bn is a benzyl group, and two Rs are each a C.sub.1-10 hydrocarbon group, wherein all the steps are carried out at a temperature not exceeding 100 C.

METHODS RESPECTIVELY FOR PRODUCING 2,4,6-TRIS (2-HYDROXY-3-METHYL-4-ALKOXYPHENYL)- 1,3,5- TRIAZINE COMPOUND AND 2,4,6-TRIS(2,4-DIHYDROXY-3-METHYLPHENYL)-1,3,5-TRIAZINE
20180305325 · 2018-10-25 · ·

The present invention provides methods respectively for producing a 2,4,6-tris(2-hydroxy-3-methyl-4-alkoxyphenyl)-1,3,5-triazine compound and 2,4,6-tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine, both of which are improved in yield and quality. The methods according to the present invention are characterized in that a reaction of 2,4,6-tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine with an alkylating agent is carried out using a base in the presence of an alcohol or water, and are also characterized in that an ester compound is used as an additive in a reaction of cyanuric chloride with 2-methylresorcinol.

PREPARATION AND USE OF SILVER SULFADIAZINE-IMMOBILIZED FILLERS
20180125763 · 2018-05-10 ·

Silver sulfadiazine-immobilized inorganic fillers are described, and their synthesis is presented. The fillers are believed to have utility in dental composites and dental adhesives to achieve potent, long-term, and none-leaching antimicrobial effects.

PREPARATION AND USE OF SILVER SULFADIAZINE-IMMOBILIZED FILLERS
20180125763 · 2018-05-10 ·

Silver sulfadiazine-immobilized inorganic fillers are described, and their synthesis is presented. The fillers are believed to have utility in dental composites and dental adhesives to achieve potent, long-term, and none-leaching antimicrobial effects.

Processes and Intermediates for Preparing a Macrocyclic Protease Inhibitor of HCV

A process for preparing [(1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, by the resolution of racemic 4-oxo-1,2-cyclopentanedicarboxylic acid (V), said process comprising: (a) reacting 4-oxo-1,2-cyclopentanedicarboxylic acid (V) with brucine or (1R,2S)-()-ephedrine, thus preparing the bis-brucine or bis-(1R,2S)-()-ephedrine salt of (V), and (b) precipitating selectively the bis-brucine or bis-(1R,2S)-()-ephedrine salt of (1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, while the bis-brucine or bis-(1R,2S)-()-ephedrine salt of [(1S,2S)-4-oxo-1,2-cyclopentanedicarboxylic acid stays in solution; (c) liberating the acid II by removal of brucine or (1R,2S)-()-ephedrine from the precipitated salt obtained in step (b).

Triazine-based polymer
12243664 · 2025-03-04 · ·

Compositions and methods related to conducting polymeric compositions that can be used in devices for storage of electrical energy are generally provided. The composition may include redox active polymers that include an electrophilic nitrogen containing heterocycle and an electron rich aromatic compound. The electroactive polymers may be formed by polymerizing an electrophilic nitrogen containing heterocycle-based unit with an electron rich aromatic compound in the presence of heat and an acid-based catalyst. The resulting electroactive polymers may be suitable as polymer films for use as electrodes in energy storage devices. The polymer films disposed as electrodes can improve the energy density of such devices.

Triazine-based polymer
12243664 · 2025-03-04 · ·

Compositions and methods related to conducting polymeric compositions that can be used in devices for storage of electrical energy are generally provided. The composition may include redox active polymers that include an electrophilic nitrogen containing heterocycle and an electron rich aromatic compound. The electroactive polymers may be formed by polymerizing an electrophilic nitrogen containing heterocycle-based unit with an electron rich aromatic compound in the presence of heat and an acid-based catalyst. The resulting electroactive polymers may be suitable as polymer films for use as electrodes in energy storage devices. The polymer films disposed as electrodes can improve the energy density of such devices.

Processes and intermediates for preparing a macrocyclic protease inhibitor of HCV

A process for preparing [(1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, by the resolution of racemic 4-oxo-1,2-cyclopentanedicarboxylic acid (V), said process comprising: (a) reacting 4-oxo-1,2-cyclopentanedicarboxylic acid (V) with brucine or (1R,2S)-()-ephedrine, thus preparing the bis-brucine or bis-(1R,2S)-()-ephedrine salt of (V), and (b) precipitating selectively the bis-brucine or bis-(1R,2S)-()-ephedrine salt of (1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, while the bis-brucine or bis-(1R,2S)-()-ephedrine salt of [(1S,2S)-4-oxo-1,2-cyclopentanedicarboxylic acid stays in solution; (c) liberating the acid II by removal of brucine or (1R,2S)-()-ephedrine from the precipitated salt obtained in step (b).