Patent classifications
C07C229/52
METHOD FOR PRODUCING BIPHENYLAMINES FROM AZOBENZENES BY RUTHENIUM CATALYSIS
The present invention relates to a novel method for preparing substituted biphenylamines
METHOD FOR PRODUCING BIPHENYLAMINES FROM AZOBENZENES BY RUTHENIUM CATALYSIS
The present invention relates to a novel method for preparing substituted biphenylamines
COMPOUND AND LIGHT EMITTING ELEMENT USING SAME
A compound with which the luminance life of a light emitting device is excellent is represented by formula (1):
##STR00001##
n represents an integer of 2 or more and 20 or less, R.sup.1 and R.sup.2 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group or a halogen atom. Ar.sup.1 represents a mono-cyclic or condensed-cyclic arylene group, a mono-cyclic or condensed-cyclic divalent heterocyclic group or a group represented by —N(R.sup.X1)—, and R.sup.X1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group. At least two of Ar.sup.1 represent prescribed groups.
PROCESS FOR ISOLATING 2-(4'-DIETHYLAMINO-2'-HYDROXYBENZOYL)BENZOIC ACID HEXYL ESTER
The present invention relates to a process for isolating 2-(4′-diethylamino-2′-hydroxybenzoyl)benzoic acid hexyl ester with a high purity and low phthalic acid dialkyl ester content.
PROCESS FOR ISOLATING 2-(4'-DIETHYLAMINO-2'-HYDROXYBENZOYL)BENZOIC ACID HEXYL ESTER
The present invention relates to a process for isolating 2-(4′-diethylamino-2′-hydroxybenzoyl)benzoic acid hexyl ester with a high purity and low phthalic acid dialkyl ester content.
PROCESS FOR ISOLATING 2-(4'-DIETHYLAMINO-2'-HYDROXYBENZOYL)BENZOIC ACID HEXYL ESTER
The present invention relates to a process for isolating 2-(4′-diethylamino-2′-hydroxybenzoyl)benzoic acid hexyl ester with a high purity and low phthalic acid dialkyl ester content.
COMPOUNDS AND METHODS
Compounds of Formula (A) and methods for use as agricultural chemicals, including herbicides.
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COMPOUNDS AND METHODS
Compounds of Formula (A) and methods for use as agricultural chemicals, including herbicides.
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PROCESS FOR THE PREPARATION OF KEY INTERMEDIATES FOR THE SYNTHESIS OF ELTROMBOPAG OR SALT THEREOF
Object of the present invention is an improved process for the preparation of key intermediates for the synthesis of Eltrombopag, passing through/using intermediate 5′-Chloro-2′-hydroxy[1,1′-biphenyl]-3-carboxylic acid alkaline metal salt of formula: wherein A is an alkaline metal.
##STR00001##
PROCESS FOR THE PREPARATION OF KEY INTERMEDIATES FOR THE SYNTHESIS OF ELTROMBOPAG OR SALT THEREOF
Object of the present invention is an improved process for the preparation of key intermediates for the synthesis of Eltrombopag, passing through/using intermediate 5′-Chloro-2′-hydroxy[1,1′-biphenyl]-3-carboxylic acid alkaline metal salt of formula: wherein A is an alkaline metal.
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