52943-85-8

Usage

Compound classification

Derivative of pyrazole, amine, and nitroso compound

Structural features

Phenyl group attached to the nitrogen atom, methyl and nitroso groups attached to the pyrazole ring

Potential applications

Synthetic and research applications, development of pharmaceuticals and compounds with biological activity

Research status

Further research needed to fully understand its potential uses and properties

Upstream product

• 1131-18-6 1-Phenyl-3-methyl-5-aminopyrazole 
• 108-20-3 di-isopropyl ether 
• 110-46-3 isopentyl nitrite 
• 100-63-0 phenylhydrazine 
• 42412-18-0 3-phenylhydrazono-butyronitrile 

Downstream Products

• 3574-75-2 4-(thiazol-2-yl)azo-5-amino-3-methyl-1-phenyl-1H-pyrazole 
• 121898-91-7 4-(pyrid-2-yl)azo-5-amino-3-methyl-1-phenyl-1H-pyrazole 
• 19846-94-7 3,7-Dimethyl-1,5-diphenyl-1,5-dihydro-dipyrazolo[3,4-b;3',4'-e]pyrazine 
• 148368-70-1 N-(3-methyl-4-nitroso-1-phenylpyrazol-5-yl)phenylacetamide 
• 90094-66-9 1-Phenyl-3-methyl-1H-pyrazolo<3,4-b>pyrazine-5,6-dicarboxylic acid diethyl ester 
• 58663-02-8 5-phenyl-7-methylpyrazolo<4,3-c><1,2,5>oxadiazin-3(5H)-one 
• 52943-88-1 4,5-diamino-3-methyl-1-phenylpyrazole 
• 214914-34-8 1,6-diphenyl-3-methyl-1H-pyrazolo[3,4-b]pyrazine-5-carbonitrile 
• 106538-00-5 6-amino-3-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyrazine-5-carbonitrile 
• 184355-47-3 3,5,7-Trimethyl-1-phenyl-1H-pyrazolo[3,4-b][1,4]diazepin-6-one oxime 
• 148368-71-2 N-(4-amino-3-methyl-1-phenylpyrazol-5-yl)phenylacetamide 

Relevant academic research and scientific papers

Composition for dyeing keratin fibers which contain at least one diaminopyrazole, dyeing process, novel diaminopyrazoles and process for their preparation

The invention relates to novel compositions for the oxidation dyeing of keratin fibers, comprising at least one specific diaminopyrazole derivative, to the dyeing process using this composition, to novel diaminopyrazole derivatives and to a process for their preparation.

Composition for dyeing keratin fibers which contain at least one diaminopyrazole, dyeing process, novel diaminopyrazoles and process for their preparation

The invention relates to novel compositions for the oxidation dyeing of keratin fibers, comprising at least one specific diaminopyrazole derivative, to the dyeing process using this composition, to novel diaminopyrazole derivatives and to a process for their preparation.

A New Synthetic Approach to Pyrazolo[3,4-c]-1,2,5-oxadiazoles

4-Aryl-substituted-6-methyl-4H-pyrazolo[3,4-c]-1,2,5-oxadiazoles 15-21 were easily obtained through the oxidation reaction mediated by lead(IV) acetate of 5-methyl-4-nitroso-2-phenyl-2H-pyrazol-3-ylamines 8-14 in 88-97 percent yields.

Studies with Condensed Azines: New Routes to Pyrazolopyridines and Pyrrolopyridines

3-methyl-1-phenylpyrazol-5-amine (1) reacted with enaminones, benzylidenemalononitrile and ethoxymethylidenemalononitrile to yield pyrazolopyridines.Compound (1) also reacted with benzoyl isothiocyanate to yield a thiourea derivative (18) which could be converted into a pyrazolothiazole (19) on treatment with bromine.In situ generated ethyl 4-amino-2-methylpyrrole-3-carboxylate reacted with ethyl benzylidenecyanoacetate to yield pyrrolopyridines.