113502-46-8

Basic information

• Product Name: Ethyl 3-methyl-1-phenyl-1H-pyrazole-4-carboxylate
• Synonyms: Ethyl 3-methyl-1-phenyl-1H-pyrazole-4-carboxylate
• CAS NO: 113502-46-8
• Molecular Formula: C₁₃H₁₄N₂O₂
• Molecular Weight: 230.26246
• Mol File: 113502-46-8.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Ethyl 3-methyl-1-phenyl-1H-pyrazole-4-carboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: Ethyl 3-methyl-1-phenyl-1H-pyrazole-4-carboxylate(113502-46-8)
• EPA Substance Registry System: Ethyl 3-methyl-1-phenyl-1H-pyrazole-4-carboxylate(113502-46-8)

Safety Data

• HazardClass: IRRITANT
• Hazardous Substances Data: 113502-46-8(Hazardous Substances Data)

Upstream product

• 6214-64-8 ethyl 4-methyl-2-oxo-1H-pyrimidine-5-carboxylate 
• 59-88-1 phenylhydrazine hydrochloride 
• 64-17-5 ethanol 
• 121902-76-9 allophanoyl-4 methyl-3 phenyl-1 pyrazole 
• 110960-73-1 ethyl 4-methylpyrimidine-5-carboxylate 
• 100-63-0 phenylhydrazine 
• 3788-94-1 2-ethoxymethylene-3-oxobutanoic acid ethyl ester 
• 6214-65-9 5-acetyluracil 
• 121902-77-0 phenylhydrazone de l'acetyl-5 uracile 
• 6078-46-2 ethyl 3-(2-phenylhydrazono)butanoate 
• 68-12-2 N,N-dimethyl-formamide 
• 2290-03-1 methyl N'-phenylhydrazinoformate 

Downstream Products

• 77169-11-0 3-Methyl-1-phenyl-1H-pyrazole-4-carboxylic acid 

Relevant articles and documents

PROCESS FOR THE REGIOSELECTIVE SYNTHESIS OF PYRAZOLES

A process is described for the synthesis of pyrazoles having general formula (I) which comprises the steps of mixing a compound having general formula (II) and a 1,2-disubstituted hydrazine having general formula (III) to form a reaction intermediate having general formula (IV) and the reaction mixture obtained in step i), in an acid environment, cyclizes to form a pyrazole having general formula (I), according to reaction scheme 1 Scheme 1.

CONVERSION DE L'ACETYL-5 URACILE EN DERIVES PYRAZOLIQUES PAR L'HYDRAZINE ET LES HYDRAZINES MONOSUBSTITUEES

5-Acetyl uracile 1 is easily transformed by hydrazine and methylhydrazine into 4-allophanoyl-3-methyl pyrazole 2 (R=H) and 4-allophanoyl-1,3-dimethyl pyrazole 2 (R=CH3).The pyrazoles 2, in boiling butanol and in the presence of hydrochloric acid lead resp