401-73-0

Basic information

• Product Name: 3-(TRIFLUOROMETHYL)-2-PYRAZOLIN-5-ONE
• Synonyms: 3-trifluoromethyl-1H-5;5-(trifluoroMethyl)-3H-pyrazol-3-one;2,4-Dihydro-5-(trifluoromethyl)-3H-pyrazol-3-one;3-(TrifluoroMethyl)-1H-pyrazol-5(4H)-one;BUTTPARK 44\01-19;4,5-DIHYDRO-3-(TRIFLUOROMETHYL)PYRAZOL-5-ONE;3-(TRIFLUOROMETHYL)-4,5-DIHYDRO-1H-PYRAZOL-5-ONE;3-(TRIFLUOROMETHYL)-2-PYRAZOLIN-5-ONE
• CAS NO: 401-73-0
• Molecular Formula: C₄H₃F₃N₂O
• Molecular Weight: 152.07
• Mol File: 401-73-0.mol

Chemical Properties

• Melting Point: 214-217°C
• Appearance: /
• Density: 1.70
• CAS DataBase Reference: 3-(TRIFLUOROMETHYL)-2-PYRAZOLIN-5-ONE(CAS DataBase Reference)
• NIST Chemistry Reference: 3-(TRIFLUOROMETHYL)-2-PYRAZOLIN-5-ONE(401-73-0)
• EPA Substance Registry System: 3-(TRIFLUOROMETHYL)-2-PYRAZOLIN-5-ONE(401-73-0)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• HazardClass: IRRITANT
• Hazardous Substances Data: 401-73-0(Hazardous Substances Data)

Usage

Uses

Used in Pharmaceutical Industry:
3-(Trifluoromethyl)-2-pyrazolin-5-one is used as a synthetic intermediate for the production of various pharmaceuticals. Its unique reactivity allows for the creation of a wide range of bioactive molecules, which can be further utilized in the development of new drugs and therapeutic agents.
Used in Organic Chemistry:
3-(Trifluoromethyl)-2-pyrazolin-5-one is used as a key building block in the synthesis of organic materials. Its presence in the molecular structure can impart specific properties to the final product, making it a valuable component in the preparation of specialty chemicals and advanced materials.
Used in Research and Development:
3-(Trifluoromethyl)-2-pyrazolin-5-one is used as a research compound in academic and industrial laboratories. Its unique chemical properties make it an interesting subject for studies aimed at understanding its reactivity, potential applications, and the development of new synthetic methods. This can lead to the discovery of novel compounds and materials with improved properties and applications.

Upstream product

• 140-87-4 Cyanoacetohydrazide 
• 372-31-6 ethyl 4,4,4-trifluoroacetoacetate 

Downstream Products

• 496018-59-8 6-amino-4-[2-(2-chloro-benzyloxy)-phenyl]-3-trifluoromethyl-2,4-dihydro-pyrano[2,3-c]pyrazole-5-carbonitrile 
• 30613-53-7 (Z)-3-(trifluoromethyl)-4-(2-(3-(trifluoromethyl)phenyl)hydrazono)-1H-pyrazol-5(4H)-one 
• 30614-13-2 4-(4-chlorophenylhydrazono)-5-trifluoromethyl-2,4-dihydropyrazol-3-one 
• 30659-95-1 4-(4-methoxylphenylhydrazono)-5-trifluoromethyl-2,4-dihydropyrazol-3-one 
• 387829-30-3 (Z)-4-(2-(p-tolyl)hydrazono)-5-(trifluoromethyl)-2,4-dihydro-3H-pyrazol-3-one 
• 387829-08-5 4-phenylhydrazono-5-trifluoromethyl-2,4-dihydropyrazol-3-one 

Relevant articles and documents

A new method for making pyrazole or pyrimidinone

The invention relates to the use of an amine compound in a method for producing a fluorinated or non-fluorinated 5- or 6-membered heterocyclic compound (preferably pyrazole or pyrimidinone) containingtwo nitrogen atoms in a ring system. The invention also relates to a method for producing a pyrazole or pyrimidinone, which may be fluorinated or may not be fluorinated (non-fluorinated). Each of thefluorinated pyrazole or fluorinated pyrimidinone is a very important structural unit for pharmaceutical and agricultural applications. For example, fungicides are strongly dependent on bifenapram, fluoxastrobin, flubenazolid, fluoxastrobin, pyraclostrobin, and pyracloprid, each with this fluorinated pyrazole as a key structural unit, and benflufenazole respectively, or diflufenacil and chlorfensulfazone (dimethachlor).

A simple and catalyst free one pot access to the pyrazolone fused 2,8-dioxabicyclo[3.3.1]nonanes

Synthesis of a series of novel aryl and heteroaryl fused 2,8-dioxabicyclo[3.3.1]nonanes (3) was accomplished by one pot, catalyst free reaction of 2-hydroxy chalcone (1) with 3-trifluoromethyl substituted pyrazolone (2) in xylene at reflux temperature. Th

Synthesis and antitumor activity of 5-trifluoromethyl-2,4-dihydropyrazol-3- one nucleosides

2,4-Dihydropyrazole glucosides 3a-3c were prepared and tested for their antitumor activity. The structures of these compounds were established by 1H and 13C-NMR spectroscopy. Glucoside 3b shows an in vitro IC50 value of 16.4 μM against proliferation of the human promyelotic leukemia (HL60) cell line.

STUDIES IN THE FIELD OF NITROGEN HETEROCYCLIC COMPOUNDS. PART XVI. A NOVEL "DIMROTH TYPE" REARRANGEMENT OF SOME 1-AMINO-2-PYRIDONE DERIVATIVES

Condensation of β-ketoesters (1) with cynaoacetohydrazide (2) in alcoholic solutions of KOH leads to formation of potassium salts of the corresponding 1-amino-3-cyano-6-hydroxy-4-substituted 2-pyridones (3).It has been found that compounds 3i, j possessin