2-(4-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one

Base Information

• Chemical Name: 2-(4-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one
• CAS No.: 100553-83-1
• Molecular Formula: C10H9FN2O
• Molecular Weight: 192.193
• European Community (EC) Number: 843-337-6
• DSSTox Substance ID: DTXSID40351508
• Nikkaji Number: J3.276.428B
• Wikidata: Q72476226
• ChEMBL ID: CHEMBL3605474
• Mol file: 100553-83-1.mol

Synonyms:100553-83-1;2-(4-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one;2-(4-fluorophenyl)-5-methyl-4H-pyrazol-3-one;1-(4-Fluorophenyl)-3-methyl-2-pyrazolin-5-one;1-(4-fluorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one;1-(4-Fluorophenyl)-3-methyl-1H-pyrazol-5(4H)-one;2-(4-Chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazole-3-one;Maybridge1_006780;SCHEMBL3529446;CHEMBL3605474;HMS560M04;DTXSID40351508;CHEBI:194807;VJVFAPBCFDWAEX-UHFFFAOYSA-N;MFCD01566940;STK400413;AKOS000116987;AC-8466;FT-0758315;EN300-07509;2-(4-luorophenyl)-5-methyl-4H-pyrazol-3-one;N17094;J-000163;Z50146693;2-(4-fluoro-phenyl)-5-methyl-2,4-dihydro-pyrazol-3-one

Chemical Property of 2-(4-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one

Chemical Property:

• Vapor Pressure: 4.15E-05mmHg at 25°C
• Melting Point: 148-149 °C
• Refractive Index: 1.59
• Boiling Point: 351.3 °C at 760 mmHg
• Flash Point: 166.3 °C
• PSA: 32.67000
• Density: 1.26 g/cm³
• LogP: 1.43890
• XLogP3: 1.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 1
• Exact Mass: 192.06989108
• Heavy Atom Count: 14
• Complexity: 269

Purity/Quality:

97% ^*data from raw suppliers

1-(4-Fluorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=NN(C(=O)C1)C2=CC=C(C=C2)F

Technology Process of 2-(4-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one

There total 7 articles about 2-(4-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 91.0%

C10H11FN2O → 2-(4-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one (100553-83-1)

Guidance literature:

With sodium anthraquinone-2-sulfonate; palladium diacetate; potassium carbonate; In chlorobenzene; at 110 ℃; for 6h;

DOI:10.1016/j.tetlet.2019.03.063

Reference yield: 88.7%

4-methyleneoxetan-2-one (674-82-8,2130-41-8) + 4-fluorophenylhydrazine (371-14-2) → 2-(4-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one (100553-83-1)

Guidance literature:

4-methyleneoxetan-2-one; With ammonium hydroxide; at 50 ℃; for 0.5h;

4-fluorophenylhydrazine; at 100 ℃; for 2.5h;

With hydrogenchloride; In water; for 2h; pH=1;

Reference yield: 75.0%

→ 2-(4-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one (100553-83-1)

Guidance literature:

upstream raw materials:

4-fluorophenyhydrazine hydrochloride

ethyl acetoacetate

acetoacetic acid methyl ester

4-fluorophenylhydrazine

Downstream raw materials:

(2-chlorophenyl)[1-(4-fluorophenyl)-5-hydroxy-3-methyl-1H-pyrazol-4-yl]methanone

C₁₁H₈ClFN₂O