4-benzoyl-2-(difluoromethyl)-3-methyl-1-phenyl-1,2-dihydropyrazol-5-one

Base Information

• Chemical Name: 4-benzoyl-2-(difluoromethyl)-3-methyl-1-phenyl-1,2-dihydropyrazol-5-one
• CAS No.: 1004112-64-4
• Molecular Formula: C₁₈H₁₄F₂N₂O₂
• Molecular Weight: 328.318

Synonyms:4-benzoyl-2-(difluoromethyl)-3-methyl-1-phenyl-1,2-dihydropyrazol-5-one

Chemical Property of 4-benzoyl-2-(difluoromethyl)-3-methyl-1-phenyl-1,2-dihydropyrazol-5-one

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Technology Process of 4-benzoyl-2-(difluoromethyl)-3-methyl-1-phenyl-1,2-dihydropyrazol-5-one

There total 3 articles about 4-benzoyl-2-(difluoromethyl)-3-methyl-1-phenyl-1,2-dihydropyrazol-5-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: 58.0%

(chlorodifluoromethylsulfonyl)benzene (930836-30-9) + 4-Benzoyl-5-methyl-2-phenyl-1,2-dihydro-pyrazol-3-one (64598-48-7) → 4-benzoyl-2-(difluoromethyl)-3-methyl-1-phenyl-1,2-dihydropyrazol-5-one (1004112-64-4)

Guidance literature:

With potassium hydroxide; In acetonitrile; at 50 ℃;

DOI:10.1039/b713156a

Reference yield: 34.0%

p-chlorophenyl chlorodifluoromethyl sulfone (403496-62-8) + 4-Benzoyl-5-methyl-2-phenyl-1,2-dihydro-pyrazol-3-one (64598-48-7) → 4-benzoyl-2-(difluoromethyl)-3-methyl-1-phenyl-1,2-dihydropyrazol-5-one (1004112-64-4)

Guidance literature:

With potassium hydroxide; In water; acetonitrile; at -78 - 80 ℃; for 4h;

DOI:10.1016/j.jfluchem.2011.05.009

Reference yield: 29.0%

4-Benzoyl-5-methyl-2-phenyl-1,2-dihydro-pyrazol-3-one (64598-48-7) + [bromo(difluoro)methyl]-trimethyl-silane (115262-01-6) → 4-benzoyl-2-(difluoromethyl)-3-methyl-1-phenyl-1,2-dihydropyrazol-5-one (1004112-64-4) + (5-(difluoromethoxy)-3-methyl-1-phenyl-1H-pyrazol-4-yl)(phenyl)methanone

Guidance literature:

With potassium hydroxide; In dichloromethane; water; at 0 ℃; for 0.5h;

DOI:10.1002/anie.201306703

upstream raw materials:

(chlorodifluoromethylsulfonyl)benzene

4-Benzoyl-5-methyl-2-phenyl-1,2-dihydro-pyrazol-3-one

p-chlorophenyl chlorodifluoromethyl sulfone

[bromo(difluoro)methyl]-trimethyl-silane

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