Potassium Carbonate → [5-(3,5-dichloro-phenylsulfanyl)-3-methyl-1-phenyl-1H-pyrazol-4-yl]-phenyl-methanone

HRID 47603

Reaktionsgleichung

Cl[C:2]1[N:6]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[N:5]=[C:4]([CH3:13])[C:3]=1[C:14]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)=[O:15].[Cl:22][C:23]1[CH:24]=[C:25]([SH:30])[CH:26]=[C:27]([Cl:29])[CH:28]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[Cl:22][C:23]1[CH:24]=[C:25]([S:30][C:2]2[N:6]([C:7]3[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=3)[N:5]=[C:4]([CH3:13])[C:3]=2[C:14]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[O:15])[CH:26]=[C:27]([Cl:29])[CH:28]=1

Komponenten

Reaktionsbedingungen

Temperatur: 60 °C

Versuchsvorschrift

A solution containing 2.0 g of (5-chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-phenyl-methanone, 2.0 g of 3,5-dichlorothiophenol and 1.7 g of potassium carbonate in 50 ml of N,N-dimethylformamide was stirred at 60° C. for 19 h. The mixture was partitioned between 100 ml of water and 100 ml of dichloromethane. The organic layer was dried over magnesium sulphate, filtered and evaporated. The residue was purified by flash chromatography on silica gel using methanol/dichloromethane for the elution to give 2.2 g of [5-(3,5-dichloro-phenylsulfanyl)-3-methyl-1-phenyl-1H-pyrazol-4-yl]-phenyl-methanone as a yellow oil. Mass spectrum (ES) m/z 439 [M+H]+, 480 [M+H+CH3CN]+.

Aufarbeitung

customThe mixture was partitioned between 100 ml of water and 100 ml of dichloromethane
dry with materialThe organic layer was dried over magnesium sulphate
filtrationfiltered
customevaporated
customThe residue was purified by flash chromatography on silica gel
washfor the elution

Quellen und Nachweise

ORD-Eintrag: ord-6f91d18bce754f9c82ef74e264f8528d
Quelldatensatz: uspto-grants-2004_03
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US06699887B2

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