Tetrahydrofuran → 1-[2-(2,6-Diethyl-4-methylphenyl)-2-oxoacetyl]-2-[1-(4-fluorophenyl)-2-methylsulfonylethylidene]-1-methylhydrazine

HRID 335437Notes

Reaction equation

HRID 335437 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=[N:14][NH:15][CH3:16])[CH2:9][S:10]([CH3:13])(=[O:12])=[O:11])=[CH:4][CH:3]=1.O1CCCC1.C(N(CC)CC)C.[CH2:29]([C:31]1[CH:36]=[C:35]([CH3:37])[CH:34]=[C:33]([CH2:38][CH3:39])[C:32]=1[C:40](=[O:44])[C:41](Cl)=[O:42])[CH3:30]>O>[CH2:29]([C:31]1[CH:36]=[C:35]([CH3:37])[CH:34]=[C:33]([CH2:38][CH3:39])[C:32]=1[C:40](=[O:44])[C:41]([N:15]([CH3:16])[N:14]=[C:8]([C:5]1[CH:4]=[CH:3][C:2]([F:1])=[CH:7][CH:6]=1)[CH2:9][S:10]([CH3:13])(=[O:12])=[O:11])=[O:42])[CH3:30]

Participants

6

Reactant 4

HCID 8028TetrahydrofuranHCID 8471TriethylamineHCID 569427122-(2,6-Diethyl-4-methylphenyl)-2-oxoacetyl chlorideHCID 86689353HCID 86689353, compound

Product 1

HCID 866893541-[2-(2,6-Diethyl-4-methylphenyl)-2-oxoacetyl]-2-[1-(4-fluorophenyl)-2-methylsulfonylethylidene]-1-methylhydrazineYield 60.8%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a 30 ml volume two-necked flask, 1-[1-(4-fluorophenyl)-2-methylsulfonylethylidene]-2-methylhydrazine (5-2-4) (0.90 g) and anhydrous tetrahydrofuran (5 ml) were added under a nitrogen atmosphere, and added triethylamine (0.37 g) under cooling. To the mixture, 2-(2,6-diethyl-4-methylphenyl)-2-oxoacetyl chloride (6-a) (0.88 g) was added dropwise below 0° C., and stirred under ice-cooling for 2 hours. The reaction mixture was added to water, and extracted with tert-butyl methyl ether. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (tert-butyl methyl ether) to give 1.0 g of 1-[2-(2,6-diethyl-4-methylphenyl)-2-oxoacetyl]-2-[1-(4-fluorophenyl)-2-methylsulfonylethylidene]-1-methylhydrazine ((4-64)-(1)-39).

Workup

  1. temperatureunder cooling
  2. temperaturecooling for 2 hours
  3. extractionextracted with tert-butyl methyl ether
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by silica gel column chromatography (tert-butyl methyl ether)

Sources & evidence

ORD record
ord-e665272c55cc46deb18993aed587ce96
Source dataset
uspto-grants-2014_11
Patent number
US08884010B2

Reaction notes

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