Water → 3-[Chloro(cyclohexyl)methyl]-2-ethyl-5-[4-(trifluoromethyl)phenyl]furan

HRID 1876944Notes

Reaction equation

[CH:1]1([CH:7]([C:9]2[CH:13]=[C:12]([C:14]3[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:16][CH:15]=3)[O:11][C:10]=2[CH2:24][CH3:25])O)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.S(Cl)([Cl:28])=O.C(=O)([O-])O.[Na+].O>C1(C)C=CC=CC=1>[Cl:28][CH:7]([CH:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1)[C:9]1[CH:13]=[C:12]([C:14]2[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:16][CH:15]=2)[O:11][C:10]=1[CH2:24][CH3:25]

Participants

Conditions

Temperature: 100 °C

Procedure

To a solution of cyclohexyl {2-ethyl-5-[4-(trifluoromethyl)phenyl]-3-furyl}methanol (705 mg) in toluene (10 mL) was added thionyl chloride (290 μL), and the mixture was stirred at 100° C. for 1 hr. The reaction mixture was cooled, neutralized with saturated aqueous sodium hydrogen carbonate, and poured into water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was crystallized from ethyl acetate/hexane to give the title compound (742 mg, 100%) as a yellow solid.

Workup

temperatureThe reaction mixture was cooled
extractionthe mixture was extracted with ethyl acetate
washThe organic layer was washed with saturated brine
dry with materialdried over magnesium sulfate
customThe solvent was evaporated under reduced pressure
customthe residue was crystallized from ethyl acetate/hexane

Sources & evidence

ORD record: ord-7f58c07f83604d9b97a6f9506b74626a
Source dataset: uspto-grants-2012_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08309580B2

Reaction notes

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