[O:1]1[CH:5]=[CH:4][CH:3]=[CH:2]1.C([Li])CCC.Br[CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH3:23].[Cl-].[NH4+]>CCCCCC.CCOCC>[CH2:23]([C:2]1[O:1][CH:5]=[CH:4][CH:3]=1)[CH2:22][CH2:21][CH2:20][CH2:19][CH2:18][CH2:17][CH2:16][CH2:15][CH2:14][CH2:13][CH3:12]
A mixture of 68.1 g (1.0 mole) of furan and 500 ml of anhydrous ether is stirred at -20° C. after which 1.1 moles (458 ml of a 2.4 molar hexane solution) of butyllithium is added slowly with stirring. The reaction mixture is stirred for 1 hour, then 284 g (1.2 moles) of 1-bromododecane is added. The reaction mixture is stirred at room temperature for 4 hours after which it is poured into a saturated ammonium chloride solution. The organic layer is separated and washed with water and brine, dried over sodium sulfate and distilled under reduced pressure to give 2-dodecylfuran.
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