[CH:1]1([C:7]2[CH:12]=[CH:11][C:10]([OH:13])=[CH:9][CH:8]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.Br[CH2:15][CH2:16][O:17][CH2:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O.O.C(OCC)(=O)C>[CH2:18]([O:17][CH2:16][CH2:15][O:13][C:10]1[CH:9]=[CH:8][C:7]([CH:1]2[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]2)=[CH:12][CH:11]=1)[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1
A suspension of 4-cyclohexylphenol (2.5 g), benzyl 2-bromoethyl ether (3.0 g) and potassium carbonate (2.4 g) in N,N-dimethylformamide (50 mL) was stirred at 60° C. for 23 hours. The reaction solution was diluted with water and ethyl acetate. The organic layer was washed with saturated aqueous potassium carbonate solution and saturated ammonium chloride (×2), dried over anhydrous sodium sulfate and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a colorless oil (3.9 g).
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