[I:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[OH:8].[CH3:9][O:10][CH2:11][CH2:12][CH2:13]O.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>C1COCC1>[I:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[O:8][CH2:13][CH2:12][CH2:11][O:10][CH3:9]To a stirred solution of 2-iodophenol (3.00 g, 13.6 mmol), 3-methoxy-1-propanol (1.57 ml, 16.4 mmol) and triphenylphosphine (4.29 g, 16.4 mmol) in THF (15 ml) was added dropwise diisopropyl azodicarboxylate (3.22 ml, 16.4 mmol). The reaction mixture was stirred at room temperature overnight. The mixture was quenched with water and extracted with EA. The organic layer was separated, dried over sodium sulfate, filtered, and evaporated under reduced pressure: The residue was purified by silica gel chromatography (EA/HEP 1:5). 4.00 g of the title compound were obtained.
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