[O:1]([Si:9]([C:12]([CH3:15])([CH3:14])[CH3:13])([CH3:11])[CH3:10])S(C(F)(F)F)(=O)=O.[Br:16][C:17]1[CH:21]=[CH:20][O:19][C:18]=1[CH2:22]O.N1C=CC=CC=1>C(Cl)Cl>[Br:16][C:17]1[CH:21]=[CH:20][O:19][C:18]=1[CH2:22][O:1][Si:9]([C:12]([CH3:15])([CH3:14])[CH3:13])([CH3:11])[CH3:10]tert-Butyldimethylsilanyl triflate (17.13 g) was added slowly to a stirred, cooled solution of 3-bromo-2-hydroxymethylfuran (Intermediate 39, 10.1 g) in DCM (160 mL) and pyridine (9.57 g) while maintaining the temperature at 0° C. The mixture was allowed to warm to room temperature and stirred for 1 hour. The mixture was washed with aqueous citric acid solution, brine, dried (Na2SO4) and filtered. The filtrate was evaporated to dryness to give 3-bromo-2-(tert-butyldimethylsilanyloxymethyl)furan (17.1 g).
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