Sodium hydride → 3-Methyl-2-butenyl 2'-fluoro-2-(((3-methyl-2-butenyl)oxy)methyl)-5'-(methyloxy)-1,1'-biphenyl-4-carboxylate

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Reaction Steps

To a solution of 66.63A (0.322 mmol) in DMF (4 mL), was added NaH (0.0100 g, 0.419 mmol). The resulting mixture was stirred at room temperature for 10 minutes. 1-Bromo-3-methylbut-2-ene (0.240 g, 1.61 mmol) (commercially available from Aldrich) was added and the mixture was stirred at room temperature for 2 hours. After removing solvent, the residue was purified by flash chromatography (silica gel, 1:6 EtOAc/hexane) and gave 67.27A as a colorless oil, in 77% yield. MS ESI (pos.) m/e: 430 (M+18)+.

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