Diethyl Ether → HCID 66921219, compound

Participants

Reaction Conditions

Reaction Steps

The keto compound 1e (1.10 g, 3.83 mmol) was dissolved in dry THF (30 mL) and the solution was cooled to 0° C. A solution of methyl triphenylphosphonium bromide (4.0 g, 11.2 mmol) and KOtBu (1.17 g, 10.5 mmol) in dry THF (40 mL) was added in 3 aliquots with 2 hours interval. After 6 hrs the solution was poured into a separatory funnel with diethyl ether (70 mL) and extracted with 10% citric acid (aq)(2*40 mL). The organic phase was washed with saturated aqueous NaHCO3 (40 mL), dried with Na2SO4, filtered and the solvent was evaporated in vacuo. The crude product was purified by flash chromatography (heptane: ethyl acetate 4:1) which gave the title compound (524 mg, 48%)

Provenance & Evidence