Hexane → HCID 18509434, compound

Participants

Reaction Steps

Methyl triphenylphosphonium bromide (1.97 g; 5.51 mmol) was suspended in tetrahydrofuran (15 ml). While the suspension was stirred under nitrogen atmosphere at room temperature, n-butyl lithium in n-hexane (1.68 M: 3.9 ml; 6.60 mmol) was added dropwise. After the reaction mixture turned deep red, the mixture was cooled in an ice bath, and Compound 1 (1.42 g; 4.59 mmol) in tetrohydrofuran (15 ml) was added dropwise thereto. After completion of the addition, the mixture was removed from the ice bath, and stirred for 30 minutes at room temperature. Reaction was stopped by pouring the mixture into ice/water, followed by extraction with diethyl ether (100 ml). The organic layer was washed with saturated aqueous sodium bicarbonate solution and then with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=10:1), to thereby yield 0.81 g of the target compound as yellow oily matter (yield: 57.4%).

Provenance & Evidence