Sodium hydride → HCID 67320104, compound

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Reaction Steps

Compound 10 (1.2 g, 5 mmol) was mixed with DMF (30 ml). After stirring the mixture at room temperature for 15 minutes, NaH (0.6 g, 15 mmol) was added and stirred until the solution became clear. After that, 1-bromine-3-phenylpropane (2 ml) was added. The mixture was refluxed for 4 h. THF was evaporated in reduced pressure. The resulting solution was added 200 ml 2N HCl solution. The mixture was extracted with ethyl ether. The aqueous phase was neutralized by saturated NaHCO3 solution and then extracted with ethyl acetate. The organic phases were combined, washed with water and brine, dried over sodium sulfate, filtered, concentrated in vacuum and purified with silica gel column chromatography with ethyl acetate as the eluent. Upon recrystallization, white needle crystals (1.0 g, 56%) were obtained, mp 140-142° C.

Provenance & Evidence