Sodium borohydride → HCID 19961064, compound

Participants

Reaction Steps

Sodium borohydride (6.8 g) was added to a suspension of 6.8 g (23.3 mmol) of 1-cyano-3,4-dihydro-5,6-dimethoxy-3-phenyl naphthalene, from Step 1, in 100 mL of absolute ethanol and the reaction mixture was heated at reflux temperature for 1.5 h. The solvent was evaporated under reduced pressure and the residue was dissolved in ethyl acetate. The ethyl acetate solution was washed with 1N aqueous hydrochloric acid solution, aqueous sodium bicarbonate solution and brine, dried over anhydrous magnesium sulfate, filtered and concentrated to an oil. The oil was "triturated" with heptane to give 5.63 g (82%) yield of the title compound as a white crystalline solid, m.p. 118°-121° C.

Provenance & Evidence