Water → HCID 19360603, compound

Participants

Reaction Conditions

Reaction Steps

9.2 mmol of sodium hydride are suspended in 40 ml of dry dimethylformamide and 2.3 ml (23 mmol) of 1,3-propanedithiol are added dropwise. Then 2.0 g (4.6 mmol) of 2-benzyl-1-(4'-bromo-biphenyl-4-yl)-2-dimethylamino-butan-1-one (prepared by the method described in U.S. Pat. No. 5,534,629) in 60 ml of dimethylformamide are added dropwise. After stirring the solution at 100° C. for 2 h, the solution is poured into water. The crude product is extracted with methylene chloride, washed with water, dried over MgSO4, and concentrated. The residue is purified by column chromatography on silica gel with ethyl acetate-hexane (10:90) as an eluent. The structure of the product is confirmed by the 1H-NMR spectrum (CDCl3): δ [ppm] 0.72 (t, 3H), 1.37 (t, 1H), 1.84-2.01 (m, 3H), 2.09 (dq, 1H), 2.40 (s, 6H), 2.68 (dt, 2H), 3.10 (t, 2H), 3.23 (s, 2H), 7.15-7.29 (m, 5H), 7.41 (d, 2H), 7.55-7.62 (m, 4H), 8.41 (d, 2H).

Provenance & Evidence