Ammonia → HCID 54689953, compound

Participants

Reaction Steps

The product from Example 6 (1.24 g; 4 mmol) in 20 mL of acetic acid was treated with aqueous 48% HBr (25 mL). The mixture was heated at reflux for about 5 to about 8 hours (TLC analysis). The mixture was concentrated in vacuo. The product was dissolved in ethyl acetate, washed with 10% bicarbonate, brine and concentrated in vacuo. The residue was treated with diethyl ether-hexanes (2:1) and the solid was filtered to provide an almost pure product (yield: 1.16 g; 98%). 1H NMR (300 MHz, DMSO-d6) δ 5.24 (2H), 7.21 (m, 2H), 7.30 (m, 5H), 7.55 (m, 2H), 7.85 (s, 1H), 11.31 (br s, 1H). MS (DCI/NH3) m/z 296 (M+H)+, 314 (M+NH4)+.

Provenance & Evidence