1,3-Difluoroacetone → HCID 56591410, compound

Participants

Reaction Steps

A solution of EXAMPLE 161B (0.118 g), sodium triacetoxyborohydride (0.035 g) and 1,3-difluoropropan-2-one (0.012 g) were stirred together in dichloromethane (1 mL) overnight. The reaction was quenched with saturated aqueous NaHCO3 solution (10 mL) and extracted into dichloromethane (30 mL). The organic layer was dried and concentrated. Silica gel chromatography (Reveleris 12 g) eluting with a gradient of 0.5% to 3.5% methanol/dichloromethane over 30 minutes (Flow=36 ml/min) gave the title compound. 1H NMR (300 MHz, dimethylsulfoxide-d6) δ 11.67 (s, 1H), 11.47-11.21 (m, 1H), 8.85 (s, 1H), 8.55 (d, 1H), 8.03 (d, 1H), 7.80 (dd, 1H), 7.54-7.45 (m, 3H), 7.33 (s, 2H), 7.04 (d, 3H), 6.67 (d, 1H), 6.38 (dd, 1H), 6.20 (d, 1H), 4.43 (dt, 4H), 3.56 (t, 2H), 3.46 (s, 2H), 3.12 (m, 6H), 2.74 (m, 3H), 2.17 (m, 7H), 1.95 (s, 2H), 1.39 (d, 2H), 0.92 (s, 6H).

Provenance & Evidence