Sodium borohydride → 1H-Indene-1-methanol, 1-amino-2,3-dihydro-

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Reaction Steps

The product of Example 434A (0.292 g, 1.423 mmol) and sodium borohydride (0.275 g, 7.113 mmol) were reacted in 1:3 v/v water/ethanol (7 mL), at reflux for 4 hours. The reaction was concentrated by rotary evaporation the partitioned between water (5 mL), ethyl ether (20 mL), 1N aqueous sodium hydroxide (0.712 mL). Solid sodium chloride was added to saturate the aqueous phase and separate the phases. The aqueous phase was extracted with ethyl ether (2×25 mL). The combined ethereal extracts were washed with brine (25 mL), dried over potassium carbonate, filtered, and concentrated by rotary evaporation to afford the title compound (0.197 g, 1.209 mmol, 85%). 1H NMR (300 MHz, DMSO-D6) δ ppm 1.64-1.80 (m, 1 H) 1.85 (s, 2 H) 2.16-2.31 (m, 1 H) 2.63-2.91 (m, 2 H) 3.30 (d, J=5.52 Hz, 2 H) 4.74 (t, J=5.52 Hz, 1 H) 6.80-7.63 (m, 4 H). MS (DCI) m/z 164 (M+H)+, 181 (M+NH4)+.

Provenance & Evidence