Hydroxyamine hydrochloride → HCID 131714981, compound

Participants

Reaction Steps

6,7,8,9-Tetrahydro-2-methoxy-10-methylpyrido[1,2-a]indol-9-one, (9.16 g, 0.04 mol, described in Example 15, Step 2), was dissolved in pyridine (180 mL). Hydroxylamine hydrochloride (5.56 g, 0.08 mol) was added and the resulting solution refluxed for 90 minutes. The reaction mixture was concentrated in vacuo to ~15 mL, water (200 mL) was added and the product was extracted with ether (2×50 mL). The combined organic extracts were washed with water (100 mL), 5% hydrochloric acid (50 mL), 10% aqueous sodium bicarbonate (100 mL), then dried over MgSO4, filtered, and evaporated to afford the desired oxime 9.2 g (94%) m.p. 174°-6° C.

Provenance & Evidence