Hydroxylamine HCl → 1,5,6,7-Tetrahydro-indol-4-one oxime

Participants

Reaction Steps

To a stirred solution of 1,5,6,7-tetrahydro-indol-4-one (5.4 g) in pyridine (40 mL) was added hydroxyammonium chloride (2 eq.) at rt. After 2 hours, the solvent was removed and the residue was diluted with water and extracted with ethyl acetate. The combined extracts were washed with brine, dried and concentrated to give 5.5 g of 1,5,6,7-tetrahydro-indol-4-one oxime as a pale yellow solid.

Provenance & Evidence