5,6-difluoro-2-hydroxyimino-3H-inden-1-one → 2-Amino-5,6-difluoroindan-1-one

Participants

Reaction Steps

5,6-Difluoroindan-1,2-dione 2-oxime (Preparation 77) (2.70 g, 13.7 mmol) was dissolved in acetic acid (70 mL) and 10% Palladium on carbon (717 mg) added. The reaction mixture was hydrogenated at 50 psi for 72 h, filtered through a pad of celite and washed with chloroform (100 mL). The resulting precipitate was collected by filtration and air dried to give the title compound: δH(DMSO-d6) 3.11 (1H, dd), 3.56 (1H, dd), 4.34 (1H, dd), 7.74-7.94 (2H, m), 8.75 (2H, bs).

Provenance & Evidence