Iodine → 8-Fluoro-2,2,4,11-tetramethyl-1,2-dihydro-6-oxa-1-azachrysen-5-one

Participants

Reaction Conditions

Reaction Steps

In a pressure tube, 8-amino-3-fluoro-10-methylbenzo[c]chromen-6-one (Reference Compound No. 1-4-(6), 6.13 g, 25.2 mmol) was dissolved in acetone (175 mL) and iodine (2.56 g, 10.1 mmol) was added thereto, then the pressure tube was sealed, and then the reaction mixture was stirred at 110° C. for 4 days. After cooling down, the solvent was removed under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate) to give the titled reference compound (6.35 g) as a brown solid. (Yield 78%)

Provenance & Evidence