Phosphorus pentachloride → HCID 59562500, compound

Participants

Reaction Steps

To a solution of 1-methyl-8-oxa-bicyclo[3.2.1]octane-2,4-dione (175 mg, 1.14 mmol) in chloroform (2 ml) is added, under N2, in one portion, the phosphorous pentachloride (135 mg, 0.65 mmol). The reaction mixture is stirred for reflux for 5 hours. Silica gel is added to the cooled crude reaction mixture, the solvent is evaporated under reduced pressure and the residue is purified by flash chromatography on silica gel to give 4-chloro-1-methyl-8-oxa-bicyclo[3.2.1]oct-3-en-2-one (93 mg).

Provenance & Evidence