Dichloromethane → HCID 12327003, compound

Participants

Reaction Steps

Alternatively, 3-methoxy-7-oxo-7H-benzo[b]-phenaleno[2,1-d]furan was prepared by addition of 0.38 ml. (45 mmol.) of oxalyl chloride followed by 1.2 ml. (0.01 mol.) of stannic chloride to a solution of 1 g. (37 mmol.) of 2-(4-methoxynaphthyl)benzofuran in 100 ml. of methylene chloride at 0°. The reaction mixture was stirred for 1.5 hours at 0° then poured into water. The layers were separated and the organic phase was washed with 10% aqueous sodium carbonate, dried (MgSO4) and evaporated to dryness. The residue was chromatographed on silica with chloroform as eluant to give the product.

Provenance & Evidence