HCID 86609102, compound → HCID 86609104, compound

Participants

Reaction Steps

A solution of [(2R)-8-(2,6-dichlorophenyl)-2H-chromen-2-yl]methyl 4-methylbenzenesulfonate (0.846 g, 1.83 mmol) in ethyl acetate (10 mL) was added to a suspension of platinum (IV) oxide (45 mg, 0.198 mmol) in absolute ethanol (30 mL) and the mixture hydrogenated at 10 psi of hydrogen for 100 minutes. The reaction mixture was then filtered through celite and the filtrate concentrated under reduced pressure to afford a brown syrup. Purification by flash chromatography using a solvent gradient of 5 to 20% ethyl acetate in hexane afforded 0.548 g (64%) of [(2R)-8-(2.6-dichlorophenyl)-3,4-dihydro-2H-chromen-2-yl]methyl 4-methylbenzenesulfonate as a yellow solid. HRMS: calcd for C23H20Cl2O4S+H+, 463.0532 1. found (ESI, [M+H]+), 463.0555.

Provenance & Evidence