Tetrahydrofuran → HCID 59608871, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 36.66 g (156.44 mmol) of 2-(1-methoxy-2,5,6-trimethyl-2,3-dihydro-1H-inden-4-yl)ethanol and 41 g (156.44 mmol) PPh3 in 650 ml of THF 27.85 g (156.44 mmol) of NBS was added at vigorous stirring for 5 min at 0° C. This mixture was stirred for 2 h at room temperature and then evaporated to dryness. A solution of the residue in 500 ml of hexanes was filtered through glass frit (G3), and the precipitate was additionally washed by 3×300 ml hexanes. The combined organic extract was evaporated to dryness. The product was isolated from the residue using flash chromatography on Silica Gel 60 (40-63 um, d 80 mm, 1250 mm; eluent: hexanes/ether=20/1, vol.). Yield 31.38 g (67%) of ca. 1 to 2 mixture of diastereomers.

Provenance & Evidence