反应详情

A solution of (3R,5S)-5-[(1S)-1-[tert-butyl(diphenyl)silyl]oxypropyl]-3-methyl-tetrahydrofuran-2-one (compound 28f, 2.7 g, 6.8 mmol) in THF (10 mL) was added TBAF (1M in THF, 13.6 mL, 13.6 mmol) and the mixture was stirred at room temperature for 12 hours. Then the mixture was concentrated in vacuo and the residue was purified by column chromatography on silica gel (eluting with 1:30 to 1:20 EtOAc in petroleum ether) to afford 1.02 g of (3R,5S)-5-[(1S)-1-hydroxypropyl]-3-methyl-tetrahydrofuran-2-one (compound 28g) as a colourless oil.

1. concentrationThen the mixture was concentrated in vacuo
2. customthe residue was purified by column chromatography on silica gel (eluting with 1:30 to 1:20 EtOAc in petroleum ether)