反应详情

1 g of 9,9-bis(hydroxymethyl)-fluorene was admixed with 20 ml of dichloromethane. The mixture was cooled in ice-water bath, and 1.9 ml of triethyl amine was added thereto. Then 1.4 ml of trimethylsilyl chloride was added drop-wise, and the mixture was stirred in ice-water bath for further 2 hours. The reaction mixture was washed with water, and the organic layer separated was dried over anhydrous sodium sulfate. After filtration, the filtrate was evaporated to give 1.41 g of concentrate (yield 88%). The crude product was purified by column chromatography using petroleum ether as eluent, to give colorless pure compound. MS (El) m/e: 370(M+).

1. washThe reaction mixture was washed with water
2. customthe organic layer separated
3. dry with materialwas dried over anhydrous sodium sulfate
4. filtrationAfter filtration
5. customthe filtrate was evaporated
6. customto give 1.41 g
7. concentrationof concentrate (yield 88%)
8. customThe crude product was purified by column chromatography
9. customto give colorless pure compound