Water → HCID 22630136, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of cyclohexanol 8 (1.96 g, 10 mmol) in dry benzene (20 ml) under argon was added azidotrimethylsilane (12 mmol). To this cooled (5° C.) solution was slowly added BF3*OEt2 (12 mmol) via syringe within 20 min. The mixture was stirred for 6 h, then water was slowly added. The organic layer was separated and washed with saturated aqueous NaHCO3, and with brine, and dried over MgSO4. Filtration and evaporation of the solvent keeping the temperature below 25° C. gave an oil which was separated by column chromatography on silica gel (light petroleum ether). A fraction with Rf 0.85 (hexane) was collected. Evaporation of the solvent provided 9 as a colorless oil (0.26 g, 11.7%). 1H NMR (CDCl3, TMS): 0.89 (6H, s, 3,5-CH3eq); 0.90 (1H, d, 14 Hz, 4-CHax); 1.05 (2H, d, 14 Hz, 2,6-CHax); 1.18 (6H, s, 3,5-CH3ax); 1.37 (1H, d, 14 Hz, 4-CHeq); 1.60 (2H, d, 14 Hz, 2,6-CHeq), 2.29 (2H, d, 7 Hz, CH2C═); 4.95-5.25 (2H, m, ═CH2) and 5.65-6.15 ppm (1H, m, ═CH).

Provenance & Evidence