反应 #3736065
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US06610711B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a stirred solution of (E)-3-cyclohexyl-2-propen-1-ol (A. G. M. Barrett et al, Tetrahedron, 1996, 52, 15325), (1.47 g, 10.5 mmol) in diethyl ether (20 ml) and pyridine (1 ml) was added phosphorus tribromide (1.40 ml, 15 mmol) dropwise at room temperature under an atmosphere of nitrogen. After 16 h, the reaction mixture was carefully poured onto ice water (100 ml) and extracted with diethyl ether (100 ml). The extract was washed with saturated aqueous sodium hydrogen carbonate solution (100 ml), dried (MgSO4) and concentrated in vacuo to give the crude product. This was purified by silica (20 g) column chromatography eluting with hexane:ethyl acetate (4:1) to give the title compound as a colourless oil (1.3 g, 61%). the reaction mixture was carefully poured onto ice water (100 ml) extracted with diethyl ether (100 ml) The extract was washed with saturated aqueous sodium hydrogen carbonate solution (100 ml) dried (MgSO4) concentrated in vacuo to give the crude product This was purified by silica (20 g) column chromatography eluting with hexane:ethyl acetate (4:1)
来源 ID: ord-1aedfde6431c48ad8cefd83a1cec963f