(2R,3S)-1,2-Epoxy-3-hydroxy-4-pentene

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 428 mg of sodium hydride (60% in oil) was suspended in 8 ml of THF, and a THF solution (5 ml) of 970 mg of (2R,3S)-1,2-epoxypent-4-ene-3-ol was dropwise added thereto under an argon atmosphere at -10° C. The mixture was stirred at room temperature for 20 minutes. Then, 360 mg of tetra-n-butylammonium iodide and 1.27 ml of benzyl bromide were added thereto at -10° C. The mixture was stirred at room temperature for two hours, and then poured into a saturated ammonium chloride aqueous solution and extracted with ethyl acetate. The ethyl acetate layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1) to obtain 1.7 g of (2R,3S)-3-benzyloxy-l,2-epoxy-4-pentene as colorless oily substance. at -10° C at -10° C The mixture was stirred at room temperature for two hours extracted with ethyl acetate The ethyl acetate layer was dried over anhydrous magnesium sulfate the solvent was distilled off The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 428 mg of sodium hydride (60% in oil) was suspended in 8 ml of THF, and a THF solution (5 ml) of 970 mg of (2R,3S)-1,2-epoxypent-4-ene-3-ol was dropwise added thereto under an argon atmosphere at -10° C. The mixture was stirred at room temperature for 20 minutes. Then, 360 mg of tetra-n-butylammonium iodide and 1.27 ml of benzyl bromide were added thereto at -10° C. The mixture was stirred at room temperature for two hours, and then poured into a saturated ammonium chloride aqueous solution and extracted with ethyl acetate. The ethyl acetate layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1) to obtain 1.7 g of (2R,3S)-3-benzyloxy-1,2-epoxy-4-pentene as colorless oily substance. at -10° C at -10° C The mixture was stirred at room temperature for two hours extracted with ethyl acetate The ethyl acetate layer was dried over anhydrous magnesium sulfate the solvent was distilled off The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 428 mg of sodium hydride (60% in oil) was suspended in 8 ml of THF, and a THF solution (5 ml) of 970 mg of (2R,3S)-1,2-epoxypent-4-ene-3-ol was dropwise added thereto under an argon atmosphere at -10° C. The mixture was stirred at room temperature for 20 minutes. Then, 360 mg of tetra-n-butylammonium iodide and 1.27 ml of benzyl bromide were added thereto at -10° C. The mixture was stirred at room temperature for two hours, and then poured into a saturated ammonium chloride aqueous solution and extracted with ethyl acetate. The ethyl acetate layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1) to obtain 1.7 g of (2R,3S)-3-benzyloxy-1,2-epoxy-4-pentene as colorless oily substance. at -10° C at -10° C The mixture was stirred at room temperature for two hours extracted with ethyl acetate The ethyl acetate layer was dried over anhydrous magnesium sulfate the solvent was distilled off The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 428 mg of sodium hydride (60% in oil) was suspended in 8 ml of THF, and a THF solution (5 ml) of 970 mg of (2R,3S)-1,2-epoxypent-4-ene-3-ol was dropwise added thereto under an argon atmosphere at -10° C. The mixture was stirred at room temperature for 20 minutes. Then, 360 mg of tetra-n-butylammonium iodide and 1.27 ml of benzyl bromide were added thereto at -10° C. The mixture was stirred at room temperature for two hours, and then poured into a saturated ammonium chloride aqueous solution and extracted with ethyl acetate. The ethyl acetate layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1) to obtain 1.7 g of (2R,3S)-3-benzyloxy-l,2-epoxy-4-pentene as colorless oily substance. at -10° C at -10° C The mixture was stirred at room temperature for two hours extracted with ethyl acetate The ethyl acetate layer was dried over anhydrous magnesium sulfate the solvent was distilled off The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 428 mg of sodium hydride (60% in oil) was suspended in 8 ml of THF, and a THF solution (5 ml) of 970 mg of (2R,3S)-1,2-epoxypent-4-ene-3-ol was dropwise added thereto under an argon atmosphere at -10° C. The mixture was stirred at room temperature for 20 minutes. Then, 360 mg of tetra-n-butylammonium iodide and 1.27 ml of benzyl bromide were added thereto at -10° C. The mixture was stirred at room temperature for two hours, and then poured into a saturated ammonium chloride aqueous solution and extracted with ethyl acetate. The ethyl acetate layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1) to obtain 1.7 g of (2R,3S)-3-benzyloxy-l,2-epoxy-4-pentene as colorless oily substance. at -10° C at -10° C The mixture was stirred at room temperature for two hours extracted with ethyl acetate The ethyl acetate layer was dried over anhydrous magnesium sulfate the solvent was distilled off The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 428 mg of sodium hydride (60% in oil) was suspended in 8 ml of THF, and a THF solution (5 ml) of 970 mg of (2R,3S)-1,2-epoxypent-4-ene-3-ol was dropwise added thereto under an argon atmosphere at -10° C. The mixture was stirred at room temperature for 20 minutes. Then, 360 mg of tetra-n-butylammonium iodide and 1.27 ml of benzyl bromide were added thereto at -10° C. The mixture was stirred at room temperature for two hours, and then poured into a saturated ammonium chloride aqueous solution and extracted with ethyl acetate. The ethyl acetate layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1) to obtain 1.7 g of (2R,3S)-3-benzyloxy-1,2-epoxy-4-pentene as colorless oily substance. at -10° C at -10° C The mixture was stirred at room temperature for two hours extracted with ethyl acetate The ethyl acetate layer was dried over anhydrous magnesium sulfate the solvent was distilled off The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 428 mg of sodium hydride (60% in oil) was suspended in 8 ml of THF, and a THF solution (5 ml) of 970 mg of (2R,3S)-1,2-epoxypent-4-ene-3-ol was dropwise added thereto under an argon atmosphere at -10° C. The mixture was stirred at room temperature for 20 minutes. Then, 360 mg of tetra-n-butylammonium iodide and 1.27 ml of benzyl bromide were added thereto at -10° C. The mixture was stirred at room temperature for two hours, and then poured into a saturated ammonium chloride aqueous solution and extracted with ethyl acetate. The ethyl acetate layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=0/1) to obtain 1.7 g of (2R,3S)-3-benzyloxy-1,2-epoxy-4-pentene as colorless oily substance. at -10° C at -10° C The mixture was stirred at room temperature for two hours extracted with ethyl acetate The ethyl acetate layer was dried over anhydrous magnesium sulfate the solvent was distilled off The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=0/1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 428 mg of sodium hydride (60% in oil) was suspended in 8 ml of THF, and a THF solution (5 ml) of 970 mg of (2R,3S)-1,2-epoxypent-4-ene-3-ol was dropwise added thereto under an argon atmosphere at -10° C. The mixture was stirred at room temperature for 20 minutes. Then, 360 mg of tetra-n-butylammonium iodide and 1.27 ml of benzyl bromide were added thereto at -10° C. The mixture was stirred at room temperature for two hours, and then poured into a saturated ammonium chloride aqueous solution and extracted with ethyl acetate. The ethyl acetate layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1) to obtain 1.7 g of (2R,3S)-3-benzyloxy-1,2-epoxy-4-pentene as colorless oily substance. at -10° C at -10° C The mixture was stirred at room temperature for two hours extracted with ethyl acetate The ethyl acetate layer was dried over anhydrous magnesium sulfate the solvent was distilled off The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 428 mg of sodium hydride (60% in oil) was suspended in 8 ml of THF, and a THF solution (5 ml) of 970 mg of (2R,3S)-1,2-epoxypent-4-ene-3-ol was dropwise added thereto under an argon atmosphere at -10° C. The mixture was stirred at room temperature for 20 minutes. Then, 360 mg of tetra-n-butylammonium iodide and 1.27 ml of benzyl bromide were added thereto at -10° C. The mixture was stirred at room temperature for two hours, and then poured into a saturated ammonium chloride aqueous solution and extracted with ethyl acetate. The ethyl acetate layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1) to obtain 1.7 g of (2R,3S)-3-benzyloxy-1,2-epoxy-4-pentene as colorless oily substance. at -10° C at -10° C The mixture was stirred at room temperature for two hours extracted with ethyl acetate The ethyl acetate layer was dried over anhydrous magnesium sulfate the solvent was distilled off The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 428 mg of sodium hydride (60% in oil) was suspended in 8 ml of THF, and a THF solution (5 ml) of 970 mg of (2R,3S)-1,2-epoxypent-4-ene-3-ol was dropwise added thereto under an argon atmosphere at -10° C. The mixture was stirred at room temperature for 20 minutes. Then, 360 mg of tetra-n-butylammonium iodide and 1.27 ml of benzyl bromide were added thereto at -10° C. The mixture was stirred at room temperature for two hours, and then poured into a saturated ammonium chloride aqueous solution and extracted with ethyl acetate. The ethyl acetate layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1) to obtain 1.7 g of (2R,3S)-3-benzyloxy-l,2-epoxy-4-pentene as colorless oily substance. at -10° C at -10° C The mixture was stirred at room temperature for two hours extracted with ethyl acetate The ethyl acetate layer was dried over anhydrous magnesium sulfate the solvent was distilled off The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=10/1)