2-butyloxirane

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of triethylphosphonoacetate (22.4 g, 0.1 mol) in 13 mL of diglyme is added to a mixture of 13 mL of diglyme and sodium hydride (60%, 5.7 g, 0.12 mol) in mineral oil. When hydrogen evolution ceased, 1,2-epoxyhexane (12 g, 0.12 mol) in diglyme (12 mL) is added. The mixture is stirred for 1 day at 25 degrees C. and 3 hours at 140 degrees C. A mixture of sodium hydroxide (15 g in 25 mL of water) is added in the cold. The mixture is refluxed 15 hours, diluted with cold water (100 mL), and washed with ether (3×50 mL). Acidification to pH=2 with sulfuric acid (25%), extraction with ether (5×25 mL), drying the ether over anhydrous sodium sulfate, filtration and concentration gives 2-butylcyclopropanecarboxylic acid. The acid (5.0 g, 0.035 mmol) in dichloromethane (15 mL) is heated with thionyl chloride (5.1 g, 3.1 mL) for 15 hours at 60 degrees C. The reaction mixture is distilled (76 degrees C.–80 degrees C.) to give the acid chloride which is dissolved in acetone (15 mL), cooled to −10 degrees C. and treated with sodium azide (2.2 g, 33.8 mmol) in water (5 mL). The reaction mixture is stirred at −10 degrees C. for another 1 hour and then poured onto ice/water, extracted with ether (3×10 mL), dried, and cautiously evaporated to dryness at 20–25 degrees C. under reduced pressure. The residue is dissolved in toluene (15 mL) and carefully warmed to 100 degrees C. while vigorously stirring for 1 hour. Concentrated hydrochloric acid (7 mL) is added and the reaction mixture is refluxed for 15 minutes. The acidic layer is evaporated to dryness to give the title compound, MH+=114.2. 3 hours at 140 degrees C is added in the cold The mixture is refluxed 15 hours washed with ether (3×50 mL) Acidification to pH=2 with sulfuric acid (25%), extraction with ether (5×25 mL) drying the ether over anhydrous sodium sulfate, filtration and concentration

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In the same manner as in Example 452, Step 1, the title compound was synthesized from 4-aminomethylbenzenesulfonamide hydrochloride and 1,2-epoxyhexane.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution (50 ml) of 4-methanesulfonylbenzylamine (5.0 g) and 1,2-epoxyhexane (3.25 g) in methanol was stirred at room temperature for 96 hrs. The reaction-mixture was concentrated under reduced pressure, and the obtained residue was purified by silica gel column chromatography (ethyl acetate-ethyl acetate:methanol=10:1) to give the title compound (2.9 g). The reaction-mixture was concentrated under reduced pressure the obtained residue was purified by silica gel column chromatography (ethyl acetate-ethyl acetate:methanol=10:1)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To 28.9 g (0.2 mole) the p-chlorothiophenol and 8.0 g (0.2 mole) of sodium hydroxide in 100 ml of water is added 22.0 g (0.22 mole) of 1,2-epoxyhexane over 10 minutes. When addition is completed, the mixture is heated to reflux for 16 hours. The mixture is cooled, combined with 300 ml of water and the organic phase is separated. When addition the mixture is heated to reflux for 16 hours The mixture is cooled the organic phase is separated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 1,2-epoxyhexane (2.0 mL, 17 mmol) and imidazole (1.08 g, 16 mmol) in acetonitrile (14 mL) was stirred at reflux for 19 h. The mixture was concentrated, taken up in 2.5 M aqueous hydrochloric acid (15 mL), washed with ethyl acetate (3×6 mL), basified with sodium carbonate and extracted with ethyl acetate (3×6 mL). The combined extracts were dried (Na2SO4) and concentrated. The residue was purified by flash column chromatography (SiO2, CH2Cl2-methanol-ammonium hydroxide 80:20:1) to give 1-(1H-imidazol-1-yl)-2-hexanol as a colorless oil, 1.68 g, 63% yield. NMR spectrum was consistent with structure. MS EI: M+• 168.1259 (M+• 168.1263). at reflux for 19 h The mixture was concentrated washed with ethyl acetate (3×6 mL) extracted with ethyl acetate (3×6 mL) The combined extracts were dried (Na2SO4) concentrated The residue was purified by flash column chromatography (SiO2, CH2Cl2-methanol-ammonium hydroxide 80:20:1)

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of triethylphosphonoacetate (22.4 g, 0.1 mol) in 13 mL of diglyme is added to a mixture of 13 mL of diglyme and sodium hydride (60%, 5.7 g, 0.12 mol) in mineral oil. When hydrogen evolution ceased, 1,2-epoxyhexane (12 g, 0.12 mol) in diglyme (12 mL) is added. The mixture is stirred for 1 day at 25 degrees C. and 3 hours at 140 degrees C. A mixture of sodium hydroxide (15 g in 25 mL of water) is added in the cold. The mixture is refluxed 15 hours, diluted with cold water (100 mL), and washed with ether (3×50 mL). Acidification to pH=2 with sulfuric acid (25%), extraction with ether (5×25 mL), drying the ether over anhydrous sodium sulfate, filtration and concentration gives 2-butylcyclopropanecarboxylic acid. The acid (5.0 g, 0.035 mmol) in dichloromethane (15 mL) is heated with thionyl chloride (5.1 g, 3.1 mL) for 15 hours at 60 degrees C. The reaction mixture is distilled (76 degrees C.–80 degrees C.) to give the acid chloride which is dissolved in acetone (15 mL), cooled to −10 degrees C. and treated with sodium azide (2.2 g, 33.8 mmol) in water (5 mL). The reaction mixture is stirred at −10 degrees C. for another 1 hour and then poured onto ice/water, extracted with ether (3×10 mL), dried, and cautiously evaporated to dryness at 20–25 degrees C. under reduced pressure. The residue is dissolved in toluene (15 mL) and carefully warmed to 100 degrees C. while vigorously stirring for 1 hour. Concentrated hydrochloric acid (7 mL) is added and the reaction mixture is refluxed for 15 minutes. The acidic layer is evaporated to dryness to give the title compound, MH+=114.2. 3 hours at 140 degrees C is added in the cold The mixture is refluxed 15 hours washed with ether (3×50 mL) Acidification to pH=2 with sulfuric acid (25%), extraction with ether (5×25 mL) drying the ether over anhydrous sodium sulfate, filtration and concentration