diethyl 2-butylpropanedioate

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 4-n-Butyl-1-[4-(3-methoxyprop-1-ynyl)phenyl]-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane was prepared from diethyl n-butyl-malonate in a manner analogous to the synthesis of 1-[4-(3-methoxyprop-1-ynyl)phenyl]-4-n-propyl-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 4-n-Butyl-1-[4-(3-methoxyprop-1-ynyl)phenyl]-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane was prepared from diethyl n-butyl-malonate in a manner analogous to the synthesis of 1-[4-(3-methoxyprop-1-ynyl)phenyl]-4-n-propyl-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 4-n-Butyl-1-[4-(3-methoxyprop-1-ynyl)phenyl]-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane was prepared from diethyl n-butyl-malonate in a manner analogous to the synthesis of 1-[4-(3-methoxyprop-1-ynyl)phenyl]-4-n-propyl-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane

反応条件: temp:5.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of sodium hydride (50% w/w suspension in mineral oil, 2.40 g, 50.0 mmol) in dimethylsulfoxide (50 mL) was cooled to 5° C., and a solution of diethyl butylmalonate (10.0 mL, 45.5 mmol) in dimethylsulfoxide (10 mL) was added dropwise with vigorous stirring. After 4 hours, the solution was treated with iodooctane (8.20 mL, 44.3 mmol), and the solution was stirred an additional 12 hours. It was poured into water (400 mL), and extracted with ethyl acetate (2×500 mL). The extracts were washed in sequence with water (3×400 mL), then saturated brine (400 mL). The extracts were then combined, dried over anhydrous magnesium sulfate, filtered and evaporated. The resulting oil was separated by flash chromatography (3:97 ethyl acetate-hexane) to afford the product, diethyl butyl-octylmalonate, as an oil (13.7 g, 41.7 mmol, 94%). extracted with ethyl acetate (2×500 mL) The extracts were washed in sequence with water (3×400 mL) dried over anhydrous magnesium sulfate filtered evaporated The resulting oil was separated by flash chromatography (3:97 ethyl acetate-hexane)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2,2-di-hydroxymethyl-hexan-1-thiol was prepared in an analogous manner to 2,2-di-hydroxymethyl-4-methyl-pentan-1-thiol starting from diethyl n-butylmalonate.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2,2-di-hydroxymethyl-hexan-1-thiol was prepared in an analogous manner to 2,2-di-hydroxymethyl-4-methyl-pentan-1-thiol starting from diethyl n-butylmalonate.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: The 2-benzylalkanoic and 2-butylalkanoic acids were prepared by the malonic ester method starting from diethyl benzylmalonate or diethyl butylmalonate and the appropriate alkyl bromide. The procedure used was analogous to that for the preparation of 2-methyldecanoic acid. Preparation of 2,2-dibutyldodecanoic acid was accomplished by alkylation of 2-butyldodecanoic acid using the method of Pfeffer, Silbert, and Chirinko. Hydrogenation of phytol followed by oxidation of the resulting saturated alcohol with a solution of chromium trioxide in acetic acid gave 3,7,11,15-tetramethylhexadecanoic acid.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: The 2-benzylalkanoic and 2-butylalkanoic acids were prepared by the malonic ester method starting from diethyl benzylmalonate or diethyl butylmalonate and the appropriate alkyl bromide. The procedure used was analogous to that for the preparation of 2-methyldecanoic acid. Preparation of 2,2-dibutyldodecanoic acid was accomplished by alkylation of 2-butyldodecanoic acid using the method of Pfeffer, Silbert, and Chirinko. Hydrogenation of phytol followed by oxidation of the resulting saturated alcohol with a solution of chromium trioxide in acetic acid gave 3,7,11,15-tetramethylhexadecanoic acid.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 4-n-Butyl-1-[4-(3-methoxyprop-1ynyl)phenyl]-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane was prepared from diethyl n-butyl-malonate in a manner analogous to the synthesis of 1-[4-(3-methoxyprop-1-ynyl)phenyl]-4-n-propyl-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 4-n-Butyl-1-[4-(3-methoxyprop-1-ynyl)phenyl]-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane was prepared from diethyl n-butyl-malonate in a manner analogous to the synthesis of 1-[4-(3-methoxyprop-1-ynyl)phenyl]-4-n-propyl-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 4-n-Butyl-1-[4-(3-methoxyprop-1-ynyl)phenyl]-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane was prepared from diethyl n-butyl-malonate in a manner analogous to the synthesis of 1-[4-(3-methoxyprop-1-ynyl)phenyl]-4-n-propyl-3-trifluoromethyl-2,6,7-trioxabicyclo[2,2,2]octane