掠桐酸乙酯

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: To a solution of n-butyl lithium (hexane, 0.048 mol) in 120 mL of anhydrous tetrahydrofuran at 0° C. and under argon atmosphere, diisopropylamine was added (6.8 mL, 0.048 mol). Afterwards, ethyl hexadecanoate (11.3 g, 0.04 mol) in tetrahydrofuran (15 mL) was added dropwise and the homogeneous solution was stirred for 1 h at the same temperature. Next, allyl bromide (4.0 mL, 0.048 mol) was added and the resulting mixture was stirred at room temperature for 12 h. The mixture was poured on water, extracted with ethyl acetate, dried over anhydrous sodium sulfate and the solvent evaporated to afford 11.9 g of an oil. The product was chromatographed (silica gel, hexane: ethyl acetate, 3%) to afford 8.7 g of a colorless oil (67% yield). the resulting mixture was stirred at room temperature for 12 h The mixture was poured on water extracted with ethyl acetate dried over anhydrous sodium sulfate the solvent evaporated

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: 14.2 g. of ethyl palmitate and 2 g. of hydroxylamine are reacted at room temperature in 300 ml. of ethanol in the presence of 1.7 g. of the sodium salt of 2-hydroxyquinoline. The reaction is complete in 5 hours, and 11.7 g, of palmitohydroxamic acid are obtained (yield: 85%), m.p. 100° - 101° C. after recrystallization from ethanol-petroleum ether(1:1).

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

实验步骤: 14.2 g. of ethyl palmitate and 2 g. of hydroxylamine are reacted at room temperature in 300 ml. of ethanol in the presence of 1.7 g. of the sodium salt of 2-hydroxyquinoline. The reaction is complete in 5 hours, and 11.7 g. of palmitohydroxamic acid are obtained (yield: 85 percent), m.p. 100° - 101° C. after recrystallization from ethanol-petroleum ether (1:1).

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

实验步骤: 14.2 g. of ethyl palmitate and 2 g. of hydroxylamine are reacted at room temperature in 300 ml. of ethanol in the presence of 1.7 g. of the sodium salt of 2-hydroxyquinoline. The reaction is complete in 5 hours, and 11.7 g. of palmitohydroxamic acid are obtained (yield: 85 percent), m.p. 100° - 101° C. after recrystallization from ethanol-petroleum ether (1:1).

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

实验步骤: To a solution of n-butyl lithium (hexane, 0.048 mol) in 120 mL of anhydrous tetrahydrofuran at 0° C. and under argon atmosphere, diisopropylamine was added (6.8 mL, 0.048 mol). Afterwards, ethyl hexadecanoate (11.3 g, 0.04 mol) in tetrahydrofuran (15 mL) was added dropwise and the homogeneous solution was stirred for 1 h at the same temperature. Next, allyl bromide (4.0 mL, 0.048 mol) was added and the resulting mixture was stirred at room temperature for 12 h. The mixture was poured on water, extracted with ethyl acetate, dried over anhydrous sodium sulfate and the solvent evaporated to afford 11.9 g of an oil. The product was chromatographed (silica gel, hexane: ethyl acetate, 3%) to afford 8.7 g of a colorless oil (67% yield). the resulting mixture was stirred at room temperature for 12 h The mixture was poured on water extracted with ethyl acetate dried over anhydrous sodium sulfate the solvent evaporated

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

实验步骤: 14.2 g. of ethyl palmitate and 2 g. of hydroxylamine are reacted at room temperature in 300 ml. of ethanol in the presence of 1.7 g. of the sodium salt of 2-hydroxyquinoline. The reaction is complete in 5 hours, and 11.7 g. of palmitohydroxamic acid are obtained (yield: 85%), m.p. 100° - 101°C. after recrystallization from ethanol-petroleum ether(1:1).

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

实验步骤: 14.2 g. of ethyl palmitate and 2 g. of hydroxylamine are reacted at room temperature in 300 ml. of ethanol in the presence of 1.7 g. of the sodium salt of 2-hydroxyquinoline. The reaction is complete in 5 hours, and 11.7 g, of palmitohydroxamic acid are obtained (yield: 85%), m.p. 100° - 101° C. after recrystallization from ethanol-petroleum ether(1:1).

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

实验步骤: 14.2 g. of ethyl palmitate and 2 g. of hydroxylamine are reacted at room temperature in 300 ml. of ethanol in the presence of 1.7 g. of the sodium salt of 2-hydroxyquinoline. The reaction is complete in 5 hours, and 11.7 g. of palmitohydroxamic acid are obtained (yield: 85 percent), m.p. 100° - 101° C. after recrystallization from ethanol-petroleum ether (1:1).

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

实验步骤: To a solution of n-butyl lithium (hexane, 0.048 mol) in 120 mL of anhydrous tetrahydrofuran at 0° C. and under argon atmosphere, diisopropylamine was added (6.8 mL, 0.048 mol). Afterwards, ethyl hexadecanoate (11.3 g, 0.04 mol) in tetrahydrofuran (15 mL) was added dropwise and the homogeneous solution was stirred for 1 h at the same temperature. Next, allyl bromide (4.0 mL, 0.048 mol) was added and the resulting mixture was stirred at room temperature for 12 h. The mixture was poured on water, extracted with ethyl acetate, dried over anhydrous sodium sulfate and the solvent evaporated to afford 11.9 g of an oil. The product was chromatographed (silica gel, hexane: ethyl acetate, 3%) to afford 8.7 g of a colorless oil (67% yield). the resulting mixture was stirred at room temperature for 12 h The mixture was poured on water extracted with ethyl acetate dried over anhydrous sodium sulfate the solvent evaporated