2-十三醇

反应条件: temp:57.51; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred solution of tridecan-2-ol 68 (5 g, 24.9 mmol) in toluene (50 mL) was added triethylamine (3.5 mL, 27.45 mmol)) and followed by 2-bromo-2-methylpropionyl bromide 97 (6.31 g, 27.45 mmol) at 5-10° C. The reaction mixture was stirred for 3 hour at 55-60° C., and the reaction was monitored by TLC. The reaction mixture was quenched with saturated sodium bicarbonate solution and stirred for 15 minutes at 25-35° C. The aqueous and organic layers were separated. The organic layer was washed with brine, and the combined organic layers were washed with brine solution. The organic layer was dried over Na2SO4 and concentrated under vacuum to afford crude 98 (8.1 g, yield: 96%) as a liquid. The reaction mixture was quenched with saturated sodium bicarbonate solution stirred for 15 minutes at 25-35° C The aqueous and organic layers were separated The organic layer was washed with brine the combined organic layers were washed with brine solution The organic layer was dried over Na2SO4 concentrated under vacuum

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 DL-alanine 1 (15 g, 168.5 mmol) in toluene (300 mL) was added 2-tridecanol 68 (30.3 g, 151.68 mmol) in one lot, followed by pTSA (35.26 g, 185.38 mmol). After the addition, the temperature of the reaction mixture was slowly raised to reflux temperature, the water was separated azeotropically and the reaction mixture was monitored by TLC. The reaction mixture was concentrated under vacuum, the obtained residue was taken in ethyl acetate (200 mL) and washed with aqueous 5% Na2CO3 (3×50 mL) followed by brine solution. The organic layer was dried over Na2SO4 and concentrated under vacuum to afford 69 (36 g, yield: 78.9%) as a liquid. After the addition the temperature of the reaction mixture was slowly raised to reflux temperature the water was separated azeotropically The reaction mixture was concentrated under vacuum washed with aqueous 5% Na2CO3 (3×50 mL) The organic layer was dried over Na2SO4 concentrated under vacuum