(E,E)-2,4-十二碳二烯醛

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

实验步骤: Methyl 5,6-dihydroxyhexanoate (0.32 g, 2.0 mmol), 2E,4E-dodecadienal and catalytic pyridinium p-toluenesulfonate (PPTS) were refluxed in 10 ml of benzene for 39 hours with a Dean-Stark trap. Molecular sieves were added after 19 hours. The reaction mixture was cooled, filtered and concentrated. Flash chromatography on silica gel with 25:1 hexane/ethyl acetate as eluent gave the product (0.10 g, 0.31 mmol), 15%. Molecular sieves were added after 19 hours The reaction mixture was cooled filtered concentrated

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

实验步骤: Methyl 5,6-dihydroxyhexanoate (0.32 g, 2.0 mmol), 2E,4E-dodecadienal and catalytic pyridinium p-toluenesulfonate (PPTS) were refluxed in 10 ml of benzene for 39 hours with a Dean-Stark trap. Molecular sieves were added after 19 hours. The reaction mixture was cooled, filtered and concentrated. Flash chromatography on silica gel with 25:1 hexane/ethyl acetate as eluent gave the product (0.10 g, 0.31 mmol), 15%. Molecular sieves were added after 19 hours The reaction mixture was cooled filtered concentrated

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

实验步骤: Methyl 5,6-dihydroxyhexanoate (0.32 g, 2.0 mmol), 2E,4E-dodecadienal and catalytic pyridinium p-toluenesulfonate (PPTS) were refluxed in 10 ml of benzene for 39 hours with a Dean-Stark trap. Molecular sieves were added after 19 hours. The reaction mixture was cooled, filtered and concentrated. Flash chromatography on silica gel with 25:1 hexane/ethyl acetate as eluent gave the product (0.10 g, 0.31 mmol), 15%. Molecular sieves were added after 19 hours The reaction mixture was cooled filtered concentrated