2-[2-(2-prop-2-enoxyethoxy)ethoxy]ethanol

反応条件: temp:0.00; pressure:0.00; stir:

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: To a stirred solution of alcohol (15) (3.83 g, 20.1 mmol, 1.0 equiv.) and pyridine (0.16 mL, 2.00 mmol, 0.1 equiv.) in Et2O (20 mL) was added dropwise phosphorus tribromide (0.74 mL, 7.60 mmol, 0.36 equiv.) at 0° C. After 30 min, the reaction was allowed to warm to room temperature. As the reaction was not completed after 12 h, pyridine (1.60 mL, 20.0 mmol, 1.0 equiv.) and sodium bromide (4.14 g, 40.2 mmol, 2.0 equiv.) were successively added. After 12 h of reflux, the resulting solution was submitted to a EtOAc/NH4Cl-saturated aqueous solution extraction. The combined organic phases were dried over anhydrous Na2SO4, filtered then evaporated under reduced pressure. Purification was achieved by column chromatography (Hexanes/EtOAc gradient) to afford bromide (16) (0.90 g, 18%) as a yellow oil; 1H NMR (300 MHz, CDCl3) δ 5.93 (ddt, J=17.3, 10.5, 5.7 Hz, 1H), 5.28 (dq, J=17.3, 1.5 Hz, 1H), 5.19 (dq, J=10.5, 1.5 Hz, 1H), 4.03 (dt, J=5.7, 1.5 Hz, 2H), 3.82 (t, J=6.3 Hz, 2H), 3.71-3.65 (m, 6H), 3.64-3.59 (m, 2H), 3.48 (t, J=6.3 Hz, 2H); 13C NMR (75 MHz, CDCl3) δ 134.9, 117.4, 72.5, 71.4, 70.9, 70.8, 70.7, 69.6, 30.5. As the reaction was not completed after 12 h After 12 h of reflux the resulting solution was submitted to a EtOAc/NH4Cl-saturated aqueous solution extraction The combined organic phases were dried over anhydrous Na2SO4 filtered then evaporated under reduced pressure Purification

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

実験手順: To a stirred solution of ester (14) (4.60 g, 21.1 mmol, 1.0 equiv.) in THF (60 mL) was carefully added one portion of LAH (0.50 g, 12.5 mmol, 0.5 equiv.) at 0° C. After 30 min, another portion of LAH was carefully added and the reaction was stirred for an additional 30 min. The reaction was then carefully quenched with a Na2SO4-saturated aqueous solution. The resulting white aluminum salts were then filtered off over a short plug of Celite (EtOAc washings) and the filtrate was finally evaporated under reduced pressure to afford pure alcohol (15) (no purification required) as a pale yellow oil (3.89 g, 97%). Spectroscopic data were consistent with those reported in the literature:26a 1H NMR (400 MHz, CDCl3) δ 5.93 (ddt, J=17.2, 10.3, 5.7 Hz, 1H), 5.28 (dq, J=17.2, 1.5 Hz, 1H), 5.19 (dq, J=10.3, 1.5 Hz, 1H), 4.04 (dt, J=5.7, 1.5 Hz, 2H), 3.78-3.58 (m, 12H); 13C NMR (75 MHz, CDCl3) δ 134.8, 117.3, 72.7, 72.4, 70.8, 70.7, 70.5, 69.5, 61.8. The reaction was then carefully quenched with a Na2SO4-saturated aqueous solution The resulting white aluminum salts were then filtered off over a short plug of Celite (EtOAc washings) the filtrate was finally evaporated under reduced pressure

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

実験手順: To a stirred solution of ester (14) (4.60 g, 21.1 mmol, 1.0 equiv.) in THF (60 mL) was carefully added one portion of LAH (0.50 g, 12.5 mmol, 0.5 equiv.) at 0° C. After 30 min, another portion of LAH was carefully added and the reaction was stirred for an additional 30 min. The reaction was then carefully quenched with a Na2SO4-saturated aqueous solution. The resulting white aluminum salts were then filtered off over a short plug of Celite (EtOAc washings) and the filtrate was finally evaporated under reduced pressure to afford pure alcohol (15) (no purification required) as a pale yellow oil (3.89 g, 97%). Spectroscopic data were consistent with those reported in the literature:26a 1H NMR (400 MHz, CDCl3) δ 5.93 (ddt, J=17.2, 10.3, 5.7 Hz, 1H), 5.28 (dq, J=17.2, 1.5 Hz, 1H), 5.19 (dq, J=10.3, 1.5 Hz, 1H), 4.04 (dt, J=5.7, 1.5 Hz, 2H), 3.78-3.58 (m, 12H); 13C NMR (75 MHz, CDCl3) δ 134.8, 117.3, 72.7, 72.4, 70.8, 70.7, 70.5, 69.5, 61.8. The reaction was then carefully quenched with a Na2SO4-saturated aqueous solution The resulting white aluminum salts were then filtered off over a short plug of Celite (EtOAc washings) the filtrate was finally evaporated under reduced pressure

反応条件: temp:0.00; pressure:0.00; stir:

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: To a stirred solution of alcohol (15) (3.83 g, 20.1 mmol, 1.0 equiv.) and pyridine (0.16 mL, 2.00 mmol, 0.1 equiv.) in Et2O (20 mL) was added dropwise phosphorus tribromide (0.74 mL, 7.60 mmol, 0.36 equiv.) at 0° C. After 30 min, the reaction was allowed to warm to room temperature. As the reaction was not completed after 12 h, pyridine (1.60 mL, 20.0 mmol, 1.0 equiv.) and sodium bromide (4.14 g, 40.2 mmol, 2.0 equiv.) were successively added. After 12 h of reflux, the resulting solution was submitted to a EtOAc/NH4Cl-saturated aqueous solution extraction. The combined organic phases were dried over anhydrous Na2SO4, filtered then evaporated under reduced pressure. Purification was achieved by column chromatography (Hexanes/EtOAc gradient) to afford bromide (16) (0.90 g, 18%) as a yellow oil; 1H NMR (300 MHz, CDCl3) δ 5.93 (ddt, J=17.3, 10.5, 5.7 Hz, 1H), 5.28 (dq, J=17.3, 1.5 Hz, 1H), 5.19 (dq, J=10.5, 1.5 Hz, 1H), 4.03 (dt, J=5.7, 1.5 Hz, 2H), 3.82 (t, J=6.3 Hz, 2H), 3.71-3.65 (m, 6H), 3.64-3.59 (m, 2H), 3.48 (t, J=6.3 Hz, 2H); 13C NMR (75 MHz, CDCl3) δ 134.9, 117.4, 72.5, 71.4, 70.9, 70.8, 70.7, 69.6, 30.5. As the reaction was not completed after 12 h After 12 h of reflux the resulting solution was submitted to a EtOAc/NH4Cl-saturated aqueous solution extraction The combined organic phases were dried over anhydrous Na2SO4 filtered then evaporated under reduced pressure Purification

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

実験手順: To a stirred solution of ester (14) (4.60 g, 21.1 mmol, 1.0 equiv.) in THF (60 mL) was carefully added one portion of LAH (0.50 g, 12.5 mmol, 0.5 equiv.) at 0° C. After 30 min, another portion of LAH was carefully added and the reaction was stirred for an additional 30 min. The reaction was then carefully quenched with a Na2SO4-saturated aqueous solution. The resulting white aluminum salts were then filtered off over a short plug of Celite (EtOAc washings) and the filtrate was finally evaporated under reduced pressure to afford pure alcohol (15) (no purification required) as a pale yellow oil (3.89 g, 97%). Spectroscopic data were consistent with those reported in the literature:26a 1H NMR (400 MHz, CDCl3) δ 5.93 (ddt, J=17.2, 10.3, 5.7 Hz, 1H), 5.28 (dq, J=17.2, 1.5 Hz, 1H), 5.19 (dq, J=10.3, 1.5 Hz, 1H), 4.04 (dt, J=5.7, 1.5 Hz, 2H), 3.78-3.58 (m, 12H); 13C NMR (75 MHz, CDCl3) δ 134.8, 117.3, 72.7, 72.4, 70.8, 70.7, 70.5, 69.5, 61.8. The reaction was then carefully quenched with a Na2SO4-saturated aqueous solution The resulting white aluminum salts were then filtered off over a short plug of Celite (EtOAc washings) the filtrate was finally evaporated under reduced pressure

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

実験手順: To a stirred solution of alcohol (15) (3.83 g, 20.1 mmol, 1.0 equiv.) and pyridine (0.16 mL, 2.00 mmol, 0.1 equiv.) in Et2O (20 mL) was added dropwise phosphorus tribromide (0.74 mL, 7.60 mmol, 0.36 equiv.) at 0° C. After 30 min, the reaction was allowed to warm to room temperature. As the reaction was not completed after 12 h, pyridine (1.60 mL, 20.0 mmol, 1.0 equiv.) and sodium bromide (4.14 g, 40.2 mmol, 2.0 equiv.) were successively added. After 12 h of reflux, the resulting solution was submitted to a EtOAc/NH4Cl-saturated aqueous solution extraction. The combined organic phases were dried over anhydrous Na2SO4, filtered then evaporated under reduced pressure. Purification was achieved by column chromatography (Hexanes/EtOAc gradient) to afford bromide (16) (0.90 g, 18%) as a yellow oil; 1H NMR (300 MHz, CDCl3) δ 5.93 (ddt, J=17.3, 10.5, 5.7 Hz, 1H), 5.28 (dq, J=17.3, 1.5 Hz, 1H), 5.19 (dq, J=10.5, 1.5 Hz, 1H), 4.03 (dt, J=5.7, 1.5 Hz, 2H), 3.82 (t, J=6.3 Hz, 2H), 3.71-3.65 (m, 6H), 3.64-3.59 (m, 2H), 3.48 (t, J=6.3 Hz, 2H); 13C NMR (75 MHz, CDCl3) δ 134.9, 117.4, 72.5, 71.4, 70.9, 70.8, 70.7, 69.6, 30.5. As the reaction was not completed after 12 h After 12 h of reflux the resulting solution was submitted to a EtOAc/NH4Cl-saturated aqueous solution extraction The combined organic phases were dried over anhydrous Na2SO4 filtered then evaporated under reduced pressure Purification

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

実験手順: To a stirred solution of ester (14) (4.60 g, 21.1 mmol, 1.0 equiv.) in THF (60 mL) was carefully added one portion of LAH (0.50 g, 12.5 mmol, 0.5 equiv.) at 0° C. After 30 min, another portion of LAH was carefully added and the reaction was stirred for an additional 30 min. The reaction was then carefully quenched with a Na2SO4-saturated aqueous solution. The resulting white aluminum salts were then filtered off over a short plug of Celite (EtOAc washings) and the filtrate was finally evaporated under reduced pressure to afford pure alcohol (15) (no purification required) as a pale yellow oil (3.89 g, 97%). Spectroscopic data were consistent with those reported in the literature:26a 1H NMR (400 MHz, CDCl3) δ 5.93 (ddt, J=17.2, 10.3, 5.7 Hz, 1H), 5.28 (dq, J=17.2, 1.5 Hz, 1H), 5.19 (dq, J=10.3, 1.5 Hz, 1H), 4.04 (dt, J=5.7, 1.5 Hz, 2H), 3.78-3.58 (m, 12H); 13C NMR (75 MHz, CDCl3) δ 134.8, 117.3, 72.7, 72.4, 70.8, 70.7, 70.5, 69.5, 61.8. The reaction was then carefully quenched with a Na2SO4-saturated aqueous solution The resulting white aluminum salts were then filtered off over a short plug of Celite (EtOAc washings) the filtrate was finally evaporated under reduced pressure