methyl 2-(2-bromoethoxy)acetate

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

実験手順: To a mixture of 4-nitrophenol (5 g, 36 mmol), anhydrous K2CO3 (20 g, 145 mmol) and sodium iodide (2 g, 13.3 mmol) in anhydrous acetone (100 ml) was added (2-bromoethoxy)acetic acid methyl ester (11 g, 56 mmol) and then refluxed for 24 hours. Acetone was distilled off and water (100 ml) was added. Crude 42 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant to give pure 42 (4 g, 43.6%) as a white fluffy powder with an m.p. between 96-97.8° C. refluxed for 24 hours Acetone was distilled off water (100 ml) was added Crude 42 was filtered dried purified by column chromatography on silica gel

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

実験手順: To a mixture of 4-nitrophenol (5 g, 36 mmol), anhydrous K2CO3 (20 g, 145 mmol) and sodium iodide (2 grams, 13.3 mmol) in anhydrous acetone (100 ml) was added (2-bromoethoxy)acetic acid methyl ester (11 g, 56 mmol) and refluxed for 24 hours. Acetone was distilled off and water (100 ml) was added. Crude 59 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant to give pure 59 (4 g, 43.6%) as a white fluffy powder. M.p: 96-97.8° C. refluxed for 24 hours Acetone was distilled off water (100 ml) was added Crude 59 was filtered dried purified by column chromatography on silica gel

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

実験手順: To a mixture of 4-nitrophenol (5 g, 36 mmol), anhydrous K2CO3 (20 g, 145 mmol) and sodium iodide (2 grams, 13.3 mmol) in anhydrous acetone (100 ml) was added (2-bromoethoxy)acetic acid methyl ester (11 g, 56 mmol) and refluxed for 24 hours. Acetone was distilled off and water (100 ml) was added. Crude 59 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant to give pure 59 (4 g, 43.6%) as a white fluffy powder. M.p: 96-97.8° C. refluxed for 24 hours Acetone was distilled off water (100 ml) was added Crude 59 was filtered dried purified by column chromatography on silica gel

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

実験手順: To a mixture of 4-nitrophenol (5 g, 36 mmol), anhydrous K2CO3 (20 g, 145 mmol) and sodium iodide (2 grams, 13.3 mmol) in anhydrous acetone (100 ml) was added (2-bromoethoxy) acetic acid methyl ester (11 g, 56 mmol) and refluxed for 24 hours. Acetone was distilled off and water (100 ml) was added. Crude 22 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant to give pure 22 (4 g, 43.6%) as a white fluffy powder. The melting point was found to be 96-97.8° C. The structure was confirmed with IR and NMR. refluxed for 24 hours Acetone was distilled off water (100 ml) was added Crude 22 was filtered dried purified by column chromatography on silica gel

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

実験手順: To a mixture of 4-nitrophenol (5 g, 36 mmol), anhydrous K2CO3 (20 g, 145 mmol) and sodium iodide (2 g, 13.3 mmol) in anhydrous acetone (100 ml) was added (2-bromoethoxy)acetic acid methyl ester (11 g, 56 mmol) and then refluxed for 24 hours. Acetone was distilled off and water (100 ml) was added. Crude 42 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant to give pure 42 (4 g, 43.6%) as a white fluffy powder with an m.p. between 96-97.8° C. refluxed for 24 hours Acetone was distilled off water (100 ml) was added Crude 42 was filtered dried purified by column chromatography on silica gel

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

実験手順: To a mixture of 4-nitrophenol (5 g, 36 mmol), anhydrous K2CO3 (20 g, 145 mmol) and sodium iodide (2 g, 13.3 mmol) in anhydrous acetone (100 ml) was added (2-bromoethoxy)acetic acid methyl ester (11 g, 56 mmol) and then refluxed for 24 hours. Acetone was distilled off and water (100 ml) was added. Crude 42 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant to give pure 42 (4 g, 43.6%) as a white fluffy powder with an m.p. between 96-97.8° C. refluxed for 24 hours Acetone was distilled off water (100 ml) was added Crude 42 was filtered dried purified by column chromatography on silica gel

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

実験手順: To a mixture of 4-Nitrophenol (5 grams, 36 mmol), anhydrous K2CO3 (20 grams, 145 mmol) and sodium iodide (2 grams, 13.3 mmol) in anhydrous acetone (100 mL) was added (2-Bromoethoxy)acetic acid methyl ester (11 grams, 56 mmol) and refluxed for 24 hours. Acetone was distilled and water (100 mL) was added. Crude 74 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant give pure 74 (4 grams, 43.6%) as a white fluffy powder. The melting point was found to be 96-97.8° C. The structure was confirmed with IR and NMR. IHNMR (CDCl3+DMSO) δ 3.72 (s, 3H,ester), 3.94(t, 2H,OCH2), 4.18(s, 2H,OCH2), 4.30(t, 2H,OCH2), 7.08(d, 2H,Ar), 8.18(d,2H,Ar). refluxed for 24 hours Acetone was distilled water (100 mL) was added Crude 74 was filtered dried purified by column chromatography on silica gel

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

実験手順: To a mixture of 4-Nitrophenol (5 grams, 36 mmol), anhydrous K2CO3 (20 grams, 145 mmol) and sodium iodide (2 grams, 13.3 mmol) in anhydrous acetone (100 mL) was added (2-Bromoethoxy)acetic acid methyl ester (11 grams, 56 mmol) and refluxed for 24 hours. Acetone was distilled and water (100 mL) was added. Crude 74 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant give pure 74 (4 grams, 43.6%) as a white fluffy powder. The melting point was found to be 96-97.8° C. The structure was confirmed with IR and NMR. IHNMR (CDCl3+DMSO) δ 3.72 (s, 3H,ester), 3.94(t, 2H,OCH2), 4.18(s, 2H,OCH2), 4.30(t, 2H,OCH2), 7.08(d, 2H,Ar), 8.18(d,2H,Ar). refluxed for 24 hours Acetone was distilled water (100 mL) was added Crude 74 was filtered dried purified by column chromatography on silica gel

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

実験手順: To a mixture of 4-nitrophenol (5 g, 36 mmol), anhydrous K2CO3 (20 g, 145 mmol) and sodium iodide (2 grams, 13.3 mmol) in anhydrous acetone (100 ml) was added (2-bromoethoxy)acetic acid methyl ester (11 g, 56 mmol) and refluxed for 24 hours. Acetone was distilled off and water (100 ml) was added. Crude 59 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant to give pure 59 (4 g, 43.6%) as a white fluffy powder. M.p: 96-97.8° C. refluxed for 24 hours Acetone was distilled off water (100 ml) was added Crude 59 was filtered dried purified by column chromatography on silica gel

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

実験手順: To a mixture of 4-nitrophenol (5 g, 36 mmol), anhydrous K2CO3 (20 g, 145 mmol) and sodium iodide (2 grams, 13.3 mmol) in anhydrous acetone (100 ml) was added (2-bromoethoxy) acetic acid methyl ester (11 g, 56 mmol) and refluxed for 24 hours. Acetone was distilled off and water (100 ml) was added. Crude 22 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant to give pure 22 (4 g, 43.6%) as a white fluffy powder. The melting point was found to be 96-97.8° C. The structure was confirmed with IR and NMR. refluxed for 24 hours Acetone was distilled off water (100 ml) was added Crude 22 was filtered dried purified by column chromatography on silica gel

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

実験手順: To a mixture of 4-nitrophenol (5 g, 36 mmol), anhydrous K2CO3 (20 g, 145 mmol) and sodium iodide (2 grams, 13.3 mmol) in anhydrous acetone (100 ml) was added (2-bromoethoxy)acetic acid methyl ester (11 g, 56 mmol) and refluxed for 24 hours. Acetone was distilled off and water (100 ml) was added. Crude 59 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant to give pure 59 (4 g, 43.6%) as a white fluffy powder. M.p: 96-97.8° C. refluxed for 24 hours Acetone was distilled off water (100 ml) was added Crude 59 was filtered dried purified by column chromatography on silica gel

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

実験手順: To a mixture of 4-nitrophenol (5 g, 36 mmol), anhydrous K2CO3 (20 g, 145 mmol) and sodium iodide (2 grams, 13.3 mmol) in anhydrous acetone (100 ml) was added (2-bromoethoxy) acetic acid methyl ester (11 g, 56 mmol) and refluxed for 24 hours. Acetone was distilled off and water (100 ml) was added. Crude 22 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant to give pure 22 (4 g, 43.6%) as a white fluffy powder. The melting point was found to be 96-97.8° C. The structure was confirmed with IR and NMR. refluxed for 24 hours Acetone was distilled off water (100 ml) was added Crude 22 was filtered dried purified by column chromatography on silica gel