methyl 3-hydroxy-2-propylbenzoate

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of methyl 3-hydroxy-2-propyl-benzoate (40.0 g, 206 mmol) and 1-benzyloxy-5-(3-chloropropoxy)-4-ethyl-2-(4-fluorophenyl)benzene (prepared according to Org. Process Res. Dev. (2009), 13: 268-275) (82.15 g, 206 mmol) in dimethylsulfoxide (240 mL) add potassium carbonate (30.2 g, 219 mmol) and N,N-dimethylpyridin-4-amine (2.0 g, 16 mmol) in succession. Stir the suspension for 87 h at 60° C. and then allow it to cool. Dilute the mixture with water (600 mL) and with methyl-tert-butylether (100 mL) and stir for 15 min. Separate the phases and wash the aqueous portion with methyl-tert-butylether (3×30 mL). Wash the combined organic extracts with water and brine. Concentrate the organic portion in vacuo to yield the title compound (123.0 g, quantitative) as a brown oil. ES/MS m/z 557 (M+1). to cool Separate the phases wash the aqueous portion with methyl-tert-butylether (3×30 mL) Wash the combined organic extracts with water and brine Concentrate the organic portion in vacuo

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of methyl 3-hydroxy-2-propyl-benzoate (40.0 g, 206 mmol) and 1-benzyloxy-5-(3-chloropropoxy)-4-ethyl-2-(4-fluorophenyl)benzene (prepared according to Org. Process Res. Dev. (2009), 13: 268-275) (82.15 g, 206 mmol) in dimethylsulfoxide (240 mL) add potassium carbonate (30.2 g, 219 mmol) and N,N-dimethylpyridin-4-amine (2.0 g, 16 mmol) in succession. Stir the suspension for 87 h at 60° C. and then allow it to cool. Dilute the mixture with water (600 mL) and with methyl-tert-butylether (100 mL) and stir for 15 min. Separate the phases and wash the aqueous portion with methyl-tert-butylether (3×30 mL). Wash the combined organic extracts with water and brine. Concentrate the organic portion in vacuo to yield the title compound (123.0 g, quantitative) as a brown oil. ES/MS m/z 557 (M+1). to cool Separate the phases wash the aqueous portion with methyl-tert-butylether (3×30 mL) Wash the combined organic extracts with water and brine Concentrate the organic portion in vacuo

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

実験手順: Cool a solution of 3-hydroxy-2-propyl-benzoic acid (59.79 g, 332 mmol) in MeOH (598 mL) to −10° C. and add thionyl chloride (36.26 mL, 497.1 mmol) using a syringe pump over 35 min. Allow the mixture to warm to ambient temperature while stirring over 35 h. Concentrate the mixture in vacuo and dilute the residue with methyl-tert-butylether (360 mL). Concentrate the resultant mixture in vacuo to dryness to yield the title compound (64.4 g, 87%) as a tan solid. 1H NMR (300 MHz, CDCl3) δ 7.38 (dd, J=8.0, 0.8 Hz, 1H); 7.10 (t, J=8.0 Hz, 1H); 6.93 (dd, J=8.0, 0.8 Hz, 1H); 5.1 (bs, 1 H); 3.89 (s, 3H); 2.98 (m, 2H), 1.61 (m, 2H); 1.00 (t, J=7.4 Hz, 3H). over 35 min Concentrate the mixture in vacuo dilute the residue with methyl-tert-butylether (360 mL) Concentrate the resultant mixture in vacuo to dryness

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of methyl 3-hydroxy-2-propyl-benzoate (40.0 g, 206 mmol) and 1-benzyloxy-5-(3-chloropropoxy)-4-ethyl-2-(4-fluorophenyl)benzene (prepared according to Org. Process Res. Dev. (2009), 13: 268-275) (82.15 g, 206 mmol) in dimethylsulfoxide (240 mL) add potassium carbonate (30.2 g, 219 mmol) and N,N-dimethylpyridin-4-amine (2.0 g, 16 mmol) in succession. Stir the suspension for 87 h at 60° C. and then allow it to cool. Dilute the mixture with water (600 mL) and with methyl-tert-butylether (100 mL) and stir for 15 min. Separate the phases and wash the aqueous portion with methyl-tert-butylether (3×30 mL). Wash the combined organic extracts with water and brine. Concentrate the organic portion in vacuo to yield the title compound (123.0 g, quantitative) as a brown oil. ES/MS m/z 557 (M+1). to cool Separate the phases wash the aqueous portion with methyl-tert-butylether (3×30 mL) Wash the combined organic extracts with water and brine Concentrate the organic portion in vacuo

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

実験手順: Cool a solution of 3-hydroxy-2-propyl-benzoic acid (59.79 g, 332 mmol) in MeOH (598 mL) to −10° C. and add thionyl chloride (36.26 mL, 497.1 mmol) using a syringe pump over 35 min. Allow the mixture to warm to ambient temperature while stirring over 35 h. Concentrate the mixture in vacuo and dilute the residue with methyl-tert-butylether (360 mL). Concentrate the resultant mixture in vacuo to dryness to yield the title compound (64.4 g, 87%) as a tan solid. 1H NMR (300 MHz, CDCl3) δ 7.38 (dd, J=8.0, 0.8 Hz, 1H); 7.10 (t, J=8.0 Hz, 1H); 6.93 (dd, J=8.0, 0.8 Hz, 1H); 5.1 (bs, 1 H); 3.89 (s, 3H); 2.98 (m, 2H), 1.61 (m, 2H); 1.00 (t, J=7.4 Hz, 3H). over 35 min Concentrate the mixture in vacuo dilute the residue with methyl-tert-butylether (360 mL) Concentrate the resultant mixture in vacuo to dryness