2-propan-2-yloxyphenol

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2-isopropoxyphenol (1.38 g, 0.01 mole) and ethyl N-methylcarbamate (1.03 g, 0.01 mole) in toluene (10 ml), was added phosphoryl chloride (1.54 g, 0.01 mole) and refluxed for six hours. The reaction mixture was worked up as described earlier to give 2-isopropylphenyl N-methylcarbamate of the formula (VII) as a solid, crystallised from pet. ether, m.p. 88° C. to 93° C. refluxed for six hours

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2-isopropoxyphenol (1.52 g, 0.01 mole) and ethyl N-methylcarbamate (1.03 g, 0.01 mole) in dichloroethane (10 ml, was added phosphoryl chloride (1.54 g, 0.01 mole) and refluxed for six hours. The reaction mixture was worked up as described earlier to give 2-isopropoxyphenyl N-methylcarbamate of the formula (VI) as a solid, crystallised from pet. ether, m.p. 89° C. to 90° C. refluxed for six hours

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2-isopropoxyphenol (1.52 g, 0.01 mole) and ethyl N-methylcarbamate (1.03 g, 0.01 mole) in dichloroethane (10 ml, was added phosphoryl chloride (1.54 g, 0.01 mole) and refluxed for six hours. The reaction mixture was worked up as described earlier to give 2-isopropoxyphenyl N-methylcarbamate of the formula (VI) as a solid, crystallised from pet. ether, m.p. 89° C. to 90° C. refluxed for six hours

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2-[3-(2-Isopropoxy-phenoxy)-propyl]-isoindole-1,3-dione. To a solution of 2-isopropoxy-phenol (0.50 g, 3.3 mmol) in DMF (5 mL) was added K2CO3 (2.3 g, 17 mmol), and the resulting suspension was stirred at 25° C. for 15 min. A solution of 2-(3-bromo-propyl)-isoindole-1,3-dione (0.97 g, 3.6 mmol) in DMF (2 mL) was added, and the reaction mixture was heated to 80° C. for 18 h. The mixture was filtered, and the filtrate was diluted with 1:1 Et2O/EtOAc (100 mL), washed with H2O (2×20 mL) then brine (20 mL), dried (MgSO4), filtered, and concentrated under reduced pressure. The crude residue was purified by column chromatography (5-20% EtOAc/hexanes) to provide the desired product (0.956 g, 87%). 1H NMR (400 MHz, CDCl3): 7.87-7.82 (m, 2H), 7.73-7.69 (m, 2H), 6.93-6.86 (m, 4H), 4.46 (hept, J=6.1 Hz, 1H), 4.06 (t, J=6.2 Hz, 2H), 3.92 (t, J=7.1 Hz, 2H), 2.20 (quint, J=6.4 Hz, 2H), 1.33 (d, J=6.1 Hz, 6H). the reaction mixture was heated to 80° C. for 18 h The mixture was filtered the filtrate was diluted with 1:1 Et2O/EtOAc (100 mL) washed with H2O (2×20 mL) brine (20 mL), dried (MgSO4) filtered concentrated under reduced pressure The crude residue was purified by column chromatography (5-20% EtOAc/hexanes)

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2-[3-(2-Isopropoxy-phenoxy)-propyl]-isoindole-1,3-dione. To a solution of 2-isopropoxy-phenol (0.50 g, 3.3 mmol) in DMF (5 mL) was added K2CO3 (2.3 g, 17 mmol), and the resulting suspension was stirred at 25° C. for 15 min. A solution of 2-(3-bromo-propyl)-isoindole-1,3-dione (0.97 g, 3.6 mmol) in DMF (2 mL) was added, and the reaction mixture was heated to 80° C. for 18 h. The mixture was filtered, and the filtrate was diluted with 1:1 Et2O/EtOAc (100 mL), washed with H2O (2×20 mL) then brine (20 mL), dried (MgSO4), filtered, and concentrated under reduced pressure. The crude residue was purified by column chromatography (5-20% EtOAc/hexanes) to provide the desired product (0.956 g, 87%). 1H NMR (400 MHz, CDCl3): 7.87-7.82 (m, 2H), 7.73-7.69 (m, 2H), 6.93-6.86 (m, 4H), 4.46 (hept, J=6.1 Hz, 1H), 4.06 (t, J=6.2 Hz, 2H), 3.92 (t, J=7.1 Hz, 2H), 2.20 (quint, J=6.4 Hz, 2H), 1.33 (d, J=6.1 Hz, 6H). the reaction mixture was heated to 80° C. for 18 h The mixture was filtered the filtrate was diluted with 1:1 Et2O/EtOAc (100 mL) washed with H2O (2×20 mL) brine (20 mL), dried (MgSO4) filtered concentrated under reduced pressure The crude residue was purified by column chromatography (5-20% EtOAc/hexanes)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2-(2-Isopropoxyphenoxy)-1-nitrobenzene (0.90 g, 69%) was prepared from 2-iso-propoxyphenol (0.84 g, 5.5 mmol) and 1-fluoro-2-nitrobenzene (0.71 g, 5.0 mmol) following the general procedure A. This was reduced to 2-(2-methoxyphenoxy)aniline (0.65 g, 81%) following general procedure B. N-[2-(2-Isopropoxyphenoxy)phenyl]-N′-(thiazol-2-yl)urea (120 mg, 65%) was prepared from 2-(2-isopropoxyphenoxy)aniline (122 mg, 0.5 mmol) and 2-aminothiazole (60 mg, 0.6 mmol) following the general procedure D.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2-(2-Isopropoxyphenoxy)-1-nitrobenzene (0.90 g, 69%) was prepared from 2-iso-propoxyphenol (0.84 g, 5.5 mmol) and 1-fluoro-2-nitrobenzene (0.71 g, 5.0 mmol) following the general procedure A. This was reduced to 2-(2-methoxyphenoxy)aniline (0.65 g, 81%) following general procedure B. N-[2-(2-Isopropoxyphenoxy)phenyl]-N′-(thiazol-2-yl)urea (120 mg, 65%) was prepared from 2-(2-isopropoxyphenoxy)aniline (122 mg, 0.5 mmol) and 2-aminothiazole (60 mg, 0.6 mmol) following the general procedure D.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2-(2-Isopropoxyphenoxy)-1-nitrobenzene (0.90 g, 69%) was prepared from 2-iso-propoxyphenol (0.84 g, 5.5 mmol) and 1-fluoro-2-nitrobenzene (0.71 g, 5.0 mmol) following the general procedure A. This was reduced to 2-(2-methoxyphenoxy)aniline (0.65 g, 81%) following general procedure B. N-[2-(2-Isopropoxyphenoxy)phenyl]-N′-(thiazol-2-yl)urea (120 mg, 65%) was prepared from 2-(2-isopropoxyphenoxy)aniline (122 mg, 0.5 mmol) and 2-aminothiazole (60 mg, 0.6 mmol) following the general procedure D.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2-(2-Isopropoxyphenoxy)-1-nitrobenzene (0.90 g, 69%) was prepared from 2-isopropoxyphenol (0.84 g, 5.5 mmol) and 1-fluoro-2-nitrobenzene (0.71 g, 5.0 mmol) following the general procedure A. This was reduced to 2-(2-methoxyphenoxy)aniline (0.65 g, 81%) following general procedure B. N-[2-(2-Isopropoxyphenoxy)phenyl]-N′-(thiazol-2-yl)urea (120 mg, 65%) was prepared from 2-(2-isopropoxyphenoxy)aniline (122 mg, 0.5 mmol) and 2-aminothiazole (60 mg, 0.6 mmol) following the general procedure D.

Conditions: temp:23.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Potassium t-butoxide (7.36 g, 0.066 mol) was added to a stirred solution of 2-isopropoxy-phenol (5.00 g, 0.033 mol) in tetrahydrofuran (35 mL) at 23° C. under nitrogen and the reaction mixture was heated to reflux for 0.75 h. The reaction mixture was cooled to 23° C. and a solution of 3-chloro-but-2-enoic acid ethyl ester (prepared as in Example 191, 4.86 g, 0.033 mol) in tetrahydrofuran (40 mL) was added to the reaction mixture. The reaction mixture was refluxed for an additional 3 h. After this time, the mixture was concentrated in vacuo and the residue was diluted with water and extracted with diethyl ether. The organic layer was then washed with 5% aqueous sodium hydroxide solution followed by a saturated aqueous sodium chloride solution, dried over sodium sulfate and concentrated in vacuo to afford (E)-3-(2-isopropoxy-phenoxy)-but-2-enoic acid ethyl ester (5.60 g, 65%) as a yellow oil. the reaction mixture was heated to reflux for 0.75 h The reaction mixture was refluxed for an additional 3 h After this time, the mixture was concentrated in vacuo the residue was diluted with water extracted with diethyl ether The organic layer was then washed with 5% aqueous sodium hydroxide solution dried over sodium sulfate concentrated in vacuo

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2-(2-Isopropoxyphenoxy)-1-nitrobenzene (0.90 g, 69%) was prepared from 2-isopropoxyphenol (0.84 g, 5.5 mmol) and 1-fluoro-2-nitrobenzene (0.71 g, 5.0 mmol) following the general procedure A. This was reduced to 2-(2-methoxyphenoxy)aniline (0.65 g, 81%) following general procedure B. N-[2-(2-Isopropoxyphenoxy)phenyl]-N′-(thiazol-2-yl)urea (120 mg, 65%) was prepared from 2-(2-isopropoxyphenoxy)aniline (122 mg, 0.5 mmol) and 2-aminothiazole (60 mg, 0.6 mmol) following the general procedure D.