2-decyloxirane

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

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

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

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

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

Procedure: Using the method of Example 5, supra, 1,2-epoxydodecane (240 μL, 1.0 mmol) and 1,1-dimethyl-2-(4-methoxyphenyl)ethylamine (197 mg, 1.1 mmol) were used to prepare 68 mg of the title compound as a clear, colorless oil: GC/EI-MS, m/z (rel. int.) 363 (M+1, 0.2), 348 (2), 242 (100), 224 (8), 163 (7), 121 (20); 1H-NMR (CDCl3) δ 7.08 (2H, d, J=8.4), 6.83 (2H, d, J=8.4), 3.79 (3H, s), 3.50 (1H, m), 2.78 (1H, dd, J=11.8 and 3.1), 2.66 (2H, s), 2.41 (1H, dd, J=11.5 and 9.3), 1.26 (18 H, m), 1.07 (6H, s), 0.88 (3H, t, J=6.5); 13C-NMR (CDCl3) δ 158.2, 131.4, 129.9, 113.4, 76.9, 70.0, 55.2, 53.6, 47.8, 46.6, 35.1, 31.9, 29.7, 29.6, 29.3, 26.7, 26.5, 25.7, 22.7, 14.1; FT-IR (film) cm-1 3386, 1612, 1512, 1246, 1039, 824.

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

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 1,2-epoxydodecane (1.84 g, 10.0 mmol) in anhydrous acetonitrile (5 mL) is added anhydrous magnesium perchlorate (2.23 g, 10.0 mmol). After 15 minutes, benzylamine (1.1 mL, 10.0 mmol) is added dropwise and the solution is stirred for 50 hours at room temperature. The mixture is concentrated, diluted with water, and extracted twice with ethyl acetate. The combined organic extracts are washed with water, brine, dried over magnesium sulfate, and concentrated to afford 2.9 g of the title compound as a white solid; 1H NMR (200 MHz, CDCl3)δ7.38-7.25 (m, 5 H), 3.87 (d, J=2 Hz, 2 H), 3.80-3.65 (m, 1 H), 3.00-2.75 (m, 3 H), 2.60-2.45 (m, 1 H), 1.40-1.20 (m, 18 H), 0.88 (t, J=7 Hz, 3 H). The mixture is concentrated diluted with water extracted twice with ethyl acetate The combined organic extracts are washed with water, brine dried over magnesium sulfate concentrated

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

Procedure: To a solution of 1,2-epoxydodecane (1.84 g, 10.0 mmol) in anhydrous acetonitrile (5 mL) is added anhydrous magnesium perchlorate (2.23 g, 10.0 mmol). After 15 minutes, benzylamine (1.1 mL, 10.0 mmol) is added dropwise and the solution is stirred for 50 hours at room temperature. The mixture is concentrated, diluted with water, and extracted twice with ethyl acetate. The combined organic extracts are washed with water, brine, dried over magnesium sulfate, and concentrated to afford 2.9 g of the title compound as a white solid; 1H NMR (200 MHz, CDCl3)δ7.38-7.25 (m, 5 H), 3.87 (d, J=2 Hz, 2 H), 3.80-3.65 (m, 1 H), 3.00-2.75 (m, 3 H), 2.60-2.45 (m, 1 H), 1.40-1.20 (m, 18 H), 0.88 (t, J=7 Hz, 3 H). The mixture is concentrated diluted with water extracted twice with ethyl acetate The combined organic extracts are washed with water, brine dried over magnesium sulfate concentrated

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

Procedure: 27.01 g of sodium methoxide and 82.6 g of (S)-3-amino-3-phenylpropionic acid were dissolved in 800 ml of methanol. After adding 92 g of 1,2-epoxydodecane, the solution was stirred at room temperature for 20 h. Subsequently, the pH of the solution was adjusted to pH 6 with methanolic hydrochloric acid and the sodium chloride which crystallized out filtered off. After the methanol was distilled off, an oily residue remained, which crystallized in the course of stirring with 700 ml of acetone. This resulted in 153.4 g of colorless crystals. 1H NMR (DMSO) δ (ppm): 0.85 (t, 3H), 1.13-1.31 (m, 18H), 2.28/2.60/2.70/2.86 (m, 2H), 3.02 (m, 1H), 3.34 (m, 1H), 3.66-3.78 (m, 1H), 4.57 (m, 1H), 5.20/5.29 (s, br., 1H, OH), 7.42 (m, 3H), 7.60 (m, 2H), 9.40 (s, br., 2H, NH2+), 12.56 (s, 1H, CO2H) the sodium chloride which crystallized out filtered off After the methanol was distilled off which crystallized in the course of stirring with 700 ml of acetone

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

Procedure: 4.6 g of 1,2-epoxydodecane, 12.2 g of potassium cyanate, 25 ml of DMF, 0.2 g of tetraethylammonium bromide and 1.8 ml of water were stirred and heated at 120°-130° C. for 5 hours. The disappearance of the epoxide was followed by thin layer chromatography (tlc). The cooled reaction mixtre was poured into 200 ml of water and this was extracted with ethyl acetate. The combined organic extracts were washed with water, followed by brine, dried and concentrated to give a solid. Recrystallization from methylene chloride/hexane gave 3.7 g (65.2%) of product, m.p. 86°-87° C. heated at 120°-130° C. for 5 hours The cooled reaction mixtre this was extracted with ethyl acetate The combined organic extracts were washed with water dried concentrated to give a solid Recrystallization from methylene chloride/hexane

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

Procedure: Using the method of Example 5, supra, 1,2-epoxydodecane (240 μL, 1.0 mmol) and 1,1-dimethyl-2-(4-methoxyphenyl)-ethylamine (197 mg, 1.1 mmol) were used to prepare 68 mg of the title compound as a clear, colorless oil: GC/EI-MS, m/z (rel. int.) 363 (M+1, 0.2), 348 (2), 242 (100), 224 (8), 163 (7), 121 (20); 1H-NMR (CDCl3) δ 7.08 (2H, d, J=8.4), 6.83 (2H, d, J=8.4), 3.79 (3H, s), 3.50 (1H, m), 2.78 (1H, dd, J=11.8 and 3.1), 2.66 (2H, s), 2.41 (1H, dd, J=11.5 and 9.3), 1.26 (18 H, m), 1.07 (6H, s), 0.88 (3H, t, J=6.5); 13C-NMR (CDCl3) 5 158.2, 131.4, 129.9, 113.4, 76.9, 70.0, 55.2, 53.6, 47.8, 46.6, 35.1, 31.9, 29.7, 29.6, 29.3, 26.7, 26.5, 25.7, 22.7, 14.1; FT-IR (film) cm−1 3386, 1612, 1512, 1246, 1039, 824.