(3S)-3-isocyanato-2,2-dimethylbutane

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

Procedure: A mixture of 1-chloro-3-(4-fluorophenyl)hex-5-en-3-ol (500 mg, 2.19 mmol), (S)-3-isocyanato-2,2-dimethyl-butane (845 mg, 5.58 mmol), and DBU (681 mg, 5.9 mmol) in THF (10 mL) was heated to reflux for 25 h. The mixture was diluted with EtOAc and washed with 1 N aq HCl. The aqueous phase was extracted with EtOAc (3×). The combined organic phase was dried over Na2SO4. After the solvents were evaporated, the crude product was purified by column to give 6-allyl-3-((2S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-1,3-oxazinan-2-one (80 mg, crude). was heated to reflux for 25 h washed with 1 N aq HCl The aqueous phase was extracted with EtOAc (3×) The combined organic phase was dried over Na2SO4 After the solvents were evaporated the crude product was purified by column

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

Procedure: To a solution of (S)-1,2,2-trimethylpropylamine (626 mg, 6.2 mmol) in methylene chloride (20 mL) and satd aq NaHCO3 (20 mL) was added triphosgene (607 mg, 2.05 mmol) at 0° C. The mixture was stirred for 15 min. The organic phase was separated, dried and concentrated to give (S)-3-isocyanato-2,2-dimethyl-butane (845 mg, 90%). 1H NMR (CDCl3): 0.90 (s, 9H), 1.21 (m, 3H), 3.31 (m, 1H). The organic phase was separated dried concentrated

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

Procedure: A mixture of 1-chloro-3-(4-fluorophenyl)hex-5-en-3-ol (500 mg, 2.19 mmol), (S)-3-isocyanato-2,2-dimethyl-butane (845 mg, 5.58 mmol), and DBU (681 mg, 5.9 mmol) in THF (10 mL) was heated to reflux for 25 h. The mixture was diluted with EtOAc and washed with 1 N aq HCl. The aqueous phase was extracted with EtOAc (3×). The combined organic phase was dried over Na2SO4. After the solvents were evaporated, the crude product was purified by column to give 6-allyl-3-((2S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-1,3-oxazinan-2-one (80 mg, crude). was heated to reflux for 25 h washed with 1 N aq HCl The aqueous phase was extracted with EtOAc (3×) The combined organic phase was dried over Na2SO4 After the solvents were evaporated the crude product was purified by column

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

Procedure: A mixture of 1-chloro-3-(4-fluorophenyl)hex-5-en-3-ol (500 mg, 2.19 mmol), (S)-3-isocyanato-2,2-dimethyl-butane (845 mg, 5.58 mmol), and DBU (681 mg, 5.9 mmol) in THF (10 mL) was heated to reflux for 25 h. The mixture was diluted with EtOAc and washed with 1 N aq HCl. The aqueous phase was extracted with EtOAc (3×). The combined organic phase was dried over Na2SO4. After the solvents were evaporated, the crude product was purified by column to give 6-allyl-3-((2S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-1,3-oxazinan-2-one (80 mg, crude). was heated to reflux for 25 h washed with 1 N aq HCl The aqueous phase was extracted with EtOAc (3×) The combined organic phase was dried over Na2SO4 After the solvents were evaporated the crude product was purified by column

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

Procedure: To a solution of (S)-1,2,2-trimethylpropylamine (626 mg, 6.2 mmol) in methylene chloride (20 mL) and satd aq NaHCO3 (20 mL) was added triphosgene (607 mg, 2.05 mmol) at 0° C. The mixture was stirred for 15 min. The organic phase was separated, dried and concentrated to give (S)-3-isocyanato-2,2-dimethyl-butane (845 mg, 90%). 1H NMR (CDCl3): 0.90 (s, 9H), 1.21 (m, 3H), 3.31 (m, 1H). The organic phase was separated dried concentrated

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

Procedure: To a solution of (S)-1,2,2-trimethylpropylamine (626 mg, 6.2 mmol) in methylene chloride (20 mL) and satd aq NaHCO3 (20 mL) was added triphosgene (607 mg, 2.05 mmol) at 0° C. The mixture was stirred for 15 min. The organic phase was separated, dried and concentrated to give (S)-3-isocyanato-2,2-dimethyl-butane (845 mg, 90%). 1H NMR (CDCl3): 0.90 (s, 9H), 1.21 (m, 3H), 3.31 (m, 1H). The organic phase was separated dried concentrated

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

Procedure: A mixture of 1-chloro-3-(4-fluorophenyl)hex-5-en-3-ol (500 mg, 2.19 mmol), (S)-3-isocyanato-2,2-dimethyl-butane (845 mg, 5.58 mmol), and DBU (681 mg, 5.9 mmol) in THF (10 mL) was heated to reflux for 25 h. The mixture was diluted with EtOAc and washed with 1 N aq HCl. The aqueous phase was extracted with EtOAc (3×). The combined organic phase was dried over Na2SO4. After the solvents were evaporated, the crude product was purified by column to give 6-allyl-3-((2S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-1,3-oxazinan-2-one (80 mg, crude). was heated to reflux for 25 h washed with 1 N aq HCl The aqueous phase was extracted with EtOAc (3×) The combined organic phase was dried over Na2SO4 After the solvents were evaporated the crude product was purified by column

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

Procedure: To a solution of (S)-1,2,2-trimethylpropylamine (626 mg, 6.2 mmol) in methylene chloride (20 mL) and satd aq NaHCO3 (20 mL) was added triphosgene (607 mg, 2.05 mmol) at 0° C. The mixture was stirred for 15 min. The organic phase was separated, dried and concentrated to give (S)-3-isocyanato-2,2-dimethyl-butane (845 mg, 90%). 1H NMR (CDCl3): 0.90 (s, 9H), 1.21 (m, 3H), 3.31 (m, 1H). The organic phase was separated dried concentrated

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

Procedure: A mixture of 1-chloro-3-(4-fluorophenyl)hex-5-en-3-ol (500 mg, 2.19 mmol), (S)-3-isocyanato-2,2-dimethyl-butane (845 mg, 5.58 mmol), and DBU (681 mg, 5.9 mmol) in THF (10 mL) was heated to reflux for 25 h. The mixture was diluted with EtOAc and washed with 1 N aq HCl. The aqueous phase was extracted with EtOAc (3×). The combined organic phase was dried over Na2SO4. After the solvents were evaporated, the crude product was purified by column to give 6-allyl-3-((2S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-1,3-oxazinan-2-one (80 mg, crude). was heated to reflux for 25 h washed with 1 N aq HCl The aqueous phase was extracted with EtOAc (3×) The combined organic phase was dried over Na2SO4 After the solvents were evaporated the crude product was purified by column

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

Procedure: To a solution of (S)-1,2,2-trimethylpropylamine (626 mg, 6.2 mmol) in methylene chloride (20 mL) and satd aq NaHCO3 (20 mL) was added triphosgene (607 mg, 2.05 mmol) at 0° C. The mixture was stirred for 15 min. The organic phase was separated, dried and concentrated to give (S)-3-isocyanato-2,2-dimethyl-butane (845 mg, 90%). 1H NMR (CDCl3): 0.90 (s, 9H), 1.21 (m, 3H), 3.31 (m, 1H). The organic phase was separated dried concentrated