Benzeneethanamine, alpha-ethenyl-, (alphaS)-

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

実験手順: (S)-3-Amino-4-phenyl-1-butene (5.2 g, 35.4 mmol) was dissolved in ethyl formate (100 ml) and the solution was refluxed with heat for 6 hours. After completion of reaction, the solution was concentrated under reduced pressure to give the desired compound as an orange oil. the solution was refluxed with heat for 6 hours After completion of reaction the solution was concentrated under reduced pressure

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

実験手順: (S)-3-Amino-4-phenyl-1-butene (5.2 g, 35.4 mmol) was dissolved in ethyl formate (100 ml) and the solution was refluxed with heat for 6 hours. After completion of reaction, the solution was concentrated under reduced pressure to give the desired compound as an orange oil. the solution was refluxed with heat for 6 hours After completion of reaction the solution was concentrated under reduced pressure

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

実験手順: (S)-3-Amino-4-phenyl-1-butene (5.2 g, 35.4 mmol) was dissolved in ethyl formate (100 ml) and the solution was refluxed with heat for 6 hours. After completion of reaction, the solution was concentrated under reduced pressure to give the desired compound as an orange oil. Yield: 6.44 g. the solution was refluxed with heat for 6 hours After completion of reaction the solution was concentrated under reduced pressure

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

実験手順: (S)-3-Amino-4-phenyl-1-butene (5.2 g, 35.4 mmol) was dissolved in ethyl formate (100 ml) and the solution was refluxed with heat for 6 hours. After completion of reaction, the solution was concentrated under reduced pressure to give the desired compound as an orange oil. Yield: 6.44 g. the solution was refluxed with heat for 6 hours After completion of reaction the solution was concentrated under reduced pressure

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

実験手順: 2.36 g (13.6 mmol) of methansulfonic acid anhydride and 1.88 ml (13.6 mmol) of triethylamine are added at 0° C. to a solution of 1 g (6.8 mmol) of 1-phenyl-3-buten-2(S)-amine from Example 16b) in 10 ml methylene chloride and the mixture is stirred for 1 h. The reaction mixture is washed with water and saturated sodium hydrogen carbonate solution and the organic phase is filtered through cotton wadding and concentrated by evaporation to yield 2(S)-methylsulfonylamino-1-phenyl-3-butene. 1 g (4.4 mmol) of that crude product is dissolved in 30 ml of methylene chloride, 3.05 g (17.7 mmol) of 4-chloroperbenzoic acid are added at RT and stirring is carried out for 18 h. The reaction solution is washed 5 times with 10% aqueous sodium sulfite solution, filtered through cotton wadding and fully concentrated by evaporation. According to 1H-NMR the crude product contains both the (2R)- and the (2S)-epimer in a ratio of 4:1. 1 H-NMR (200 MHz, CD3OD): 2.30 and 2.52 (2 s, together 3H), 2.6 to 3.2 (m, 5H), 3.55 (m, 1H) 7.32 (m, 5H). The reaction mixture is washed with water and saturated sodium hydrogen carbonate solution the organic phase is filtered through cotton wadding concentrated by evaporation

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

実験手順: 35.6 ml (0.28 mol) of an approximately 48% solution of boron trifluoride in ether are added at 5° C., over a period of 10 min, to a solution of 18.8 g (0.055 mol) of 3(S)-(Boc-amino)-2(R,S)-hydroxy-4-phenyl-1-trimethylsilyl-butane in 420 ml of methylene chloride. The reaction mixture is then stirred at RT for 16 h, cooled to 10°0 C. and, over a period of 20 min, 276 ml of a 4N sodium hydroxide solution are added. The aqueous phase is removed and extracted twice with 400 ml of methylene chloride each time. The combined organic extracts are washed with brine and dried over sodium sulfate. The title product is further used without additional purification. TLC Rf (C)=0.15; IR (methylene chloride) (cm-1): 3370, 3020, 2920, 1640, 1605. cooled to 10°0 C and, over a period of 20 min The aqueous phase is removed extracted twice with 400 ml of methylene chloride each time The combined organic extracts are washed with brine dried over sodium sulfate The title product is further used without additional purification

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

実験手順: (S)-3-Amino-4-phenyl-1-butene (5.2 g, 35.4 mmol) was dissolved in ethyl formate (100 ml) and the solution was refluxed with heat for 6 hours. After completion of reaction, the solution was concentrated under reduced pressure to give the desired compound as an orange oil. the solution was refluxed with heat for 6 hours After completion of reaction the solution was concentrated under reduced pressure

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

実験手順: (S)-3-Amino-4-phenyl-1-butene (5.2 g, 35.4 mmol) was dissolved in ethyl formate (100 ml) and the solution was refluxed with heat for 6 hours. After completion of reaction, the solution was concentrated under reduced pressure to give the desired compound as an orange oil. the solution was refluxed with heat for 6 hours After completion of reaction the solution was concentrated under reduced pressure