Sodium Cyanide → 2-Amino-2-(thiophen-3-yl)acetonitrile hydrochloride
반응식
[C-:1]#[N:2].[Na+].[Cl-:4].[NH4+:5].[S:6]1[CH:10]=[CH:9][C:8]([CH:11]=O)=[CH:7]1>O.C([O-])(O)=O.[Na+]>[ClH:4].[NH2:5][CH:11]([C:8]1[CH:9]=[CH:10][S:6][CH:7]=1)[C:1]#[N:2][C-:1]#[N:2].[Na+].[Cl-:4].[NH4+:5].[S:6]1[CH:10]=[CH:9][C:8]([CH:11]=O)=[CH:7]1>O.C([O-])(O)=O.[Na+]>[ClH:4].[NH2:5][CH:11]([C:8]1[CH:9]=[CH:10][S:6][CH:7]=1)[C:1]#[N:2]Sodium cyanide (3.77 g, 77 mmol) was dissolved in water (40 ml) followed by ammonium chloride (4.53 g, 84.7 mmol). Thiophene-3-carboxaldehyde (Aldrich, 8.66 g, 77 mmol) was dissolved in MEOH (60 ml) and added via addition funnel to the rapidly stirring solution in a steady stream. The reaction was allowed to proceed at room temperature overnight. The reaction was diluted with saturated NaHCO3 and extracted with diethylether (3×100 ml). Organics were combined and washed with saturated NaCl and dried over Na2SO4. Organics were concentrated and the in a minimum amount of ether and filtered. The filtrate was satured with HCl gat at 0° C. The solids that formed were filtered and washed with ether to give after drying a yellow solid (6) which was used without further purification.
불러오는 중…
