反应 #3746448
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08759336B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: 2-Chloroaniline (23, 10.52 mL, 100 mmol) was dissolved in conc. HCl (9 mL) followed by H2O (25 mL). The mixture was heated at reflux for 30 minutes then allowed to cool to rom temperature. To this solution was added NH4SCN (7.61 g, 100 mmol) and the mixture was heated at reflux overnight. The reaction was allowed to cool to room temperature and a solid formed. The water layer was decanted off and the solid was dissolved in CH2Cl2 and the organic layer was washed in brine. The organic layer was dried over MgSO4, filtered and evaporated to give a residue, which was purified by flash silica gel chromatography. The mixture was heated at reflux for 30 minutes to cool the mixture was heated at reflux overnight a solid formed The water layer was decanted off the solid was dissolved in CH2Cl2 the organic layer was washed in brine The organic layer was dried over MgSO4 filtered evaporated to give a residue, which was purified by flash silica gel chromatography
来源 ID: ord-9d20ea524b224596bbae87f9c56909f3