反应详情

Pentafluorothiophenol (5 g) was added to a solution of sodium hydroxide (2.0 g) in ethanol (50 ml) and the resulting solution was treated with a solution of 2-picolyl chloride, hydrochloride (4.1 g) in ethanol (25 ml). The mixture was stirred at ambient temperature for 4 hours, filtered through Kieselghur and the solvent removed by evaporation. The residue was converted into the hydrochloride with ethereal HCl solution and this was recrystallised from acetone-ether to give 2-(((pentafluorophenyl)thio)methyl)pyridine, hydrochloride (5.0 g) mp 157°-8° C. (Found: C,44.0; H,2.4; N,4.0; C12H6F5NS.HCl requires C,44.0; H,2.15; N,4.3%).

1. filtrationfiltered through Kieselghur
2. customthe solvent removed by evaporation
3. customthis was recrystallised from acetone-ether