3-methylsulfonylpropanenitrile

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

Procedure: 31 g (0.23 mol) of 3-methylsulphonyl-propionitrile were melted at 100° C. in a 100 ml four-necked flask, and 2.2 g of PCl3 and 0.7 g of pyridine were added. 34 g of chlorine (0.48 mol) were then introduced at 100° C. during the course of 7 hours. After further addition of 1.1 g of PCl3 and 0.4 g of pyridine, 10 g of chlorine were again introduced. After cooling, the reaction mixture was diluted with 30 ml of methylene chloride and extracted twice by shaking with 50 ml of water in each case, and the organic phase was concentrated. 30 g of dark brown oil which, after mixing with a little ethanol, cooling and filtering off under suction, gave 9.5 g (21%) of pale crystals, melting point 110° to 114° C., without the yield of mother liquor. were again introduced After cooling extracted twice the organic phase was concentrated 30 g of dark brown oil which, after mixing with a little ethanol cooling filtering off under suction

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

Procedure: 31 g (0.23 mol) of 3-methylsulphonyl-propionitrile were melted at 100° C. in a 100 ml four-necked flask, and 2.2 g of PCl3 and 0.7 g of pyridine were added. 34 g of chlorine (0.48 mol) were then introduced at 100° C. during the course of 7 hours. After further addition of 1.1 g of PCl3 and 0.4 g of pyridine, 10 g of chlorine were again introduced. After cooling, the reaction mixture was diluted with 30 ml of methylene chloride and extracted twice by shaking with 50 ml of water in each case, and the organic phase was concentrated. 30 g of dark brown oil which, after mixing with a little ethanol, cooling and filtering off under suction, gave 9.5 g (21%) of pale crystals, melting point 110° to 114° C., without the yield of mother liquor. were again introduced After cooling extracted twice the organic phase was concentrated 30 g of dark brown oil which, after mixing with a little ethanol cooling filtering off under suction