N-methyl-2-methylsulfanylacetamide

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

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

実験手順: To a solution of 38.3 g (0.166 mole) of 2-amino-5-chlorobenzophenone in 1 liter of methylene chloride cooled to -70° C. under an atmosphere of nitrogen was added 18.05 g (0.167 mole) of t-butylhypochlorite. The solution was stirred for 15 min and then a solution of 20.3 g (0.171 mole) of 2-methylthio-N-methylacetamide in 100 ml of methylene chloride was added. The solution was stirred at -70° C. for 2 hrs and 25 ml of triethylamine was added. While stirring, the solution was allowed to warm to room temperature followed by extraction with water and drying of the organic layer with magnesium sulfate. The volume of the solution was reduced to about 400 ml, ether was added and the solution placed in a refrigerator at about 0° C. overnight. The solid which crystallized was dried under high vacuum for about 4 hr at 50° C. Weight of the product was 31.56 g (54.6%) which melted at 170°-171° C. The solution was stirred at -70° C. for 2 hrs While stirring followed by extraction with water drying of the organic layer with magnesium sulfate was added the solution placed in a refrigerator at about 0° C. overnight The solid which crystallized was dried under high vacuum for about 4 hr at 50° C

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

実験手順: A solution of 29.6 g (0.15 mole) of 2-aminobenzophenone in 350 ml of methylene chloride was cooled to -70° C. and 17.9 g (0.15 mol) of 2-methylthio-N-methylacetamide in 20 ml of methylene chloride was added. To the (-70° C.) mixture was added dropwise a solution of 17.2 g (0.15 mole) of 95% t-butylhypochlorite in 30 ml of methylene chloride. The temperature was maintained at or below -65° C. for 1.5 hr, then 15.1 g (0.15 mole) of triethylamine was added rapidly. The solution was allowed to warm to room temperature and was washed with water. The organic solution was concentrated and the residue crystallized when mixed with isopropyl ether. The solid was recrystallized from isopropyl alcohol to give 31 g (65%) of yellow needles, m.p. 149.0°-150.0° C. The temperature was maintained at or below -65° C. for 1.5 hr was washed with water The organic solution was concentrated the residue crystallized when mixed with isopropyl ether The solid was recrystallized from isopropyl alcohol