N-(氰甲基)苯磺酰胺

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred solution of 5.0 g (0.025 mole) N-cyanomethyl phenylsulfonamide (the product of Example 6) and 6.0 g (0.026 mole) 1,1,2,2-tetrachloroethylsulfenyl chloride in 125 ml methylene chloride, 3.2 g (0.032 mole) triethylamine in 25 ml methylene chloride were dropped in over 35 minutes. The reaction mixture was stirred 20 minutes. The reaction mixture was washed three times with 75 ml portions of water, dried over magnesium sulfate and stripped to give 6.4 g of a brown oil. The oil crystallized when hexane was added to it and the resulting mixture was cooled in an ice bath. The solids were taken up with 25 ml toluene, treated with charcoal and filtered, Hexane, 25 ml, was added to the toluene filtrate, and the resulting mixture was cooled in an ice bath to give 2.3 g of yellow crystals, melting point 89°-101° C. The crystals were recrystallized from a mixture of 25 ml hexane and 5 ml toluene. The filtrate was cooled in an ice bath to give 0.8 g of the above-identified product as a white solid, melting point 106° C.-108° C. The reaction mixture was washed three times with 75 ml portions of water dried over magnesium sulfate

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred solution of 27.8 g (0.3 moles) aminoacetonitrile hydrochloride and 24.0 g (0.3 moles) 50% aqueous sodium hydroxide in 200 ml water, 17.7 g (0.1 mole) benzenesulfonyl chloride were dropped in over about 25 minutes. During the addition, the temperatures of the reaction mixture was kept under 20° C. using an ice bath. After the addition was complete, the ice bath was removed; stirring of the reaction mixture continued for about 30 minutes. The solids which formed were isolated by filtration and were washed with 200 ml water. The resulting beige solids were dissolved in 150 ml methylene chloride, dried over magnesium sulfate and stripped. The resulting white solids were washed with hexane, filtered and air-dried to give 13.9 g of the above-identified product, melting point 81°-83° C. During the addition was kept under 20° C. After the addition the ice bath was removed The solids which formed were isolated by filtration were washed with 200 ml water The resulting beige solids were dissolved in 150 ml methylene chloride dried over magnesium sulfate The resulting white solids were washed with hexane filtered air-dried