反应详情

A solution of propargylamine (1.10 g, 0.02 mole) in 22 ml of methanol was added dropwise to a stirred suspension of 1-methylsulfinyl-1-methylthio-2-nitroethylene [prepared according to the procedure described in Belgian Pat. No. 841,526] at 25°. After 1 hour at ambient temperature, the solution was evaporated under reduced pressure, triturated under 20 ml of cold isopropyl alcohol and filtered to give product. Recrystallization from isopropyl alcohol gave 1-methylthio-1-(2-propynylamino)-2-nitroethylene; mp 131°-132°.

1. customprepared
2. customat 25°
3. customthe solution was evaporated under reduced pressure
4. customtriturated under 20 ml of cold isopropyl alcohol
5. filtrationfiltered
6. customto give product
7. customRecrystallization from isopropyl alcohol