Reaktion #55671

Reaktionsgleichung

propargylamine

1-methylsulfinyl-1-methylthio-2-nitroethylene

→

title product

1-Methylthio-1-(2-propynylamino)-2-nitroethylene

Lösungsmittel

methanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigeprepared
2. 2
   Sonstigeat 25°
3. 3
   SonstigeAfter 1 hour at ambient temperature the solution was evaporated under reduced pressure
4. 4
   Sonstigetriturated under 20 ml of cold isopropanol
5. 5
   Filtrationfiltered
6. 6
   Sonstigeto give the product
7. 7
   SonstigeRecrystallization from isopropanol

Vorschrift

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 Patent 841,353], at 25°. After 1 hour at ambient temperature the solution was evaporated under reduced pressure, triturated under 20 ml of cold isopropanol, and filtered to give the product. Recrystallization from isopropanol gave the title product, mp 131°-132°.

Quelle