反応 #992675

反応方程式

Oxalic acid

Aminoguanidine bicarbonate

guanidine carbonate

→

Guanidinium Oxalate

溶媒

water

反応条件

後処理

1. 1
   その他to avoid bubbling over the sides of the beaker due to the evolution of carbon dioxide during the reaction
2. 2
   workup.STIRRINGThe reaction was stirred at room temperature overnight (approximately 24 hours)
3. 3
   その他The water was removed from the reaction mixture in vacuo
4. 4
   その他The product was recovered as a crystalline white solid

実験手順

Oxalic acid (200.0 g, 2.22 mol) was weighed into a 2-liter beaker with a magnetic stir bar and dissolved in 1500 ml of distilled water. Aminoguanidine bicarbonate (362.8 g, 2.67 mol) and guanidine carbonate (160.1 g, 0.89 mol) were added in portions with stirring as to avoid bubbling over the sides of the beaker due to the evolution of carbon dioxide during the reaction. The reaction was stirred at room temperature overnight (approximately 24 hours). The water was removed from the reaction mixture in vacuo with heating to approximately 90° C. for 4 hours. The product was recovered as a crystalline white solid.

出典