تفاعل #992675

ord-5e992babb9514177bb334f7e36a2c9ad

معادلة التفاعل

O=C(O)C(=O)O
Oxalic acid
N=C(N)NN.O=C(O)O
Aminoguanidine bicarbonate
N=C(N)N.O=C(O)O
guanidine carbonate
NC(N)=[NH2+].NC(N)=[NH2+].O=C([O-])C(=O)[O-]
Guanidinium Oxalate

الكواشف

لا شيء

المذيبات

ظروف التفاعل

درجة الحرارة
90°CELSIUS
الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    أخرىto 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
    أخرىThe water was removed from the reaction mixture in vacuo
  4. 4
    أخرىThe product was recovered as a crystalline white solid

الإجراء التجريبي

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.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US08012277B2uspto-grants-2011_09