Reaction #992688

ord-6ca404df5df049f58cf95bc3955ada4c

Reaction equation

O=C(O)C(=O)O
Oxalic acid
N=C(N)N.O=C(O)O
Guanidine carbonate
O=C=O
carbon dioxide
→
NC(N)=[NH2+].NC(N)=[NH2+].O=C([O-])C(=O)[O-]
Bis(guanidinium) Oxalate

Reactants

O=C(O)C(=O)O
Oxalic acid
N=C(N)N.O=C(O)O
Guanidine carbonate
O=C=O
carbon dioxide

Reagents

None

Solvents

O
water

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    OtherThe water was removed in vacuo
  2. 2
    Temperaturewith heating to approximately 90° C. for 4 hours
  3. 3
    OtherThe product was isolated as a white solid

Procedure

Oxalic acid (2.0 g, 22.20 mmol) was dissolved in 40 ml of distilled water. Guanidine carbonate (4.0 g, 22.20 mmol) was added at room temperature (carbon dioxide gas was evolved) and the reaction was stirred at room temperature for one hour. The water was removed in vacuo with heating to approximately 90° C. for 4 hours. The product was isolated as a white solid.

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08012277B2uspto-grants-2011_09