反応 #992682

ord-c7156b57d90c4b4eb7ca744e436741aa

反応方程式

O=C(O)C(F)(F)F
Trifluoroacetic acid
N=C(N)N.O=C(O)O
Guanidine carbonate
NC(N)=[NH2+].O=C([O-])C(F)(F)F
Guanidinium TFA

溶媒

反応条件

温度
90°CELSIUS
詳細条件
See reaction.notes.procedure_details.

後処理

  1. 1
    workup.STIRRINGwith stirring as
  2. 2
    その他to avoid bubbling over the sides of the beaker due to the evolution of carbon dioxide
  3. 3
    workup.STIRRINGThe reaction was stirred at room temperature for 2 hours
  4. 4
    その他The water was removed in vacuo
  5. 5
    その他The product was recovered as a white crystalline solid

実験手順

Trifluoroacetic acid (50.0 ml, 74.0 g, 649 mmol) was added to 500 ml of distilled water in a 4-liter beaker with stirring. Guanidine carbonate (58.5 g, 324.5 mmol) was added at room temperature in portions with stirring as to avoid bubbling over the sides of the beaker due to the evolution of carbon dioxide. The reaction was stirred at room temperature for 2 hours. The water was removed in vacuo with heating to approximately 90° C. for 4 hours. The product was recovered as a white crystalline solid.

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US08012277B2uspto-grants-2011_09