Urea → HCID 287116, compound
Reaction equation
[Na].[NH2:2][C:3]([NH2:5])=[O:4].C([C:8]1[C:9]([C:14](O)=[O:15])=[N:10][CH:11]=[CH:12][CH:13]=1)C>N>[N:10]1[CH:11]=[CH:12][CH:13]=[CH:8][C:9]=1[C:14]([NH:2][C:3]([NH2:5])=[O:4])=[O:15]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of sodium (0.23 g, 10 mmol), urea (0.8 g, 13.3 mmol) and liquid ammonia (40 ml) was stirred until the blue colour was discharged, then ethyl 2-pyridinecarboxylic acid (2.85 g, 18.8 mmol) was added all at once. After 1 h the ammonia was evaporated and the residue triturated with water to give the above compound, mp 183°-185° C.
Workup
- customAfter 1 h the ammonia was evaporated
- customthe residue triturated with water
- customto give the above compound, mp 183°-185° C.
Sources & evidence
- ORD record
- ord-0591ab8b2b0e4db19558bbc12e1f6b05
- Source dataset
- uspto-grants-1992_04
- Patent number
- US05106843
Reaction notes
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