Reaction equation
[Cl:1][C:2]([Cl:7])([Cl:6])[C:3]([NH2:5])=[NH:4].C(=O)([O-])[O-].[K+].[K+].C([O:16][C:17](=O)[CH2:18][C:19]([CH2:21][Cl:22])=O)C>O>[Cl:22][CH2:21][C:19]1[N:5]=[C:3]([C:2]([Cl:7])([Cl:6])[Cl:1])[N:4]=[C:17]([OH:16])[CH:18]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 30.0 g (0.18 mole) trichloroacetamidine, 25.2 g (0.18 mole) potassium carbonate, 30.3 g (0.18 mole) ethyl-4-chloroacetoacetate and 400 ml water was stirred 18 hours. The aqueous solution was filtered and acidified with hydrochloric acid to give a precipitate. The precipitate was washed and dried to give 17.0 g (36% yield) of crude product. An analytical sample recrystallized from ligroin had mp 138°-144° C. The structure was confirmed via infrared and elemental analysis.
Workup
- filtrationThe aqueous solution was filtered
- customto give a precipitate
- washThe precipitate was washed
- customdried
Sources & evidence
- ORD record
- ord-332f755aa4f94c26b724fcd1f0380f00
- Source dataset
- uspto-grants-1982_08
- Patent number
- US04343803
Linked notes
Loading…