Diethyl Oxalate → HCID 22097060, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([NH2:8])[C:5]([NH2:9])=[CH:4][C:3]=1[N:10]1[CH:14]=[CH:13][CH:12]=[CH:11]1.[C:15](OCC)(=[O:21])[C:16](OCC)=[O:17]>>[Cl:1][C:2]1[CH:7]=[C:6]2[C:5]([NH:9][C:15](=[O:21])[C:16](=[O:17])[NH:8]2)=[CH:4][C:3]=1[N:10]1[CH:14]=[CH:13][CH:12]=[CH:11]1Participants
3
Procedure
0.6 g (2.9 mmol) of N-(2-chloro-4,5-diaminophenyl)pyrrole and 32 g (221 mmol) of diethyl oxalate were refluxed for 3 hours. The reaction mixture was cooled and then the crude product was filtered off and washed with petroleum ether.
Workup
- temperatureThe reaction mixture was cooled
- filtrationthe crude product was filtered off
- washwashed with petroleum ether
Sources & evidence
- ORD record
- ord-840b98d3c36f42e6b1356c01c19d7564
- Source dataset
- uspto-grants-1998_02
- Patent number
- US05714489
Reaction notes
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