HuagongsheHuagongshe Chemistry Print Report · For research reference only
Diaminomaleonitrile → HCID 178510651, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Diaminomaleonitrile | HCID 2723951 | — |
| Reactant | Benzeneacetic acid, 3,4-dihydroxy-5-nitro-alpha-oxo-, hexyl ester | HCID 5747978 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 178510651 | HCID 178510651 | — |
Reaction Steps
A solution of 4.0 g of n-hexyl 3,4-dihydroxy-5-nitrophenylglyoxylate and 1.5 g of diaminomaleonitrile in 35 ml of ethanol is heated to boiling under reflux for 24 hours. The alcohol is then distilled, the residue is dissolved in ether, washed with water, dried over sodium sulfate, filtered and evaporated. There is obtained 6-hydroxy-5-(3,4-dihydroxy-5-nitrophenyl)-2,3-pyrazinedicarbonitrile of m.p. >300° (from ether/methylene chloride).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05633371 |
| Source dataset | uspto-grants-1997_05 |
| ORD ID | ord-ca95057036464fb2a555c89433f5e408 |
| Source note | uspto-grants-1997_05 |