HuagongsheHuagongshe Chemistry Print Report · For research reference only
Quinoline-5,6-diamine → 1,4-Dihydropyrido[3,2-f]quinoxaline-2,3-dione
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Quinoline-5,6-diamine | HCID 426874 | — |
| Reactant | 6153-56-6 | HCID 12252961 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Product | 1,4-Dihydropyrido[3,2-f]quinoxaline-2,3-dione | HCID 10375912 | 83% |
Reaction Steps
A mixture of 5,6-quinolinediamine (11.3 g, 0.071 mol) and oxalic acid hydrate (17.9 g, 0.142 mol) in 200 mL 2N HCl was heated at reflux for 2 hours. The solid (12.3 g, 83% yield) was collected by filtration and washed consecutively with water and ether.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06703391B2 |
| Source dataset | uspto-grants-2004_03 |
| ORD ID | ord-18ce3a370f5c47b09af3e24cfb90cbdf |
| Source note | uspto-grants-2004_03 |