HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1796959Generated: November 3, 2026
O-Phenylenediamine → 2,3-Bis(4-aminophenyl)-quinoxaline
https://huagongshe.com/reaction/1796959
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | O-Phenylenediamine | HCID 7243 | — |
| Reactant | 1,2-Bis(4-aminophenyl)-1,2-ethanedione | HCID 275137 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | 2,3-Bis(4-aminophenyl)-quinoxaline | HCID 459145 | — |
Reaction Steps
A mixture of 1.0 g (4.17 mmole) of 4,4′-diaminobenzil and 0.45 g of o-phenylenediamine in 250 ml glacial acetic acid was heated at 50° C. for 15 mins., then stirred for 16 hours at room temperature. The mixture was then heated to 80° C. and allowed to cool slowly. The solvent was removed under vacuum and the residue was redissolved in ethanol and that was removed under vacuum.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07034026B2 |
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| Source dataset | uspto-grants-2006_04 |
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| ORD ID | ord-ae4cc4d8f82c4b0a8705dcec0abc13ab |
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| Source note | uspto-grants-2006_04 |
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