HuagongsheHuagongshe Chemistry Print Report · For research reference only
Diethyl Oxalate → 6,7-Dimethyl-2,3-quinoxalinediol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Diethyl Oxalate | HCID 7268 | — |
| Reactant | 4,5-Dimethyl-1,2-phenylenediamine | HCID 76635 | — |
| Product | 6,7-Dimethyl-2,3-quinoxalinediol | HCID 247670 | — |
Reaction Steps
A mixture of 4,5-dimethyl-benzene-1,2-diamine (60 g) and diethyl oxalate (600 mL) was heated under reflux for 1 h and then cooled. The precipitate of 6,7-dimethyl-1,4-dihydro-quinoxaline-2,3-dione was filtered off and washed with 96% ethanol to give 38 g of the title compound. ESI-MS: m/z 191.1 [MH+], 403.3 [2MNa+]; required MW=190.2
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08729082B2 |
| Source dataset | uspto-grants-2014_05 |
| ORD ID | ord-05354a1a023b4be983fc3be7f3e8b649 |
| Source note | uspto-grants-2014_05 |