HuagongsheHuagongshe Chemistry Print Report · For research reference only
1,3-Diethyl 2-oxopropanedioate → HCID 70549630, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1,3-Diethyl 2-oxopropanedioate | HCID 69105 | — |
| Reactant | HCID 6320219 | HCID 6320219 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 70549630 | HCID 70549630 | — |
Reaction Steps
4,5-Dibromo-o-phenylaminediamine was cyclized to the corresponding quinoxaline carboxylic acid ester by the procedure of Example 1 utilizing 4.1 g. of the diamine and 2.7 g. of diethyl ketomalonate in 75 ml. of anhydrous ethanol. Ethyl 6,7-dibromo-3,4-dihydro-3-oxo-2-quinoxaline carboxylate thus prepared melted at 235°-236° C. (yield=3.9 g.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04210647 |
| Source dataset | uspto-grants-1980_07 |
| ORD ID | ord-3f02d6678ed44b53b2f3850a376ea989 |
| Source note | uspto-grants-1980_07 |