HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Thiopheneglyoxylic acid → 2-Oxo-3-thiophen-2-yl-1,2-dihydro-quinoxaline-6-carboxylic acid ethyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Thiopheneglyoxylic acid | HCID 77694 | — |
| Reactant | Ethyl 3,4-Diaminobenzoate | HCID 458855 | — |
| Product | 2-Oxo-3-thiophen-2-yl-1,2-dihydro-quinoxaline-6-carboxylic acid ethyl ester | HCID 67207044 | — |
Reaction Steps
The quinoxalin-2-one of the present example is prepared with 3,4-Diamino-benzoic acid ethyl ester and (thiophen-2-yl) oxo-acetic acid via the method described in Example 12 to afford 2-Oxo-3-thiophen-2-yl-1,2-dihydro-quinoxaline-6-carboxylic acid ethyl ester.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07176208B2 |
| Source dataset | uspto-grants-2007_02 |
| ORD ID | ord-396121ecd5a94457bbdff4f113461da1 |
| Source note | uspto-grants-2007_02 |