HuagongsheHuagongshe Chemistry Print Report · For research reference only
Glyoxylic Acid → 1-Nitro-5,6-dihydropyrazolo[1,5-c]quinazoline-5-carboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Glyoxylic Acid | HCID 760 | — |
| Reactant | 5-(o-Aminophenyl)-4-nitropyrazole | HCID 20560260 | — |
| Product | 1-Nitro-5,6-dihydropyrazolo[1,5-c]quinazoline-5-carboxylic acid | HCID 135737771 | 69% |
Reaction Steps
5-(o-Aminophenyl)-4-nitropyrazole is reacted with glyoxylic acid as described in Example 11 to give 1-nitro-5,6-dihydropyrazolo[1,5-c]quinazoline-5-carboxylic acid with a yield of 69%. M.p.: 203°-205° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04303660 |
| Source dataset | uspto-grants-1981_12 |
| ORD ID | ord-5d034895b38f40759ed2876c0526d26d |
| Source note | uspto-grants-1981_12 |