HuagongsheHuagongshe Chemistry Print Report · For research reference only
1,1'-Carbonyldiimidazole → HCID 178493410, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1,1'-Carbonyldiimidazole | HCID 68263 | — |
| Reactant | HCID 178493411 | HCID 178493411 | — |
| Reactant | HCID 178509300 | HCID 178509300 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 178493410 | HCID 178493410 | 43.8% |
Reaction Steps
From 4,9-dihydro-5,7-dimethoxy-9-oxo-pyrazolo-[5,1-b]quinazoline-2-carboxylic acid (1.54 g; 5 mmole), DMF (300 ml), 1,1'-carbonyldiimidazole (1.8 g; 11 mmole) and 5-amino-1H-tetrazole, monohydrate (0.52 g; 5 mmole), following the procedure of Example 3, there is obtained 4,9-dihydro-5,7-dimethoxy-9-oxo-N-1H-tetrazol-5-yl-pyrazolo-[5,1-b]quinazoline-2-carboxamide (0.78 g); mp 338°-342° (d).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04247555 |
| Source dataset | uspto-grants-1981_01 |
| ORD ID | ord-43ed1e192fb943759c3fa53986d0f2e0 |
| Source note | uspto-grants-1981_01 |