HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → HCID 12724767, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 12713232 | HCID 12713232 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 12724767 | HCID 12724767 | — |
Reaction Steps
From 3.5 g of 7-fluoro-4,9-dihydro-4-methyl-9-oxo-pyrazolo[5,1-b]quinazoline-2-carboxylic acid, ethyl ester, 50 ml of 1 N aqueous sodium hydroxide and 175 ml of methanol, following the procedure of Example 14, there is obtained 7fluoro-4,9-dihydro-4-methyl-9-oxo-pyrazolo[5,1-b]quinazoline-2-carboxylic acid; mp 295° C., after crystallization from dimethylformamide/methanol.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04261997 |
| Source dataset | uspto-grants-1981_04 |
| ORD ID | ord-4b6eceecc7d24e54a0132451206a8d12 |
| Source note | uspto-grants-1981_04 |