HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → HCID 12724765, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 12713234 | HCID 12713234 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 12724765 | HCID 12724765 | — |
Reaction Steps
From 11.2 g of 7-chloro-4-ethyl-4,9-dihydro-9-oxo-pyrazolo[5,1-b]quinazoline-2-carboxylic acid, ethyl ester, 100 ml of 1 N aqueous sodium hydroxide and 250 ml of methanol, following the procedure of Example 14, there if obtained 7-chloro-4-ethyl-4,9-dihydro-9-oxo-pyrazolo[5,1-b]quinazoline-2-carboxylic acid; mp 267°-268° C. (d), 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-8e41bd1885e24c44b24de5bc678fc361 |
| Source note | uspto-grants-1981_04 |