HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methan(2H)ol → 1-(4-Methoxyphenyl)-3-oxo-2,3-dihydro-1H-pyrazole-4-carboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methan(2H)ol | HCID 123113 | — |
| Reactant | 4-Ethoxycarbonyl-2-[4-methoxyphenyl]-3-pyrazolin-5-one | HCID 20269015 | — |
| Product | 1-(4-Methoxyphenyl)-3-oxo-2,3-dihydro-1H-pyrazole-4-carboxylic acid | HCID 20269046 | — |
Reaction Steps
The ester prepared as described above in (a) was converted to the title acid in a manner analogous to example 11(b). The acid possessed νmax (nujol) 1690, 1670, 1599, 1580, 1575,cm-1, δ(CH3OD|D6DMSO) 3.78 (3H,s,--OMe), 7.00 (2H,d,J9 Hz, protons o to --OMe), 7.66 (2H,d,J9 Hz, protons m to --OMe), 8.45(1H,s, C3 -pyrazole proton). Found: M30, 234.0639; C11H10N2O4 requires M,234.0641.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04537886 |
| Source dataset | uspto-grants-1985_08 |
| ORD ID | ord-3397bc01df18497792a0ad9bbb5eb50d |
| Source note | uspto-grants-1985_08 |