HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → HCID 15232720, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | 4,5-Diphenyl-2-oxazolenonanoic acid | HCID 131960 | — |
| Catalyst | Sulfuric Acid | HCID 1118 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Product | HCID 15232720 | HCID 15232720 | 96% |
Reaction Steps
A mixture of 4,5-diphenyl-2-oxazole nonanoic acid (800 mg, 2 mmol), methanol (2 mL) and concentrated sulfuric acid (2 drops) was heated to reflux. After 2 hours, the solvent was evaporated and the residue partitioned between CH2Cl2 and water. The organic phase was separated, washed with saturated NaHCO3 solution, dried over sodium sulfate and concentrated in vacuo to leave an oil. Chromatography on a column of silica gel using a mixture of hexanes and diethyl ether (4:1) as eluent gave methyl 4,5-diphenyl-2-oxazolenonanoate (800 mg, 96%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05262540 |
| Source dataset | uspto-grants-1993_11 |
| ORD ID | ord-78f90e43addb4234ade53f9ce9039d2e |
| Source note | uspto-grants-1993_11 |