HuagongsheHuagongshe Chemistry Print Report · For research reference only
Isopropanol → HCID 57443322, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Isopropanol | HCID 3776 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Benzoic acid, 2-hydroxy-4-methyl-, methyl ester | HCID 78400 | — |
| Reactant | N-carboxylatoiminocarbamate | HCID 51573101 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 57443322 | HCID 57443322 | 81.4% |
Reaction Steps
Disopropyl azodicarboxylate (8.7 mL, 44 mmol) is added to a stirred solution of methyl 2-hydroxy-4-methylbenzoate (4.85 g, 29.2 mmol), isopropanol (3.3 mL, 44 mmol), triphenylphosphene (11.5 g, 43.8 mmol) and THF (50 mL) at room temperature. The exothermic reaction is cooled in an ice bath and is allowed to stir overnight at room temperature. The mixture is diluted with ethyl acetate and water, and the organic phase is washed with brine and dried over MgSO4. The crude residue is purified by flash chromatography (20 to 40% EtOAc/heptane) to afford the title compound (4.95 g, 81%) as an oil. ES/MS m/e 209.3 (M+1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07846960B2 |
| Source dataset | uspto-grants-2010_12 |
| ORD ID | ord-a8d9588ef48743f6b756d00124de4ef2 |
| Source note | uspto-grants-2010_12 |