HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methyl iodide → 8-Allyl-7-methoxy-2,2-dimethyl-4-oxochroman
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 8-Allyl-7-hydroxy-2,2-dimethyl-4-oxochroman | HCID 2818057 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 8-Allyl-7-methoxy-2,2-dimethyl-4-oxochroman | HCID 57682872 | 96.8% |
Reaction Steps
567 mg of 8-allyl-7-hydroxy-2,2-dimethyl-4-oxochroman was dissolved in 15 ml of N,N-dimethylformamide. Thereafter, 0.51 g of potassium carbonate and 0.42 g of iodomethane were added to the reaction solution, and the obtained mixture was then stirred at room temperature overnight. The reaction solution was diluted with ethyl acetate, and then washed with a saturated ammonium chloride aqueous solution and a saturated sodium chloride aqueous solution. The organic layer was dried over magnesium sulfate, and then concentrated under a reduced pressure. The residue was purified by silica gel column chromatography (hexane-ethyl acetate), so as to obtain 582 mg of the subject compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07538123B2 |
| Source dataset | uspto-grants-2009_05 |
| ORD ID | ord-0cf065ae28864bd7badd076a5eeaaf86 |
| Source note | uspto-grants-2009_05 |