HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl bromoacetate → Ethyl [(4,4-dimethyl-3,4-dihydro-2H-chromen-7-yl)oxy]acetate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl bromoacetate | HCID 7748 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 4,4-dimethyl-3,4-dihydro-2H-1-benzopyran-7-ol | HCID 15729796 | — |
| Product | Ethyl [(4,4-dimethyl-3,4-dihydro-2H-chromen-7-yl)oxy]acetate | HCID 58640424 | 99.3% |
Reaction Steps
4,4-Dimethylchroman-7-ol (1.4 g, 8.0 mmol), potassium carbonate (3.3 g, 24.0 mmol) and ethyl bromoacetate (1.0 mL, 9.2 mmol) were treated in the same procedure described in Example 33(d). The crude residue was applied to a silica gel chromatography column and eluted with a volume mixture of hexane and ethyl acetate (19/1 to 4/1) to furnish 2.1 g (98% yield) of the title compound as a colorless oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07214824B2 |
| Source dataset | uspto-grants-2007_05 |
| ORD ID | ord-2d9d3be759c444f2850e18cba3ce4b3c |
| Source note | uspto-grants-2007_05 |