HuagongsheHuagongshe Chemistry Print Report · For research reference only
Potassium Iodide → ethyl 4-oxo-8-[7-(2-n-propylphenoxy)heptyloxy]-4H-1-benzopyran-2-carboxylate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Potassium Iodide | HCID 4875 | — |
| Reactant | ethyl 8-hydroxy-4-oxo-4H-1-benzopyran-2-carboxylate | HCID 12355847 | — |
| Reactant | 7-Bromoheptyl 2-n-propylphenyl ether | HCID 13091008 | — |
| Solvent | Acetone | HCID 180 | — |
| Product | ethyl 4-oxo-8-[7-(2-n-propylphenoxy)heptyloxy]-4H-1-benzopyran-2-carboxylate | HCID 22753569 | — |
Reaction Steps
A mixture of 4.84 parts of ethyl 8-hydroxy-4-oxo-4H-1-benzopyran-2-carboxylate, 12.5 parts of 7-bromoheptyl 2-n-propylphenyl ether, 1 part of potassium iodide and 50 parts of anhydrous acetone was refluxed for 76 hours. After filtration the organic layer was concentrated and chromatographed over silica gel. Elution with benzene/chloroform (1:1) furnished 8.9 parts of ethyl 4-oxo-8-[7-(2-n-propylphenoxy)heptyloxy]-4H-1-benzopyran-2-carboxylate as a gum.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04133889 |
| Source dataset | uspto-grants-1979_01 |
| ORD ID | ord-e8691e4f03d14567802b97fd861996e7 |
| Source note | uspto-grants-1979_01 |