HuagongsheHuagongshe Chemistry Print Report · For research reference only
5,8-Difluoro-2H-chromene → 5,7-Difluoro-2H-chromene
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 5,8-Difluoro-2H-chromene | HCID 22482814 | — |
| Reactant | 1,3-Difluoro-5-(prop-2-yn-1-yloxy)benzene | HCID 22482850 | — |
| Product | 5,7-Difluoro-2H-chromene | HCID 22482855 | 23% |
Reaction Steps
This compound was prepared analogously to 5,8-difluoro-2H-chromene but using (18 g, 107 mmol) of 1,3-difluoro-5-prop-2-ynyloxybenzene and PEG-200 as solvent to give the title compound (4 g, 23%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07517992B2 |
| Source dataset | uspto-grants-2009_04 |
| ORD ID | ord-0aae4c5a06c943caabbef193a52d6da0 |
| Source note | uspto-grants-2009_04 |