HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phosphorus pentachloride → 7-Fluoro-9,10-dihydro-9,10-dioxo-2-anthroyl chloride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phosphorus pentachloride | HCID 24819 | — |
| Reactant | 7-Fluoro-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid | HCID 19926672 | — |
| Solvent | O-Xylene | HCID 7237 | — |
| Product | 7-Fluoro-9,10-dihydro-9,10-dioxo-2-anthroyl chloride | HCID 21507662 | 87.4% |
Reaction Steps
7-Fluoro-9,10-dihydro-9,10-dioxo-2-anthroic acid (15 g), phosphorus pentachloride (12 g) and xylene (300 ml) were heated for 15 minutes at 100°-130° till a clear solution was obtained. This was concentrated to small volume and allowed to crystallise. The product was washed with light petroleum (bp 40°-60°) to give 7-fluoro-9,10-dihydro-9,10-dioxo-2-anthroyl chloride (14 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03984429 |
| Source dataset | uspto-grants-1976_10 |
| ORD ID | ord-fa21a25f5c4f4f68a7e72c5e2ff9e0af |
| Source note | uspto-grants-1976_10 |