HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydroquinone → Quinizarin
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydroquinone | HCID 785 | — |
| Reactant | Phthaloyl chloride | HCID 6955 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | Quinizarin | HCID 6688 | 65% |
Reaction Steps
The method was the same as in Example 1, but using 11.0 g (0.1 mols) of hydroquinone and 20.1 g (0.1 mols) of phthalic acid dichloride. The product was 15.6 g (65% yield) of 1,4-dihydroxy-9,10-anthraquinone (2), m.p.=199° C. (literature 200°-202° C. EtOH).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04739062 |
| Source dataset | uspto-grants-1988_04 |
| ORD ID | ord-fe94fbe640734370af6217faf9d5cc6f |
| Source note | uspto-grants-1988_04 |