HuagongsheHuagongshe Chemistry Print Report · For research reference only
Catechol → Alizarin
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Catechol | HCID 289 | — |
| Reactant | Phthaloyl chloride | HCID 6955 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | Alizarin | HCID 6293 | 55% |
Reaction Steps
The method was similar to Example 1, using 11.0 g (0.1 mol) of 1,2-dihydroxybenzene and 20.2 g (0.1 mol) of phthalic acid dichloride. The product was 13.2 g (55% yield) of 1,2-dihydroxy-9,10-anthraquinone (8), m.p.=288°-289° C. (literature 288°-289° C. EtOH).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04739062 |
| Source dataset | uspto-grants-1988_04 |
| ORD ID | ord-83231d4984a64e29b8f315d0a2fc8742 |
| Source note | uspto-grants-1988_04 |