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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 649278Generated: October 30, 2026

Ethanol → 6,11-Dihydroxy-7,8,9,10-tetrahydrotetracene-5,12-dione

https://huagongshe.com/reaction/649278

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantPhthaloyl chlorideHCID 6955—
Reactant1,4-Naphthalenediol, 5,6,7,8-tetrahydro-HCID 83622—
Product6,11-Dihydroxy-7,8,9,10-tetrahydrotetracene-5,12-dioneHCID 41929088%

Reaction Steps

The method was similar to Example 1 but using 16.4 g (0.1 mols) of 1,4-dihydroxy-5,6,7,8-tetrahydronaphthalene and 20.2 g (0.1 mol) of phthalic acid dichloride. The product was 33.7 g (88% yield) of 6,11-dihydroxy-7,8,9,10-tetrahydro-5,12-naphtacenequinone (9), m.p.=194°-196° C. (EtOH).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04739062
Source datasetuspto-grants-1988_04
ORD IDord-7096ba54468f407297ec2989809e6acc
Source noteuspto-grants-1988_04