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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 485439Generated: October 29, 2026

Acetic Acid → 8-Nitrodibenzo[b,f]thiepin-3-carboxylic acid 5,5-dioxide

https://huagongshe.com/reaction/485439

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantSulfuric AcidHCID 1118—
Reactant3-Cyano-8-nitrodibenzo[b,f]thiepin-5,5-dioxideHCID 20270214—
Product8-Nitrodibenzo[b,f]thiepin-3-carboxylic acid 5,5-dioxideHCID 13151882—

Reaction Steps

400 Mg. 3-cyano-8-nitrodibenzo[b,f]-thiepin-5,5-dioxide is refluxed in 5 cc. acetic acid and 5 cc. 50% aqueous sulfuric acid for 24 hours. The mixture is cooled down, the crystallized material is filtered, washed with water, dried at 135° C. in vacuum to yield 345 mg. (81.2%) acid, m.p. 310°-312° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04536507
Source datasetuspto-grants-1985_08
ORD IDord-c23cc5077431430baefd76d597638745
Source noteuspto-grants-1985_08