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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1074978Generated: November 2, 2026

Hydrochloric Acid → Dibenzo[b,f]thiepin-3-carboxylic Acid 5-Oxide

https://huagongshe.com/reaction/1074978

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
Reactant3-Cyanodibenzo[b,f]thiepin 5-oxideHCID 13151873—
ProductDibenzo[b,f]thiepin-3-carboxylic Acid 5-OxideHCID 13151872—

Reaction Steps

925 Mg. 3-cyanodibenzo[b,f]thiepin 5-oxide are refluxed for 31/2 hours in a mixture of 60 cc. 10% aqueous sodium hydroxide solution and 60 cc. denatured alcohol. The mixture is diluted with 1/2 liter of water and acidified with concentrated HCl. The acid precipitates and is filtered and dried. The yield of white dibenzo[b,f]thiepin-3-carboxylic acid 5-oxide is 965 mg. (97%), m.p. dec. 249° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04394515
Source datasetuspto-grants-1983_07
ORD IDord-b134e3e4591f48fdb7f8fccd42c90190
Source noteuspto-grants-1983_07