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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 444162Generated: October 26, 2026

Thionyl Chloride → 3-Chlorocarbonyl-10,11-dihydro-11-oxodibenzo[b,f][1,4]thiazepin

https://huagongshe.com/reaction/444162

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant10,11-Dihydro-11-oxodibenzo[b,f][1,4]thiazepin-3-carboxylic acidHCID 13013923—
Product3-Chlorocarbonyl-10,11-dihydro-11-oxodibenzo[b,f][1,4]thiazepinHCID 23464480—

Reaction Steps

Heat a solution of 5 gm. of 10,11-dihydro-11-oxodibenzo[b,f][1,4]thiazepin-3-carboxylic acid and 40 ml of thionyl chloride under reflux for 20 minutes. Evaporate the reaction mixture under vacuum to dryness. Repeat the evaporation with two 30 ml portions of carbon tetrachloride. Crystallize the residue from diisopropyl ether to obtain the title product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04263207
Source datasetuspto-grants-1981_04
ORD IDord-2cef2ca99cde451ca11b0dedbf9439f3
Source noteuspto-grants-1981_04