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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1075015Generated: October 26, 2026

Thionyl Chloride → 3-Chlorocarbonyl-10,11-dihydro-11-oxodibenzo[b,f]thiepin

https://huagongshe.com/reaction/1075015

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant5-oxo-6H-benzo[b][1]benzothiepine-2-carboxylic acidHCID 827051—
Product3-Chlorocarbonyl-10,11-dihydro-11-oxodibenzo[b,f]thiepinHCID 20270211—

Reaction Steps

Heat a solution of 5 g. of 10,11-dihydro-11-oxodibenzo[b,f]thiepin-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 numberUS04394515
Source datasetuspto-grants-1983_07
ORD IDord-2af09a19d91e4b68a46aad7a9be70990
Source noteuspto-grants-1983_07