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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 596517Generated: October 30, 2026

Chloroform → 2-chloroformyl-5-oxo-5H-dibenzo[a,d]cycloheptene

https://huagongshe.com/reaction/596517

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroformHCID 6212—
ReactantThionyl ChlorideHCID 24386—
Reactant2-carboxy-5-oxo-5H-dibenzo[a,d]cyclohepteneHCID 12563001—
SolventDimethylformamideHCID 6228—
Product2-chloroformyl-5-oxo-5H-dibenzo[a,d]cyclohepteneHCID 20310684—

Reaction Steps

22 G. of 5-oxo-5H-dibenzo[a,d]cycloheptene-2-carboxylic acid is stirred in 200 ml. of chloroform, 50 ml. of thionyl chloride and 1 ml. of dimethylformamide for 8 hours. The mixture is evaporated to dryness and the residue recrystallized from acetonitrile to yield 2-chloroformyl-5-oxo-5H-dibenzo[a,d]cycloheptene.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04011241
Source datasetuspto-grants-1977_03
ORD IDord-2a2911dae3394d3386b2cd7ac4787123
Source noteuspto-grants-1977_03