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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1464429Generated: October 30, 2026

Thionyl Chloride → 4,5,6,7-Tetrahydro-benzo[b]thiophene-2-carbonyl chloride

https://huagongshe.com/reaction/1464429

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant4,5,6,7-Tetrahydro-1-benzothiophene-2-carboxylic acidHCID 2063443—
Product4,5,6,7-Tetrahydro-benzo[b]thiophene-2-carbonyl chlorideHCID 6485362—

Reaction Steps

1.0 g of 4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid was reacted with 4 ml of thionyl chloride for 3.5 hours under reflux. Then, excess thionyl chloride was distilled off under reduced pressure to obtain 4,5,6,7-tetrahydrobenzo[b]thiophene-2-carbonyl chloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05304657
Source datasetuspto-grants-1994_04
ORD IDord-7fb9e1d23fca47a89f28e5f5c3d7c586
Source noteuspto-grants-1994_04