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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1067239Generated: October 26, 2026

Dimethylformamide → 1-Chloroisoquinoline-5-sulfonyl chloride

https://huagongshe.com/reaction/1067239

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantThionyl ChlorideHCID 24386—
Reactant1-Chloroisoquinoline-5-sulfonic acidHCID 13730020—
Product1-Chloroisoquinoline-5-sulfonyl chlorideHCID 21979781—

Reaction Steps

A suspension of 1-chloro-5-isoquinolinesulphonic acid (1.14 g, 4.68 mmol) in thionyl chloride (13 mL) and DMF (0.3 mL, 3.9 mmol) was heated to reflux for 3 h. Concentration in vacuo and azeotroping with toluene gave 1-chloro-5-chlorosulphonylisoquinoline as an off-white solid which was used immediately.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06248738B1
Source datasetuspto-grants-2001_06
ORD IDord-f43a5f12e3d040d1bd5f309686b170a0
Source noteuspto-grants-2001_06