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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 26319Generated: October 27, 2026

Dimethylformamide → 2-Sulfo-2-(1-pyrryl)acetyl chloride

https://huagongshe.com/reaction/26319

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantHexaneHCID 8058—
ReactantThionyl ChlorideHCID 24386—
Reactant2-Sulfo-2-(1-pyrryl)acetic acidHCID 86736465—
SolventDiethyl EtherHCID 3283—
Product2-Sulfo-2-(1-pyrryl)acetyl chlorideHCID 86736467—

Reaction Conditions

Temperature40 °C

Reaction Steps

2-Sulfo-2-(1-pyrryl)acetic acid is treated with thionyl chloride in ether at room temperature according to the general procedure in J. Med. Chem., 15, 1105 (1972) until the evolution of gas stops. Dimethylformamide is added, the solution is warmed to about 40° C. for 1 hour. Then ether is added, followed by hexane and the solution cooled to about -25° C. 2-Sulfo-2-(1-pyrryl)acetyl chloride is isolated from the solvent by decantation.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04148998
Source datasetuspto-grants-1979_04
ORD IDord-e1561fb8a76442beaa3c4d1d9f935f62
Source noteuspto-grants-1979_04