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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1645373Generated: November 2, 2026

Thionyl Chloride → 1-(2,2-Difluoro-1,3-benzodioxol-5-yl)cyclopropanecarbonyl chloride

https://huagongshe.com/reaction/1645373

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant1-(2,2-Difluoro-1,3-benzodioxol-5-yl)cyclopropanecarboxylic acidHCID 44206103—
SolventTolueneHCID 1140—
Product1-(2,2-Difluoro-1,3-benzodioxol-5-yl)cyclopropanecarbonyl chlorideHCID 57516850—

Reaction Conditions

Temperature60 °C

Reaction Steps

Compound 22 (1.2 eq) is slurried in toluene (2.5 vol) and the mixture heated to 60° C. SOCl2 (1.4 eq) is added via addition funnel. The toluene and SOCl2 are distilled from the reaction mixture after 30 minutes. Additional toluene (2.5 vol) is added and distilled again.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08124781B2
Source datasetuspto-grants-2012_02
ORD IDord-f3cdca6516d84f069702fc542293eb22
Source noteuspto-grants-2012_02