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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 716615Generated: October 29, 2026

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

https://huagongshe.com/reaction/716615

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

1-(2,2-difluoro-1,3-benzodioxol-5-yl)-cyclopropanecarboxylic acid (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 numberUS09192606B2
Source datasetuspto-grants-2015_11
ORD IDord-5b4d5db001af4bb2bb0aa66fe357455a
Source noteuspto-grants-2015_11