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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 352553Generated: October 31, 2026

Chlorosulfonic acid → HCID 22712121, compound

https://huagongshe.com/reaction/352553

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChlorosulfonic acidHCID 24638—
ReactantHCID 22712096HCID 22712096—
SolventDichloromethaneHCID 6344—
ProductHCID 22712121HCID 2271212170%

Reaction Steps

3,5-Dichloro-2,6-difluoro-4-(4-methoxyphenoxy)pyridine (1.5 g, 4.9 mmol) and chlorosulfonic acid (0.39 ml, 5.8 mmol) were stirred in 5 ml of methylene chloride overnight. The resulting solid-was filtered and washed with cold CH2Cl2. Compound 43a was obtained as solid in 70% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06747048B2
Source datasetuspto-grants-2004_06
ORD IDord-944459a6b15d4986bf8ac6088e6b5b6c
Source noteuspto-grants-2004_06