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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 56706Generated: October 25, 2026

Einecs 211-027-4 → 5-Chloro-4-[5-chloro-2-(difluoromethyl)phenyl]pyridin-2(1H)-one

https://huagongshe.com/reaction/56706

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEinecs 211-027-4HCID 69401—
Reactant5-Chloro-4-[5-chloro-2-(difluoromethyl)phenyl]-2-methoxypyridineHCID 117604825—
Product5-Chloro-4-[5-chloro-2-(difluoromethyl)phenyl]pyridin-2(1H)-oneHCID 117605586—

Reaction Steps

305 mg (purity 77%, 0.77 mmol) of 5-chloro-4-[5-chloro-2-(difluoromethyl)phenyl]-2-methoxypyridine and 20 eq. of pyridinium chloride were reacted according to General Method 3A. After work-up, the crude product was purified by preparative HPLC (Reprosil C18, water/acetonitrile gradient). Yield: 179 mg (80% of theory)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434690B2
Source datasetuspto-grants-2016_09
ORD IDord-b098b5f42e87484490369782a0a6d1f2
Source noteuspto-grants-2016_09