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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2272963Generated: October 30, 2026

Thionyl Chloride → HCID 71765536, compound

https://huagongshe.com/reaction/2272963

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
ReactantHCID 89826348HCID 89826348—
SolventDichloromethaneHCID 6344—
ProductHCID 71765536HCID 71765536—

Reaction Steps

82 mg (0.252 mmol) 2-Hydroxymethyl-6-(4-trifluoromethoxy-phenyl)-5H-pyrazolo[1,5-a]pyrazin-4-one are treated with thionyl chloride in dichloromethane similar to WO2010/043676 (example G02) to give 2-chloromethyl-6-(4-trifluoromethoxy-phenyl)-5H-pyrazolo[1,5-a]pyrazin-4-one as pale pink crystals; HPLC/MS 1.91 min (C), [M+H] 344;

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09120805B2
Source datasetuspto-grants-2015_09
ORD IDord-12ded8ce0daa42f0864b7342297b9c15
Source noteuspto-grants-2015_09