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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2179992Generated: October 30, 2026

Phosphorus oxychloride → HCID 22490054, compound

https://huagongshe.com/reaction/2179992

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
ReactantHCID 22490063HCID 22490063—
SolventDimethylformamideHCID 6228—
ProductHCID 22490054HCID 22490054—

Reaction Steps

The product from step 2 (444 mg) is dissolved in POCl3 (1 mL) and DMF (N,N-dimethylformamide, 15 mL), and the resulting solution is stirred at 60° C. for 5 hours. The reaction mixture is cooled, and the volatiles removed under reduced pressure. Flash chromatography (30% ethyl acetate in hexanes) affords 2-chloro-5-(2,4-dimethoxy-phenyl)-3,6-dimethyl-pyrazine as a clear oil. MS: 279.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06887875B2
Source datasetuspto-grants-2005_05
ORD IDord-de6c8562343e48a597797ef52b1f626e
Source noteuspto-grants-2005_05