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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1071983Generated: October 27, 2026

Phosphorus oxychloride → 2-Chloro-4-methyl-5-nitropyridine

https://huagongshe.com/reaction/1071983

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
ReactantHCID 178429283HCID 178429283—
Product2-Chloro-4-methyl-5-nitropyridineHCID 345364—

Reaction Conditions

Temperature100 °C

Reaction Steps

22.3 g of 2-hydroxy-4-methyl-5-nitropyridine and 170 ml of POCl3 are mixed together and heated at 100° C. for 3 hours. The cooled reaction medium is poured onto ice to yield a beige precipitate of 2-chloro-4-methyl-5-nitropyridine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06908922B2
Source datasetuspto-grants-2005_06
ORD IDord-4137dcf5574f483eb65783e0b5a270d8
Source noteuspto-grants-2005_06