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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1197860Generated: November 1, 2026

Acetic Acid → 2-Chloro-4-ethyl-5-fluoropyrimidine

https://huagongshe.com/reaction/1197860

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant2,4-Dichloro-5-fluoropyrimidineHCID 250705—
SolventHydrochloric AcidHCID 313—
Product2-Chloro-4-ethyl-5-fluoropyrimidineHCID 19074928—

Reaction Conditions

Temperature100 °C

Reaction Steps

The product of part (i) (3.2 g) was dissolved in acetic acid (25 ml) and diluted with 5N HCl (10 ml). After heating the mixture at 100° C. for 16 hours the mixture was cooled and partitioned between water (30 ml) and dichloromethane (45 ml). The dichloromethane layer was separated, dried and concentrated under reduced pressure to give an oil. The title compound was isolated by chromatography on silica gel using dichloromethane as the eluent. The product was characterised by 1H-NMR and mass spectrometry (yield=350 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05278175
Source datasetuspto-grants-1994_01
ORD IDord-e2ac9bc9ddae4580ae6584d4f520c031
Source noteuspto-grants-1994_01