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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1450065Generated: October 25, 2026

Water → 3,4-Dichloro-5-fluoro-2-picoline

https://huagongshe.com/reaction/1450065

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTert-Butyl hypochloriteHCID 521297—
Reactant4-Chloro-5-fluoro-2-methylpyridineHCID 19691410—
SolventChloroformHCID 6212—
Product3,4-Dichloro-5-fluoro-2-picolineHCID 19691245—

Reaction Conditions

Temperature0 °C

Reaction Steps

To 0.87 g (6 mmol) of 4-chloro-5-fluoro-2-picoline, the product of Example 66, in 20 mL of chloroform cooled to -45° C., is added 0.75 mL of t-butylhypochlorite. The reaction mixture is stirred at -45° C. for 2 hours and at 0° C. for 2 hours. The reaction mixture is then poured into water and the resultant aqueous mixture is extracted with methylene chloride. The organic solution is dried over anhydrous magnesium sulfate, filtered, concentrated under reduced pressure and distilled to afford the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05599816
Source datasetuspto-grants-1997_02
ORD IDord-014f44cb018147659fc5b134765083b2
Source noteuspto-grants-1997_02