Bromine → 2-Bromo-5-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy]phenol

Participants

Reaction Steps

In 150 ml of chloroform, 5.5 g of 2-(3-hydroxyphenoxy)-3-chloro-5-trifluoromethyl pyridine was dissolved and then, 3.5 g of bromine was added dropwise to the solution at a temperature of 10° to 15° C. After the reaction, the reaction product was washed with water, with a sodium bicarbonate aqueous solution, with a saturated sodium thiosulfate solution and then, with water and dried over anhydrous sodium sulfate. Chloroform was distilled off under a reduced pressure and the resulting crystals were washed with hexane and dried to obtain 3.0 g of 2-(3-hydroxy-4-bromophenoxy)-3-chloro-5-trifluoromethyl pyridine having a melting point of 124° to 127° C.

Provenance & Evidence