Hydrochloric Acid → 4-(2-Bromo-phenyl)-2-methylsulfanyl-pyrimidine-5-carboxylic acid

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Reaction Steps

To a solution of 5.10 g (14.4 mmol) 4-(2-bromo-phenyl)-2-methylsulfanyl-pyrimidine-5-carboxylic acid ethyl ester in 10 ml ethanol 10 ml 2N NaOH-solution were added. After stirring for 1 hr. 50 ml H2O and 50 ml CH2Cl2 were added to the yellow solution.The pH of the aqueous phase was adjusted to 1 with 25% HCl the phases separated and the aqueous phase extracted twice with 200 ml CH2Cl2. The combined organic layers were dried (MgSO4), filtrated and evaporated to give 4.60 g (98%) 4-(2-bromo-phenyl)-2-methylsulfanyl-pyrimidine-5-carboxylic acid as a off-white solid.

Provenance & Evidence