Sodium Carbonate → 4-(2-Methyl-6-phenyl[1,2,4]triazolo[1,5-a]pyrimidin-5-yl)benzaldehyde

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Reaction Conditions

Reaction Steps

To a mixture of 6.90 g 5-chloro-2-methyl-6-phenyl[1,2,4]triazolo[1,5-a]pyrimidine and 4.65 g 4-formylphenylboronic acid in 100 ml 1,2-dimethoxyethane are added 55 ml of a 10% w/w sodium carbonate solution and 1.03 g dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium (II). The resulting mixture is heated to 90° C. under an inert gas atmosphere for 18 h. The work up is performed by diluting the reaction mixture with water and dichloromethane, separating the phases and extraction of the aqueous phase with dichloromethane. The combined organic layers are dried over sodium sulphate and the solvent is evaporated. The residue is purified by chromatography on silica gel (dichloromethane/methanol) to yield the desired product.

Provenance & Evidence