Benzyl Bromide → Benzyl 2-(4-chlorophenyl)-2-[(1,2,4-triazol-1-yl)methyl]butyrate

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Reaction Steps

To a 300 mL flask stirring under nitrogen was charged 4.19 g (0.015 mole) of 2-(4-chlorophenyl)-2-[(1,2,4-triazol-1-yl)methyl]-butanoic acid in 75 mL of methyl ethyl ketone. To the slurry was added 2.83 g (0.0157 mole) of potassium carbonate and the mixture was heated to reflux. After 30 minutes, 2.56 g (0.01575 mole) of benzyl bromide was added and the mixture was stirred at reflux for 2 hours then at 50° C. for 12 hours. After monitoring by GLC showed the consumption of starting material, the reaction was quenched by adding 20 mL of saturated sodium bicarbonate and 100 mL of ether. The phases were separated and the ether phase was washed with saturated sodium bicarbonate (2×50 mL) then with 50 mL of brine, dried and concentrated, giving 4.26 g (77% yield) of a thick oil, Example 177 of Table 1.

Provenance & Evidence