Ethyl 8-(benzyloxy)-2-methylimidazo[1,2-A]pyridine-3-carboxylate → Ethyl 8-hydroxy-2-methylimidazo[1,2-a]pyridine-3-carboxylate

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Reaction Steps

31.45 g (101.3 mmol) of ethyl 8-(benzyloxy)-2-methylimidazo[1,2-a]pyridine-3-carboxylate were dissolved in 2 l of ethyl acetate, 3.15 g of 10% Pd/carbon were added and the mixture was stirred at RT and atmospheric pressure with hydrogen for 5 h. The mixture was filtered through kieselguhr, the filter cake was washed thoroughly with ethyl acetate/methanol and the filtrate was evaporated to dryness. This gave 21.94 g of the target compound (98% of theory, purity 99%).

Provenance & Evidence