反应详情

A solution of 7-hydroxyimidazo[1,2-a]pyridine-3-carboxylate (414 mg, 2.01 mmol) in a 2:1:1 THF/ethanol/water mixture (36 mL) was treated at ambient temperature with lithium hydroxide monohydrate (2.1 equivalents). The reaction mixture was stirred at ambient temperature overnight. To the reaction were then added another 2.1 equivalents of lithium hydroxide monohydrate and stirring continued for 72 hours. After removal of the volatiles the mixture was diluted with water, cooled in an ice bath, and the pH adjusted to 4 with aqueous 6N hydrochloric acid. The resulting white precipitate was isolated and dried to afford the desired product (358 mg).

1. stirringstirring
2. waitcontinued for 72 hours
3. customAfter removal of the volatiles the mixture
4. additionwas diluted with water
5. temperaturecooled in an ice bath
6. customThe resulting white precipitate was isolated
7. customdried