Lithium Hydroxide → Lithium 6-fluoropyrazolo[1,5-a]pyrimidine-3-carboxylate

Participants

Reaction Steps

A suspension of ethyl 6-fluoropyrazolo[1,5-a]pyrimidine-3-carboxylate (512 mg, 2.45 mmol) and lithium hydroxide (61.5 mg, 2.57 mmol) in water (1 ml), MeOH (1 ml) and THF (1 ml) was irradiated to 100° C. for 10 min in the microwave. The reaction mixture was concentrated under vacuum, azeotroping with toluene (10 ml) to leave the title compound as a yellow powder (497 mg). This crude material was used directly in the subsequent reactions.

Provenance & Evidence