Trityl chloride → 3-(6-bromopyridin-2-yl)-1-trityl-1H-pyrazolo[3,4-b]pyridine

Participants

Reaction Conditions

Reaction Steps

A stirred suspension of 3-(6-bromo-2-pyridyl)-1H-pyrazolo[5,4-b]pyridine (3.00 g, 10.90 mmol) in dry DMF (30.00 mL) was cooled in an ice-bath. Sodium hydride (479.6 mg, 11.99 mmol) was added in one portion and the resulting mixture changed to a yellow solution and was stirred at 0° C. for 30 minutes. Trityl chloride (3.189 g, 11.44 mmol) was added in one portion and the resulting yellow suspension was stirred at RT for 60 minutes, by which time it was a bright yellow suspension. Analysis by LCMS showed presence of desired product.

Provenance & Evidence