Trifluoroacetic acid → 6-Bromo-2-(4-piperidinyl)-1,8-naphthyridine

Participants

Reaction Steps

A solution of bromide 3-4 (3.5 g, 8.92 mmol), CH2Cl2 (20 ml) and TFA (10 ml) was stirred for 1.0 h. The reaction was concentrated and then azeotroped with toluene. The residue was dissolved in 1N NaOH and then extracted with CHCl3. The CHCl3 portion was washed with brine, dried (MgSO4) and concentrated providing amine 3-5 as a brown solid.

Provenance & Evidence