反应详情

A solution of 5.3 g (22.7 mmol) 2-bromo-4-nitro-pyridin-3-ol in 100 ml MeOH:THF=1:2 is hydrogenated in the presence of 0.5 g Pt/C (5%, Engelhard 4709). The reaction mixture is filtered (2 glass fiber filters used) and the filtrate is concentrated in vacuo to afford the crude title compound as a brown solid.

1. filtrationThe reaction mixture is filtered (2 glass fiber filters used)
2. concentrationthe filtrate is concentrated in vacuo