Iron powder reduction nitro

You can take a little water phase, blow dry to see if you want, water solubility should be oxidized; and this material room may be oxidized, it is easy to break

Palladium carbohydrate, methanol reflux, reducing nitro

Phenol is acidic, amine is alkaline, and it is a neutral compound. It may be very solubility in water, it is washed away

Laboratory without hydrogen can be used with palladium carbon / formate

I am doing almost the same reducing reaction, I feel that the nitro and hydroxy group are conjugated, not so easy to restore, palladium carbohydrate hydrazine is not necessarily, waiting for the landlord to solve it, exchange.

With iron powder, acetic acid / ethanol (1: 1), 90 degrees, 3h, this condition is very good!

Is the sodium carbonate?Why don't you use sodium bicarbonate,

That, try to buy some hydrate.