Abstract
Nitroaromatic compounds are easily reduced by hydrogen transfer from 2-propanol in the presence of [Rh(NBD)L 2] + (NBD = norbornadiene and L = arylphosphines). The effects of the concentrations of base and rhodium complex, and the presence of substituents in the phosphine ligand on the rate and selectivity of the reaction are studied here. A high catalyst concentration favours both rate and selectivity, while a high base concentration increases the rate but decreases the selectivity of the reaction toward the production of aniline.
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