Abstract
1. The system PdCl2·(N-methyl-2-pyrrolidone)2-NaBH4 catalyzes the reduction of nitro-benzene to aniline under mild conditions, bypassing the, intermediate formation of the partial hydrogenation products. The rate of reducing the nitro group in o-nitrotoluene is 20 times slower than in nitrobenzene. 2. Phenylhydroxylamine, azoxybenzene, and azobenzene are reduced to hydrazobenzene in the presence of the studied catalytic system, which is not hydrogenated further.
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