By reduction of nitro groups bound to acyclic carbon atoms or to

Official title: by reduction of nitro groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings {in presence of hydrogen-containing gases and a catalyst}

C07C209/34 (By reduction of nitro groups bound to acyclic carbon atoms or to) appears on 15 US grants and 13 published applications in this corpus.