212787-17-2Relevant articles and documents
Selective Reduction of an Aromatic Nitro Group to an Azoxy Unit in the Presence of an Aliphatic Nitro Group
Siemeling, Ulrich,Tuerk, Thomas,Vorfeld, Udo,Fink, Heinrich
, p. 419 - 423 (2007/10/03)
Chemoselective reduction of 1-nitro-2-(2-nitro-2-methylpropyl)-benzene to 2,2′-di-(2-nitro-2-methylpropyl)-azoxybenzene was achieved with sodium borohydride in methanol in the presence of substoichiometric amounts of bismuth, whereas reduction with zinc in hydrochloric acid gave a mixture of the latter, 1-amino-2-(2-amino-2-methylpropyl)-benzene, and 3,3-dimethyl-3,4- dihydrocinnoline, and showed poor reproducibility. The crystal structure of the azoxybenzene was determined by single-crystal X-ray diffraction.