convergent paired electrochemical method was developed for the synthesis of azoxy and azocompounds starting from the corresponding nitroarenes. We propose a unique mechanism for electrosynthesis of azoxy and azocompounds. We find that both anodic and cathodic reactions are responsible for the synthesis of these compounds. The synthesis of azoxy and azo derivatives have been successfully performed in an undivided
REDUCTION OF AROMATIC AND ALIPHATIC NITRO COMPOUNDS BY SODIUM HYDROGEN TELLURIDE
作者:Atsuhiro Osuka、Hirohito Shimizu、Hitomi Suzuki
DOI:10.1246/cl.1983.1373
日期:1983.9.5
Various nitro compounds were effectively reduced by sodium hydrogen telluride in good yields. Thus, reductive conversion of unhindered nitrobenzenes to azoxybenzenes, sterically hindered nitrobenzenes to anilines, nitroalkanes to dimer of nitrosoalkanes, and vicinal-dinitroalkane to olefin was achieved.
Cadmium Chloride-Zinc Catalysed Selective Reduction of Nitro Aromatics to Azoxy Compounds
作者:Bipul Baruah、Anima Boruah、Dipak Prajapati、Jagir S. Sandhu
DOI:10.1246/cl.1996.351
日期:1996.5
Treatment of aromaticnitrocompounds with cadmium chloride-metallic zinc combination systems has been shown to display a good reaction selectivity in the formation of symmetrical azoxycompounds in high yields.
Selective reduction of aromatic nitroso compounds with baker's yeast under neutral condition
作者:Woonphil Baik、Jong Uk Rhee、Sang Hwi Lee、Nam Ho Lee、Byeong Hyo Kim、Kyung Soon Kim
DOI:10.1016/0040-4039(95)00398-v
日期:1995.4
Aromaticnitrosocompounds containing halogen and other labile substituents were selectively and rapidly reduced to their corresponding amino derivatives in good yields using Bakers' Yeast at 80 °C.
Photochemistry of<i>p</i>-Nitroacetophenone in 2-Propanol
作者:Yuh-Nong Lin、Guang-Yan Jeng、Tung-Tan Chan、Giann-Feng Yen、Yin-Gang Wong
DOI:10.1002/jccs.199800050
日期:1998.4
AbstractUpon irradiation in 2‐propanol, p‐nitroacetophenone 1 was reduced via the triplet state to p‐hydroxyaminoacetophenone 5 which was further reduced to p‐aminoacelophenone 2 and 4,4′‐diacetylazobenzene 4. Similar irradiation of 5 also gave 2 and 4, and its oxidation by oxygen gave 4,4′‐diacetylazoxybenzene 3. Photolysis of monomeric p‐nitrosoacetophenone 6 afforded acetophenone and 3 that were not produced during the irradiation of 1. Possible photoreaction pathways were discussed on the basis of published mechanisms.