Organocatalytic oxidation of substituted anilines to azoxybenzenes and nitro compounds: mechanistic studies excluding the involvement of a dioxirane intermediate
作者:Errika Voutyritsa、Alexis Theodorou、Maroula G. Kokotou、Christoforos G. Kokotos
DOI:10.1039/c6gc03174a
日期:——
An organocatalytic and environmentally friendly approach for the selective oxidation of substituted anilines was developed. Utilizing a 2,2,2-trifluoroacetophenone-mediated oxidation process, substituted anilines can be transformed to azoxybenzenes, while simple treatment...
Ruthenium Nanoparticle‐Catalyzed, Controlled and Chemoselective Hydrogenation of Nitroarenes using Ethanol as a Hydrogen Source
作者:Ju Hyun Kim、Ji Hoon Park、Young Keun Chung、Kang Hyun Park
DOI:10.1002/adsc.201200356
日期:2012.9.17
This communication describes a ruthenium nanoparticle‐catalyzed reduction of nitroarenes giving azoxyarenes, azoarenes, or anilines in good to excellent yields usingethanol as a hydrogensource.
SN2 at nitrogen: The reaction of N-(4-cyanophenyl)-O-diphenylphosphinoylhydroxylamine with N.Methylaniline. A model for the reactions of ultimate carcinogens of aromatic amines with (bio) nucleophiles
The model reaction of 5 with 6 to give 7 and 8 (t-90%) follows the SN2 mechanism. From this result and from product studies it is concluded that the reactions of the ultimate carcinogen 1 with 6 and deoxyguanosine (dG) (and hence d other ultimate carcinogens of aromatic amines with bionucleophiles) follow the same mechanism.
5与6生成7和8(t-90%)的模型反应遵循S N 2机理。从该结果和产品研究得出的结论是,最终致癌物1与6和脱氧鸟苷(dG)(以及其他d最终的芳香胺与生物亲核剂)的反应遵循相同的机理。
Reduction of aromatic nitro compounds with phosphine
作者:A.C. Bellaart
DOI:10.1016/s0040-4020(01)96949-2
日期:1965.1
The reduction of 1- and 2-nitronaphthalene and of some mono- and dinitro-biphenyls with phosphine was carried out under the conditions described by Buckler.1 Reduction of 1-nitro-naphthalene did not yield any crystalline product while reduction of 2-nitronaphthalene yielded benzo[f]naphtho[2,1-c]cinnoline-N-oxide together with 2,2′-azoxynaphthalene. The mononitro-biphenyls and 4,4′-dinitrobiphenyl were