5307-14-2Relevant articles and documents
Protonation of Cationic Bases in Perchloric Acid: Establishment of the H+ Scale in 0-11 M Perchloric Acid
Lovell, Michael W.,Vogt, Brian S.,Schulman, Stephen G.
, p. 1885 - 1888 (1984)
The protonation of several monocationic bases in perchloric acid was studied with UV-visible absorption spectroscopy.The H+ scale in perchloric acid was established by using primary amine cationic bases as indicators.It was found that the H+ scale in perchloric acid is more negative than in sulfuric acid.The acid-dissociation constants for compounds studied in both acids were found to be in reasonably good agreement with each other.
Gold supported on titania for specific monohydrogenation of dinitroaromatics in the liquid phase
Liu, Shuang-Shuang,Liu, Xiang,Yu, Lei,Liu, Yong-Mei,He, He-Yong,Cao, Yong
, p. 4162 - 4169 (2014/09/29)
Liquid-phase selective monohydrogenation of various substituted dinitroaromatics to the corresponding valuable nitroanilines was investigated on gold-based catalysts. Special attention was paid to the effect of Au particle size on this monoreduction reaction. Interestingly, TiO2 supported gold catalysts containing a relatively larger mean Au particle size (>5 nm) showed far superior chemoselectivity for specific mono-hydrogenation of dinitroaromatics, with the highest performance attainable for the catalyst bearing Au particles of ca. 7.5 nm. Results in the intermolecular competitive hydrogenation showed that the intrinsic higher accumulation rates of the desired nitroanilines associated with the catalyst possessing larger Au particles were responsible for the high chemoselectivity observed. the Partner Organisations 2014.
Selective partial hydrogenation of dinitrobenzenes to nitroanilines catalyzed by Ru/C
Hou, Jie,Ma, Yonghuan,Li, Yuhan,Guo, Fang,Lu, Lianhai
scheme or table, p. 974 - 975 (2009/04/06)
Ru/C was found to be a highly effective catalyst for the selective partial hydrogenation of a range of dinitrobenzenes to their corresponding nitroanilines with excellent selectivity under mild conditions. Furthermore, the effect from other substitute groups of dinitrobenzenes on partial hydrogenation was also explored in this study. Copyright