93445-12-6Relevant articles and documents
Magnetic NiO nanoparticles confined within open ends MWCNTs: A novel and highly active catalyst for hydrogenation and synthesis of imines
Chen, Gangquan,Gao, Wenbin,Wang, Xuejun,Huo, Hongfei,Li, Wenzhu,Zhang, Le,Li, Rong,Li, Zuixiong
, p. 58805 - 58812 (2016/07/06)
A new nanocatalyst has been synthesized by confining magnetic nickel nanoparticles within carbon nanotubes (CNTs) and characterized by XRD, TEM, Raman and VSM. The character of the nanocatalyst passivated with a gas mixture was that it can be stored safely in air below 150 °C and needs no activation prior to use. In the catalytic test, a nickel oxide nanocatalyst confined inside the Multi-walled carbon nanotubes nanochannels (NiO/MWCNTs-in) was found to be a highly efficient and reusable catalyst for the reduction of various aromatic nitro compounds to various aromatic amines, the conversion and selectivity of which were almost up to 100% and exceed 80%. The prominent merit of the catalyst is that the overall formation rate of product inside the nanotubes exceeds that outside. Moreover, it is inexpensive, and could be prepared and scaled up easily. Besides, it can be simply separated from the reaction mixtures by an external magnetic field As a result of the possible confinement effect of CNTs, the employment of the CNTs channels as nanoreactors for catalysis may provide opportunities for the development of new heterogeneous catalysts.
Synthesis and biological evaluation of hydroxyl-substituted Schiff-bases containing ferrocenyl moieties
Chen, Wansong,Ou, Weizhu,Wang, Liqiang,Hao, Yuanqiang,Cheng, Jiashun,Li, Juan,Liu, You-Nian
, p. 15678 - 15686 (2013/11/06)
Three new hydroxyl-substituted Schiff-bases containing ferrocenyl moieties were synthesized, and their antioxidant and anticancer activities were evaluated. Among the synthesized hydroxyl-substituted Schiff-bases, compound 1 containing both ferrocenyl and o-dihydroxyl groups exhibits the highest antioxidant and anticancer activities. Flow cytometric analysis showed that compound 1 is capable of disturbing the cancer cell cycle and inducing more cells to be arrested in G2 phase. The excellent biological activities of compound 1 are attributed to the presence of both ferrocenyl and o-dihydroxyl groups. The ferrocenyl moiety has dual functions in compound 1, i.e., increasing the lipophilicity and lowering the redox potentials of o-dihydroxyl groups. In addition, compound 1 could reversibly bind with HSA mainly via a mechanism involving the formation of complexes, in which hydrophobic interaction is the main acting force. Thus, compound 1 containing both ferrocenyl and o-dihydroxyl groups is a potential antioxidant with anticancer activity. This journal is The Royal Society of Chemistry 2013.
MODEL STUDIES FOR INSECT PROTEIN SCLEROTIZATION: OXIDATIVE LOSS OF THE SIDE CHAIN FROM 4-SUBSTITUTED CATECHOLS
Pyne, Stephen G.,Truscott, Roger J. W.,Maxwell, Karin,Morales, M. Carmen,Walsh, Bernadette C.,Wynn, Barbra L.
, p. 661 - 670 (2007/10/02)
The oxidation of several 4-substituted catechols in aqueous solution, pH7 in the presence of aniline results in the formation of 4,5-dianilino-1,2-benzoquinone 2 and the anil of 2 (3).The C-4 substituent is efficiently cleaved and mechanisms are proposed to account for this phenomenon based on HPLC and GC studies and the formation of N-methylaniline when these reactions were performed in the presence of sodium cyanoborohydride.The evidence suggests that the initial step involves the addition of aniline to the catechol C-4 side chain.
