215367-19-4Relevant articles and documents
Magnetically‐recoverable Schiff base complex of Pd(II) immobilized on Fe3O4@SiO2 nanoparticles: an efficient catalyst for the reduction of aromatic nitro compounds to aniline derivatives
Azadi, Sedigheh,Esmaeilpour, Mohsen,Sardarian, Ali Reza
, p. 809 - 821 (2021)
Fe3O4@SiO2/Schiff base/Pd(II) is reported as a magnetically recoverable heterogeneous catalyst for the chemoselective reduction of aromatic nitro compounds to the corresponding amines through catalytic transfer hydrogenation (CTH). In this regard, a small amount of the nanocatalyst (0.52?mol% Pd) and hydrazine hydrate, showing safe characteristics and perfect ability as the hydrogen donor, were added to the nitro substrates. The experiments described the successful reduction of aromatic nitro compounds with good to excellent yields and short reaction times. The catalyst, due to its magnetic property, could be simply separated from the reaction mixture by a permanent magnet and reused in seven consecutive reactions without considerable loss in its activity. Moreover, the leaching of Pd was only 3.6% after the seventh run. Thus, the most striking feature of this method is to use a small amount of the magnetic nanocatalyst along with a cheap and safe hydrogen source to produce the important amine substances selectively, which makes the method economical, cheap, environmentally friendly, and simple. Graphic abstract: [Figure not available: see fulltext.]
Solvent-free oxidation of cyclohexane over covalently anchored transition-metal salicylaldimine complexes to α-zirconium phosphate using tert-butylhydroperoxide
Khare, Savita,Shrivastava, Priti
, p. 279 - 289 (2016)
Heterogeneous catalysts were prepared by covalent bonding of transition-metal salicylaldimine complex to α-zirconium phosphate, abbreviated as {α-ZrP.M(salicylaldimine) where M = Co, Mn and Cu}. The resulting compounds were characterized by BET surface ar
Syntheses, structures and immobilization of ruthenium complexes bearing N,O-Schiff-base or N,N′-diamine ligands functionalized with alkoxysilyl groups
Jia, Ai-Quan,Shi, Li-Miao,Wu, Fule,Xin, Zhi-Feng,Zhang, Qian-Feng
, p. 33 - 43 (2018)
Condensation of γ-aminopropyltriethoxysilane and substituted salicylaldehydes in ethanol afforded three new Schiff-base compounds [(EtO)3Si(CH2)3N=CHArOH] (Ar = C6H4, L1H; C6H3(4
Photo-and electroluminescence in thin films of covalently bonded azomethin-zinc/SiO2 hybrid materials
Wei, Chenyang,Jiang, Peng,Huang, Weimin,He, Qianjun,Cui, Xiangzhi,Shi, Jianlin
, p. 8510 - 8512 (2011)
We report the design and chemical synthesis of covalently bonded azomethin-zinc/SiO2 hybrid transparent thin films with photoluminescent and electroluminescent emissions in condensed solid state by a sol-gel approach. The Royal Society of Chemi
Synthesis and characterization of nanocomposite NiFe2O4@SalenSi and its application in efficient removal of ni(II) from aqueous solution
Babadi, Narjes,Tavakkoli, Haman,Afshari, Mozhgan
, p. 77 - 88 (2018)
In this work, nano ferrite spinel NiFe2O4 was synthesized by sol-gel method and characterized by SEM, XRD, FT-IR, and VSM. In second step Schiff base made from salicylaldehyde and amino propyl triethoxy silane was used for modification of the synthesized
Fluorescence turn-on of salicylaldimine ligands by co-ordination with magnesium and amines
Gao, Zideng,Feng, Haojie,Wang, Shunyi,Huang, Yuanfang,Ren, Xueqin,Pang, Long,Hu, Shuwen
, p. 18513 - 18516 (2018)
A new fluorescence enhancement mechanism based on Schiff base ligand and magnesium complexation is established. The co-ordination number of the Schiff base ligand-magnesium complex (2:1) can be tuned to 1:1 in the presence of amines to induce significant