18274-82-3Relevant articles and documents
Binuclear half-sandwich ruthenium(II) Schiff base complexes: Synthesis, characterization, DFT study and catalytic activity for the reduction of nitroarenes
Nandhini, Raja,Krishnamoorthy, Bellie Sundaram,Venkatachalam, Galmari
, (2019/11/02)
The binuclear ruthenium(II) p-cymene complexes containing Schiff base ligands of general composition [(Ru(p-cymene)Cl)2L1-6] (1-6) have been synthesized. The complexes were characterized by analytical and spectral (FT?IR, UV–Vis & 1H NMR) methods. The molecular structure of the representative complex [(Ru(p-cymene)Cl)2(L6)] (6) was determined by single-crystal X-ray diffraction and density functional theory (DFT) calculations. Further, these half-sandwich ruthenium complexes are active catalysts for the mild hydrogenation of nitroarenes to aromatic anilines in the presence of NaBH4 in ethanol. The most efficient catalyst 6, was found be compatible with nitroarenes of various functional groups.
A versatile synthesis of bis[2-(2'-hydroxylphenyl)benzoxazole] derivatives as zinc sensors
Wang, Junfeng,Pang, Yi
, p. 10208 - 10212 (2013/09/02)
A versatile synthetic route has been developed to prepare 2, 5-bis(benzoxazole-2-yl)benzene-1,4-diol derivatives 2. Although one of the derivatives (2b) has recently been shown to exhibit an excellent response to Zn2+ cations, the low yielding synthetic route will likely prevent its wide application. This report describes an improved synthetic procedure to obtain 2, thereby making this class of compounds available for biologically relevant studies. An effective synthesis has been developed for 2-aminophenol derivative 6, which bears a carboxylate group in the desired position. The strategy allows construction of bis(benzoxazole) compound 5, where the built-in ester group can be easily converted to either a hydroxymethyl or a bromomethyl group to introduce the zinc-chelating ligand. The Royal Society of Chemistry 2013.
