32349-49-8Relevant academic research and scientific papers
Ruthenium-Catalyzed Dehydrogenation Through an Intermolecular Hydrogen Atom Transfer Mechanism
Huang, Lin,Bismuto, Alessandro,Rath, Simon A.,Trapp, Nils,Morandi, Bill
supporting information, p. 7290 - 7296 (2021/03/01)
The direct dehydrogenation of alkanes is among the most efficient ways to access valuable alkene products. Although several catalysts have been designed to promote this transformation, they have unfortunately found limited applications in fine chemical synthesis. Here, we report a conceptually novel strategy for the catalytic, intermolecular dehydrogenation of alkanes using a ruthenium catalyst. The combination of a redox-active ligand and a sterically hindered aryl radical intermediate has unleashed this novel strategy. Importantly, mechanistic investigations have been performed to provide a conceptual framework for the further development of this new catalytic dehydrogenation system.
Palladium-Catalyzed Synthesis of α-Diimines from Triarylbismuthines and Isocyanides
Kobiki, Yohsuke,Kawaguchi, Shin-Ichi,Ogawa, Akiya
, p. 3490 - 3493 (2015/07/28)
In this study, we report a highly selective coupling reaction between triarylbismuthines and isocyanides using palladium diacetate as the catalyst, affording α-diimines, with the formation of three C-C bonds. Among several aryl sources (Ar-YLn: Y = B, Sn, Pb, Sb, Bi, I), only triarylbismuthines successfully undergo coupling with isocyanides to selectively afford α-diimines. The coupling reaction exhibits the advantages of high atom economy and convenient operation, with no need for any additive.
Bio active mixed ligand complexes of Cu(II), Ni(II) and Zn(II): Synthesis, spectral, XRD, DNA binding and cleavage properties
Raman, Natarajan,Mahalakshmi, Rajkumar
, p. 157 - 163 (2014/01/17)
The paper presents the synthesis of complex combinations of Cu(II), Zn(II) and Ni(II) with Schiff bases obtained by the condensation reaction of diphenylglyoxal with 1-amino-4-nitrobenzene (L1)/1-amino-4- chlorobenzene (L2)/p-anisidi
Stereoselective synthesis of cis- and trans-4-acyl-β-lactams from vicinal diketones and ketoaldehydes
Wang, Zhixin,Xu, Jiaxi
experimental part, p. 1711 - 1717 (2012/05/19)
4-Acyl-β-lactams are important synthetic intermediates in both pharmaceutical and organic chemistry. Cis- and trans-4-acyl-β-lactams were synthesized stereoselectively from vicinal diketones via the formation of bulky and less bulky diimines as key interm
Electronically tunable N-heterocyclic carbene ligands: 1,3-diaryl vs. 4,5-diaryl substitution
Ogle, James W.,Miller, Stephen A.
scheme or table, p. 5728 - 5730 (2010/01/31)
The catalytic activity of iridium-mediated transfer hydrogenation is readily tuned by electronic variation of the ligated tetraaryl-N-heterocyclic carbene and the installation of electron donating groups on the N-aryl substituents is more important than o
DNA-interaction and in vitro antimicrobial studies of some mixed-ligand complexes of cobalt(II) with fluoroquinolone antibacterial agent ciprofloxacin and some neutral bidentate ligands
Patel,Chhasatia,Gandhi
supporting information; experimental part, p. 2870 - 2873 (2009/12/31)
Six new mixed-ligand complexes of Co(II) with ciprofloxacin (Cip) and neutral bidentate ligands have been synthesized and characterized. Binding and cleavage of DNA with the complex were investigated using spectroscopic method, viscosity measurements and gel electrophoresis techniques. Antibacterial activity has been assayed against two Gram(-ve) and three Gram(+ve) microorganisms using the doubling dilution technique.
Synthesis of electronically diverse tetraarylimidazolylidene carbenes via catalytic aldimine coupling
Ogle, James W.,Zhang, Jubo,Reibenspies, Joseph H.,Abboud, Khalil A.,Miller, Stephen A.
supporting information; experimental part, p. 3677 - 3680 (2009/07/01)
(Chemical Equation Presented) A new method for synthesizing symmetrical N-heterocyclic imidazolium salts is described. Catalytic coupling of aldimines with cyanide followed by oxidation gives α-diketimines, which can then be cyclized with formaldehyde in
Microwave-assisted efficient synthesis of diimines in dry media using silica gel supported sodium hydrogen sulfate as reusable solid support
Bazgir, Ayoob
, p. 1 - 2 (2007/10/03)
A simple and efficient method for synthesis of diimines using silica gel supported sodium hydrogen sulfate as reusable solid support in solvent-free conditions under microwave irradiation is described.
A novel decyanogenative coupling of α-cyanoimines mediated by samarium. A facile route to α-diketimines
Thakur, Ashim J.,Prajapati, Dipak,Sandhu, Jagir S.
, p. 102 - 103 (2007/10/03)
Conversion of α-cyanoimines 1 into α-diketimines 2 has been achieved successfully by using samarium diiodide in dry tetrahydrofuran in high yields without formation of anilinoanil 3, 1,2-diamines 4 or anilides 5.
Formation of benzil diimines by microwave-assisted reaction of benzil with aromatic amines on alumina surface without solvent
Singh,Mahajan
, p. 410 - 411 (2007/10/03)
The microwave-assisted solvent-free reaction of benzil with aromatic amines (in 1 : 2 molar ratio) on an alumina surface for 4 min affords benzil diimines (1,2,3,4-tetraaryl-1,4-diaza-1,3-butadienes).
