Phosphine Ligand‐Free Ruthenium Complexes as Efficient Catalysts for the Synthesis of Quinolines and Pyridines by Acceptorless Dehydrogenative Coupling Reactions
Sign Up to like & getrecommendations! Published in 2019 at "ChemCatChem"
DOI: 10.1002/cctc.201900435
Abstract: A series of phosphine‐free Ru(III)/Ru(II) complexes of NH functionalized N˄N˄N pincer ligands exhibit excellent activity for acceptorless dehydrogenative coupling (ADC) of secondary alcohols with 2‐aminobenzyl or γ‐amino alcohols to quinolines and pyridines. Ru(III) complexes [LRuCl3]… read more here.
Keywords: acceptorless dehydrogenative; iii complexes; pyridin; quinolines pyridines ... See more keywords
Reactions of pyridin-2-ol, pyridin-3-ol, and pyridin-4-ol with pentafluoro- and pentachloropyridine
Sign Up to like & getrecommendations! Published in 2017 at "Chemistry of Heterocyclic Compounds"
DOI: 10.1007/s10593-018-2213-2
Abstract: Reactions of pentafluoro- and pentachloropyridines with pyridin-2-ol, pyridin-3-ol, and pyridin-4-ol are reported. Pyridin-4-ol yields product of attack at the nitrogen atom, while pyridin-3-ol reacts at the oxygen atom. Pyridin-2-ol reacts as an ambident nucleophile, providing… read more here.
Keywords: pentafluoro pentachloropyridine; pyridin pyridin; pyridin pentafluoro; pyridin ... See more keywords
Orange red iridium complexes with good electron mobility and mild OLED efficiency roll-off
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Organometallic Chemistry"
DOI: 10.1016/j.jorganchem.2018.09.008
Abstract: Abstract Two iridium(III) complexes with 1-(3,5-bis(trifluoromethyl)-pyridin-4-yl)isoquinoline (tntpiq) as main ligand, 2-(5-pyridin-4-yl)-1,3,4-oxadiazol-2-yl)phenol (pop) and 2-(5-pyridin-4-yl)-1,3,4-thiadiazol-2-yl)phenol (psp) as ancillary ligands were investigated. Both complexes emit orange red lights with different photoluminescence efficiencies (Ir(tntpiq)2(pop): λem = 585 nm, Φ = 0.41 and Ir(tntpiq)2(psp):… read more here.
Keywords: efficiency roll; orange red; pyridin; efficiency ... See more keywords
The positional isomeric effects induced various phosphorescence: Switchable properties through acid-base vapor stimulation
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Molecular Structure"
DOI: 10.1016/j.molstruc.2019.01.028
Abstract: Abstract Three novel positional isomers, namely (E)-3-(2-chloroimidazo[1,2-a] pyridin-3-yl)- 1-(pyridin-2-yl)prop-2-en-1-one (1), (E)-3-(2-chloroimidazo[1,2-a]pyridin-3-yl)-1- (pyridin-3-yl)prop-2-en-1-one (2) and (E)-3-(2-chloroimidazo[1,2-a]pyridin-3-yl)- 1-(pyridin-4-yl)prop-2-en-1-one (3), were obtained through a mild approach. Powder X-ray diffraction patterns demonstrate their various stacking structures, attributed to positional… read more here.
Keywords: acid base; pyridin; positional isomeric; base vapor ... See more keywords
Supramolecular architectures of Mn(NCS)2 complexes with N'-(1-(pyridin-4-yl)ethylidene)picolinohydrazide and N'-(phenyl(pyridin-4-yl)methylene)isonicotinohydrazide
Sign Up to like & getrecommendations! Published in 2020 at "Polyhedron"
DOI: 10.1016/j.poly.2020.114776
Abstract: Abstract In this work we have synthesized and characterized new mononuclear heteroleptic discrete complexes [Mn(NCS)2(HLI)2(MeOH)2] (1), [Mn(NCS)2(HLI)2(EtOH)2] (2) and [Mn(NCS)2(HLII)2(EtOH)2] (3), fabricated from Mn(NCS)2 and N'-(1-(pyridin-4-yl)ethylidene)picolinohydrazide (HLI) and N'-(phenyl(pyridin-4-yl)methylene)isonicotinohydrazide (HLII) in MeOH or EtOH. All… read more here.
Keywords: pyridin ethylidene; pyridin methylene; phenyl pyridin; ethylidene picolinohydrazide ... See more keywords
Structure determination of a bis[4-(di-n-butylamino)phenyl](pyridin-3-yl)borane tetramer highlighting a unique geometric conformation of the core 16-membered ring.
Sign Up to like & getrecommendations! Published in 2023 at "Acta crystallographica. Section C, Structural chemistry"
DOI: 10.1107/s2053229623002619
Abstract: The tetramer of bis(4-di-n-butylaminophenyl)(pyridin-3-yl)borane [systematic name: 2λ4,4λ4,6λ4,8λ4-tetrabora-1,3,5,7(1,3)-tetrapyridinacyclooctaphane-11,31,51,71-tetrakis(ylium)], C132H192B4N12, was synthesized unexpectedly and crystallized. Its structure contains an unusual 16-membered ring core made up of four (pyridin-3-yl)borane groups. The ring adopts a conformation with pseudo-S4 symmetry… read more here.
Keywords: pyridin; pyridin borane; borane tetramer; membered ring ... See more keywords
Crystal structure of fac-{5-[(hexylazaniumyl)methyl]-2-(pyridin-2-yl)phenyl-κ2 N,C 1}bis[2-(pyridin-2-yl)phenyl-κ2 N,C 1]iridium(III) chloride
Sign Up to like & getrecommendations! Published in 2018 at "Acta Crystallographica Section E: Crystallographic Communications"
DOI: 10.1107/s2056989018012811
Abstract: The asymmetric unit of the title compound, fac-[Ir(C11H8N)2(C18H24N2)]Cl or fac-[Ir(ppy)2(Hppy-NC6)]Cl, contains two [Ir(ppy)2(ppy-NC6)](H+) cations, two Cl− anions and a disordered solvent. In each complex molecule, the IrIII ion is coordinated by two C,N-bidentate 2-(pyridin-2-yl)phenyl ligands… read more here.
Keywords: pyridin phenyl; crystal structure; pyridin; fac ... See more keywords
Syntheses and crystal structure of 4-[(pyridin-3-yl)diazenyl]morpholine and 1-[(pyridin-3-yl)diazenyl]-1,2,3,4-tetrahydroquinoline
Sign Up to like & getrecommendations! Published in 2023 at "Acta Crystallographica Section E: Crystallographic Communications"
DOI: 10.1107/s2056989023000129
Abstract: The title triazene derivatives were synthesized using a diazonium intermediate that was obtained from 3-aminopyridine and isoamyl nitrite. read more here.
Keywords: pyridin; structure pyridin; diazenyl morpholine; pyridin diazenyl ... See more keywords