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Mostrando ítems 31-40 de 45
Artículo
Synthesis and reactivity of half-sandwich (η 5 -C 5 Me 5 )Ir(iii) complexes of a cyclometallated aryl phosphine ligand
(Royal Society of Chemistry, 2011)
Reaction of the Ir(iii) dimer [(η 5 -C 5 Me 5 )IrCl 2 ] 2 with PMeXyl 2 (Xyl = 2,6-C 6 H 3 Me 2 ), in the presence of the poorly coordinating base 2,2,6,6-tetramethyl piperidine, gives a chloride complex 1-Cl, resulting ...
Artículo
Highly enantioselective imine hydrogenation catalyzed by ruthenium phosphane-phosphite diamine complexes
(John Wiley & Sons, 2012)
Mildly does it: A highly enantioselective catalyst for the hydrogenation of N-aryl imines is described (see scheme). This catalyst offers practical advantages because it operates under very mild conditions and is based on ...
Artículo
Epimerization of glucose over ionic liquid/phosphomolybdate hybrids: structure-activity relationship
(Royal Society of Chemistry, 2018)
The influence of the crystal structure and chemical nature of some ionic liquid/phosphomolybdate hybrids on their catalytic activity in the epimerization of glucose is studied. A clear evidence for structure-activity ...
Artículo
Catalytic cross-coupling of diazo compounds with coinage metal-based catalysts: An experimental and theoretical study
(Royal Society of Chemistry (Great Britain), 2013)
We examined the ability of TpxM (Tpx = hydrotris(pyrazolyl)borate ligand; M = Cu and Ag) and IPrMCl (IPr = 1,3-bis(diisopropylphenyl)imidazol-2-ylidene; M = Cu, Ag, Au) complexes as catalyst precursors for the cross-coupling ...
Artículo
Reactivity of TpMe2-containing hydride-iridafurans with alkenes, alkynes, and H2
(American Chemical Society, 2014)
The TpMe2-containing hydride-iridafurans 2a,b (TpMe2 = hydrotris(3,5-dimethylpyrazolyl)borate) cleanly reacted with ethylene to give the bicyclic derivatives 6a,b. Formation of the latter complexes is a reversible process, ...
Artículo
Trinuclear copper(I) complexes with triscarbene ligands: catalysis of C–N and C–C coupling reactions
(Royal Society of Chemistry (Great Britain), 2009)
Novel synthetic routes for the preparation of trinuclear copper(I) complexes with triscarbene ligands are presented, which yield higher purity products than the one previously described. The first crystal structure of one ...
Artículo
Design, synthesis and biological studies of a library of NK1-Receptor Ligands Based on a 5-arylthiosubstituted 2-amino-4,6-diaryl-3-cyano-4H-pyran core: Switch from antagonist to agonist effect by chemical modification
(Elsevier, 2017)
A library of 5-arylthiosubstituted 2-amino-4,6-diaryl-3-cyano-4H-pyrans has been synthesized as a new family of non-peptide NK1 receptor ligands by a one-pot cascade process. Their biological effects via interaction with ...
Artículo
Formation of β-Metallanaphthalenes by the Coupling of a Benzo-Iridacyclopentadiene with Olefins
(American Chemical Society, 2015)
We have synthesized a new type of metallaaromatic complexes, namely the hydride-β-iridanaphthalenes TpMe2tiebar above startr(H)[C(CH2R′)-C6H4-o-C(R)═tiebar above endC(R)] (benzo-3-H,CH2R′), by reaction of the benzo-irida ...
Artículo
Quadruply bonded dimolybdenum complexes with highly unusual geometries and vacant coordination sites
(Royal Society of Chemistry (Great Britain), 2012)
New quadruply bonded dimolybdenum complexes of the terphenyl ligand Ar Xyl2 (Ar Xyl2 = C 6H 3-2,6-(C 6H 3-2,6-Me 2) 2) have been prepared and structurally characterized. The steric hindrance exerted by the Ar Xyl2 groups ...
Artículo
Copper (I) Complexes of Zwitterionic Imidazolium- 2-Amidinates, A Promising Class of Electroneutral, Amidinate-Type ligands
(American Chemical Society, 2015)
The first complexes containing imidazolium-2-amidinates as ligands (betaine-type adducts of imidazolium-based carbenes and carbodiimides, NHC-CDI) are reported. Interaction of the sterically hindered betaines ICyCDIDiPP ...