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Search for "coordination chemistry" in Full Text gives 65 result(s) in Beilstein Journal of Organic Chemistry.

Silver and gold-catalyzed multicomponent reactions

  • Giorgio Abbiati and
  • Elisabetta Rossi

Beilstein J. Org. Chem. 2014, 10, 481–513, doi:10.3762/bjoc.10.46

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  • moiety behaves as a traditional “three-carbon atom unit”. This behavior originates from the involvement of the isocyanide in the cyclization step. Reactions involving organosilver reagents. Information about organosilver compound chemistry with respect to the coordination chemistry of silver salts and
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Published 26 Feb 2014

Advancements in the mechanistic understanding of the copper-catalyzed azide–alkyne cycloaddition

  • Regina Berg and
  • Bernd F. Straub

Beilstein J. Org. Chem. 2013, 9, 2715–2750, doi:10.3762/bjoc.9.308

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Published 02 Dec 2013

Isolation and X-ray characterization of palladium–N complexes in the guanylation of aromatic amines. Mechanistic implications

  • Abdessamad Grirrane,
  • Hermenegildo Garcia and
  • Eleuterio Álvarez

Beilstein J. Org. Chem. 2013, 9, 1455–1462, doi:10.3762/bjoc.9.165

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  • are used. Characterization of these palladium complexes strongly supports a mechanistic proposal for the catalytic guanylation of anilines using PdCl2(NCCH3)2 as catalyst that involves the intermediacy of these Pd(II) complexes. Keywords: coordination chemistry; guanylation reaction; homogeneous
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Published 22 Jul 2013

Methylidynetrisphosphonates: Promising C1 building block for the design of phosphate mimetics

  • Vadim D. Romanenko and
  • Valery P. Kukhar

Beilstein J. Org. Chem. 2013, 9, 991–1001, doi:10.3762/bjoc.9.114

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  • interest is also associated with the use of trisphosphonic acids as ligands for calcium ligation and as potential bone affinity agents. Finally, there is no doubt that organometallic and coordination chemistry will benefit from future innovative application of these compounds. Bond angles and bond
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Published 24 May 2013

Spin state switching in iron coordination compounds

  • Philipp Gütlich,
  • Ana B. Gaspar and
  • Yann Garcia

Beilstein J. Org. Chem. 2013, 9, 342–391, doi:10.3762/bjoc.9.39

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Published 15 Feb 2013

Syntheses and applications of furanyl-functionalised 2,2’:6’,2’’-terpyridines

  • Jérôme Husson and
  • Michael Knorr

Beilstein J. Org. Chem. 2012, 8, 379–389, doi:10.3762/bjoc.8.41

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  • functionalised with furan heterocycles are reviewed. The methodologies used to prepare such compounds include the ring closure of 1,5-diketones and cross-coupling reactions. These versatile terpyridines and their derived metal complexes find applications in various fields including coordination chemistry
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Published 12 Mar 2012

Fifty years of oxacalix[3]arenes: A review

  • Kevin Cottet,
  • Paula M. Marcos and
  • Peter J. Cragg

Beilstein J. Org. Chem. 2012, 8, 201–226, doi:10.3762/bjoc.8.22

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  • + preferentially interacts with them across the ring. Introduction of heteroatoms, such as nitrogen, into the oxacalix[3]arene lower rims can also be achieved by O-alkylation. Pyridine is known to be a good ligand towards metals and is widely employed in transition-metal coordination chemistry; therefore, in an
  • bromination of the methylol-terminated oxacalix[3]arene, employing PBr3, and coupling with 1,3,5-tris(methanethiol)benzene in the presence of Cs2CO3 in THF. 3.2.4 Upper-rim coordination chemistry: The functionalization of the upper rims of oxacalix[3]arenes has also been achieved through classical inorganic
  • coordination chemistry. Shinkai reported that the reactions of 4- and 3-pyridyloxacalix[3]arenes, protected on the lower rims by esters or methyl ethers, with [1,3-(diphenylphosphine)propane]palladium(II) salts gave dimeric capsules linked by three Pd(II) ions at the 4-pyridyl groups (46, Figure 14) or 3
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Published 07 Feb 2012

Fluorescent hexaaryl- and hexa-heteroaryl[3]radialenes: Synthesis, structures, and properties

  • Antonio Avellaneda,
  • Courtney A. Hollis,
  • Xin He and
  • Christopher J. Sumby

Beilstein J. Org. Chem. 2012, 8, 71–80, doi:10.3762/bjoc.8.7

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  • ][14], was originally reported by Oda [15][16]. Hexapyridyl[3]radialenes were obtained shortly afterwards with the synthesis of hexa(2-pyridyl)[3]radialene being reported concurrently by Oda and Steel [17][18]. The coordination chemistry of hexaaryl- and hexapyridyl[3]radialenes has been studied to a
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Published 11 Jan 2012

Synthesis and oxidation of some azole-containing thioethers

  • Andrei S. Potapov,
  • Nina P. Chernova,
  • Vladimir D. Ogorodnikov,
  • Tatiana V. Petrenko and
  • Andrei I. Khlebnikov

Beilstein J. Org. Chem. 2011, 7, 1526–1532, doi:10.3762/bjoc.7.179

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  • coordination chemistry and their potential biological activity. The lower reactivity and selectivity of benzotriazole-containing thioether in oxidation reactions is explained by the presence of electron-withdrawing heterocycles in proximity to the sulfur atom, but nevertheless, the corresponding sulfoxide or
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Published 16 Nov 2011

Stereogenic boron in 2-amino-1,1-diphenylethanol-based boronate–imine and amine complexes

  • Sebastian Schlecht,
  • Walter Frank and
  • Manfred Braun

Beilstein J. Org. Chem. 2011, 7, 615–621, doi:10.3762/bjoc.7.72

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  • complex 10 was established by separation of the enantiomers. Racemization barriers were found to be in the same range for both amine and imine complexes (100–110 kJ/mol). Keywords: boron; chirality; coordination chemistry; crystal structure; stereochemistry; Introduction Enantiomerism of main group
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Published 16 May 2011

Anthracene functionalized terpyridines – synthesis and properties

  • Falk Wehmeier and
  • Jochen Mattay

Beilstein J. Org. Chem. 2010, 6, No. 54, doi:10.3762/bjoc.6.54

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  • (terpyridine)complexes 6a–b. Irradiation experiments were carried out with both the free ligands and an iron(II)-complex in order to investigate the photochemistry of the compounds. Keywords: anthracene; coordination chemistry; photochemistry; terpyridine; Introduction 2,2′:6′,2″-Terpyridines have been of
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Published 27 May 2010
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  • strongly dependent on the transition metal present, vice versa the photochromic reaction seems to influence the MLCT transition of a binuclear Ru(II) complex. Keywords: coordination chemistry; diarylethene; photochromism; terpyridine; Introduction 2,2′:6′,2″-Terpyridines have been of great interest over
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Published 26 May 2010

Functional properties of metallomesogens modulated by molecular and supramolecular exotic arrangements

  • Alessandra Crispini,
  • Mauro Ghedini and
  • Daniela Pucci

Beilstein J. Org. Chem. 2009, 5, No. 54, doi:10.3762/bjoc.5.54

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  • -mesogenic 4,4′-disubstituted 2,2′-bipyridine ligands with Pt(II) salts confirmed the role of coordination chemistry in the metal-mediated formation of liquid crystals. Indeed the induction of a dipole moment upon coordination with an MX2 moiety, allowed most of the half-disc shaped complexes [LnPtX2
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Published 12 Oct 2009

Structural studies on encapsulation of tetrahedral and octahedral anions by a protonated octaaminocryptand cage

  • I. Ravikumar,
  • P. S. Lakshminarayanan,
  • E. Suresh and
  • Pradyut Ghosh

Beilstein J. Org. Chem. 2009, 5, No. 41, doi:10.3762/bjoc.5.41

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  • . Keywords: anion receptor; cryptand; molecular recognition; proton cage; Introduction In recent years considerable efforts have been made in elucidating the coordination chemistry of anions because of their vital roles in biological systems [1], medicine [2], catalysis [3], and environmental issues [4
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Published 31 Aug 2009

Expedient syntheses of the N-heterocyclic carbene precursor imidazolium salts IPr·HCl, IMes·HCl and IXy·HCl

  • Lukas Hintermann

Beilstein J. Org. Chem. 2007, 3, No. 22, doi:10.1186/1860-5397-3-22

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  • involving a 1,5-dipolar electrocyclization is proposed. Background Imidazolylidene carbenes have been investigated as ligands in coordination chemistry, as powerful steering/controlling elements in transition-metal catalysis,[1][2] and more recently as metal-free catalysts for organic reactions[3][4]. Some
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Published 28 Aug 2007
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