1,3-Bis(3-phenylpropyl)-1<i>H-</i>benzimidazole-2(3<i>H</i>)-tellurone

Yalçın, Şerife Pınar; Akkurt, Mehmet; Yılmaz, Ülkü; Küçükbay, Hasan; Büyükgüngör, Orhan

doi:10.1107/s1600536808004893

Cited by 6 publications

(2 citation statements)

References 18 publications

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“…Chart assembles a few other potential Te-donor ligands, which did not yet find successful application in coordination chemistry. 719 was prepared from the corresponding NHC dimer by treatment with tellurium, which resembles the protocol developed by Lappert (vide supra) and related unsymmetric benzimidazolin-2-tellone derivatives such as 721a and 721b were prepared in a similar fashion .…”

Section: N-heterocyclic Carbene Adducts Of Group 16 Elementsmentioning

confidence: 99%

N-Heterocyclic Carbene Adducts of Main Group Elements and Their Use as Ligands in Transition Metal Chemistry

2019

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N-Heterocyclic carbenes (NHC) are nowadays ubiquitous and indispensable in many research fields, and it is not possible to imagine modern transition metal and main group element chemistry without the plethora of available NHCs with tailor-made electronic and steric properties. While their suitability to act as strong ligands toward transition metals has led to numerous applications of NHC complexes in homogeneous catalysis, their strong σ-donating and adaptable π-accepting abilities have also contributed to an impressive vitalization of main group chemistry with the isolation and characterization of NHC adducts of almost any element. Formally, NHC coordination to Lewis acids affords a transfer of nucleophilicity from the carbene carbon atom to the attached exocyclic moiety, and low-valent and lowcoordinate adducts of the p-block elements with available lone pairs and/or polarized carbon-element π-bonds are able to act themselves as Lewis basic donor ligands toward transition metals. Accordingly, the availability of a large number of novel NHC adducts has not only produced new varieties of already existing ligand classes but has also allowed establishment of numerous complexes with unusual and often unprecedented element−metal bonds. This review aims at summarizing this development comprehensively and covers the usage of N-heterocyclic carbene adducts of the p-block elements as ligands in transition metal chemistry.

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Section: N-heterocyclic Carbene Adducts Of Group 16 Elementsmentioning

confidence: 99%

N-Heterocyclic Carbene Adducts of Main Group Elements and Their Use as Ligands in Transition Metal Chemistry

2019

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“…NHCs are frequently observed in work areas such as the synthesis of organic or organometallic catalysts, bioactive materials, and metal-organic framework preparation. [7,[8][9][10][11][12][13] The synthesis of NHCs is generally carried out in two pathways. The first method is the deprotonation of azolium salts in the presence of a strong base, and the second method is the reduction of urea derivatives.…”

Section: Introductionmentioning

confidence: 99%

Evaluation, synthesis and structural properties of stable bisbenzimidazolium tetrafluoroborates derived from unstable benzotetraazafulvalenes

Yılmaz¹,

Küçükbay²

2023

Arkivoc

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The stable dicationic tetrafluoroborate salts of tetraazafulvalenes were synthesized with unstable Nheterocyclic carbenes or enetetramines derived from benzimidazolium and bridged-bisbenzimidazolium halides. The structural characterizations of all the compounds were determined via spectroscopic methods 1 H-NMR, 13 C-NMR, IR, and MS and by elemental analysis respectively. Also, the effect of compound 1 as a ligand on the catalytic system was evaluated in the Suzuki-Miyaura reaction.

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Recent Advances of Structural Chemistry of Organoselenium and Organotellurium Compounds

Nakanishi

Hayashi

Hashimoto

et al. 2014

Patai's Chemistry of Functional Groups

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The recent advances of structural chemistry of organoselenium and organotellurium compounds are reviewed. The basic concepts of structural chemistry of the compounds are well summarized in Chapter 3 of Volume 1 in this series. About 9,000 structures for the compounds have been reported since then, therefore only selected results can be discussed here. Such compounds are expected to contain at least one CE (E = Se or Te) bond, although those with no CE bonds are also discussed, as necessary. Compounds containing CE (E = Se and Te) are discussed in some detail. Structures of unstable and/or reactive species are explained in detail, which are stabilized by the formation of dimers or higher oligomers or using large protecting groups. Bis‐selenides and bis‐tellurides and the derivatives at the naphthalene 1,8‐positions and the related systems are discussed in detail. The compounds containing hypervalent interactions are also discussed in detail. The idea is applied to the intramolecular and intermolecular linear interactions in crystals. In this connection, the extended hypervalent interactions are also explained in detail for the linear interactions longer than three, exemplified by typical cases and unique cases in crystals.

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1,3-Bis(3-phenylpropyl)-1H-benzimidazole-2(3H)-tellurone

Cited by 6 publications

References 18 publications

N-Heterocyclic Carbene Adducts of Main Group Elements and Their Use as Ligands in Transition Metal Chemistry

N-Heterocyclic Carbene Adducts of Main Group Elements and Their Use as Ligands in Transition Metal Chemistry

Evaluation, synthesis and structural properties of stable bisbenzimidazolium tetrafluoroborates derived from unstable benzotetraazafulvalenes

Recent Advances of Structural Chemistry of Organoselenium and Organotellurium Compounds

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