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Unprecedented formation of a μ-oxobridged polymeric copper(II) complex: Evaluation of catalytic activity in synthesis of 5-substituted 1H-tetrazoles.

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Title: Unprecedented formation of a μ-oxobridged polymeric copper(II) complex: Evaluation of catalytic activity in synthesis of 5-substituted 1H-tetrazoles.
Authors: Layek, Samaresh1, Ganguly, Rakesh2, Pathak, Devendra D.1 ddpathak@yahoo.com
Source: Journal of Organometallic Chemistry. Sep2018, Vol. 870, p16-22. 7p.
Subjects: Copper compounds, Metal complexes, Tetrazoles, Catalytic activity, Schiff bases, Chemical synthesis
Abstract: The reaction of CuCl 2 ·2H 2 O with Schiff base ligand, 4-[(2-hydroxy-3-methoxybenzylidene)amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3-one] (hmdpH), in 1:1 molar ratio led to a novel and unprecedented oxo-bridged polymeric copper (II) complex, [Cu( μ -O) (hmdp)] n . The complex was isolated as crystalline solid and characterized by FTIR, UV–visible and EPR spectroscopic techniques. The molecular structure of the complex was also determined by single crystal X-ray diffraction studies. The formation of the complex is unique and unprecedented in the sense that one of the CH 3 group of the 4-aminoantipyrene unit of the Schiff base ligand is oxidized in situ to CH 2 OH, during the complex formation. The catalytic potential of the complex has been demonstrated in the synthesis of a series of 5-substituted 1 H -tetrazoles via [3 + 2]-cycloaddition reactions of substituted benzonitriles and sodium azide in ethylene glycol. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Organometallic Chemistry is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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  Data: Unprecedented formation of a μ-oxobridged polymeric copper(II) complex: Evaluation of catalytic activity in synthesis of 5-substituted 1H-tetrazoles.
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  Data: <searchLink fieldCode="AR" term="%22Layek%2C+Samaresh%22">Layek, Samaresh</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ganguly%2C+Rakesh%22">Ganguly, Rakesh</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Pathak%2C+Devendra+D%2E%22">Pathak, Devendra D.</searchLink><relatesTo>1</relatesTo><i> ddpathak@yahoo.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Organometallic+Chemistry%22">Journal of Organometallic Chemistry</searchLink>. Sep2018, Vol. 870, p16-22. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Copper+compounds%22">Copper compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+complexes%22">Metal complexes</searchLink><br /><searchLink fieldCode="DE" term="%22Tetrazoles%22">Tetrazoles</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+activity%22">Catalytic activity</searchLink><br /><searchLink fieldCode="DE" term="%22Schiff+bases%22">Schiff bases</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+synthesis%22">Chemical synthesis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The reaction of CuCl 2 ·2H 2 O with Schiff base ligand, 4-[(2-hydroxy-3-methoxybenzylidene)amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3-one] (hmdpH), in 1:1 molar ratio led to a novel and unprecedented oxo-bridged polymeric copper (II) complex, [Cu( μ -O) (hmdp)] n . The complex was isolated as crystalline solid and characterized by FTIR, UV–visible and EPR spectroscopic techniques. The molecular structure of the complex was also determined by single crystal X-ray diffraction studies. The formation of the complex is unique and unprecedented in the sense that one of the CH 3 group of the 4-aminoantipyrene unit of the Schiff base ligand is oxidized in situ to CH 2 OH, during the complex formation. The catalytic potential of the complex has been demonstrated in the synthesis of a series of 5-substituted 1 H -tetrazoles via [3 + 2]-cycloaddition reactions of substituted benzonitriles and sodium azide in ethylene glycol. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Organometallic Chemistry is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.jorganchem.2018.06.004
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      – Code: eng
        Text: English
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        PageCount: 7
        StartPage: 16
    Subjects:
      – SubjectFull: Copper compounds
        Type: general
      – SubjectFull: Metal complexes
        Type: general
      – SubjectFull: Tetrazoles
        Type: general
      – SubjectFull: Catalytic activity
        Type: general
      – SubjectFull: Schiff bases
        Type: general
      – SubjectFull: Chemical synthesis
        Type: general
    Titles:
      – TitleFull: Unprecedented formation of a μ-oxobridged polymeric copper(II) complex: Evaluation of catalytic activity in synthesis of 5-substituted 1H-tetrazoles.
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            NameFull: Layek, Samaresh
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            NameFull: Ganguly, Rakesh
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            NameFull: Pathak, Devendra D.
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            – D: 01
              M: 09
              Text: Sep2018
              Type: published
              Y: 2018
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              Value: 870
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