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  • Busa, Asanda V.University of the Western Cape (author)

New copper(II) salicylaldimine derivatives for mild oxidation of cyclohexane

  • Article/chapterEnglish2018

Publisher, publication year, extent ...

  • 2018-05-26
  • Springer Science and Business Media LLC,2018

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  • LIBRIS-ID:oai:lup.lub.lu.se:6002c70f-757c-43e1-9fbd-8fcdd8bf6b94
  • https://lup.lub.lu.se/record/6002c70f-757c-43e1-9fbd-8fcdd8bf6b94URI
  • https://doi.org/10.1007/s12039-018-1455-yDOI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

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  • Abstract: Two new salicylaldiminato-copper(II) complexes, [Cu(L1)2] (1) and [Cu(L2)2] (2) (where HL1= 4 -tert-Butyl-2-[(thiophen-2-ylmethylimino)-methyl]-phenol and HL2= 2 , 4 -Di-tert-butyl-6-[(thiophen-2-ylmethylimino)-methyl]-phenol), endowed with a pendant thiophenyl moiety, were synthesized and characterized using standard spectroscopic techniques (FT-IR, UV-Vis, MS) and elemental analysis. Complexes 1 and 2 were unequivocally characterized by single crystal X-ray crystallography, which confirmed bidentate bis-chelation of the deprotonated -L1 and -L2 ligands to the copper (II) centres via the phenoxo and imine atoms forming square planar complexes. The copper(II)-hydroperoxo derivatives of 1 and 2 ([(L1)2CuII-OOH] (3) and [(L2)2CuII-OOH] (4)) were also synthesized and the formation of the active intermediate in solution studied. Complexes 1 and 2 were tested as catalyst precursors in cyclohexane oxidation under mild reaction conditions using hydrogen peroxide (H 2O 2) as a terminal oxidant, and were found to catalyse oxidation of the substrate with yields comparable to similar mononuclear and even multinuclear copper complexes. Graphical Abstract: Synopsis Synthesis, characterisation, and molecular structure of salicylaldiminato-copper(II) complexes, and their catalytic evaluation in the oxidation of cyclohexane employing hydrogen peroxide as a terminal oxidant have been studied. The complexes catalysed conversion of cyclohexane with appreciable yields. [Figure not available: see fulltext.].

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  • Lalancette, RogerRutgers University: The State University of New Jersey (author)
  • Nordlander, EbbeLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)ook1-eno (author)
  • Onani, MartinUniversity of the Western Cape (author)
  • University of the Western CapeRutgers University: The State University of New Jersey (creator_code:org_t)

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  • In:Journal of Chemical Sciences: Springer Science and Business Media LLC130:60974-36260973-7103

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Busa, Asanda V.
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Nordlander, Ebbe
Onani, Martin
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