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Search for "polynitrogen ligands" in Full Text gives 2 result(s) in Beilstein Journal of Organic Chemistry.

Synthetic accesses to biguanide compounds

  • Oleksandr Grytsai,
  • Cyril Ronco and
  • Rachid Benhida

Beilstein J. Org. Chem. 2021, 17, 1001–1040, doi:10.3762/bjoc.17.82

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  • : amidine; biguanide; guanidine chemistry; metformin derivatives; polynitrogen ligands; synthetic methodology; Introduction Biguanide – or amidinoguanidine – is a chemical compound derived from guanidine in which two guanidine molecules are linked through a common nitrogen atom. Since its first synthesis
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Published 05 May 2021

Construction of bis-, tris- and tetrahydrazones by addition of azoalkenes to amines and ammonia

  • Artem N. Semakin,
  • Aleksandr O. Kokuev,
  • Yulia V. Nelyubina,
  • Alexey Yu. Sukhorukov,
  • Petr A. Zhmurov,
  • Sema L. Ioffe and
  • Vladimir A. Tartakovsky

Beilstein J. Org. Chem. 2016, 12, 2471–2477, doi:10.3762/bjoc.12.241

Graphical Abstract
  • alkylations of amines and ammonia with azoalkenes (generated from α-halohydrazones) were demonstrated as an efficient approach to poly(hydrazonomethyl)amines – a novel class of polynitrogen ligands. An intramolecular cyclotrimerization of C=N bonds in tris(hydrazonomethyl)amine to the respective 1,4,6,10
  • 1a was used to ensure complete alkylation). Macrocyclic polynitrogen ligands with several hydrazone arms may be of interest for the design of sensors [52] and contrast agents [53]. Unfortunately, alkylation of ethylenediamine with 4 equivalents of 1a led to an indecipherable mixture of products. In
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Published 21 Nov 2016
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