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Synthesis and Characterization of Novel Substituted 3,6‐Di(2‐pyridyl)pyridazine Metal‐Coordinating Ligands
Author(s) -
Hoogenboom Richard,
Kickelbick Guido,
Schubert Ulrich S.
Publication year - 2003
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200300505
Subject(s) - chemistry , pyridazine , tetrazine , nuclear magnetic resonance spectroscopy , spectroscopy , metal , copper , crystallography , stereochemistry , organic chemistry , physics , quantum mechanics
Abstract The synthesis of novel functionalized 3,6‐di(2‐pyridyl)pyridazines via an inverse electron demand Diels−Alder reaction between the corresponding 3,6‐di(2‐pyridyl)‐1,2,4,5‐tetrazine and various alkynes is reported. The resulting 3,6‐di(2‐pyridyl)pyridazines were investigated using X‐ray crystallography, IR spectroscopy, and NMR spectroscopy, whereby several 2D NMR spectroscopic techniques were exploited to conclusively assign all proton‐ and carbon‐resonances. In addition, it was demonstrated that the functionalized 3,6‐di(2‐pyridyl)pyridazines are capable of forming [2 × 2] grid‐like metal complexes with copper( I ) and silver( I ) ions. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)