Abstract
A bimetallic cuprous complex was accidentally reported, during synthesis of a dinucleating spacer incorporating two 2-chloropyridine units through Sandmayer reaction. The product was characterized by elemental analysis, FAB-Mass, FT-IR, UV, magnetic susceptibility and1H-NMR spectroscopic method. A possible mechanism is also proposed.
Highlights
Synthesis of bidentate heterocyclic ligands containing pyridine nucleus with potential coordinating ability has drawn a lot of attention because of their fungicidal, antimicrobial and antibacterial properties[1]
It was observed that catalyst lost its identity by participating in reaction. This communication presents our experience, which we observed during synthesis of a dinucleating spacer incorporating two 2-chloropyridine units
In FT-IR spectra, three new bands appeared in region 518-312 cm-1, are due to Cu-O, Cu-N and Cu-Cl bands, respectively[5,6]
Summary
Synthesis of bidentate heterocyclic ligands containing pyridine nucleus with potential coordinating ability has drawn a lot of attention because of their fungicidal, antimicrobial and antibacterial properties[1]. In order to synthesize a novel spacer containing chloro group at ortho position to pyridine nitrogen, we have synthesized tetrazonium salt by diazotization of 5,5′-methylenebis(2-aminopyridine). Thereafter Sandmayer reaction was applied to introduce chloro group, by evolving N2, in corresponding diazonium salt solution. Surprising results were obtained, when reaction is applied to tetrazonium salt solution of 5,5′-methylenebis(2-aminopyridine)[3].
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