1998
DOI: 10.3891/acta.chem.scand.52-0077
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Regioselective Functionalization of 2,2'-Bipyridine and Transformations into Unsymmetric Ligands for Coordination Chemistry.

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Cited by 44 publications
(41 citation statements)
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“…Compound 9 was prepared by the literature method. [38] NMR spectroscopy: 1D and 2D NMR spectra were recorded with a Bruker Avance 400/500 MHz spectrometer.…”
Section: Methodsmentioning
confidence: 99%
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“…Compound 9 was prepared by the literature method. [38] NMR spectroscopy: 1D and 2D NMR spectra were recorded with a Bruker Avance 400/500 MHz spectrometer.…”
Section: Methodsmentioning
confidence: 99%
“…The compound 4 was oxidised with meta-chloroperbenzoic acid (m-CPBA) to form the Noxide 5, which was further treated with trimethylsilyl cyanide in the presence of carbamoyl chloride to yield 6-cyano-2,2'-bipyridine (6). [38] This was subsequently treated with hydrazine in ethanol to form the dihydro base 7, which was further oxidised with nitric acid in acetic acid to afford the tetrazine 8 as a pink solid. [39] Bubbling of acetylene through a solution of 8 in DMF at reflux provided the bis-tridentate ligand 3,6-bis-(4,4'-dimethyl-2,2'-bipyrid-6-yl)pyridazine (L1) as a white solid.…”
Section: Synthesis and Characterisationmentioning
confidence: 99%
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“…5 We have found that this compound is more conveniently prepared by the sequence shown in Scheme 2. Thus 2,2'-bipyridine was converted to the 6-bromo-derivative by a methylation, oxidation, bromination sequence 6 and then converted into 6 by lithium ______________________ Keywords: N-ligand, Pyridine, Imidazole, Tridentate ligand Corresponding author: Tel. : +64-3-3642432; fax: +64-3-3642110; email: peter.steel@canterbury.ac.nz halogen exchange followed by formylation with DMF.…”
Section: Scheme 1 Previously Reported Binucleating Ligandsmentioning
confidence: 99%