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Synthesis and structure characterization of unsymmetrical oxacalix[2]benzene[2]pyrazines

✍ Scribed by Mei Li; Ming-Liang Ma; Xiao-Yan Li; Ke Wen


Book ID
108282974
Publisher
Elsevier Science
Year
2009
Tongue
French
Weight
236 KB
Volume
65
Category
Article
ISSN
0040-4020

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## Abstract An improved preparation of 2,2′‐bipyridine‐6‐carboxaldehyde 1 provides this compound in good yield for the further syntheses of oligo‐(2,2′‐bipyridyl)pyrazines 6–8, new ligands for supramolecular metallorganic complexes. According to ^1^H‐NMR spectroscopic and X‐ray crystallographic stu