【摘 要】
：
New [1+1] and 62-membered [2+2] Schiff base macrocycles containing a 2,6-diamidopyridine subunit have been synthesized by condensation reaction of the precursor
【机 构】
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Key Laboratory of Macrocyclic and Supramolecular Chemistry, Guizhou University,Department of Chemist
【出 处】
：
Chinese Chemical Letters
论文部分内容阅读
New [1+1] and 62-membered [2+2] Schiff base macrocycles containing a 2,6-diamidopyridine subunit have been synthesized by condensation reaction of the precursors pyridine-2,6-dicarboxamide and 1,10-bis(20-formylphenyloxy)decane in the presence of phosphoric acid via a one-pot process. The cyclocondensed products were effectively isolated by gel column chromatography and characterized by ~1H NMR, FTIR, mass spectrometry and X-ray analysis. The two macrocycles have a twisted structure, and not an open ‘circular’ conformation in the solid state.
New [1 + 1] and 62-membered [2 + 2] Schiff base macrocycles containing a 2,6-diamidopyridine subunit have been synthesized by condensation reaction of the precursors pyridine- 2,6-dicarboxamide and 1,10-bis The cyclocondensed products were effectively isolated by gel column chromatography and characterized by ~ 1H NMR, FTIR, mass spectrometry and X-ray analysis. The two macrocycles have a twisted structure, and not an open ’circular’ conformation in the solid state.
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