Cryptands and bismacrocycles with cyanuric and isocyanuric units: synthesis and structural investigations

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• 作者：Flavia Pop ; Crina Socaci ; Anamaria Terec ; Eric Condamine ; Richard Attila Varga ; Ciprian I. Ra? ; Jean Roncali ; Ion Grosu
• 关键词：Cryptands ; Bismacrocycles ; Triazines ; Dynamic NMR ; Diynes
• 刊名：Tetrahedron
• 出版年：2012
• 出版时间：14 October, 2012
• 年：2012
• 卷：68
• 期：41
• 页码：8581-8588
• 全文大小：1401 K

文摘

Hay synthesis of cryptands and bismacrocycles starting from tripodands with cyanuric and isocyanuric cores is reported. The structure of the compounds is revealed by X-ray diffraction, NMR spectrometry and MS investigations. DNMR experiments carried out with bismacrocycles indicated the flipping of the rings and the free-energy barrier for the conformational process could be determined in one case.