Formation and Conformational Conversion of Flattened Partial Cone Oxygen Bridged Calix[2]arene[2]triazines

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• 作者：Qi-Qiang Wang ; De-Xian Wang ; Qi-Yu Zheng ; Mei-Xiang Wang
• 刊名：Organic Letters
• 出版年：2007
• 出版时间：July 19, 2007
• 年：2007
• 卷：9
• 期：15
• 页码：2847 - 2850
• 全文大小：114K
• 年卷期：v.9,no.15(July 19, 2007)
• ISSN：1523-7052

文摘

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A stepwise fragment coupling reaction starting with substituted dichlorotriazine and resorcinol derivatives gave rise to thermodynamicallyfavored 1,3-alternate tetraoxacalix[2]arene[2]triazines and kinetically controlled flattened partial cone tetraoxacalix[2]arene[2]triazines. The flattenedpartial cone conformer, which was stable due to the steric effect, converted into the 1,3-alternate conformer via ether bond cleavage upontreatment with an inorganic base.