Microwave-assisted functionalization of the layered Aurivillius phase Bi₂SrTa₂O₉ by alcohols is thoroughly investigated. The grafting of linear aliphatic and bulky alcohols is studied as a function of the starting material, underlining the importance of the prefunctionalization of the layered perovskite, for instance by butylamine. In addition, the functionalization by α,ω-alkanediols is explored. α,ω-alkanediols bearing long alkyl chains (n_C > 3) adopt an unprecedented pillaring arrangement, whereas 1,3-propanediol and ethyleneglycol adopt a bilayer arrangement, only one out of the two hydroxyl groups being coordinated. Finally, the reactivities of alcohols and amines towards insertion are compared: the preferential reactivity of the two functional groups appears to be strongly dependent of the reaction conditions, and especially of the water content. This study is further extended to the case of amino-alcohol insertion. In this case, the amine group is preferentially bound, but it is possible to control the grafting of the alcohol moiety, thus going from a bilayer arrangement to a pillaring one. This work is of particular importance to be able to functionalize easily and rapidly layered oxides with elaborated molecules, bearing several different potentially reactive groups.

中文翻译：

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Aurivillius相Bi ₂ SrTa ₂ O _9的微波辅助功能化：二醇接枝和胺插入与醇接枝†

深入研究了醇对微波辅助层状Aurivillius相Bi ₂ SrTa ₂ O ₉的官能化作用。研究了线性脂肪族和大体积醇的接枝与原料的关系，突显了层状钙钛矿（例如丁胺）预官能化的重要性。另外，探索了α，ω-链烷二醇的官能化。带有长烷基链的α，ω-链烷二醇（n _C> 3）采用前所未有的柱状排列，而1,3-丙二醇和乙二醇采用双层排列，两个羟基中只有一个被配位。最后，比较了醇和胺对插入的反应性：两个官能团的优先反应性似乎强烈依赖于反应条件，尤其是水含量。这项研究进一步扩展到氨基醇插入的情况。在这种情况下，胺基优先结合，但是有可能控制醇部分的接枝，从而从双层排列变为支柱排列。这项工作特别重要，是能够使用带有数个不同的潜在反应性基团的精细分子轻松快速地使层状氧化物官能化。