Polyether Synthesis through Reductive Etherification Reaction Strategy,Macromolecular Chemistry and Physics

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Polyether Synthesis through Reductive Etherification Reaction Strategy
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2023-04-26 , DOI: 10.1002/macp.202300063
Serter Luleburgaz ₁ , Umit Tunca ₁ , Hakan Durmaz ₁

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The reductive etherification reaction (RER) of carbonyl groups (aldehydes or ketones) through silane as a reducing agent together with Bronsted or Lewis acid affords the synthesis of symmetrical and unsymmetrical ethers. This strategy is applied at the macromolecular level for the first time in 1993, and isophthalaldehyde is self-polymerized in the presence of triethylsilane (Et₃SiH)/ tritylperchlorate (TrClO₄) to yield polyethers with low to moderate molecular weights. Next, the polyethers with alternating structures are achieved by reacting isophthalaldehyde with bis(trimethylsilyl) ethers or diols as comonomers using reducing agent silane and Lewis acid. Moreover, in recent years, it is shown that polyether synthesis and post-polymerization modification (PPM) of polymers proceeds smoothly and effectively with the RER strategy in the presence of chlorodimethylsilane (CDMS), which acts as both a reducing agent and a Lewis acid.

中文翻译：

还原醚化反应策略合成聚醚

羰基（醛或酮）通过硅烷作为还原剂与布朗斯台德酸或路易斯酸一起发生还原醚化反应（RER），合成对称和不对称醚。该策略于1993年首次应用于大分子水平，间苯二甲醛在三乙基硅烷(Et ₃ SiH)/三苯甲基高氯酸酯(TrClO ₄ )存在下进行自聚合，生成低至中等分子量的聚醚。接下来，通过使用还原剂硅烷和路易斯酸，使间苯二醛与双(三甲基硅基)醚或二醇作为共聚单体反应，得到具有交替结构的聚醚。此外，近年来，研究表明，在氯二甲基硅烷（CDMS）同时充当还原剂和路易斯酸的情况下，通过RER策略，聚合物的聚醚合成和聚合后改性（PPM）顺利有效地进行。

更新日期：2023-04-26

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