Triphasic Continuous‐Flow Oxidation System for Alcohols Utilizing Graft‐Polymer‐Supported TEMPO,Asian Journal of Organic Chemistry

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Triphasic Continuous‐Flow Oxidation System for Alcohols Utilizing Graft‐Polymer‐Supported TEMPO
Asian Journal of Organic Chemistry ( IF 2.8 ) Pub Date : 2018-05-24 , DOI: 10.1002/ajoc.201800125
Yoshinori Okuno ₁ , Yuuichi Kitagawa ₁ , Syuhei Kamiya ₁ , Arata Hasegawa ₁ , Takashi Kawashima ₁ , Kazuki Otani ₁ , Syoji Aoki ₂ , Junichi Kanno ₂ , Shigeki Isomura ₁ , Yasuo Sato ₁ , Kazuyoshi Takeda ₁

Affiliation

We developed a triphasic (solid–organic–aqueous) continuous‐flow reaction system for the chemoselective oxidation of primary and secondary alcohols, using 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO) immobilized on polyethylene‐g‐polyacrylic acid graft polymer (g‐TEMPO). g‐TEMPO exhibited higher contact efficiency than TEMPO supported on silica or cross‐linked polystyrene under immiscible‐flow conditions, and maintained excellent conversion for at least 9 days with no loss of catalytic activity.

中文翻译：

利用接枝聚合物支撑的TEMPO进行酒精的三相连续流氧化系统

我们开发了一种三相（固-有机-水）连续流动反应系统为伯醇和仲醇的化学选择性氧化，使用固定在聚乙烯2,2,6,6-四甲基哌啶-1-氧基（TEMPO）克-polyacrylic酸接枝聚合物（g- TEMPO）。g ‐ TEMPO在不混溶的流动条件下显示出比在硅胶或交联聚苯乙烯上负载的TEMPO更高的接触效率，并保持了出色的转化率至少9天，而没有失去催化活性。

更新日期：2018-05-24

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