Identification of the Optimal Framework for Nitroxyl Radical/Hydroxylamine in Copper-Cocatalyzed Aerobic Alcohol Oxidation
作者:Masaki Toda、Yusuke Sasano、Masaya Takahashi、Shogo Fujiki、Koki Kasabata、Tetsuya Ono、Katsuhiko Sato、Yoshitomo Kashiwagi、Yoshiharu Iwabuchi
DOI:10.1021/acs.joc.2c02327
日期:2023.2.3
1]heptan-7-ol (ABHOL) are the main homologues of hydroxylamine 2-azaadamantan-2-ol (AZADOL) and 9-azabicyclo[3.3.1]nonan-9-ol. Both homologues feature a small bicyclic backbone and are known to be stable; however, to date, they have not been used as catalysts for alcohol oxidation. Herein, we report that these hydroxylamines can efficiently catalyze the oxidation of various secondary alcohols to their corresponding
8-Azabicyclo[3.2.1]octan-8-ol (ABOOL) 和 7-azabicyclo[2.2.1]heptan-7-ol (ABHOL) 是羟胺 2-azaadamantan-2-ol (AZADOL) 和9-氮杂双环[3.3.1]壬烷-9-醇。两种同系物都具有小的双环主链,并且众所周知是稳定的;然而,迄今为止,它们还没有被用作醇氧化的催化剂。在此,我们报道了这些羟胺可以在室温下使用环境空气中的分子氧作为末端氧化剂和铜助催化剂,有效地催化各种仲醇氧化成相应的酮。此外,我们表明可以从市售材料轻松合成 ABOOL 和 ABHOL。