Homogeneous CuCl2/TMEDA/TEMPO-Catalyzed chemoselective base- and halogen- free aerobic oxidation of primary alcohols in mild conditions,Applied Catalysis A: General

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Homogeneous CuCl2/TMEDA/TEMPO-Catalyzed chemoselective base- and halogen- free aerobic oxidation of primary alcohols in mild conditions
Applied Catalysis A: General ( IF 4.7 ) Pub Date : 2021-07-15 , DOI: 10.1016/j.apcata.2021.118289
Emmanuel D. Silva ₁ , Otávio A.L. Alves ₁ , RogérioT. Ribeiro ₁ , Rafael C.R. Chagas ₂ , José A.F.P. Villar ₂ , Jefferson L. Princival _{1,

2}

Affiliation

This article describes the developing of a base- and halogen- free homogeneous system aiming to chemoselectively oxidize allyl, furyl, aryl and heteroaryl primary alcohols. The current easy-to-handle aerobic system uses few amounts of CuCl₂/TMEDA/TEMPO system under mild reaction conditions to produce aldehydes in high yields. Moreover, the CuCl₂/TMEDA cyclic voltammetry was measured for the first time, disclosing that TMEDA as ligand substantially affects the redox potential (E1/2) of the couple E1/2Cu²⁺/Cu⁺ to E1/2Cu²⁺/Cu⁺-TMEDA by 454 mV in the redox system.

中文翻译：

在温和条件下均相 CuCl2/TMEDA/TEMPO 催化化学选择性无碱和无卤素的伯醇有氧氧化

本文描述了一种无碱和无卤素的均相系统的开发，旨在化学选择性地氧化烯丙基、呋喃基、芳基和杂芳基伯醇。当前易于操作的好氧系统在温和的反应条件下使用少量的 CuCl ₂ /TMEDA/TEMPO 系统以高产率生产醛。此外，首次测量了CuCl ₂ /TMEDA 循环伏安法，揭示了TMEDA 作为配体显着影响E1/2Cu ²⁺ /Cu ⁺对E1/2Cu ²⁺ /Cu的氧化还原电位（E1/2）⁺ -TMEDA 在氧化还原系统中增加 454 mV。

更新日期：2021-08-01

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