Rhodium-Catalyzed Synthesis of Amides from Aldehydes and Azides by Chelation-Assisted CH Bond Activation
作者:Bing Zhou、Yaxi Yang、Jingjing Shi、Huijin Feng、Yuanchao Li
DOI:10.1002/chem.201301168
日期:2013.8.5
CH activation: A RhIII‐catalyzed direct aldehyde CH amidation has been achieved with sulfonyl, aryl, and alkyl azides as the amine sources, and release of N2 as the only byproduct (see scheme). More importantly, this catalytic reaction proceeds in the absence of external oxidants or additives, under mild conditions, at neutral pH under air. This reaction represents a new avenue for practical intermolecular
Ç ħ激活:一个铑III催化的直接醛C ħ酰胺化已经与磺酰基,芳基和烷基叠氮化作为胺源,以及N释放达到2作为唯一的副产物(参见方案)。更重要的是,该催化反应在温和条件下,在空气中性pH下,在没有外部氧化剂或添加剂的情况下进行。该反应代表了通过醛CH键活化形成实际分子间CN键的新途径。Cp * = 1,2,3,4,5-五甲基环戊二烯