AbstractThe use of molecular oxygen as the terminal oxidant in transition metal catalyzed oxidative process is an appealing and challenging task in organic synthetic chemistry. Here, we report a Ni‐catalyzed hydroxylarylation of unactivated alkenes enabled by a β‐diketone ligand with high efficiency and excellent regioselectivity employing molecular oxygen as the oxidant and hydroxyl source. This reaction features mild conditions, broad substrate scope and incredible heterocycle compatibility, providing a variety of β‐hydroxylamides, γ‐hydroxylamides, β‐aminoalcohols, γ‐aminoalcohols, and 1,3‐diols in high yields. The synthetic value of this methodology was demonstrated by the efficient synthesis of two bioactive compounds, (±)‐3′‐methoxyl citreochlorol and tea catechin metabolites M4.
摘要在过渡金属催化的氧化过程中使用分子氧作为末端氧化剂是有机合成化学中一项既吸引人又具有挑战性的任务。在此,我们报告了一种镍催化的未活化烯烃羟基芳基化反应,该反应以分子氧为氧化剂和羟基源,由β-二酮配体促成,具有高效率和优异的区域选择性。该反应具有条件温和、底物范围广、杂环兼容性强等特点,能以高产率提供各种 β-羟基酰胺、γ-羟基酰胺、β-氨基醇、γ-氨基醇和 1,3-二醇。(±)-3′-methoxyl citreochlorol 和茶儿茶素代谢物 M4 这两种生物活性化合物的高效合成证明了该方法的合成价值。