A direct and scalable route to γ-keto-α,β-unsaturated esters, useful intermediates in medicinal chemistry and natural products synthesis, is reported. The key step involves the use of Grubbs’ second-generation olefin metathesis catalyst for cross-metathesis of alkyl acrylates and 2° allylic alcohols. The metathesis step is followed by oxidation to give the desired products in high yield on scales of
报道了一种直接且可扩展的 γ-酮基-α,β-不饱和酯途径,它是药物
化学和
天然产物合成中有用的中间体。关键步骤涉及使用 Grubbs 的第二代烯烃复分解催化剂进行
丙烯酸烷基酯和 2°
烯丙醇的交叉复分解。复分解步骤之后是氧化,以高达 25 g 的规模以高产率提供所需的产品。