A direct approach to γ‐keto esters through cascade alkyne‐aldehyde reductive C−C coupling of propargyl esters and aromatic aldehydes under transition‐metal‐free (TM‐free) fashion was developed. Compared with multistep processes, this procedure provides a fast path using commercially available materials and could be handled conveniently to produce various γ‐keto esters in moderate yields.

中文翻译：

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无过渡金属的炔醛还原型C-C耦合槽级联硼化/烯烃异构化

开发了一种通过无过渡金属（TM）方式通过炔丙基酯和芳族醛的级联炔醛还原C-C偶联直接制备γ-酮酯的方法。与多步法相比，该方法提供了一条使用市售材料的快捷途径，并且可以方便地进行操作，以中等收率生产各种γ-酮酯。