The bis‐N‐heterocyclic carbene‐catalyzed (bis‐NHC‐catalyzed) oxidative transformation of aldehydes was successfully studied in water under air. The reaction rate increased through the use of Pd(OAc)₂ as an additive. Notably, the catalytic system exhibited good tolerance toward aliphatic and aromatic aldehydes bearing halide and alkyl functional groups. In addition, gram‐scale reaction was also tested in this study. The use of water and operational simplicity make this methodology environmentally benign and cost‐effective.

中文翻译：

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Pd（OAc）2促进双N杂环卡宾催化醛的氧化转化

所述双- ñ -杂环卡宾-催化的（双-NHC催化的）氧化醛的转化成功研究了水在空气下。通过使用Pd（OAc）₂作为添加剂，反应速率得以提高。值得注意的是，该催化体系对带有卤化物和烷基官能团的脂族和芳族醛表现出良好的耐受性。此外，在这项研究中还测试了克级反应。水的使用和操作的简便性使该方法在环境方面无害且具有成本效益。