Nickel-catalyzed tandem conversion of paraformaldehyde : methanol to hydrogen and formate/chemo- and stereoselective hydrogenation of alkynes under neutral conditions
作者:Murugan Subaramanian、Subarna Sukanya Padhy、Chandrakanth Gouda、Tamal Das、Kumar Vanka、Ekambaram Balaraman
DOI:10.1039/d3cy01699d
日期:——
development of new catalytic protocols for clean and COx-free hydrogen generation from fundamental feedstocks is always interesting and challenging. Herein, we disclose nickel-catalyzed dihydrogen generation from a mixture of paraformaldehyde–methanol under base-free and activator-free conditions. The dihydrogen generation from this redox combination under neutral, oxidative coupling conditions has been
开发新的催化方案以利用基本原料生产清洁且无CO x的氢气始终是有趣且具有挑战性的。在此,我们公开了在无碱和无活化剂条件下由多聚甲醛-甲醇混合物产生镍催化的氢气。在中性、氧化偶联条件下由这种氧化还原组合产生的氢气已与氢转移反应集成,例如以串联方式对炔烃进行化学和立体选择性氢化。这种前所未有的策略提供了多种高度立体选择性的烯烃,对可还原官能团(如醚、甲硅烷基醚、醛、酮、酯、腈、包括溴和碘基团的卤化物以及杂芳烃)具有优异的耐受性。此外,我们还证明了烯烃在良性条件下的催化立体互变。一些重要的药物生物活性分子的克级规模合成,进一步提高了其合成价值。