摘要/Abstract

亚胺化合物作为一类重要的有机合成中间体, 在医药、染料以及精细化学品制备方面具有重要的应用价值. 使用竹笋为生物质原料制备一种氮掺杂碳材料负载的Pd纳米结构催化剂, 以醇为氢源和反应物, 通过借氢还原策略实现硝基芳烃原位还原并偶联反应高效制备亚胺化合物. 该催化剂相对于其他商业化的催化剂和载体具有明显的性能优势, 催化体系具有良好的底物适用性和官能团兼容性. 此外, 该催化剂具有良好的催化稳定性, 能够循环使用多次并保持催化活性不变.
关键词: 氮掺杂碳材料, Pd纳米颗粒, 硝基芳烃, 苄醇, 借氢, 亚胺化合物
Imines as a versatile organic synthetic intermediates have important applications in pharmaceuticals, dyes, and fine chemicals. In this work, heterogeneous Pd nanoparticles (Pd@N,O-carbon) on N doped carbon materials were developed using bamboo shoot as raw materials for highly efficient reductive coupling of nitroarenes with alcohols to selectively synthesize imines via the borrowing hydrogen strategy. The catalyst has obvious advantages in catalytic performance compared with other commercial catalysts or supports. Meanwhile, a broad set of complex imines were successfully synthesized in good yields with various functional groups tolerance for both nitroarenes and alcohols. This heterogeneous catalyst can also be recycled at several times without significant loss in activity and selectivity.
Key words: N doped carbon materials, Pd nanoparticles, nitroarenes, benzyl alcohols, borrowing hydrogen, imines


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