Self-assembled multilayer iron(0) nanoparticles (NPs, 6–10 nm), namely, sulfur-modified Au-supported Fe(0) [SAFe(0)], were developed for ligand-free one-pot carbon–carbon/carbon–nitrogen bond-forming reactions. SAFe(0) was successfully prepared using a well-established metal–nanoparticle catalyst preparative protocol by simultaneous in situ metal NP and nanospace organization (PSSO) with 1,4-bis(trimethylsilyl)-1,4-dihydropyrazine (Si-DHP) as a strong reducing agent. SAFe(0) was easy to handle in air and could be recycled with a low iron-leaching rate in reaction cycles.

中文翻译：

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自组装多层铁（0）纳米粒子催化剂，用于无配体的碳-碳/碳-氮键形成反应。

自组装多层铁（0）纳米颗粒（NPs，6-10 nm），即硫改性的金负载的Fe（0）[SAFe（0）]，被开发用于无配体的一锅碳-碳/碳氮键形成反应。SAFe（0）是使用成熟的金属-纳米颗粒催化剂制备方案通过同时原位金属NP和带有1,4-双（三甲基甲硅烷基）-1,4-二氢吡嗪（Si -DHP）的纳米空间组织（PSSO）成功制备的作为强还原剂。SAFe（0）易于在空气中处理，并且可以在反应循环中以低铁浸出率进行回收。