Palladium/Graphitic Carbon Nitride (g‐C3N4) Stabilized Emulsion Microreactor as a Store for Hydrogen from Ammonia Borane for Use in Alkene Hydrogenation,Angewandte Chemie International Edition

当前位置： X-MOL 学术 › Angew. Chem. Int. Ed. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Palladium/Graphitic Carbon Nitride (g‐C3N4) Stabilized Emulsion Microreactor as a Store for Hydrogen from Ammonia Borane for Use in Alkene Hydrogenation
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-10-16 , DOI: 10.1002/anie.201809882
Chenhui Han ₁ , Peng Meng ₁ , Eric R. Waclawik ₁ , Chao Zhang ₂ , Xin-Hao Li ₃ , Hengquan Yang ₄ , Markus Antonietti ₅ , Jingsan Xu ₁

Affiliation

Direct hydrogenation of C=C double bonds is a basic transformation in organic chemistry which is vanishing from simple practice because of the need for pressurized hydrogen. Ammonia borane (AB) has emerged as a hydrogen source through its safety and high hydrogen content. However, in conventional systems the hydrogen liberated from the high‐cost AB cannot be fully utilized. Herein, we develop a novel Pd/g‐C₃N₄ stabilized Pickering emulsion microreactor, in which alkenes are hydrogenated in the oil phase with hydrogen originating from AB in the water phase, catalysed by the Pd nanoparticles at the interfaces. This approach is advantageous for more economical hydrogen utilization over conventional systems. The emulsion microreactor can be applied to a range of alkene substrates, with the conversion rates achieving >95 % by a simple modification.

中文翻译：

钯/石墨氮化碳（g-C3N4）稳定的乳液微反应器，用于储存来自硼烷的氨用于烯烃加氢

C = C双键的直接氢化是有机化学中的一个基本转变，由于需要加压氢，这种简单转变从简单的实践中就消失了。氨硼烷（AB）因其安全性和高氢含量而成为氢源。但是，在常规系统中，无法充分利用从高成本AB中释放出的氢气。在这里，我们开发了一种新颖的Pd / g-C ₃ N ₄稳定的Pickering乳液微反应器，其中烯烃在油相中被水相中AB衍生的氢加氢，并在界面处被Pd纳米颗粒催化。与常规系统相比，该方法对于更经济地利用氢气是有利的。乳液微反应器可应用于多种烯烃底物，通过简单的改性，转化率可达到> 95％。

更新日期：2018-10-16

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11