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一种用于选择性合成二苄胺的高活性蠕虫状铂钼纳米线。

A highly active worm-like PtMo nanowire for the selective synthesis of dibenzylamines.

作者信息

Lu Shuanglong, Xu Pengyao, Cao Xueqin, Gu Hongwei

机构信息

Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University Suzhou China 215123

出版信息

RSC Adv. 2018 Feb 26;8(16):8755-8760. doi: 10.1039/c8ra00787j. eCollection 2018 Feb 23.

Abstract

Worm-like nanowires are among the most active nanomaterials. In this study, we report the synthesis of dibenzylamine (DBA) motifs from reductive amination of either aldehydes or nitriles catalyzed by entirely new worm-like PtMo nanowires (PtMo WNWs). Under the assistance of H gas, PtMo WNWs can be prepared in a facile manner, following which, their structure and composition are characterized by TEM, XRD, XPS, Upon careful optimization of reaction parameters, the as-prepared PtMo WNWs work effectively in the activation of dihydrogen molecules, and both aldehydes and nitriles can be used as starting materials to fabricate DBAs under mild and green conditions. The reaction kinetics has been investigated, which reveals that the PtMo WNWs show superior activity in the conversion of imines into amines. This study provides a practical advancement in the preparation of amines. Moreover, the protocol reported herein is feasible for the synthesis of worm-like nanostructures with designed composition for various catalytic applications.

摘要

蠕虫状纳米线是最具活性的纳米材料之一。在本研究中,我们报道了由全新的蠕虫状铂钼纳米线(PtMo WNWs)催化醛或腈的还原胺化反应合成二苄胺(DBA)基团。在氢气的辅助下,可以简便地制备出PtMo WNWs,之后,通过透射电子显微镜(TEM)、X射线衍射(XRD)、X射线光电子能谱(XPS)对其结构和组成进行表征。在仔细优化反应参数后,所制备的PtMo WNWs在活化氢分子方面表现出高效性,并且醛和腈都可以用作起始原料,在温和且绿色的条件下制备DBA。研究了反应动力学,结果表明PtMo WNWs在将亚胺转化为胺的反应中表现出卓越的活性。本研究为胺的制备提供了切实的进展。此外,本文报道的方案对于合成具有设计组成的蠕虫状纳米结构以用于各种催化应用是可行的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20eb/9078585/041c5ab2acf2/c8ra00787j-s1.jpg

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