α,β-不饱和醛高选择性加氢研究进展  

Research Progress on Highly Selective Hydrogenation of α,β-unsaturated Aldehydes

作　　者：陈浦 CHEN Pu(SINOPEC Maoming Petrochemical Co.,Ltd.,Guangdong Maoming 525000;Sinopec Research Institute of Petroleum Processing Co.,Ltd.,Beijing 100083,China)

机构地区：[1]中国石化集团茂名石油化工有限公司,广东茂名525000 [2]中石化石油化工科学研究院有限公司,北京100083

出　　处：《广州化工》2024年第3期17-19,56,共4页GuangZhou Chemical Industry

摘　　要：α,β-不饱和醛选择性加氢制备不饱和醇是一类具有挑战性的反应,是生产药品,香水和香料等有价值中间体的有效方法之一。对单金属非均相催化剂来讲,不饱和醇的形成在热力学上比饱和醛的形成更不利。因此,常需要高效的催化剂来达到高选择性。与单金属催化剂相比,双金属合金催化剂对不饱和醇的选择性显著提高。本文主要介绍了近年来关于α,β-不饱和醛在双金属合金催化剂上选择性加氢的研究进展。并主要综述了在不同金属表面的作用以及促进不饱和醛通过其C=O键吸附的因素,其中最明显的影响因素是通过表面的电子修饰作用和亲电性位点的形成。Selective hydrogenation ofα,β-unsaturated aldehydes to unsaturated alcohols is a challenging class of reactions and is one of the most effective methods for the production of valuable intermediates such as pharmaceuticals,perfumes and fragrances.On mono-metallic heterogeneous catalysts,the formation of unsaturated alcohols is thermodynamically more unfavorable than that of saturated aldehydes.Therefore,efficient catalysts are often required to achieve high selectivity.Compared with single metal catalysts,the selectivity of bimetal and alloy catalysts for unsaturated alcohols is significantly improved.The research progress on selective hydrogenation ofα-β-unsaturated aldehydes on bimetallic alloy catalysts was recent years was reviewed.The effects on the surface of different metals and the factors that promoted the adsorption of unsaturated aldehydes through their C=O bonds were reviewed.The most obvious influencing factors were the electron modification on the surface and the formation of electrophilic sites.

关 键 词：α β-不饱和醛 选择性加氢 双金属 合金催化剂 

分 类 号：O643.37[理学—物理化学]