磁性Se/Fe/PCN催化烯烃在氧气中的氧化裂解反应

Magnetic Se/Fe/PCN-Catalyzed Oxidative Cracking Alkenes in O_(2)

烯烃的氧化裂解反应不仅用于羰基化合物的合成,也可用于生物质转化和有机污染物降解中,是一个有潜在工业应用价值的有机化学反应.开发适合的催化剂,从而能够促进该反应使用分子氧为廉价、安全的氧化剂,并在温和条件下发生,是有机化学与材料化学交叉学科的一个有意义的研究课题.在本工作中设计制备了Se/Fe/PCN催化剂.研究表明,该材料有着优异的催化活性,可以催化苯乙烯衍生物的氧化裂解反应.值得一提的是,该反应选择性较佳,在产物中醛类的选择性可以达到70%~90%.该催化剂可以被方便地磁力分离,并投入到下一轮反应重复利用.

Oxidative cracking reaction of alkenes is applied not only in the synthesis of carbonyl compounds,but also in biomass conversion and degradation of organic pollutants.It is an organic chemical reaction with potential industrial application value.Developing a suitable catalyst to promote the reaction using molecular oxygen as a cheap and safe oxidant under mild conditions is a meaningful research topic in the interdisciplinary field of organic chemistry and material chemistry.In this work,Se/Fe/PCN catalyst was designed and prepared.The experimental results showed that the material was of excellent catalytic activity for the oxidative cracking of styrene derivatives.Notably,the selectivity of the reaction is good,and the selectivity of aldehydes in the product could reach 70%~90%.The catalyst was magnetically separable,and could be reused for the next turn of reaction.