High activity of iron containing metal–organic-framework in acylation of p-xylene with benzoyl chloride
High activity of iron containing metal–organic-framework in acylation of p-xylene with benzoyl chloride
复制标题
DOI：
10.1016/j.cattod.2011.08.001
复制
发表时间：
2012-01
期刊：
影响因子：
5.3
通讯作者：
Lenka Kurfiřtová;You-Kyong Seo;Y. Hwang;Jong‐San Chang;J. Čejka
中科院分区：
文献类型：
--
作者：
Lenka Kurfiřtová;You-Kyong Seo;Y. Hwang;Jong‐San Chang;J. Čejka
考察了金属有机骨架催化剂Cu3(BTC)2、MIL-100(Fe)和MIL-100(Cr)在对二甲苯与苯甲酰氯的酰化反应中的催化性能，并与大孔分子筛Beta和USY的催化性能进行了比较。结果表明，MIL-100(Fe)具有较高的苯甲酰氯转化率和良好的对二甲苯酰化反应选择性。MIL-100(Fe)催化剂的性能优于沸石等传统多相催化剂。在优化的反应条件下，以MIL-100(Fe)为催化剂，反应20~30min，苯甲酰氯转化率可达100%。假设与铁的存在有关的不饱和Lewis酸位具有催化该酰化反应的最佳酸强度。
Catalytic behavior of metal–organic-frameworks (MOFs) Cu3(BTC)2, MIL-100(Fe) and MIL-100(Cr) was investigated in p-xylene acylation with benzoyl chloride and compared with the behavior of large pore zeolites Beta and USY. It has been clearly shown that MIL-100(Fe) exhibit much higher conversion of benzoyl chloride with excellent selectivity in p-xylene acylation. The performance of MIL-100(Fe) catalyst was favorable with those of other conventional heterogeneous catalysts like zeolites. Conversion of benzoyl chloride equal to 100% was achieved over MIL-100(Fe) with 20–30min under optimized reaction conditions. It is assumed that unsaturated Lewis acid sites associated with the presence of Fe exhibit optimum acid strength for catalyzing this acylation reaction.