摘要
α-蒎烯氧化时通常用到挥发性溶剂,不够环保。而采用新型氨基酸离子液体-纳米金属有机框架Fe-MOFs协同催化体系,可实现无溶剂条件下α-蒎烯的清洁、温和转化。研究结果表明:用均苯四甲酸根(PMA)作配体时制备的Fe-PMA-60纳米棒可与氨基酸离子液体[C_(4)mim]Cys构成协同催化体系,以TBHP为氧源,在无溶剂及60℃条件下反应10h,α-蒎烯转化率为99.8%,主产物马鞭草烯酮、马鞭草烯醇的总选择性为81.0%。Fe-PMA-60重复使用8次,催化结果没有显著的变化。
In view of the shortcoming of using volatile solvents in usual oxidation processes,a novel cooperative system based on amino acid ionic liquid(AAIL)and nanoscale Fe-based metal-organic frameworks(Fe-MOFs)may render solvent-free,clean and mild transformation ofα-pinene.The results show that Fe-PMA-60 nanorods containing pyromellitate(PML)ligand can form a synergistic catalytic system in the presence of AAIL([C_(4)mim]Cys).With tert-butyl hydroperoxide as the oxygen source,99.8%conversion of substrate and 81.0%total selectivity for verbenone and verbenol can be obtained after 10 h reaction at 60℃under solvent-free conditions.Fe-PMA-60 can be reused for at least nine consecutive runs without an apparent degradation in catalytic activity.
作者
张敏
李丹
李金玲
陈米雪
肖毅
黄红梅
毛丽秋
尹笃林
ZHANG Min;LI Dan;LI Jin-ling;CHEN Mi-xue;XIAO Yi;HUANG Hong-mei;MAO Li-qiu;YIN Du-lin(National&Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources,College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China;Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research,Ministry of Education,College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China)
出处
《湖南师范大学自然科学学报》
CAS
北大核心
2023年第4期21-26,共6页
Journal of Natural Science of Hunan Normal University
基金
国家自然科学基金资助项目(21475042,22278122)
湖南省自然科学基金项目(2023JJ30389)
湖南省教育厅科学研究基金项目(22C0030)。
关键词
金属有机框架
Α-蒎烯
氨基酸离子液体
催化氧化
metal-organic frameworks
α-pinene
amino acid ionic liquid
catalytic oxidation
