催化学报 ›› 2016, Vol. 37 ›› Issue (2): 250-257.DOI: 10.1016/S1872-2067(15)61021-X

• 论文 • 上一篇    下一篇

间苯二酚保护的抗菌Pd纳米粒子催化C-C偶联反应活性

Urvi Panchal, Krunal Modi, Manthan Panchal, Viren Mehta, Vinod K. Jain   

  1. 古吉拉特大学科学学院化学系, 艾哈迈达巴德 380009, 古吉拉特, 印度
  • 收稿日期:2015-10-08 修回日期:2015-10-17 出版日期:2016-01-30 发布日期:2016-01-31
  • 通讯作者: Vinod K. Jain

Catalytic activity of recyclable resorcinarene-protected antibacterial Pd nanoparticles in C-C coupling reactions

Urvi Panchal, Krunal Modi, Manthan Panchal, Viren Mehta, Vinod K. Jain   

  1. Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad 380009, Gujarat, India
  • Received:2015-10-08 Revised:2015-10-17 Online:2016-01-30 Published:2016-01-31

摘要:

合成了新型四甲氧基间苯二酚-四酰肼(TMRTH), 并作为还原剂和封端剂用于合成水分散性稳定的Pd纳米粒子(PdNPs). 采用紫外-可见光谱、透射电镜、能量散射谱和粉末X射线衍射对所得TMRTH-PdNPs样品进行了表征. 结果表明, 所制纳米粒子具有多分散性, 粒径为5 ± 2 nm, 并在Suzuki-Miyuara交叉偶联反应中可重复使用5次, 具有较高的催化效率. 该纳米催化剂在反应时间、催化剂用量和可重复使用性能等方面优于常规Pd催化剂. 另外, TMRTH-PdNPs样品对革兰(氏)阳性菌具有较好的抗菌活性, 因而有望用于一些生物领域.

关键词: 钯纳米粒子, 间苯二酚杯芳烃, Suzuki-Miyuara交叉偶联反应, 纳米催化, 重复使用性能

Abstract:

Novel tetra-methoxy resorcinarene tetra-hydrazide (TMRTH) has been synthesized and used as a reducing agent and a capping agent for the synthesis of water-dispersible stable palladium nanoparticles (PdNPs). The TMRTH-PdNPs were characterized by UV-Vis spectroscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, and powder X-ray diffraction. The synthesized nanoparticles are polydispersible with a size of 5 ± 2 nm and were found to be recyclable over five cycles maintaining a catalytic activity in the Suzuki-Miyuara cross-coupling reaction. The nanocatalyst was superior in catalytic performance to conventional palladium catalysts with respect to reaction time, catalyst loading and recyclability. TMRTH-PdNPs show promise for their use in biological applications as they exhibit good antibacterial activity against gram-positive bacteria.

Key words: Palladium nanoparticle, Resorcinarene, Suzuki-Miyuara cross-coupling reaction, Nanocatalysis, Recyclability