催化学报

催化学报 ›› 2012, Vol. 33 ›› Issue (6): 1061-1066.DOI: 10.3724/SP.J.1088.2012.20131

• 研究论文 • 上一篇    

有序介孔有机金属 Au(I) 催化剂催化水相炔烃水合制备甲基酮

朱凤霞1,2,*, 周建峰1,2, 朱惠琴1,2, 李和兴3   

  1. 1江苏省低维材料化学重点建设实验室, 江苏淮安 223300; 2淮阴师范学院化学化工学院, 江苏淮安 223300; 3上海师范大学化学系, 上海 200234
  • 收稿日期:2012-01-13 修回日期:2012-03-16 出版日期:2012-05-30 发布日期:2012-05-30

Periodic Mesoporous Organogold(I)silica Catalysts for Hydration of Alkyne to Methyl Ketone in Water Medium

ZHU Fengxia1,2,*, ZHOU Jianfeng1,2, ZHU Huiqin1,2, LI Hexing3   

  1. 1Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, Huai’an 223300, Jiangsu, China; 2School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai’an 223300, Jiangsu, China; 3Department of Chemistry, Shanghai Normal University, Shanghai 200234, China
  • Received:2012-01-13 Revised:2012-03-16 Online:2012-05-30 Published:2012-05-30

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摘要： 采用表面活性剂自组装、有机金属硅烷与苯基硅烷共聚法制备了有机金属 Au(I) 嵌于介孔材料孔壁的非均相催化剂 Au(I)-PPh2-PMO(Ph). 结果表明, Au(I)-PPh2-PMO(Ph) 催化剂的活性位分散均匀, 孔道不易堵塞, 对反应物的扩散与传质影响较小, 其催化活性不仅明显高于后嫁接法制得的 Au(I)-PPh2-PMO(Ph)-G 和均相 Au(PPh3)Cl 催化剂, 且可以重复使用, 显示出较好的应用前景.

关键词: 非均相有机金属催化剂, 金, 周期性有机硅, 苯基功能化, 炔烃水合, 水介质

Abstract: A novel periodic mesoporous Au(I) organometalsilica as an active and reusable catalyst for alkyne hydration reaction was synthesized by co-condensation of phenyl silane and organometal bridged silane. Compared with the Au-PPh2-PMO(Ph)-G prepared by the grafting method, the Au-PPh2-PMO(Ph) catalyst showed high dispersion of Au(I) active sites, straightway mesopore channels, and the reduced diffusion limit. During the hydration of terminal alkynes, the Au-PPh2-PMO(Ph) catalyst not only exhibited higher catalytic efficiency than the un-immobilized Au(PPh3)Cl catalyst but also could be used repetitively, showing good potential in industrial application.

Key words: heterogenized organometallic catalyst, gold, peroidic organogold(I)silica, phenyl-functionalization, alkyne hydration reaction, water medium