Nitration of Aromatic Compound Catalyzed by Keggin Heteropolyacid Anion Based Bronsted Acidic Ionic Salts

摘要：

Novel Keggin heteropolyacid anion based Br?nsted acidic ionic salts SO3H(CH2)4MimnH3-nPMo12O40 (n=1, 2, 3) were synthesized and used as catalysts in the nitration of aromatic compound in HNO3 (67%). The catalytic activity was in the order of (CH2)4SO3HMim3PMo12O40>(CH2)4SO3HMim2HPMo12O40>(CH2)4SO3HMimH2PMo12O40. Effect of catalyst loading, quantity of nitro acid and temperature on nitration of toluene was discussed, and 87.7% yield and good para selectivity with 1.19 ratio of ortho to para can be obtained with optimized catalyst (CH2)4SO3HMim3PMo12O40. The catalyst can be easily separated from the products and reused for three times without significant loss of activity.

作者: YANG Hongwei TANG Yongxing QI Xiufang L(U) Chunxu CHENG Guangbin

作者单位: School of Chemical Engineering,Nanjing University of Science &Technology,Nanjing 210094,China Laboratary of Matter Characteristic Research at Extreme Conditions,Southwest University of Science &

会议类型: 国际会议

会议名称: 2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)

会议地点: 南京

会议语种:英文

页码: 187-191

在线出版日期: 2011-09-20（万方平台首次上网日期，不代表论文的发表时间）