Synthesis and catalytic activity of perfluoroalkylated pyridine–palladium(II) complex toward olefin hydrogenation in scCO2 and conventional organic solvents
作者:Ibrahim Kani、Filiz Sisman
DOI:10.1016/j.molcata.2006.06.028
日期:2006.11
The perfluoroalkylated pyridine, (o-COOCH2(CF2)7CF3-NC5H4), has been synthesized in two step from nicotinic acid and then the title compound, [Pd(o-COOCH2-(CF2)7CF3-NC5H4)2(OAc)2], obtained by reaction with Pd(OAc)2. The catalytic activity of the Pd(II) complex examined for hydrogenation of styrene, 1-octene, t-2-octene and cyclohexene for both in supercritical carbon dioxide and in organic solvents
全氟烷基化吡啶(o -COOCH 2(CF 2)7 CF 3 -NC 5 H 4)是由烟酸和标题化合物[Pd(o -COOCH 2-(CF 2))分两步合成的通过与Pd(OAc)2反应获得7 CF 3 -NC 5 H 4)2(OAc)2 ] 。检测Pd(II)配合物对苯乙烯,1-辛烯,t的氢化反应的催化活性在超临界二氧化碳和有机溶剂中均可使用-2-辛烯和环己烯。研究了温度和二氢压力的影响,以及钯和底物浓度的影响(T = 320–353 K,p(H 2)6–30 bar,[Pd] =(1.12–2.62)× 10 -5 M,[苯乙烯] =(8.70-34.8)×10 -3 M)。实验确定的速率定律为r = k cat [Pd] a [苯乙烯] b p(H 2)c(a = 1,b = 1和c = 0.14)其中k cat = 4.4×10在320 K下为-2 (mol -1