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以周期性介孔有机硅(periodic mesoporous organosilicas,PMOs)中的有机桥联基团亚苯基为反应位对其进行氯甲基化反应,得到氯甲基官能化的PMOs-CH2Cl,然后再通过-CH2Cl和V-Saldien配合物中的-NH-进行反应得到钒席夫碱配合物官能化的杂化材料V-PMOs催化剂.采用XRD、N2吸附、FTIR、UV-vis、ICP和催化反应等手段对所制杂化材料的物化和催化性能进行了较为详细的研究,结果表明采用该法可将钒席夫碱配合物成功键联到PMOs上,且所制杂化材料同采用类似方法制备的V-SBA-15催化材料相对比,在无溶剂以叔丁基过氧化氢为引发剂,氧气为氧化剂的环己烷氧化反应中表现出定向转化为环己酮和环己醇的总选择性,具有点击反应的特性.
Cyclomethylation of the organic bridging group phenylene in periodic mesoporous organosilicas (PMOs) gave chloromethyl-functionalized PMOs-CH2Cl, which was then passed -CH2Cl and -NH- in V-Saldien complex to obtain vanadium Schiff base complex-functionalized hybrid V-PMOs catalyst.Using XRD, N2 adsorption, FTIR, UV-vis, ICP and catalytic reactions The physicochemical and catalytic properties of the prepared hybrid materials were studied in detail. The results show that this method can successfully bond vanadium Schiff base complexes to PMOs and the prepared hybrid materials are prepared in a similar way Of the V-SBA-15 catalytic material, showed a general choice of directed conversion to cyclohexanone and cyclohexanol in cyclohexane oxidation without solvent using t-butyl hydroperoxide as initiator and oxygen as oxidant Sexual, click response characteristics.