cyanosilylation of carbonyl compounds. For acetophenone: (i) the coordination number and μ-OH groups presence seem to be decisive factors to obtain a better catalytic behavior and (ii) the presence of Lewis base moieties (CO groups not coordinated to indium cation), besides the Lewis acid sites, creates a two-component catalytic system, based on the “dual activation” phenomenon that makes InPF-15 the best catalyst
四个新的
铟金属-有机骨架,MOF,即[In 2(hfipbb)3(1,10-phen)2 ]·2H 2 O(InPF-12),[In 2(hfipbb)3(2,2'- bipy)2 ]·2H 2 O(InPF-13),[In 2(hfipbb)3(4,4'-bipy)](InPF-14)和[In 4(OH)4(hfipbb)4(4, 4′-bipy)](InPF-15)(InPF =
铟聚合物骨架,hfipbb =六
氟异亚丙基双
苯甲酸酯,phen =
菲咯啉,bipy =联
吡啶),已在无溶剂的羰基化合物
氰基
硅烷化反应中得到有效的
路易斯酸催化剂。对于
苯乙酮:(i)配位数和μ-OH基团的存在似乎是获得更好催化行为的决定性因素,并且(ii)除Lewis碱外,还有Lewis碱部分(CO基团未与
铟阳离子配位)酸性位点,基于使InPF-15产生的“双重活化”现象,创建了一种双组分催化体系这类反应中最好的催