Well-Defined Silica Grafted Molybdenum Bis(imido) Catalysts for Imine Metathesis Reactions
作者:Samir Barman、Nicolas Merle、Yury Minenkov、Aimery De Mallmann、Manoja K. Samantaray、Frédéric Le Quéméner、Kai C. Szeto、Edy Abou-Hamad、Luigi Cavallo、Mostafa Taoufik、Jean-Marie Basset
DOI:10.1021/acs.organomet.7b00115
日期:2017.4.24
Novel site-isolated tetracoordinated molybdenum complexes possessing bis(imido) ligands, [(≡Si–O)2Mo(═NR)2] (R = t-Bu, 2,6-C6H3-i-Pr2), were immobilized on partially dehydroxylated silica (SiO2-200) by a rigorous surface organometallic chemistry protocol. The newly developed materials adorned with bis(imido) functional units, which were previously exploited mainly as spectator ligands on silica-supported
具有双(亚氨基)配体 [(≡Si-O)2Mo(=NR)2] (R = t-Bu, 2,6-C6H3-i-Pr2) 的新型位点分离四配位钼配合物部分固定在通过严格的表面有机金属化学协议进行脱羟基二氧化硅 (SiO2-200)。新开发的装饰有双(亚氨基)功能单元的材料,以前主要用作二氧化硅负载的烯烃复分解钼催化剂上的观察配体,被发现是温和条件下亚胺交叉复分解的有效多相催化体系。