From homogeneous to heterogeneous catalysis: zeolite supported metal complexes with C2-multidentate nitrogen ligands. Application as catalysts for olefin hydrogenation and cyclopropanation reactions
作者:M.J Alcón、A Corma、Marta Iglesias、F Sánchez
DOI:10.1016/s0022-328x(02)01469-9
日期:2002.8
MCM41) and their use, under heterogeneous conditions, for the hydrogenation and cyclopropanation reactions are reported. The catalytic activity and selectivity are higher to that observed under homogeneous conditions, as a consequence of the complex—and/or reagents—to-support interaction. The strength of such interactions allows the recovery and recycling of the supported catalysts for a number of cycles
预先形成的铑和铜配合物的固定,[Rh(N,N'-双[(S)-脯氨酰基-N-(2-氨基乙基-3-氨基丙基)三乙氧基甲硅烷基]乙二胺)(THF)] X,[Rh ((N,N'-双[(S)-苄基脯氨酰-N-(2-氨基乙基-3-氨基丙基)三乙氧基甲硅烷基乙二胺)(cod)] X,X = PF 6 },[Cu(N,N ' -双[(S)-脯氨酰基-N-(2-氨基乙基-3-氨基丙基)三乙氧基甲硅烷基]乙二胺)]] X,[Cu((N,N'-双[(S)-苄基脯氨酰基] -N)-报道了在沸石(USY,MCM41)上的(2-氨基乙基-3-氨基丙基)三乙氧基甲硅烷基乙二胺(CH 3 CN)] X,X = ClO 4 }及其在非均相条件下用于氢化和环丙烷化反应的报道。催化活性和选择性高于均相条件下的催化活性和选择性,这是由于配合物(和/或试剂)相互作用所致。这种相互作用的强度允许负载载体的催化剂在多个循环中进行回