کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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66236 | 48420 | 2012 | 7 صفحه PDF | دانلود رایگان |
A series of Mn-complexes with tetradentate N4 ligands, introducing aromatic groups into 2-pyridylmethyl positions of N,N′-dimethyl-N,N′-bis(2-pyridylmethyl)ethane-1,2-diamine (mep), N,N′-dimethyl-N,N′-bis(2-pyridylmethyl)cyclohexane-trans-diamine (mcp), have been synthesized and applied for epoxidation of olefins using H2O2 as the oxidant. The Mn-complexes still possessed an octahedral mononuclear structure in a cis-α topology. These complexes showed good regioselectivity, high yields and turnover frequency (even up to 228,000 h−1) with low catalyst loading (0.1–0.01 mol%) for epoxidation of a family of olefins (including internal aromatic olefins, internal and terminal aliphatic olefins and diolefins).
A series of Mn-complexes with tetradentate N4 ligands have been synthesized and applied for the epoxidation of olefins using H2O2 as the oxidant. The complexes 1 and 3 (C1 and C3) showed excellent selectivity, high yields and turnover frequency (even up to 228,000 h−1) with low catalyst loading (0.1–0.01 mol%) for epoxidation of a family of olefins (including internal aromatic olefins, internal and terminal aliphatic olefins and diolefins).Figure optionsDownload high-quality image (98 K)Download as PowerPoint slideHighlights
► A series of tetradentate N4 Mn-complexes have been synthesized and characterized.
► The topologies of these Mn-complexes have been determined by the X-ray diffraction.
► C1 and C3 showed excellent selectivity, high yields and TOF with low catalyst loading for the epoxidation of a family of olefins with H2O2.
Journal: Journal of Molecular Catalysis A: Chemical - Volumes 353–354, February 2012, Pages 185–191