Direct proof for O=Mn-V(salen) complexes
Direct proof for O=Mn-V(salen) complexes
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DOI：
10.1002/anie.199717181
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发表时间：
1997-09-01
期刊：
影响因子：
--
通讯作者：
Plattner, DA
中科院分区：
文献类型：
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作者：
Feichtinger, D;Plattner, DA
许多第一行过渡金属能够将氧转移到有机底物;例如，烯烃的环氧化是合成中特别相关的实例。[31反应性物质通常被配制为具有末端金属-氧代多重键的高价络合物。这种复合物的分离和表征仅在少数情况下是成功的。Kochi和同事们证明了平面四齿配体salen（salen= N，N '-双（水杨醛烯）乙二胺二价阴离子）的阳离子Mn“络合物是用于与多种末端氧化剂如
Many first-row transition metals are able to transfer oxygen to organic substrates;[','] the epoxidation of olefins is an example of particular relevance in synthesis.[31 The reactive species is usually formulated as a high-valent complex with a terminal metal-oxo multiple bond. Isolation and characterization of such complexes has been successful in only a few cases. Kochi and co-~ orkers [~'demonstrated that cationic Mn"'complexes of the planar tetradentate ligand salen (salen= N, N'-bis (sa1icy1idene) ethylenediamine dianion) are highly efficient catalysts for epoxidation with a variety of terminal oxidants such as