The first immobilization of pyridine-bis(oxazoline) chiral ligands
The first immobilization of pyridine-bis(oxazoline) chiral ligands
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DOI：
10.1021/ol026787a
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发表时间：
2002-10-31
期刊：
影响因子：
5.2
通讯作者：
Mayoral, JA
中科院分区：
文献类型：
--
作者：
Cornejo, A;Fraile, JM;Mayoral, JA
在吡啶环中用乙烯基官能化的手性吡啶-双（恶唑啉）配体可以与苯乙烯和二乙烯基苯聚合以获得负载的手性配体。作为这种负载配体的有用性的证明，相应的钌配合物是苯乙烯与重氮乙酸乙酯的环丙烷化反应的催化剂，具有高达85%ee。
[GRAPHICS]A chiral pyridine-bis(oxazoline) ligand, functionalized with a vinyl group in the pyridine ring, can be polymerized with styrene and divinylbenzene to obtain supported chiral ligands. As proof of the usefulness of this supported ligands, the corresponding ruthenium complexes are catalysts for the cyclopropanation reaction of styrene with ethyl diazoacetate with up to 85% ee.