An enantiomerically pure adamantylimido molybdenum alkylidene complex. An effective new catalyst for enantioselective olefin metathesis

被引:59
作者
Tsang, WCP
Jernelius, JA
Cortez, GA
Weatherhead, GS
Schrock, RR
Hoveyda, AH [1 ]
机构
[1] Boston Coll, Merkert Chem Ctr, Dept Chem, Chestnut Hill, MA USA
[2] MIT, Dept Chem, Cambridge, MA 02139 USA
关键词
D O I
10.1021/ja021204d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An enantiomerically pure Mo-based complex that bears an alkylimido ligand is prepared and characterized through NMR spectroscopy and X-ray analysis. Mo complex 4 is the only reported chiral alkylimido catalyst; all previous chiral complexes are arylimido systems. These studies show that the chiral Mo catalyst exists exclusively as the syn isomer and that it offers unique reactivity and selectivity profiles in asymmetric olefin metathesis.
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收藏
页码:2591 / 2596
页数:6
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