Asymmetric synthesis of medium-sized rings by intramolecular Au(I)-catalyzed cyclopropanation.
Asymmetric synthesis of medium-sized rings by intramolecular Au(I)-catalyzed cyclopropanation.
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DOI:
10.1021/ja8085005
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发表时间:
2009-02-18
影响因子:
15
通讯作者:
Toste FD
中科院分区:
文献类型:
--
作者:
Watson ID;Ritter S;Toste FD
An efficient method for the asymmetric gold(I)-catalyzed preparation of medium sized rings has been developed. The method provides 7- to 9-membered rings in excellent yield. High enantioselectivities can be achieved for 7- and 8-membered ring products employing chiral gold(I) complexes. The results provide insight into the mechanism, showing the fluxional nature of gold(I)-stabilized vinyl carbenoid intermediates.
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