PdII/PdIV Catalytic Enantioselective Synthesis of Bicyclo[3.1.0]hexanes via Oxidative Cyclization of Enynes

PdII/PdIV Catalytic Enantioselective Synthesis of Bicyclo[3.1.0]hexanes via Oxidative Cyclization of Enynes
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DOI:
10.1021/ja809965e
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发表时间:
2009-03-18
影响因子:
15
通讯作者:
Sasai, Hiroaki
Sasai, Hiroaki
中科院分区:
化学1区
文献类型:
--
作者:
Tsujihara, Tetsuya;Takenaka, Kazuhiro;Sasai, Hiroaki

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第一个不对称的Pd-II/Pd-IV催化剂已通过采用高价碘试剂和手性配体SPRIX的组合实现。Pd-i-Pr-SPRIX配合物催化烯炔衍生物的对映选择性环化反应,得到具有双环[3.1.0]己烷骨架的内酯,ee值高达95%。
The first asymmetric Pd-II/Pd-IV catalysis has been achieved by employing the combination of a hypervalent iodine reagent and a chiral ligand, SPRIX. Enantioselective cyclization of enyne derivatives catalyzed by the Pd-i-Pr-SPRIX complex furnished lactones bearing a bicyclo[3.1.0]hexane skeleton with up to 95% ee.