Chlorinative Cyclization of 1,6-Enynes by Enantioselective Palladium(II)/Palladium(IV) Catalysis

Chlorinative Cyclization of 1,6-Enynes by Enantioselective Palladium(II)/Palladium(IV) Catalysis
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DOI:
10.1002/adsc.201000926
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发表时间:
2011-05
影响因子:
5.4
通讯作者:
K. Takenaka;Shintaro Hashimoto;S. Takizawa;H. Sasai
K. Takenaka;Shintaro Hashimoto;S. Takizawa;H. Sasai
中科院分区:
化学2区
文献类型:
--
作者:
K. Takenaka;Shintaro Hashimoto;S. Takizawa;H. Sasai

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利用手性螺环双(异恶唑啉)配体(SPRIX)开发了一种新型的钯(II)/钯(IV)环不对称催化反应。钯-SPRIX配合物催化1,6-烯炔的分子内氯代环化反应对映选择性地得到α-亚甲基-γ-内酯衍生物。
A novel asymmetric catalysis via a palladium(II)/palladium(IV) cycle has been developed by utilizing a chiral spiro bis(isoxazoline) ligand (SPRIX). Intramolecular chlorinative cyclization of 1,6-enynes catalyzed by a palladium-SPRIX complex proceeded enantioselectively to afford α-methylene-γ-lactone derivatives.