Palladium-Catalyzed, Chelation-Assisted Stereo- and Regioselective Synthesis of Tetrasubstituted Olefins by Oxidative Heck Arylation

被引:45
作者
Lee, Hyun Seung [1 ,2 ]
Kim, Ko Hoon [1 ,2 ]
Kim, Sung Hwan [1 ,2 ]
Kim, Jae Nyoung [1 ,2 ]
机构
[1] Chonnam Natl Univ, Dept Chem, Kwangju 500757, South Korea
[2] Chonnam Natl Univ, Inst Basic Sci, Kwangju 500757, South Korea
基金
新加坡国家研究基金会;
关键词
chelation; Morita-Baylis-Hillman adducts; oxidative Heck arylation; palladium; BAYLIS-HILLMAN REACTION; HIGHLY SELECTIVE ARYLATION; ELECTRON-DEFICIENT ARENES; C-H FUNCTIONALIZATION; ARYLBORONIC ACIDS; STEREOSELECTIVE-SYNTHESIS; METALATION-DEPROTONATION; COUPLING REACTION; INTERNAL ALKYNES; ALLYLIC ESTERS;
D O I
10.1002/adsc.201200306
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
An efficient synthesis of tetrasubstituted olefins was achieved via a palladium-catalyzed, chelation-assisted oxidative Heck arylation protocol from trisubstituted olefins bearing a tether with a directing group in a completely stereo- and regioselective manner. The stereo- and regioselectivity as well as excellent yields of tetrasubstituted olefins originated from the stabilization of a palladium intermediate by chelation between the palladium center and a directing group.
引用
收藏
页码:2419 / 2426
页数:8
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