Insight into the palladium catalyzed oxidative arylation of benzofuran: Heteropoly acid oxidants evoke a Pd(II)/Pd(IV) mechanism.

Insight into the palladium catalyzed oxidative arylation of benzofuran: Heteropoly acid oxidants evoke a Pd(II)/Pd(IV) mechanism.
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DOI:
10.1016/j.tet.2013.02.061
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发表时间:
2013-06-01
期刊:
影响因子:
2.1
通讯作者:
DeBoef, Brenton
DeBoef, Brenton
中科院分区:
化学3区
文献类型:
--
作者:
Pereira, Kyle C.;Porter, Ashley L.;Potavathri, Shathaverdhan;LeBris, Alexis P.;DeBoef, Brenton

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The effects of oxidant and organic acid additives on the oxidative cross-coupling reactions of electron rich heterocycles such as benzofuran with benzene were studied. Both regioselectivity and reaction rate could be controlled by varying the condition parameters. Furthermore, mechanistic insight was achieved via kinetic studies which indicate that reactions that are oxidized by the heteropoly acid H4PMo11VO40 operate via a Pd(II)/Pd(IV) mechanisms, while reactions oxidized by either AgOAc or Cu(OAc)2 operate by a Pd(II)/Pd(0) mechanism.
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