New homogeneously and heterogeneously [Pd/Cu]-catalysed C3-alkenylation of free NH-indoles

New homogeneously and heterogeneously [Pd/Cu]-catalysed C3-alkenylation of free NH-indoles
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DOI:
10.1016/j.molcata.2007.04.011
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发表时间:
2007-08
影响因子:
--
通讯作者:
L. Djakovitch;P. Rougé
L. Djakovitch;P. Rougé
中科院分区:
化学2区
文献类型:
--
作者:
L. Djakovitch;P. Rougé

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本文报道了一种新的钯/铜催化的游离NH-吲哚的C3-烯基化反应。在温和的反应条件下(10mol%Pd-催化剂和10mol%Cu-催化剂,70 ℃,空气),使用均相或非均相的杂环[Pd/Cu]-催化剂,取代的吲哚被完全(58-82%的分离产率)和选择性(75-100%的选择性)转化为预期的2-取代的-3-乙烯基吲哚。
A new palladium/copper catalytic procedure for the C3-alkenylation of free NH-indoles is reported. Using homogeneous or heterogeneous hetero-bimetallic [Pd/Cu]-catalysts under mild reaction conditions (10mol% Pd-catalyst and 10mol% Cu-catalyst, 70°C, air), substituted indoles are fully (58–82% isolated yields) and selectively (75–100% selectivity) converted to the expected 2-substituted-3-vinyl indoles.