Niobium-catalyzed Activation of CF3 Group on Alkene: Synthesis of Substituted Indenes
K Fuchibe, K Atobe, Y Fujita, K Mori, T Akiyama
Index: Fuchibe, Kohei; Atobe, Kohei; Fujita, Yukari; Mori, Keiji; Akiyama, Takahiko Chemistry Letters, 2010 , vol. 39, # 8 p. 867 - 869
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Citation Number: 6
Abstract
A CF 3 group attached to an alkene functionality was activated by a zero-valent niobium catalyst to generate niobium alkenylcarbenoid species. The niobium carbenoid species then underwent insertion to an internal aromatic C–H σ bond to give indene derivatives in good yields. Isomerization in terms of the alkene geometry was also observed.
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