Intramolecular Aromatic Carbenoid Insertion of Biaryldiazoacetates for the Regioselective Synthesis of Fluorenes

…, Y Ohk, SH Park, Y Jung, S Chang

文献索引：Kim, Jinho; Ohk, Youhwa; Park, Sae Hume; Jung, Yousung; Chang, Sukbok Chemistry - An Asian Journal, 2011 , vol. 6, # 8 p. 2040 - 2047

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被引用次数: 20

摘要

Abstract The rhodium-or copper-catalyzed intramolecular aromatic carbenoid insertion of biaryldiazoacetates offers a convenient route to fluorene carboxylates with high yields. Whereas, thermal conditions provided a mixture of two regioisomeric products when substituted biaryldiazoacetates were employed as substrates. The developed catalytic conditions displayed an excellent level of regioselectivity, presumably owing to steric ...