Development of a one-pot sequential Sonogashira coupling for the synthesis of benzofurans
M Csékei, Z Novák, A Kotschy
Index: Csekei, Marton; Novak, Zoltan; Kotschy, Andras Tetrahedron, 2008 , vol. 64, # 37 p. 8992 - 8996
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Citation Number: 48
Abstract
An efficient one-pot protocol was developed for the construction of the benzofuran system from aryl halides and protected iodophenols using carbinol-based acetylene sources. The sequence includes alternating palladium-catalyzed Sonogashira couplings and deprotection steps concluded by a ring closure. The developed one-pot procedure was compared with the stepwise approach and its efficiency was also demonstrated by the ...
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