AgBF 4/[Bmim] BF 4-Catalyzed [3+ 2] Cycloaddition of Cyclic Diazodicarbonyl Compounds: Efficient Synthesis of 2, 3-Dihydrofurans and Conversion to 3-Acylfurans
L Xia, YR Lee, SH Kim, WS Lyoo
Index: Xia, Likai; Lee, Yong Rok; Kim, Sung Hong; Lyoo, Won Seok Bulletin of the Korean Chemical Society, 2011 , vol. 32, # 5 p. 1554 - 1558
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Citation Number: 9
Abstract
Abstract A novel and efficient method for the synthesis of 2, 3-dihydrofurans bearing a variety of substituents on the dihydrofuran ring was achieved by the reaction of cyclic diazodicarbonyl compounds with styrene and vinyl acetate. The key strategy was AgBF/[Bmim] BF-catalyzed [3+ 2] cycloaddition. The synthesized dihydrofurans with an acetate group were further converted to the corresponding 3-acylfurans.
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