Low-valent Nb(III)-mediated synthesis of 1,1,2-trisubstituted-1H-indenes from aliphatic ketones and aryl-substituted alkynes |
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| Authors: | Obora Yasushi Kimura Masahiro Tokunaga Makoto Tsuji Yasushi |
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| Institution: | Catalysis Research Center and Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, 001-0021, Japan. |
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| Abstract: | A variety of 1,1,2-trisubstituted-1H-indenes are synthesized by the reaction of aliphatic ketones, aryl-substituted alkynes and NbCl3(DME) in 1,2-dichloroethane under reflux conditions. |
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