Cobalt-catalyzed regioselective [3+2] annulation of ortho-formyl and acetyl substituted phenylboronic acids with alkynes |
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| Authors: | Mitsuhiro Ueda Tamami Ueno Yuki Suyama Ilhyong Ryu |
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| Affiliation: | 1. Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan;2. Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan, ROC |
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| Abstract: | ![]()
Treatment of alkynes with ortho-formyl and acetyl phenylboronic acids in the presence of a cobalt catalyst resulted in the formation of 2,3-disubstituted indenols in good yields. When aryl silyl alkynes were used, 2-aryl-3-silyl indenols were obtained regioselectively in good yields. |
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| Keywords: | 2,3-Disubstituted indenol Silyl aryl alkyne Cobalt [3+2] annulation Corresponding author. |
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