We describe an efficient method for the oxidative cleavage of alkynes to carboxylic acids using a combination of RuO2/Oxone/NaHCO3 in a CH3CN/H2O/EtOAc solvent system. Both internal and terminal alkynes, regardless of their electron density, can be oxidized to carboxylic acids in excellent yield (up to 99%). H-1 NMR spectroscopy and ESIMS experiments provided evidence for alpha-diketones and anhydrides as possible intermediates in these oxidation reactions.
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Univ Hong Kong, Inst Mol Technol Drug Discovery & Synth, Open Lab Chem Biol, Hong Kong, Hong Kong, Peoples R ChinaUniv Hong Kong, Inst Mol Technol Drug Discovery & Synth, Open Lab Chem Biol, Hong Kong, Hong Kong, Peoples R China
Che, Chi-Ming
Yip, Wing-Ping
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Univ Hong Kong, Inst Mol Technol Drug Discovery & Synth, Open Lab Chem Biol, Hong Kong, Hong Kong, Peoples R ChinaUniv Hong Kong, Inst Mol Technol Drug Discovery & Synth, Open Lab Chem Biol, Hong Kong, Hong Kong, Peoples R China
Yip, Wing-Ping
Yu, Wing-Yiu
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Univ Hong Kong, Inst Mol Technol Drug Discovery & Synth, Open Lab Chem Biol, Hong Kong, Hong Kong, Peoples R ChinaUniv Hong Kong, Inst Mol Technol Drug Discovery & Synth, Open Lab Chem Biol, Hong Kong, Hong Kong, Peoples R China
机构:
Chuo Univ, Fac Sci & Engn, Dept Appl Chem, Bunkyo Ku, 1-13-27 Kasuga, Tokyo 1128551, JapanChuo Univ, Fac Sci & Engn, Dept Appl Chem, Bunkyo Ku, 1-13-27 Kasuga, Tokyo 1128551, Japan
Iio, Kei
Sachimori, Shusuke
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Tohoku Univ, Grad Sch Life Sci, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, JapanChuo Univ, Fac Sci & Engn, Dept Appl Chem, Bunkyo Ku, 1-13-27 Kasuga, Tokyo 1128551, Japan
Sachimori, Shusuke
Watanabe, Tomomi
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Tohoku Univ, Grad Sch Life Sci, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, JapanChuo Univ, Fac Sci & Engn, Dept Appl Chem, Bunkyo Ku, 1-13-27 Kasuga, Tokyo 1128551, Japan
Watanabe, Tomomi
Fuwa, Haruhiko
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Chuo Univ, Fac Sci & Engn, Dept Appl Chem, Bunkyo Ku, 1-13-27 Kasuga, Tokyo 1128551, JapanChuo Univ, Fac Sci & Engn, Dept Appl Chem, Bunkyo Ku, 1-13-27 Kasuga, Tokyo 1128551, Japan