Development of cascade cyclization reaction via the direct activation of propargylalcohols
Project/Area Number |
26460009
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Chemical pharmacy
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Research Institution | Tokushima Bunri University (2015-2016) The University of Tokushima (2014) |
Principal Investigator |
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | プロパルギルアルコール / 活性化 / パラジウム / ルイス酸 / 求核剤 / 連続反応 / 連続的環化反応 |
Outline of Final Research Achievements |
Propargylic compounds having an elimination group at the propargylic position are known as useful substrates in the palladium-catalyzed reactions. The reaction often employs activated propargylic alcohol derivatives such as propargylic esters, carbonates and halides, and no examples have been reported about the palladium-catalyzed reactions of underivatized propargylic alcohols with soft nucleophiles. The author developed palladium and boric acid-catalyzed cyclization of underivatized 1,3-diaryl propargylic alcohols with 1,3-cyclohexanediones. Boric acid plays a role for the efficient activation of the propargylic alcohols. Various substituted tetrahydrobenzofuranones were obtained in moderate to good yields. Reactions using 4-hydroxy-2-pyrones as the nucleophile also proceeded to afford the substituted dihydrofuropyranones.
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Report
(4 results)
Research Products
(21 results)
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[Journal Article] Total Synthesis of Palau’amine2015
Author(s)
K. Namba, K. Takeuchi, Y. Kaihara, M. Oda, A. Nakayama, A. Nakayama, M. Yoshida, and K. Tanino
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Journal Title
Nature Communications
Volume: 6
Issue: 1
Pages: 8731-8731
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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