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Ghotekar GS, Shinde RA, Saswade SS, Muthukrishnan M. Palladium-Catalyzed Oxidative Cyclization of α-Allenols in the Presence of TBN: Access to 3(2 H)-Furanones. J Org Chem 2023; 88:4112-4122. [PMID: 36912461 DOI: 10.1021/acs.joc.2c02457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
A new palladium-catalyzed oxidative cyclization of α-allenols is described. The readily accessible α-allenols participate in intra-molecular oxidative cyclization in the presence of TBN to grant access to multisubstituted 3(2H)-furanones, which are common motifs in several biologically important natural products and pharmaceuticals.
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Affiliation(s)
- Ganesh S Ghotekar
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ravi A Shinde
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sagar S Saswade
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
| | - M Muthukrishnan
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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2
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Ghotekar GS, Shirsath SR, Shaikh AC, Muthukrishnan M. 1,6-Conjugate addition initiated formal [4+2] annulation of p-quinone methides with sulfonyl allenols: a unique access to spiro[5.5]undeca-1,4-dien-3-one scaffolds. Chem Commun (Camb) 2020; 56:5022-5025. [DOI: 10.1039/d0cc01005g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An expedient one-pot synthesis of carbocyclic spiro[5.5]undeca-1,4-dien-3-ones via 1,6-conjugate addition initiated formal [4+2] annulation sequences by employing p-quinone methides and sulfonyl allenols.
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Affiliation(s)
- Ganesh S. Ghotekar
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Sachin R. Shirsath
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Aslam C. Shaikh
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411008
- India
| | - M. Muthukrishnan
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
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3
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Yadav D, Menon RS. Recent developments in the chemistry of allenyl sulfones. Org Biomol Chem 2020; 18:365-378. [DOI: 10.1039/c9ob01912j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Allenyl sulfones are versatile building blocks for the construction of various acyclic, carbocyclic and heterocyclic motifs. Recent developments in the preparation and synthetic applications of allenyl sulfones are summarised.
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Affiliation(s)
- Deepak Yadav
- Department of Chemistry
- School of Chemical Sciences
- Central University of Haryana
- Mahendergarh
- India
| | - Rajeev S. Menon
- Department of Chemistry
- School of Chemical Sciences
- Central University of Haryana
- Mahendergarh
- India
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4
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Fujita T, Hattori M, Matsuda M, Morioka R, Jankins TC, Ikeda M, Ichikawa J. Nucleophilic 5-endo-trig cyclization of 2-(trifluoromethyl)allylic metal enolates and enamides: Synthesis of tetrahydrofurans and pyrrolidines bearing exo-difluoromethylene units. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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5
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Tata RR, Hampton CS, Harmata M. Preparation of Propargylic Sulfinates and their [2,3]-Sigmatropic Rearrangement to Allenic Sulfones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600986] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Rama Rao Tata
- Department of Chemistry; University of Missouri-Columbia; Columbia Missouri 65211 USA), Fax: (+1)-573-882-2754
| | - Carissa S. Hampton
- Department of Chemistry; University of Missouri-Columbia; Columbia Missouri 65211 USA), Fax: (+1)-573-882-2754
| | - Michael Harmata
- Department of Chemistry; University of Missouri-Columbia; Columbia Missouri 65211 USA), Fax: (+1)-573-882-2754
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Tata RR, Harmata M. Silver-Catalyzed Cyclization of Sulfonyl Allenes to Dihydrofurans. Org Lett 2016; 18:5684-5687. [PMID: 27786483 DOI: 10.1021/acs.orglett.6b02917] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Rama Rao Tata
- Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States
| | - Michael Harmata
- Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States
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7
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Inagaki S, Ukaku M, Chiba A, Takahashi F, Yoshimi Y, Morita T, Kawano T. Synthesis of Substituted 3(2H)-Furanones Using Alkylative Intramolecular Cyclization of Sulfonium Salts. J Org Chem 2016; 81:8363-9. [DOI: 10.1021/acs.joc.6b01528] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sho Inagaki
- Department
of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Mika Ukaku
- Department
of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Akira Chiba
- Department
of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Fumi Takahashi
- Department
of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Yasuharu Yoshimi
- Department
of Applied Chemistry and Biotechnology, Graduate School of Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan
| | - Toshio Morita
- Department
of Applied Chemistry and Biotechnology, Graduate School of Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan
| | - Tomikazu Kawano
- Department
of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
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8
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Fujita T, Watabe Y, Yamashita S, Tanabe H, Nojima T, Ichikawa J. Silver-catalyzed Vinylic C–F Bond Activation: Synthesis of 2-Fluoroindoles from β,β-Difluoro-o-sulfonamidostyrenes. CHEM LETT 2016. [DOI: 10.1246/cl.160427] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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9
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Hampton CS, Harmata M. Mechanistic Aspects of the Palladium-Catalyzed Isomerization of Allenic Sulfones to 1-Arylsulfonyl 1,3-Dienes. J Org Chem 2016; 81:4807-22. [PMID: 27127922 DOI: 10.1021/acs.joc.6b00880] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Carissa S. Hampton
- Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States
| | - Michael Harmata
- Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States
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