Diastereoselective [3 + 2] Cycloaddition of Quinoxalin-2(1H)-ones with Donor–Acceptor Cyclopropanes: Efficient Synthesis of Tetrahydro pyrrolo[1,2-a]quinoxalin-4(5H)-ones

Himangsu Sekhar Dutta, Ashfaq Ahmad, Afsar Ali Khan, Mohit Kumar, Raziullah, Jayanti Vaishnav, Manoj Kumar Gangwar, Ravi Sankar Ampapathi, Dipankar Koley

    Research output: Contribution to journalArticlepeer-review

    15 Scopus citations

    Abstract

    A ytterbium triflate-catalyzed diastereoselective [3 + 2] cycloaddition of quinoxalinones with donor–acceptor cyclopropanes and cyclobutanes is described. A series of tetrahydropyrrolo-quinoxalinone derivatives were obtained in high yields (up to 96%) with excellent diastereoselectivities (up to 46:1). Other medicinally important heterocycles like benzoxazinone, isoquinoxalinone, and dibenzoxazepine derivatives were also suitable for the desired annulation reaction. The current method is applicable for the scale-up reaction. Further, the utility of this annulation reaction is demonstrated by the synthesis of densely functionalized proline derivatives.
    Original languageEnglish (US)
    JournalThe Journal of Organic Chemistry
    DOIs
    StatePublished - Nov 15 2021

    Bibliographical note

    KAUST Repository Item: Exported on 2021-11-25
    Acknowledgements: Financial support from DST-SERB (EMR/2016/000613), CSIR-New Delhi (H.S.D., A.A., A.A.K.), and UGC-New Delhi (M.K., R.) is gratefully acknowledged. We thank the CDRI SAIF division for analytical support. CDRI communication no 10313.

    ASJC Scopus subject areas

    • Organic Chemistry

    Fingerprint

    Dive into the research topics of 'Diastereoselective [3 + 2] Cycloaddition of Quinoxalin-2(1H)-ones with Donor–Acceptor Cyclopropanes: Efficient Synthesis of Tetrahydro pyrrolo[1,2-a]quinoxalin-4(5H)-ones'. Together they form a unique fingerprint.

    Cite this