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Molecules

Dr. Avishek Guin

Post-doctoral fellow

22. Organocatalytic Regio- and Stereoselective Cyclopropanation of Olefins.
Zhu, C.; Das, S.; Guin, A.; De, C. K.; List, B.
Nat. Catal., 2025, 8, 487-494.

21. Lewis Acid-Catalyzed Unusual (4+3) Annulation of para-Quinone Methides with Bicyclobutanes: Access to Oxabicyclo [4.1.1]octanes.
Deswal, S.; Guin, A.; Biju, A. T.*
Angew. Chem. Int. Ed. 2024, 63, e202408610. ChemRxiv. 2024, Preprint.

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20. Lewis Acid-Catalyzed Diastereoselective Ene Reaction of Thioindolinones/Thiolactams with Bicyclobutanes.
Guin, A.; Deswal, S.; Biju, A. T.
Chem. Sci. 2024, 15, 12473-12479. ChemRxiv. 2023, Preprint.

19. Lewis Acid-Catalyzed One-Pot Thioalkenylation of Donor-Acceptor Cyclopropanes Using in situ Generated Dithiocarbamates and Propiolates.
Harikumar, S.; Kandy, L. T. K.; Guin, A.; Biju, A. T.
Org. Biomol. Chem. 2024, 22, 1834-1838. Invited to the special issue celebrating the 100th birthday of Prof. Sukh Dev.

18. Stereoselective Alder-ene Reactions of Bicyclo[1.1.0]butanes: Facile Synthesis of Cyclopropyl- and Aryl-substituted Cyclobutenes.
Dasgupta, A.; Bhattacharjee, S.; Tong, Z.; Guin, A.; McNamee, R.; Christensen, K.; Biju, A. T.; Anderson, E.
J. Am. Chem. Soc. 2024, 146, 1196-1203. ChemRxiv. 2023, Preprint.

17. Lewis Acid-Catalyzed Diastereoselective Carbofunctionalization of Bicyclobutanes Employing Naphthols.
Guin, A.; Bhattacharjee, S.; Harariya, M. S.; Biju, A. T.*
Chem. Sci. 2023, 14, 6585-6591.

16. Benzotriazole-Triggered Three-Component Lewis Acid-Catalyzed Ring-Opening 1,3-Aminofunctionalization of Donor–Acceptor Cyclopropanes.
Deswal, S.; Guin, A.; Biju, A. T.*
Org. Lett. 2023, 25, 1643-1648.

15. Ring-Opening 1,3-Difunctionalization of Donor-Acceptor Cyclopropanes.
Guin, A.; Biju, A. T.*
In "Donor-Acceptor Cyclopropanes in Organic Synthesis", Chapter 6, Editors: P. Banerjee and A. T. Biju; Wiley-VCH. 2023, ISBN: 978-3-527-349876, Pages 167-190.

14. Synthesis of Trisubstituted Oxazoles via Aryne Induced [2,3] Sigmatropic Rearrangement-Annulation Cascade.
Gaykar, R. N.; Deswal, S.; Guin, A.; Bhattacharjee, S.; Biju, A. T.*
Org. Lett. 2022, 24, 4145-4150.

13. Ring-Opening 1,3-Carbothiolation of Donor−Acceptor Cyclopropanes Using Alkyl Halides and In Situ Generated Dithiocarbamates.
Guin, A.; Deswal, S.; Biju, A. T.*
J. Org. Chem. 2022, 87, 6504-6513.

12. Molecular Rearrangements.
Guin, A.; Deswal, S.; Biju, A. T.*
In "Comprehensive Aryne Synthetic Chemistry", Chapter 3-4, Editor: H. Yoshida; Elsevier, 2021, Pages 223-266.

11. Three-Component, Diastereoselective [6+3] Annulation of Tropone, Imino Esters and Arynes.
Guin, A.; Gaykar, R. N.; Deswal, S.; Biju, A. T.*
Org. Lett. 2021, 23, 7456-7461.

10. Transition-Metal-Free C2-Functionalization of Pyridines via Aryne Three-Component Coupling.
Guin, A.; Bhattacharjee, S.; Biju, A. T.*
Chem. Eur. J. 2021, 27, 13864-13869.
Selected as a “Hot Paper” by the Editors

9. An Umpolung Oxa-[2,3] Sigmatropic Rearrangement Employing Arynes for the Synthesis of Functionalized Enol Ethers.
Gaykar, R. N.; George, M.; Guin, A.; Bhattacharjee, S.; Biju, A. T.*
Org. Lett. 2021, 23, 3447-3452.

8. Hetarynes, Cycloalkynes and Related Intermediates.
Guin, A.; Bhattacherjee, S.; Biju, A. T.*
In "Modern Aryne Chemistry", Chapter 9, Editor: A. T. Biju; Wiley-VCH. 2021, ISBN: 978-3-527-34646-2, pages 359-406.

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7. An Introduction to the Chemistry of Arynes.
Roy, T.; Guin, A.; Biju, A. T.*
In "Modern Aryne Chemistry", Chapter 1, Editor: A. T. Biju; Wiley-VCH. 2021, ISBN: 978-3-527-34646-2, pages 1-25.

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6. Thiophenols as Protic Nucleophilic Triggers in Aryne Three-Component Coupling.
Bhattacharjee, S.; Guin, A.; Gaykar, R. N.; Biju, A. T.*
Org. Lett. 2020, 22, 9097-9101.

5. Lewis Acid-Catalyzed Ring-Opening 1,3-Aminothiolation of Donor-Acceptor Cyclopropanes Using Sulfenamides.
Guin, A.; Rathod, T.; Gaykar, R. N.; Roy, T.; Biju, A. T.*
Org. Lett. 2020, 22, 2276-2280.

4. Three-Component Aminoselenation of Arynes.
Gaykar, R. N.; Guin, A.; Bhattacharjee, S.; Biju, A. T.*
Org. Lett. 2019, 21, 9613-9617.

3. Selective Synthesis of N-H and N-Aryl Benzotriazoles by the [3+2] Annulation of Sodium Azide with Arynes.
Guin, A.; Gaykar, R. N.; Bhattacharjee, S.; Biju, A. T.*
J. Org. Chem. 2019, 84, 12692-12699.

2. Iodide as a Nucleophilic Trigger in Aryne Three-Component Coupling for the Synthesis of 2-Iodobenzyl Alcohols.
Bhattacharjee, S.; Guin, A.; Gaykar, R. N.; Biju, A. T.*
Org. Lett. 2019, 21, 4383-4387.

1. Formal [4+2] benzannulation of 2-alkenyl indoles with aldehydes: a route to structurally diverse carbazoles and bis-carbazoles.
A. Banerjee, A. Guin, S. Saha, A. Mondal and M. S. Maji*
Org. Biomol. Chem. 2019, 17, 1822-1826.

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