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Shankar B, Kumar B, Kumar S, Arora A, Kavita, Tomar R, Singh BK. Efficient synthesis of glycosylated imidazo[1,2-a]pyridines via solvent catalysed Groebke-Blackburn-Bienayme reaction. Carbohydr Res 2023; 534:108974. [PMID: 37922684 DOI: 10.1016/j.carres.2023.108974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/13/2023] [Accepted: 10/10/2023] [Indexed: 11/07/2023]
Abstract
A solvent catalysed and metal catalyst-free Groebke-Blackburn-Bienayame three component reaction (GBB-3CR) has been developed for the synthesis of 2-(β-D-glycal-1-yl)-3-N-alkylamino-1-azaindolizines and 2-alkyl/aryl/heteroaryl-3-N-alkylamino-1-azaindolizines. The modified GBB reaction protocol is highly efficient, versatile, atom economic and has been performed in hexafluoroisopropanol (HFIP) without any added catalyst. The GBB-3CR showed high tolerance for a large no of substrates in term of aldehydes, differently substituted 2-aminopyridines and isocyanides without being affected by the presence of electron donating and electron withdrawing substituents at either aldehydes or 2-aminopyridines.
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Affiliation(s)
- Bhawani Shankar
- Department of Chemistry, Deshbandhu College, University of Delhi, Delhi, 110019, India; Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India.
| | - Banty Kumar
- Department of Chemistry, Rajdhani College, University of Delhi, Delhi, 110015, India
| | - Sumit Kumar
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Aditi Arora
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Kavita
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Rashmi Tomar
- Department of Chemistry, M.S.J. College, Bharatpur, Rajasthan, 321001, India
| | - Brajendra K Singh
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
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Ghorbani-Choghamarani A, Taherinia Z, Heidarnezhad Z, Moradi Z. Application of Nanofibers Based on Natural Materials as Catalyst in Organic Reactions. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.10.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Chen Q, Chen S, Wu H, Zeng X, Chen W, Sun G, Wang Z. Application of 2-Aminopyridines in the Synthesis of Five- and Six-Membered Azaheterocycles. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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A review on synthesis and applications of dendrimers. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-02053-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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