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Mandal S, Chaudhari RD, Biswas G. Advances in mercury(II)-salt-mediated cyclization reactions of unsaturated bonds. Beilstein J Org Chem 2021; 17:2348-2376. [PMID: 34621398 PMCID: PMC8450975 DOI: 10.3762/bjoc.17.153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/27/2021] [Indexed: 11/23/2022] Open
Abstract
The synthesis of complex cyclic compounds is extremely challenging for organic chemists. Many transition-metal-salt-mediated cyclizations are reported in literature. Hg(II) salts have been successfully employed in cyclizations to form complex heterocyclic and carbocyclic structures that are impossible to synthesize with other transition metal salts. In this review, we have summarized cyclization reactions that are performed with Hg(II) salts. These salts are also successfully applied in stoichiometric or catalytic amounts to form complex cyclic structures and natural products.
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Affiliation(s)
- Sumana Mandal
- Department of Chemistry, Cooch Behar Panchanan Barma University, Panchanan Nagar, Vivekananda Street, Cooch Behar - 736101, West Bengal, India
| | - Raju D Chaudhari
- Department of Chemistry, Cooch Behar Panchanan Barma University, Panchanan Nagar, Vivekananda Street, Cooch Behar - 736101, West Bengal, India
| | - Goutam Biswas
- Department of Chemistry, Cooch Behar Panchanan Barma University, Panchanan Nagar, Vivekananda Street, Cooch Behar - 736101, West Bengal, India
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Chea J, Clive DLJ. Synthesis of (+)-Ipalbidine Based on 6-exo-trig Radical Cyclization of a β-Amino Radical. J Org Chem 2015; 80:10294-8. [PMID: 26402510 DOI: 10.1021/acs.joc.5b01890] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
N-Boc (S)-proline was converted into (2S)-2-[(phenylselanyl)methyl]pyrrolidine, which was alkylated on nitrogen with 2-bromo-1-(4-methoxyphenyl)ethan-1-one. Reaction with vinyllithium, 6-exo-trig radical cyclization (Bu3SnH, AIBN, PhMe, 110 °C), dehydration (P2O5, H3PO4), and demethylation (BBr3) gave (+)-ipalbidine with ee >99%.
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Affiliation(s)
- JongMyoung Chea
- Chemistry Department, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Derrick L J Clive
- Chemistry Department, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
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6
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Müller TE, Hultzsch KC, Yus M, Foubelo F, Tada M. Hydroamination: Direct Addition of Amines to Alkenes and Alkynes. Chem Rev 2008; 108:3795-892. [PMID: 18729420 DOI: 10.1021/cr0306788] [Citation(s) in RCA: 1642] [Impact Index Per Article: 102.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas E. Müller
- CAT Catalytic Center, ITMC, RWTH Aachen, Worringerweg 1, 52074 Aachen, Germany, Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8087, Departamento de Química Orgánica, Universidad de Alicante, E-03080 Alicante, Spain, and Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kai C. Hultzsch
- CAT Catalytic Center, ITMC, RWTH Aachen, Worringerweg 1, 52074 Aachen, Germany, Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8087, Departamento de Química Orgánica, Universidad de Alicante, E-03080 Alicante, Spain, and Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Miguel Yus
- CAT Catalytic Center, ITMC, RWTH Aachen, Worringerweg 1, 52074 Aachen, Germany, Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8087, Departamento de Química Orgánica, Universidad de Alicante, E-03080 Alicante, Spain, and Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Francisco Foubelo
- CAT Catalytic Center, ITMC, RWTH Aachen, Worringerweg 1, 52074 Aachen, Germany, Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8087, Departamento de Química Orgánica, Universidad de Alicante, E-03080 Alicante, Spain, and Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mizuki Tada
- CAT Catalytic Center, ITMC, RWTH Aachen, Worringerweg 1, 52074 Aachen, Germany, Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8087, Departamento de Química Orgánica, Universidad de Alicante, E-03080 Alicante, Spain, and Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Newcomb M, Musa OM, Martinez FN, Horner JH. Kinetics of 5-exo Cyclizations of N-Alkyl-4-pentenaminyl Radicals and β-Fragmentations of β-(Dialkylamino)alkyl Radicals. J Am Chem Soc 1997. [DOI: 10.1021/ja964318w] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martin Newcomb
- Contribution from the Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Osama M. Musa
- Contribution from the Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Felix N. Martinez
- Contribution from the Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - John H. Horner
- Contribution from the Department of Chemistry, Wayne State University, Detroit, Michigan 48202
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