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Pd/Cu-Catalyzed Cross-Coupling of Bis(2-bromovinyl) Selenides with Terminal Acetylenes: Unusual Involvement of Selanyl Function in the Sonogashira Reaction. Catalysts 2022. [DOI: 10.3390/catal12121589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The Pd/Cu-catalyzed Sonogashira reaction of (E,E)-bis(2-bromovinyl) selenide and (E,E)-bis(1-bromo-1-hexen-2-yl) selenide with terminal alkynes was found to proceed at room temperature involving both bromine atoms and the selanyl function. As a result, new bis-(1,3-enynyl) selenides and enediyne hydrocarbons are formed with a complete retention of the stereoconfiguration of the initial selenides. Due to steric hindrances in the cross-coupling at the selenyl function in the case of (E,E)-bis(1-bromo-1-hexen-2-yl) selenide, the second process is realized to a lesser extent than with unsubstituted (E,E)-bis(2-bromovinyl) selenide.
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Maji M, Mallick D, Mondal S, Anoop A, Bag SS, Basak A, Jemmis ED. Selectivity in Garratt−Braverman Cyclization: An Experimental and Computational Study. Org Lett 2011; 13:888-91. [DOI: 10.1021/ol102861j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manasi Maji
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Dibyendu Mallick
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Sayantan Mondal
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Anakuthil Anoop
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Subhendu Sekhar Bag
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Amit Basak
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Eluvathingal D. Jemmis
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
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Ziffle VE, Cheng P, Clive DLJ. Conversion of 1,4-Diketones into para-Disubstituted Benzenes. J Org Chem 2010; 75:8024-38. [DOI: 10.1021/jo101489g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Vincent E. Ziffle
- Chemistry Department, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Ping Cheng
- 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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Basak A, Das S, Mallick D, Jemmis ED. Which One Is Preferred: Myers−Saito Cyclization of Ene-Yne-Allene or Garratt−Braverman Cyclization of Conjugated Bisallenic Sulfone? A Theoretical and Experimental Study. J Am Chem Soc 2009; 131:15695-704. [DOI: 10.1021/ja9023644] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Amit Basak
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016 Kerala, India
| | - Sanket Das
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016 Kerala, India
| | - Dibyendu Mallick
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016 Kerala, India
| | - Eluvathingal D. Jemmis
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016 Kerala, India
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