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1
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Shibuya M, Yuruka S, Yamamoto Y. Generation of Bis(pentafluorophenyl)boron Enolates from Alkynes and Their Catalyst-Free Alkyne Coupling. Angew Chem Int Ed Engl 2025; 64:e202417910. [PMID: 39487096 DOI: 10.1002/anie.202417910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2024] [Revised: 10/25/2024] [Accepted: 10/31/2024] [Indexed: 11/04/2024]
Abstract
Carbon-carbon bond forming reactions are powerful synthetic tools for constructing organic molecular frameworks. In this study, strongly Lewis acidic bis(pentafluorophenyl)boron enolates were generated from alkynes through oxygen transfer from 2,6-dibromopyridine N-oxide using tris(pentafluorophenyl)borane [B(C6F5)3]. Boron enolates were highly reactive owing to the strong Lewis acidity of the boron centers, and thus immediately coupled with alkynes. N-Ethynylphthalimide reacted as an alkyne with 2,6-dibromopyridine N-oxide and B(C6F5)3 to form a semi-stable bis(pentafluorophenyl)boron enolate through the coordination of the carbonyl group to the boron center. This enolate underwent coupling with another alkyne.
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Affiliation(s)
- Masatoshi Shibuya
- Department of Chemical and Biological Sciences, Faculty of Sciences, Japan Women's University, 2-8-1 Mejirodai, Bunkyo-ku, Tokyo 112-8681, Japan
| | - Souta Yuruka
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Yoshihiko Yamamoto
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
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2
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Klein‐Heßling C, Sünkel K. Synthesis and Characterization of the Complete Series [(C
5
H
5‐n
Cl
n
)Co(C
4
Ph
4
)] (n=1–5). ChemistrySelect 2021. [DOI: 10.1002/slct.202102199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christian Klein‐Heßling
- Department of Chemistry Ludwig-Maximilians-University Munich Butenandtstr. 5–13 81377 Munich Germany
| | - Karlheinz Sünkel
- Department of Chemistry Ludwig-Maximilians-University Munich Butenandtstr. 5–13 81377 Munich Germany
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3
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Cheng R, Qiu Z, Xie Z. Iridium‐Catalyzed Regioselective B(3)‐Alkenylation/B(3,6)‐Dialkenylation of
o
‐Carboranes by Direct B−H Activation. Chemistry 2020; 26:7212-7218. [DOI: 10.1002/chem.202000549] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 02/10/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Ruofei Cheng
- Shanghai–Hong Kong Joint Laboratory in Chemical SynthesisShanghai Institute of Organic ChemistryUniversity of, Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Rd Shanghai 200032 P. R. China
| | - Zaozao Qiu
- Shanghai–Hong Kong Joint Laboratory in Chemical SynthesisShanghai Institute of Organic ChemistryUniversity of, Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Rd Shanghai 200032 P. R. China
- CAS Key Laboratory of Energy Regulation MaterialsShanghai Institute of Organic ChemistryChinese Academy of, Sciences 345 Lingling Rd Shanghai 200032 P. R. China
- Fujian Innovation AcademyChinese Academy of Sciences 155 Yangqiao Rd West Fuzhou 350002 P. R. China
| | - Zuowei Xie
- Shanghai–Hong Kong Joint Laboratory in Chemical SynthesisShanghai Institute of Organic ChemistryUniversity of, Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Rd Shanghai 200032 P. R. China
- Department of ChemistryState Key Laboratory of, Synthetic ChemistryThe Chinese University of Hong Kong Shatin, N.T. Hong Kong P. R. China
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4
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Arthurs RA, Richards CJ. Multiple Acetylation of Pentaphenylferrocene – Synthesis and Asymmetric Reduction of 1‐Acetyl‐1′,2′,3′,4′,5′‐penta(
para
‐acetylphenyl)ferrocene. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ross A. Arthurs
- School of Chemistry University of East Anglia Norwich Research Park NR4 7TJ Norwich U.K
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5
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Rodriguez Castanon J, Sano N, Shiotsuki M, Sanda F. Synthesis of poly(1-chloro-2-arylacetylene)s with high cis-content and examination of their absorption/emission properties. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28397] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jesus Rodriguez Castanon
- Department of Polymer Chemistry, Graduate School of Engineering; Kyoto University, Katsura Campus; Nishikyo-ku Kyoto 615-8510 Japan
| | - Natsuhiro Sano
- R&D Division, Nippon Chemical Industrial Co; LTD. 9-11-1, Kameido Koto-ku Tokyo 136-8515 Japan
| | - Masashi Shiotsuki
- Department of Chemistry and Energy Engineering; Faculty of Engineering, Tokyo City University; 1-28-1 Tamazutsumi Setagaya-ku Tokyo 158-8557 Japan
| | - Fumio Sanda
- Department of Chemistry and Materials Engineering; Faculty of Chemistry, Materials and Bioengineering, Kansai University; 3-3-35 Yamate-cho Suita Osaka 564-8680 Japan
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6
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Chemistry of the highly stable hindered cobalt sandwich compound (η5-Cp)Co(η4-C4Ph4) and its derivatives. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.05.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Kottas GS, Brotin T, Schwab PFH, Gala K, Havlas Z, Kirby JP, Miller JR, Michl J. Tetraarylcyclobutadienecyclopentadienylcobalt Complexes: Synthesis, Electronic Spectra, Magnetic Circular Dichroism, Linear Dichroism, and TD DFT Calculations. Organometallics 2014. [DOI: 10.1021/om400403j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gregg S. Kottas
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - Thierry Brotin
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - Peter F. H. Schwab
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - Kamal Gala
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - Zdeněk Havlas
- Institute
of Chemistry and Biochemistry, Academy of Science of the Czech Republic, 16610 Prague 6, Czech Republic
| | - James P. Kirby
- Chemistry
Department, Brookhaven National Laboratory, Building 555A, Upton, New
York 11973, United States
| | - John R. Miller
- Chemistry
Department, Brookhaven National Laboratory, Building 555A, Upton, New
York 11973, United States
| | - Josef Michl
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
- Institute
of Chemistry and Biochemistry, Academy of Science of the Czech Republic, 16610 Prague 6, Czech Republic
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8
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Singh J, Kumar D, Singh N, Elias AJ. New Chiral Palladacycles from an Unprecedented Cyclopalladation of Cyclobutadiene-Bound Phenyl Groups of Cobalt Sandwich Compounds. Organometallics 2014. [DOI: 10.1021/om500004n] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jatinder Singh
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Dheeraj Kumar
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Nem Singh
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Anil J. Elias
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
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9
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Synthesis of the cobalt–alkyne complex (η5-C5H5)(PPh3)Co{η2-(Me3Si)CC(CO2Et)} and structural characterization of trimethylsilyl substituted cobaltacyclopentadiene complexes derived therefrom. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Magdzinski E, Gobbo P, Workentin MS, Ragogna PJ. A Novel Diiminopyridine Ligand Containing Redox Active Co(III) Mixed Sandwich Complexes. Inorg Chem 2013; 52:11311-9. [DOI: 10.1021/ic401598e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Eleanor Magdzinski
- Department
of Chemistry and The Centre for Advanced Materials and Biomaterials
Research (CAMBR), The University of Western Ontario, 1151 Richmond
Street, London, Ontario N6A 5B7, Canada
| | - Pierangelo Gobbo
- Department
of Chemistry and The Centre for Advanced Materials and Biomaterials
Research (CAMBR), The University of Western Ontario, 1151 Richmond
Street, London, Ontario N6A 5B7, Canada
| | - Mark S. Workentin
- Department
of Chemistry and The Centre for Advanced Materials and Biomaterials
Research (CAMBR), The University of Western Ontario, 1151 Richmond
Street, London, Ontario N6A 5B7, Canada
| | - Paul J. Ragogna
- Department
of Chemistry and The Centre for Advanced Materials and Biomaterials
Research (CAMBR), The University of Western Ontario, 1151 Richmond
Street, London, Ontario N6A 5B7, Canada
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