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Al-Huniti MH, Sullivan ZB, Stanley JL, Carson JA, Hyatt IFD, Hairston AC, Croatt MP. Hypervalent Iodonium Alkynyl Triflate Generated Phenylcyanocarbene and Its Reactivity with Aromatic Systems. J Org Chem 2017; 82:11772-11780. [PMID: 28841312 DOI: 10.1021/acs.joc.7b01608] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Phenylcyanocarbene was generated by the reaction of azide with a hypervalent iodonium alkynyl triflate and reacted in situ with 21 different carbocyclic and heterocyclic aromatic compounds. These reactions led to more complex products that frequently underwent subsequent rearrangements. The reactivity was further explored in a mechanistic study to ascertain the chemoselectivity and stereospecificity.
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Affiliation(s)
- Mohammed H Al-Huniti
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
| | - Zachary B Sullivan
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
| | - Jarrod L Stanley
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
| | - James A Carson
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
| | - I F Dempsey Hyatt
- Department of Chemistry, Adelphi University , 1 South Avenue, Garden City, New York 11530, United States
| | - A Christina Hairston
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
| | - Mitchell P Croatt
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 435 Sullivan Science Building, Greensboro, North Carolina 27402, United States
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2
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Zhang Y, Tian Y, Xiang P, Huang N, Wang J, Xu JH, Zhang M. A metal-free one-pot synthesis of benzo[c]chromen-6-ones from 3,4-dichlorocoumarins and butadienes using tandem photo-thermal-photo reactions. Org Biomol Chem 2016; 14:9874-9882. [PMID: 27722745 DOI: 10.1039/c6ob01701k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient, simple and versatile synthesis of biologically valuable benzo[c]chromen-6-ones is achieved using a tandem photo-thermal-photo reaction sequence starting from 3,4-dichlorocoumarins and a 1,3-butadiene. In this concise one-pot protocol, neither metal catalyst nor peroxide promoter is needed and the products can be purified through simple recrystallization in most cases. The synthesis consists of a reaction sequence of photo-induced [4 + 2] and [2 + 2] cycloadditions, silica gel promoted elimination of HCl and electrocyclic cyclobutene ring opening followed by a photo-induced 6π electrocyclization. The reactions proceed well with a range of dichlorocoumarins and some typical butadienes to provide the corresponding annulated products in 70-80% yield.
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Affiliation(s)
- Yan Zhang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
| | - Yan Tian
- Guangxi Environmental Monitoring Center, Nanning, Guangxi 530028, China
| | - Pei Xiang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
| | - Ning Huang
- Guangxi Environmental Monitoring Center, Nanning, Guangxi 530028, China
| | - Jianyi Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
| | - Jian-Hua Xu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Min Zhang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
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3
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Suzuki T, Takeda T, Ohta E, Wada K, Katoono R, Kawai H, Fujiwara K. Bis(10-methylacridinium)s as a Versatile Platform for Redox-Active Functionalized Dyes and Novel Structures. CHEM REC 2014; 15:280-94. [DOI: 10.1002/tcr.201402073] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Indexed: 02/05/2023]
Affiliation(s)
- Takanori Suzuki
- Department of Chemistry; Faculty of Science; Hokkaido University; Sapporo Hokkaido 060-0810 Japan
| | - Takashi Takeda
- Department of Chemistry; Faculty of Science; Hokkaido University; Sapporo Hokkaido 060-0810 Japan
| | - Eisuke Ohta
- Department of Chemistry; Faculty of Science; Hokkaido University; Sapporo Hokkaido 060-0810 Japan
| | - Kazuhisa Wada
- Department of Chemistry; Faculty of Science; Hokkaido University; Sapporo Hokkaido 060-0810 Japan
| | - Ryo Katoono
- Department of Chemistry; Faculty of Science; Hokkaido University; Sapporo Hokkaido 060-0810 Japan
| | - Hidetoshi Kawai
- Department of Chemistry; Faculty of Science; Hokkaido University; Sapporo Hokkaido 060-0810 Japan
| | - Kenshu Fujiwara
- Department of Chemistry; Faculty of Science; Hokkaido University; Sapporo Hokkaido 060-0810 Japan
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4
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Suzuki T, Uchimura Y, Nagasawa F, Takeda T, Kawai H, Katoono R, Fujiwara K, Murakoshi K, Fukushima T, Nagaki A, Yoshida JI. Expandability of Ultralong C–C Bonds: Largely Different C1–C2Bond Lengths Determined by Low-temperature X-ray Structural Analyses on Pseudopolymorphs of 1,1-Bis(4-fluorophenyl)-2,2-bis(4-methoxyphenyl)pyracene. CHEM LETT 2014. [DOI: 10.1246/cl.130872] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Yasuto Uchimura
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Fumika Nagasawa
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Takashi Takeda
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Hidetoshi Kawai
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Ryo Katoono
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Kenshu Fujiwara
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Kei Murakoshi
- Department of Chemistry, Faculty of Science, Hokkaido University
| | | | - Aiichiro Nagaki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Jun-ichi Yoshida
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
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5
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Wada K, Takeda T, Kawai H, Katoono R, Fujiwara K, Suzuki T. Geometrical Remote Steric Effects in 4,5-Disubstituted-9,10-dihydrophenanthrenes: Expansion of Prestrained C9–C10 Bond in Di(spiroacridan) Derivatives. CHEM LETT 2013. [DOI: 10.1246/cl.130502] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Kazuhisa Wada
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Takashi Takeda
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Hidetoshi Kawai
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Ryo Katoono
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Kenshu Fujiwara
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University
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Takeda T, Uchimura Y, Kawai H, Katoono R, Fujiwara K, Suzuki T. Hexaphenylethanes with an Ultralong C–C Bond: Expandability of the C–C Bond in Highly Strained Tetraarylpyracenes. CHEM LETT 2013. [DOI: 10.1246/cl.130598] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Takashi Takeda
- Department of Chemistry, Faculty of Science, Hokkaido University
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
| | - Yasuto Uchimura
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Hidetoshi Kawai
- Department of Chemistry, Faculty of Science, Hokkaido University
- Department of Chemistry, Graduate School of Science, Tokyo University of Science
| | - Ryo Katoono
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Kenshu Fujiwara
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University
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Suzuki T, Uchimura Y, Ishigaki Y, Takeda T, Katoono R, Kawai H, Fujiwara K, Nagaki A, Yoshida JI. Nonadditive Substituent Effects on Expanding Prestrained C–C Bond in Crystal: X-ray Analyses on Unsymmetrically Substituted Tetraarylpyracenes Prepared by a Flow Microreactor Method. CHEM LETT 2012. [DOI: 10.1246/cl.2012.541] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Yasuto Uchimura
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Yusuke Ishigaki
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Takashi Takeda
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Ryo Katoono
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Hidetoshi Kawai
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Kenshu Fujiwara
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Aiichiro Nagaki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Jun-ichi Yoshida
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
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Suzuki T, Ishigaki Y, Iwai T, Kawai H, Fujiwara K, Ikeda H, Kano Y, Mizuno K. Multi-Input/Multi-Output Molecular Response System Based on the Dynamic Redox Behavior of 3,3,4,4-Tetraaryldihydro[5]helicene Derivatives: Reversible Formation/Destruction of Chiral Fluorophore and Modulation of Chiroptical Properties by Solvent Polarity. Chemistry 2009; 15:9434-41. [DOI: 10.1002/chem.200900968] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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9
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Takeda T, Kawai H, Herges R, Mucke E, Sawai Y, Murakoshi K, Fujiwara K, Suzuki T. Negligible diradical character for the ultralong C–C bond in 1,1,2,2-tetraarylpyracene derivatives at room temperature. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.202] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Kawai H, Takeda T, Fujiwara K, Wakeshima M, Hinatsu Y, Suzuki T. Ultralong carbon-carbon bonds in dispirobis(10-methylacridan) derivatives with an acenaphthene, pyracene, or dihydropyracylene skeleton. Chemistry 2008; 14:5780-93. [PMID: 18478615 DOI: 10.1002/chem.200702028] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Acenapthalene, pyracene, and dihydropyracylene attached to two units of spiroacridan are a novel class of hexaphenylethane (HPE) derivatives that have an ultralong Csp3-Csp3 bond (1.77-1.70 A). These sterically challenged molecules were cleanly prepared by C-C bond formation through two-electron reduction from the less-hindered dications. These ultralong bonds were realized based on several molecular-design concepts including enhanced "front strain" through "multiclamping" by means of fusing or bridging aryl groups in the HPE molecule. The lengths of these ultralong bonds and their relation to the conformation (torsional angle) were also validated by means of theoretical calculations. Bond-fission experiments revealed that the bonds are more easily cleaved than standard covalent bonds to produce the corresponding dication upon oxidation with an increase in the length of the C-C bond.
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Affiliation(s)
- Hidetoshi Kawai
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo 060-0810 (Japan).
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