1
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Angoy M, Jiménez MV, Modrego FJ, Oro LA, Passarelli V, Pérez-Torrente JJ. Mechanistic Investigation on the Polymerization of Phenylacetylene by 2-Diphenylphosphinopyridine Rhodium(I) Catalysts: Understanding the Role of the Cocatalyst and Alkynyl Intermediates. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00430] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marta Angoy
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea−ISQCH, Universidad de Zaragoza−CSIC, Facultad de Ciencias, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - M. Victoria Jiménez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea−ISQCH, Universidad de Zaragoza−CSIC, Facultad de Ciencias, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - F. Javier Modrego
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea−ISQCH, Universidad de Zaragoza−CSIC, Facultad de Ciencias, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - Luis A. Oro
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea−ISQCH, Universidad de Zaragoza−CSIC, Facultad de Ciencias, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - Vincenzo Passarelli
- Centro Universitario de la Defensa, Ctra. Huesca s/n, ES-50090 Zaragoza, Spain
| | - Jesús J. Pérez-Torrente
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea−ISQCH, Universidad de Zaragoza−CSIC, Facultad de Ciencias, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
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2
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Yang X, Liu S, Yu S, Kong L, Lan Y, Li X. Redox-Neutral Access to Isoquinolinones via Rhodium(III)-Catalyzed Annulations of O-Pivaloyl Oximes with Ketenes. Org Lett 2018; 20:2698-2701. [DOI: 10.1021/acs.orglett.8b00906] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xifa Yang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Song Liu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Songjie Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Lingheng Kong
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Xingwei Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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3
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Yasui K, Chatani N, Tobisu M. Rhodium-Catalyzed C–O Bond Alkynylation of Aryl Carbamates with Propargyl Alcohols. Org Lett 2018; 20:2108-2111. [DOI: 10.1021/acs.orglett.8b00674] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kosuke Yasui
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Mamoru Tobisu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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4
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Yang X, Li Y, Kong L, Li X. Access to Quaternary Stereogenic Centers via Rhodium(III)-Catalyzed Annulations between 2-Phenylindoles and Ketenes. Org Lett 2018; 20:1957-1960. [DOI: 10.1021/acs.orglett.8b00497] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Xifa Yang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunyun Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lingheng Kong
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingwei Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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5
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Yu S, Li Y, Kong L, Zhou X, Tang G, Lan Y, Li X. Mild Acylation of C(sp3)–H and C(sp2)–H Bonds under Redox-Neutral Rh(III) Catalysis. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02668] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Songjie Yu
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yingzi Li
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - Lingheng Kong
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xukai Zhou
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guodong Tang
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yu Lan
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - Xingwei Li
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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6
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Minami Y, Hiyama T. Synthetic Transformations through Alkynoxy-Palladium Interactions and C-H Activation. Acc Chem Res 2016; 49:67-77. [PMID: 26651014 DOI: 10.1021/acs.accounts.5b00414] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Organic synthesis based on straightforward transformations is essential for environmentally benign manufacturing for the invention of novel pharmaceuticals, agrochemicals, and organoelectronic materials in order to ultimately realize a sustainable society. Metal-catalyzed C-H bond-cleaving functionalization has become a promising method for achieving the above goal. For site-selective C-H bond cleavage, so-called directing groups, i.e., ligands attached to substrates, are employed. Commonly utilized directing groups are carbonyls, imines, carboxyls, amides, and pyridyls, which σ-donate electron pairs to metals. On the other hand, unsaturated substrates such as alkenes and alkynes, which participate largely as reactants in organic synthesis, are prepared readily by a wide variety of synthetic transformations and are also employed as reactants in organometallic chemistry. Moreover, such unsaturated groups form complexes with some metals by ligation of their p orbitals via donation and back-donation. However, the use of unsaturated bonds as directing groups has not been studied extensively. We have been involved in the development of methods for the cleavage of C-H bonds by means of transition-metal catalysts to achieve new carbon-carbon bond-forming reactions and incidentally came to focus on the alkynoxy group (-OC≡C-), which shows a ketene-like resonance structure. We expected the alkynoxy group to interact electrophilically with a low-valent transition-metal complex in order to cleave adjacent C-H bonds. In this Account, we summarize our recent achievements on C-H activation based on interactions of palladium with the alkynoxy group in alkynyl aryl ethers. The alkynoxy group plays two roles in the transformation: as a directing group for adjacent C-H bond activation and as an acceptor for the carbon and hydrogen fragments. A typical example is palladium-catalyzed ortho-C-H bond activation in alkynoxyarenes followed by sequential insertion/annulation with internal alkynes and the alkynoxy group to produce 2-methylidene-2H-1-benzopyrans. Mechanistic studies have shown that the presence of both oxygen and alkynyl moieties is essential for selective ortho-C-H bond activation and subsequent annulation. In addition to internal alkynes, norbornene, allenes, isocyanates, and ketenes produce the corresponding oxacycles. It is worthy of note that benzoxadinones formed by the reaction with isocyanates exhibit solid-state luminescence. In addition, 2-methylphenyl alkynyl ethers and 2-alkynoxybiaryls undergo intramolecular annulation at the benzylic γ-position and aryl δ-position via C-H bond activation to give benzofurans and dibenzopyrans, respectively. The disclosed methods allow us to construct useful π-conjugated systems in a straightforward manner.
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Affiliation(s)
- Yasunori Minami
- Research and Development
Initiative, Chuo University, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Tamejiro Hiyama
- Research and Development
Initiative, Chuo University, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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7
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Dou X, Huang Y, Hayashi T. Asymmetric Conjugate Alkynylation of Cyclic α,β-Unsaturated Carbonyl Compounds with a Chiral Diene Rhodium Catalyst. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509778] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiaowei Dou
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Yinhua Huang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Tamio Hayashi
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
- Institute of Materials Research and Engineering, A*STAR; 2 Fusionopolis Way Singapore 138634 Singapore
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8
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Dou X, Huang Y, Hayashi T. Asymmetric Conjugate Alkynylation of Cyclic α,β-Unsaturated Carbonyl Compounds with a Chiral Diene Rhodium Catalyst. Angew Chem Int Ed Engl 2015; 55:1133-7. [DOI: 10.1002/anie.201509778] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaowei Dou
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Yinhua Huang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Tamio Hayashi
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
- Institute of Materials Research and Engineering, A*STAR; 2 Fusionopolis Way Singapore 138634 Singapore
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Palladium-catalyzed annulation of alkynyl aryl ethers with isocyanates through o-C–H cleavage. Synthesis of solid-state emissive 2-methylidene-2H-1,4-benzoxazin-3(4H)-ones. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.02.062] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Azpíroz R, Rubio-Pérez L, Castarlenas R, Pérez-Torrente JJ, Oro LA. gem-Selective Cross-Dimerization and Cross-Trimerization of Alkynes with Silylacetylenes Promoted by a Rhodium-Pyridine-N-Heterocyclic Carbene Catalyst. ChemCatChem 2014. [DOI: 10.1002/cctc.201402327] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Affiliation(s)
- Annette D. Allen
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Thomas T. Tidwell
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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