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Dar AH, Gowri V, Neethu KM, Jayamurugan G. Synthesis of 1,1,4,4‐Tetracyanobuta‐1,3‐Dienes using Tetracyanoethylene Oxide via [3+2]‐Cycloaddition‐Ring Opening Reaction. ChemistrySelect 2020. [DOI: 10.1002/slct.202003179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Arif Hassan Dar
- Institute of Nano Science and Technology Mohali 160062 Punjab India
| | | | - K. M. Neethu
- Institute of Nano Science and Technology Mohali 160062 Punjab India
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2
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Asahara H, Kawakami S, Yoshioka K, Tani S, Umezu K, Nishiwaki N. Unsymmetrical Tetra-Acceptor-Substituted Alkenes as Polyfunctionalized Building Blocks: A Divergent Synthesis of Densely Functionalized Pyrrolizines. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Haruyasu Asahara
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- School of Environmental Science and Engineering, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502, Japan
| | - Shu Kawakami
- School of Environmental Science and Engineering, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502, Japan
| | - Kotaro Yoshioka
- Kumiai Chemical Industry Co., Ltd., Fujikawa-cho, Ihara-gun, Shizuoka 421-3306, Japan
| | - Shinki Tani
- Kumiai Chemical Industry Co., Ltd., Fujikawa-cho, Ihara-gun, Shizuoka 421-3306, Japan
| | - Kazuto Umezu
- Kumiai Chemical Industry Co., Ltd., Fujikawa-cho, Ihara-gun, Shizuoka 421-3306, Japan
| | - Nagatoshi Nishiwaki
- School of Environmental Science and Engineering, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502, Japan
- Research Center for Material Science and Engineering, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502, Japan
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Michinobu T, Diederich F. The [2+2] Cycloaddition-Retroelectrocyclization (CA-RE) Click Reaction: Facile Access to Molecular and Polymeric Push-Pull Chromophores. Angew Chem Int Ed Engl 2018; 57:3552-3577. [DOI: 10.1002/anie.201711605] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Tsuyoshi Michinobu
- Department of Materials Science and Engineering; Tokyo Institute of Technology; 2-12-1 Ookayama, Meguro-ku Tokyo 1 52-8552 Japan
| | - François Diederich
- Laboratorium für Organische Chemie; ETH Zurich; Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
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Michinobu T, Diederich F. Die [2+2]-Cycloadditions-Retroelektrocyclisierungs(CA-RE)-Klick-Reaktion: ein einfacher Zugang zu molekularen und polymeren Push-pull-Chromophoren. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711605] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Tsuyoshi Michinobu
- Department of Materials Science and Engineering; Tokyo Institute of Technology; 2-12-1 Ookayama, Meguro-ku Tokyo 152-8552 Japan
| | - François Diederich
- Laboratorium für Organische Chemie; ETH-Zürich; Vladimir-Prelog-Weg 3 8093 Zürich Schweiz
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Whitehead A, Zhang Y, McCabe Dunn J, Sherer EC, Lam YH, Stelmach J, Sun A, Shiroda M, Orr RK, Waddell ST, Raghavan S. Selective Formation of Functionalized α-Quaternary Malononitriles toward 5,5-Disubstituted Pyrrolopyrimidinones. Org Lett 2017; 19:4448-4451. [PMID: 28812897 DOI: 10.1021/acs.orglett.7b01930] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A modular, selective approach to complex α-tertiary substituted malononitriles is reported. The method takes advantage of β-ester-substituted α,α-dinitrile alkenes as highly reactive, chemoselective electrophiles for 1,4-additions with organometallic nucleophiles to produce functionally and sterically dense all-carbon quaternary centers. In the presence of a chiral ester auxiliary bearing an aromatic ring, the 1,4-addition occurs with good to excellent selectivity due to favorable cation-π interactions. The highly functionalized malononitriles represent versatile building blocks and can be applied toward efficient, highly selective syntheses of 5,5-disubstituted pyrrolopyrimidinones.
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Affiliation(s)
- Alan Whitehead
- Discovery Chemistry, Merck & Co., Inc. , 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Yong Zhang
- Discovery Chemistry, Merck & Co., Inc. , 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | | | | | | | - John Stelmach
- Discovery Chemistry, Merck & Co., Inc. , 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Aaron Sun
- Discovery Chemistry, Merck & Co., Inc. , 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Melisa Shiroda
- Discovery Chemistry, Merck & Co., Inc. , 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | | | - Sherman T Waddell
- Discovery Chemistry, Merck & Co., Inc. , 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Subharekha Raghavan
- Discovery Chemistry, Merck & Co., Inc. , 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
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6
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Reekie TA, Donckele EJ, Manenti G, Püntener S, Trapp N, Diederich F. A Three-Step Synthesis of Tetrasubstituted NH-Pyrroles. Org Lett 2016; 18:2252-5. [DOI: 10.1021/acs.orglett.6b00890] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tristan A. Reekie
- Laboratorium für Organische
Chemie, ETH Zurich, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland
| | - Etienne J. Donckele
- Laboratorium für Organische
Chemie, ETH Zurich, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland
| | - Giorgio Manenti
- Laboratorium für Organische
Chemie, ETH Zurich, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland
| | - Salome Püntener
- Laboratorium für Organische
Chemie, ETH Zurich, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland
| | - Nils Trapp
- Laboratorium für Organische
Chemie, ETH Zurich, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland
| | - François Diederich
- Laboratorium für Organische
Chemie, ETH Zurich, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland
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