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Ashokkumar V, Siva A. One-pot synthesis of α,β-epoxy ketones through domino reaction between alkenes and aldehydes catalyzed by proline based chiral organocatalysts. Org Biomol Chem 2017; 15:2551-2561. [DOI: 10.1039/c7ob00031f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A proline based metal free organocatalysts developed by new approach for the synthesis of epoxide derivatives through domino reaction. This domino reaction allows the direct access to epoxide from various alkene and aldehyde through C–H functionalization and C–C/C–O bond formation. The catalytic efficiencies of organocatalysts were also determined by domino reaction with very good yield (up to 95 %) and ee's (up to 99 %).
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Affiliation(s)
- Veeramanoharan Ashokkumar
- Supramolecular and Organometallic Chemistry Lab
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
| | - Ayyanar Siva
- Supramolecular and Organometallic Chemistry Lab
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
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Reddi RN, Prasad PK, Sudalai A. N‐Heterocyclic Carbene Catalyzed Oxidative Coupling of Alkenes/ α‐Bromoacetophenones with Aldehydes: A Facile Entry to α,β‐Epoxy Ketones. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507363] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Rambabu N. Reddi
- Chemical Engineering and Process Development Division, National Chemical Laboratory, Pashan Road, Pune, 411008 (India)
| | - Pragati K. Prasad
- Chemical Engineering and Process Development Division, National Chemical Laboratory, Pashan Road, Pune, 411008 (India)
| | - Arumugam Sudalai
- Chemical Engineering and Process Development Division, National Chemical Laboratory, Pashan Road, Pune, 411008 (India)
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Reddi RN, Prasad PK, Sudalai A. N-Heterocyclic Carbene Catalyzed Oxidative Coupling of Alkenes/ α-Bromoacetophenones with Aldehydes: A Facile Entry to α,β-Epoxy Ketones. Angew Chem Int Ed Engl 2015; 54:14150-3. [DOI: 10.1002/anie.201507363] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Indexed: 11/07/2022]
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Davis RL, Stiller J, Naicker T, Jiang H, Jørgensen KA. Asymmetric organocatalytic epoxidations: reactions, scope, mechanisms, and applications. Angew Chem Int Ed Engl 2014; 53:7406-26. [PMID: 24919420 DOI: 10.1002/anie.201400241] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Indexed: 12/26/2022]
Abstract
Chiral epoxides serve as versatile building blocks in the synthesis of complex organic frameworks. The high strain imposed by the three-membered ring system makes epoxides prone to a variety of nucleophilic ring-opening reactions. Since the development of the Sharpless epoxidation, there have been many important contributions and advances in this area. With the rapid development of the field of asymmetric organocatalysis, a wide range of organocatalysts is now able to catalyze the epoxidation of broad class of unsaturated carbonyl compounds. In this Minireview, recent progress in the development of organocatalytic asymmetric epoxidation methods, the proposed mechanisms of these reactions and their applications as intermediates is reported.
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Affiliation(s)
- Rebecca L Davis
- Center for Catalysis, Department of Chemistry, Aarhus University, 8000 Aarhus C (Denmark); Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada)
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Davis RL, Stiller J, Naicker T, Jiang H, Jørgensen KA. Organokatalytische asymmetrische Epoxidierungen - Reaktionen, Mechanismen und Anwendungen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400241] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Zhu Y, Wang Q, Cornwall RG, Shi Y. Organocatalytic asymmetric epoxidation and aziridination of olefins and their synthetic applications. Chem Rev 2014; 114:8199-256. [PMID: 24785198 DOI: 10.1021/cr500064w] [Citation(s) in RCA: 333] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Yingguang Zhu
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
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Functionalization of BINOL and application in the homo- and heterogeneous enantioselective epoxidation of α,β-unsaturated ketones. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.09.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Weiß KM, Tsogoeva SB. Enantioselective epoxidation of electron-deficient olefins: an organocatalytic approach. CHEM REC 2010; 11:18-39. [DOI: 10.1002/tcr.201000006] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Indexed: 11/08/2022]
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Affiliation(s)
- Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502 Japan
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Hashimoto T, Maruoka K. Recent Development and Application of Chiral Phase-Transfer Catalysts. Chem Rev 2007; 107:5656-82. [DOI: 10.1021/cr068368n] [Citation(s) in RCA: 652] [Impact Index Per Article: 38.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takuya Hashimoto
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502 Japan
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502 Japan
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12
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Abstract
The use of chiral nonracemic onium salts and crown ethers as effective phase-transfer catalysts have been studied intensively primarily for enantioselective carbon-carbon or carbon-heteroatom bond-forming reactions under mild biphasic conditions. An essential issue for optimal asymmetric catalysis is the rational design of catalysts for targeted reaction, which allows generation of a well-defined chiral ion pair that reacts with electrophiles in a highly efficient and stereoselective manner. This concept, together with the synthetic versatility of phase-transfer catalysis, provides a reliable and general strategy for the practical asymmetric synthesis of highly valuable organic compounds.
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Affiliation(s)
- Takashi Ooi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
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Lygo B, Gardiner SD, McLeod MC, To DCM. Diastereo- and enantioselective synthesis of alpha,beta-epoxyketones using aqueous NaOCl in conjunction with dihydrocinchonidine derived phase-transfer catalysis at room temperature. Scope and limitations. Org Biomol Chem 2007; 5:2283-90. [PMID: 17609760 DOI: 10.1039/b706546a] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper we present studies into the scope and limitations of asymmetric PTC epoxidation of enones and the oxidation-epoxidation of allylic alcohols using aqueous NaOCl in conjunction with a dihydrocinchonidine derived quaternary ammonium salt catalyst.
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Affiliation(s)
- Barry Lygo
- School of Chemistry, University of Nottingham, Nottingham, UK NG7 2RD
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Wang Y, Ye J, Liang X. Convenient Preparation of Chiralα,β-Epoxy Ketonesvia Claisen–Schmidt Condensation-Epoxidation Sequence. Adv Synth Catal 2007. [DOI: 10.1002/adsc.200600592] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hori K, Tamura M, Tani K, Nishiwaki N, Ariga M, Tohda Y. Asymmetric epoxidation catalyzed by novel azacrown ether-type chiral quaternary ammonium salts under phase-transfer catalytic conditions. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.02.142] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Fini F, Sgarzani V, Pettersen D, Herrera RP, Bernardi L, Ricci A. Phase-Transfer-Catalyzed Asymmetric Aza-Henry Reaction UsingN-Carbamoyl Imines Generated In Situ from α-Amido Sulfones. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200502646] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Fini F, Sgarzani V, Pettersen D, Herrera RP, Bernardi L, Ricci A. Phase-Transfer-Catalyzed Asymmetric Aza-Henry Reaction UsingN-Carbamoyl Imines Generated In Situ from α-Amido Sulfones. Angew Chem Int Ed Engl 2005; 44:7975-8. [PMID: 16287160 DOI: 10.1002/anie.200502646] [Citation(s) in RCA: 159] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Francesco Fini
- Dipartimento di Chimica Organica A. Mangini, Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy
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One-pot synthesis of α-diazo-β-hydroxyesters under phase-transfer catalysis and application to the catalytic asymmetric aldol reaction. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2003.11.083] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mase N, Ohno T, Hoshikawa N, Ohishi K, Morimoto H, Yoda H, Takabe K. Enantioselective alkylation using a new C3 symmetric amine-based chiral phase-transfer catalyst. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)00824-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Armstrong A. 2 Synthetic methods : Part (ii) Oxidation and reduction methods. ACTA ACUST UNITED AC 2003. [DOI: 10.1039/b212010k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Chapter 4.1 Three-membered ring systems. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0959-6380(03)80006-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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