1
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Wang Y, Li Q, Song X, Wang J, Yin X, Li SS, Wang L. Chemoselective and diastereoselective construction of 4-alkylidene-tetrahydroquinoline via a redox-neutral vinylogous cascade [1,7]-hydride transfer/6- endo-trig cyclization strategy. Org Biomol Chem 2023; 21:4007-4012. [PMID: 37128724 DOI: 10.1039/d3ob00223c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Herein, we disclose a chemoselective and diastereoselective synthesis of the medicinally significant 4-alkylidene-tetrahydroquinoline via a redox-neutral vinylogous cascade condensation/[1,7]-hydride transfer/6-endo-trig cyclization strategy, which features a novel product skeleton, high chemoselectivity and diastereoselectivity, facile introduction of 4-alkylidenyl motifs, employment of α,β,γ,δ-unsaturated dicyanoalkenes as novel hydride acceptors, and green and metal-free conditions with water as the only by-product. Additionally, the versatility of α,α-dicyanoalkenes has been fully exploited as hydride acceptors and γ-exclusive nucleophiles consecutively for accessing novel heterocyclic skeletons.
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Affiliation(s)
- Yufeng Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China.
| | - Qiang Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China.
| | - Xiaopei Song
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China.
| | - Jing Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China.
| | - Xiangcong Yin
- Hematology Diagnosis Laboratory, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Shuai-Shuai Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China.
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China.
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2
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Brodzka A, Koszelewski D, Ostaszewski R. Simultaneous Enantiodivergent Synthesis of Diverse Lactones and Lactams via Sequential One-Pot Enzymatic Kinetic Resolution-Ring-Closing Metathesis Reactions. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227696. [PMID: 36431796 PMCID: PMC9698981 DOI: 10.3390/molecules27227696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022]
Abstract
One of the goals of diversity-oriented synthesis is to achieve the structural diversity of obtained compounds. As most biologically active compounds are chiral, it is important to develop enantioselective methods of their synthesis. The application of kinetic resolution in DOS is problematic because of low efficiency (max. 50% yield) and many purification steps. The further derivatization of kinetic resolution products in DOS leads to the formation of a narrow library of compounds of the same stereochemistry. To overcome these limitations, we present a new concept in which the kinetic resolution is combined, the subsequent reaction of which in a one-pot protocol leads to the simultaneous formation of two skeletally and enantiomerically diverse platform molecules for DOS. Their further derivatization can gain access to a double-sized library of products in respect to a classical approach. The validity of our concept was evidenced in enzymatic kinetic resolution followed by a ring-closing metathesis cascade. From racemic carboxylic acid ester, a simultaneous formation of enantiopure lactones and lactams was achieved. These compounds are important building blocks in organic and medicinal chemistry and until now were synthesized in separate procedures.
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3
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Willand-Charnley R, Paris TJ. Modern Synthesis and Chemistry of Stabilized Ketene N,O-Acetals. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1713-8481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractKetene N,O-acetals are robust and versatile synthons. Herein, we outline the synthesis of stable ketene N,O-acetals in the twenty-first century. In addition, we review recent developments in the chemistry of ketene N,O-acetals, as it applies to the vinylogous Mukaiyama aldol reaction, electrolysis, and pericyclic transformations. While dated reports rely on in situ use, modern methods of ketene N,O-acetal synthesis are heavily oriented towards producing products with high ‘bench’ stability; moreover, in the present century, chemists typically enhance the stability of ketene N,O-acetals by positioning an electron-withdrawing group at the β-terminus or at the N-position. As propitious substrates in the vinylogous Mukaiyama aldol reaction, ketene N,O-acetals readily provide polyketide adducts with high regioselectivity. When exposed to electrolysis conditions, the title functional group forms a reactive radical cation and cleanly couples with a variety of activated olefins. Given their electron-rich nature, ketene N,O-acetals act as facile substrates in several rearrangement reactions; further, ketene N,O-acetals reserve the ability to act as either dienophiles or dienes in Diels–Alder reactions. Lastly, ketene N,O-acetals are seemingly more stable than their O,O-counterparts and more reactive than analogous N,N- or S,S-acetals; these factors, in combination, make ketene N,O-acetals advantageous substitutes for other ketene acetal homologues.1 Introduction2 Select Methods of Stabilization-Oriented Ketene N,O-Acetal Synthesis3 Ketene N,O-Acetals in the Vinylogous Mukaiyama Aldol Reaction4 Ketene N,O-Acetals in Anodic Coupling and Electrochemical Oxidation Reactions5 Rearrangement and Diels–Alder Reactions of Ketene N,O-Acetals6 Conclusions, Perspectives, and Directions
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Affiliation(s)
| | - Timothy J. Paris
- Medicinal Chemistry Knowledge Center, Stanford ChEM-H, Stanford University
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4
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Pasuparthy SD, Maiti B. Enantioselective Organocatalytic Michael Addition Reactions Catalyzed by Proline/Prolinol/Supported Proline based Organocatalysts: An Overview. ChemistrySelect 2022. [DOI: 10.1002/slct.202104261] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Sai Deepak Pasuparthy
- Department of Chemistry School of Advanced Sciences Vellore Institute of Technology Vellore 632014 India
| | - Barnali Maiti
- Department of Chemistry School of Advanced Sciences Vellore Institute of Technology Vellore 632014 India
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5
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Silyldienolates in Organocatalytic Enantioselective Vinylogous Mukaiyama-Type Reactions: A Review. Molecules 2021; 26:molecules26226902. [PMID: 34833996 PMCID: PMC8620713 DOI: 10.3390/molecules26226902] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/13/2021] [Accepted: 11/14/2021] [Indexed: 11/17/2022] Open
Abstract
Mukaiyama aldol, Mannich, and Michael reactions are arguably amongst the most important C-C bond formation processes and enable access to highly relevant building blocks of various natural products. Their vinylogous extensions display equally high potential in the formation of important key intermediates featuring even higher functionalization possibilities through an additional conjugated C-C double bond. Hence, it is much desired to develop highly selective vinylogous methods in order to enable unconventional, more efficient asymmetric syntheses of biologically active compounds. In this regard, silyl-dienolates were discovered to display high regioselectivities due to their tendency toward γ-additions. The control of the enantio- and diastereoinduction of these processes have been for a long time dominated by transition metal catalysis, but it received serious competition by the application of organocatalytic approaches since the beginning of this century. In this review, the organocatalytic applications of silyl-dienolates in asymmetric vinylogous C-C bond formations are summarized, focusing on their scope, characteristics, and limitations.
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6
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Elkin PK, Durfee ND, Rawal VH. Diels-Alder Reactions of 1-Alkoxy-1-amino-1,3-butadienes: Direct Synthesis of 6-Substituted and 6,6-Disubstituted 2-Cyclohexenones and 6-Substituted 5,6-Dihydropyran-2-ones. Org Lett 2021; 23:5288-5293. [PMID: 34062059 PMCID: PMC9078830 DOI: 10.1021/acs.orglett.1c01031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the cycloaddition reactions of 1-alkoxy-1-amino-1,3-butadienes. These doubly activated dienes are prepared on a multigram scale from crotonic acid chloride and its derivatives. The dienes undergo Diels-Alder (DA) and hetero-Diels-Alder (HDA) reactions under mild reaction conditions with a variety of electron-deficient dienophiles to afford cycloadducts in good yields with excellent regioselectivities. The hydrolysis of the DA cycloadducts provides 6-substituted and 6,6-disubstituted 2-cylohexenones, which are versatile building blocks for complex molecule synthesis. The corresponding HDA cycloadducts afford 6-substituted 5,6-dihydropyran-2-ones.
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Affiliation(s)
- Pavel K Elkin
- Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Nathaniel D Durfee
- Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Viresh H Rawal
- Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
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7
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Tian Y, Shang Y, Su W. DBU‐Catalyzed Regioselective
α
‐Alkylation of Enones Using the Vinylogous Strategy. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yawei Tian
- College of Chemistry Fuzhou University 2 Xueyuan Road Fuzhou Fujian 350108 P. R. China
- State Key Laboratory of Structural Chemistry Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Yangqiao West Road 155 Fuzhou Fujian 350002 P. R. China
| | - Yaping Shang
- State Key Laboratory of Structural Chemistry Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Yangqiao West Road 155 Fuzhou Fujian 350002 P. R. China
| | - Weiping Su
- College of Chemistry Fuzhou University 2 Xueyuan Road Fuzhou Fujian 350108 P. R. China
- State Key Laboratory of Structural Chemistry Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Yangqiao West Road 155 Fuzhou Fujian 350002 P. R. China
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8
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9
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Guo M, Dong F, Yin X, Xu L, Wang L, Li SS. Facile syntheses of tetrahydroquinolines and 1,2-dihydroquinolines via vinylogous cascade hydride transfer/cyclization. Org Chem Front 2021. [DOI: 10.1039/d0qo01622e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The medicinally significant 3-monosubstituted tetrahydroquinolines and 1,2-dihydroquinolines were controllably constructed via redox-neutral vinylogous cascade condensation/[1,5]-hydride transfer/cyclization in EtOH.
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Affiliation(s)
- Mengzhu Guo
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Fengying Dong
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Xiangcong Yin
- Hematology Diagnosis Laboratory
- The Affiliated Hospital of Qingdao University
- Qingdao
- P. R. China
| | - Lubin Xu
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
- College of Chemistry and Molecular Engineering
| | - Shuai-Shuai Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
- College of Chemistry and Molecular Engineering
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10
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Zou C, Lv Y, Lu M, Li X, Zhang L, Yang L, Liu Z, Ke Y, Song G, Ye J. Regioselective and diastereodivergent organocatalytic asymmetric vinylogous Michael addition. Org Chem Front 2021. [DOI: 10.1039/d1qo00371b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Regioselective and diastereodivergent γ-position asymmetric vinylogous Michael addition (AVMA) of cyclohex-2-enones to nitroalkenes and γ′-AVMA between cyclohex-3-enones and nitroalkenes.
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Affiliation(s)
- Chuncheng Zou
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- Shanghai Key Laboratory of Chemistry Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Yanting Lv
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Min Lu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xin Li
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Lei Zhang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Lei Yang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhen Liu
- State Key Laboratory of Chemical Engineering. East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yanxiong Ke
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Gonghua Song
- Shanghai Key Laboratory of Chemistry Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Jinxing Ye
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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11
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Zhang XY, You Y, Wang ZH, Zhao JQ, Yuan WC. Organocatalytic asymmetric tandem α-functionalization/1,3-proton shift reaction of benzylidene succinimides with β-trifluoromethyl enones. Chem Commun (Camb) 2020; 56:13449-13452. [PMID: 33043913 DOI: 10.1039/d0cc05474g] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A bifunctional thiourea-catalyzed asymmetric tandem α-functionalization/1,3-proton shift reaction of benzylidene succinimides with β-trifluoromethyl enones has been developed. A series of F3C-containing chiral Rauhut-Currier type products were obtained in moderate to high yields (up to 98%) with excellent enantioselectivities (up to >99% ee). This represents the first example of benzylidene succinimides undergoing tandem α-functionalization/1,3-proton shift in catalytic enantioselective transformation.
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Affiliation(s)
- Xia-Yan Zhang
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Scences, Chengdu 610041, China.
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12
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Hu S, Wang J, Huang G, Zhu K, Chen F. Organocatalytic Asymmetric Domino Oxa-Michael-Mannich-[1,3]-Amino Rearrangement Reaction of N-Tosylsalicylimines to α,β-Unsaturated Aldehydes by Diarylprolinol Silyl Ethers. J Org Chem 2020; 85:4011-4018. [PMID: 31829579 DOI: 10.1021/acs.joc.9b02939] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An organocatalytic asymmetric enantioselective domino oxa-Michael-Mannich-[1,3]-amino rearrangement reaction of N-tosylsalicylimines with a wide range of α,β-unsaturated aldehydes utilizing diarylprolinol silyl ether catalysis is described. The catalytic reactions proceed with excellent enantioselectivity (up to 99% ee) to produce the corresponding chair N-tosylimines-chromenes with a yield of up to 99%, tolerating a range of functional groups. This methodology offers a new method with great potential to further extend the synthetic power and versatility of chiral aminocatalysis.
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Affiliation(s)
- Sha Hu
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Jiaqi Wang
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Guanxin Huang
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Kejie Zhu
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Fener Chen
- Department of Chemistry, Fudan University, Shanghai 200433, China.,Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, 18 Chao Wang Road, Hangzhou 310014, China
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13
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Curti C, Battistini L, Sartori A, Zanardi F. New Developments of the Principle of Vinylogy as Applied to π-Extended Enolate-Type Donor Systems. Chem Rev 2020; 120:2448-2612. [PMID: 32040305 PMCID: PMC7993750 DOI: 10.1021/acs.chemrev.9b00481] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/19/2022]
Abstract
The principle of vinylogy states that the electronic effects of a functional group in a molecule are possibly transmitted to a distal position through interposed conjugated multiple bonds. As an emblematic case, the nucleophilic character of a π-extended enolate-type chain system may be relayed from the legitimate α-site to the vinylogous γ, ε, ..., ω remote carbon sites along the chain, provided that suitable HOMO-raising strategies are adopted to transform the unsaturated pronucleophilic precursors into the reactive polyenolate species. On the other hand, when "unnatural" carbonyl ipso-sites are activated as nucleophiles (umpolung), vinylogation extends the nucleophilic character to "unnatural" β, δ, ... remote sites. Merging the principle of vinylogy with activation modalities and concepts such as iminium ion/enamine organocatalysis, NHC-organocatalysis, cooperative organo/metal catalysis, bifunctional organocatalysis, dicyanoalkylidene activation, and organocascade reactions represents an impressive step forward for all vinylogous transformations. This review article celebrates this evolutionary progress, by collecting, comparing, and critically describing the achievements made over the nine year period 2010-2018, in the generation of vinylogous enolate-type donor substrates and their use in chemical synthesis.
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Affiliation(s)
| | | | | | - Franca Zanardi
- Dipartimento di Scienze degli
Alimenti e del Farmaco, Università
di Parma, Parco Area delle Scienze 27A, 43124 Parma, Italy
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14
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Futaki E, Takeda N, Yasui M, Shinada T, Miyata O, Ueda M. γ-C (sp 3)-H bond functionalisation of α,β-unsaturated amides through an umpolung strategy. Org Biomol Chem 2020; 18:1563-1566. [PMID: 32030394 DOI: 10.1039/d0ob00125b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nucleophilic γ-phenylation and γ-alkylation of α,β-unsaturated amides have been developed. This umpolung reaction allows the regioselective introduction of phenyl and alkyl groups to a vinylketene N,O-acetal, which is generated in situ from an α,β-unsaturated N-alkoxyamide, followed by N-O bond cleavage in a two-step, one-pot process.
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Affiliation(s)
- Erika Futaki
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan.
| | - Norihiko Takeda
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan.
| | - Motohiro Yasui
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan.
| | - Tetsuro Shinada
- Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi, Osaka, 558-8585, Japan
| | - Okiko Miyata
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan. and Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi, Osaka, 558-8585, Japan
| | - Masafumi Ueda
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan.
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15
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Luo G, Huang Z, Zhuo S, Mou C, Wu J, Jin Z, Chi YR. Access to Cyclic β‐Amino Acids by Amine‐Catalyzed Enantioselective Addition of the γ‐Carbon Atoms of α,β‐Unsaturated Imines to Enals. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Guoyong Luo
- School of PharmacyGuizhou University of Traditional Chinese Medicine Huaxi District Guiyang 550025 China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Zhijian Huang
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Shitian Zhuo
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Chengli Mou
- School of PharmacyGuizhou University of Traditional Chinese Medicine Huaxi District Guiyang 550025 China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Jian Wu
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
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16
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Luo G, Huang Z, Zhuo S, Mou C, Wu J, Jin Z, Chi YR. Access to Cyclic β‐Amino Acids by Amine‐Catalyzed Enantioselective Addition of the γ‐Carbon Atoms of α,β‐Unsaturated Imines to Enals. Angew Chem Int Ed Engl 2019; 58:17189-17193. [DOI: 10.1002/anie.201908896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/08/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Guoyong Luo
- School of PharmacyGuizhou University of Traditional Chinese Medicine Huaxi District Guiyang 550025 China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Zhijian Huang
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Shitian Zhuo
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Chengli Mou
- School of PharmacyGuizhou University of Traditional Chinese Medicine Huaxi District Guiyang 550025 China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Jian Wu
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education, Guizhou University Huaxi District Guiyang 550025 China
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17
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Krishna Y, Shilpa K, Tanaka F. Intramolecular Mannich and Michael Annulation Reactions of Lactam Derivatives Bearing Enals To Afford Bicyclic N-Heterocycles. Org Lett 2019; 21:8444-8448. [DOI: 10.1021/acs.orglett.9b03210] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yarkali Krishna
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Kola Shilpa
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Fujie Tanaka
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
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18
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Zhang Z, Zhao D, He Y, Yang Z, Gong J. Total syntheses of dehydrobotrydienal, dehydrobotrydienol and 10-oxodehydrodihydrobotrydial. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.03.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Urruzuno I, Mugica O, Zanella G, Vera S, Gómez‐Bengoa E, Oiarbide M, Palomo C. α‐Branched Ketone Dienolates: Base‐Catalysed Generation and Regio‐ and Enantioselective Addition Reactions. Chemistry 2019; 25:9701-9709. [DOI: 10.1002/chem.201901694] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Iñaki Urruzuno
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Odei Mugica
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Giovanna Zanella
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Silvia Vera
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Enrique Gómez‐Bengoa
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Mikel Oiarbide
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Claudio Palomo
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
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20
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Li SW, Du Y, Kang Q. A chiral-at-metal asymmetric catalyzed vinylogous Michael addition of ortho-methyl aromatic nitro compounds for isoxazole derivative synthesis. Org Chem Front 2019. [DOI: 10.1039/c9qo00676a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A chiral-at-metal rhodium(iii) complex catalyzed asymmetric vinylogous Michael addition of 5-methyl 4-nitroisoxazoles with α,β-unsaturated 2-acyl imidazoles has been developed, delivering the corresponding adducts with up to 96% yield and 97% ee.
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Affiliation(s)
- Shi-Wu Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Yu Du
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Qiang Kang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
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21
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Yadav D, Shukla G, Ansari MA, Srivastava A, Singh MS. Chemoselective one-pot access to benzo[e]indole-4,5-diones and naphtho[2,1-b]thiophene-4,5-diones via copper-catalyzed oxidative [3 + 2] annulation of α-oxoketene N,S-acetals/β-ketothioamides with α-/β-naphthols. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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22
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Frías M, Cieślik W, Fraile A, Rosado-Abón A, Garrido-Castro AF, Yuste F, Alemán J. Development and Application of Asymmetric Organocatalytic Mukaiyama and Vinylogous Mukaiyama-Type Reactions. Chemistry 2018; 24:10906-10933. [DOI: 10.1002/chem.201801866] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Indexed: 02/02/2023]
Affiliation(s)
- María Frías
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Calle Francisco Tomás y Valiente, 7; Cantoblanco 28049 Madrid Spain
| | - Wioleta Cieślik
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Calle Francisco Tomás y Valiente, 7; Cantoblanco 28049 Madrid Spain
| | - Alberto Fraile
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Calle Francisco Tomás y Valiente, 7; Cantoblanco 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem); Universidad Autónoma de Madrid; 28049 Madrid Spain
| | - Anielka Rosado-Abón
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior, Cd. Universitaria, Coyoacán 04510 México D.F. México
| | - Alberto F. Garrido-Castro
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Calle Francisco Tomás y Valiente, 7; Cantoblanco 28049 Madrid Spain
| | - Francisco Yuste
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior, Cd. Universitaria, Coyoacán 04510 México D.F. México
| | - José Alemán
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Calle Francisco Tomás y Valiente, 7; Cantoblanco 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem); Universidad Autónoma de Madrid; 28049 Madrid Spain
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23
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Grau D, Grau BW, Hampel F, Tsogoeva SB. Three-Component Domino Knoevenagel/Vinylogous Michael Reaction: Entry to Challenging o
-Terphenyls. Chemistry 2018; 24:6551-6556. [DOI: 10.1002/chem.201800048] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Dominik Grau
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander University of Erlangen-Nürnberg; Nikolaus-Fiebiger-Strasse 10 91058 Erlangen Germany
| | - Benedikt W. Grau
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander University of Erlangen-Nürnberg; Nikolaus-Fiebiger-Strasse 10 91058 Erlangen Germany
| | - Frank Hampel
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander University of Erlangen-Nürnberg; Nikolaus-Fiebiger-Strasse 10 91058 Erlangen Germany
| | - Svetlana B. Tsogoeva
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander University of Erlangen-Nürnberg; Nikolaus-Fiebiger-Strasse 10 91058 Erlangen Germany
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24
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Duce S, Alonso I, Lamsabhi AM, Rodrigo E, Morales S, García Ruano JL, Poveda A, Mauleón P, Cid MB. The Acidity of a Carbon Nucleophile Dictates Enantioselectivity and Reactivity in Michael Additions to Aromatic and Aliphatic Enals via Iminium Activation. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02806] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sara Duce
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Inés Alonso
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute
for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Al Mokhtar Lamsabhi
- Institute
for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Departamento
de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Eduardo Rodrigo
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Sara Morales
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - José Luis García Ruano
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Ana Poveda
- Chemical
Glycobiology Lab, CIC bioGUNE, Bizkaia Science and Technology Park, Building 800, 48160 Derio-Bizkaia, Spain
| | - Pablo Mauleón
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute
for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - M. Belén Cid
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute
for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
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25
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Affiliation(s)
- Yanli Yin
- College of Bioengineering; Henan University of Technology; Zhengzhou Henan 450001 P.R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Kaifeng Henan 475004 P.R. China
| | - Zhiyong Jiang
- College of Bioengineering; Henan University of Technology; Zhengzhou Henan 450001 P.R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Kaifeng Henan 475004 P.R. China
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26
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Lee GS, Namkoong G, Park J, Chen DY. Total Synthesis of Strychnine. Chemistry 2017; 23:16189-16193. [DOI: 10.1002/chem.201704455] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Indexed: 12/30/2022]
Affiliation(s)
- Geun Seok Lee
- Department of Chemistry Seoul National University, Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - Gil Namkoong
- Department of Chemistry Seoul National University, Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - Jisook Park
- Department of Chemistry Seoul National University, Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - David Y.‐K. Chen
- Department of Chemistry Seoul National University, Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
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27
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Jia ZL, Wang Y, Zhao CG, Zhang XH, Xu PF. Highly Enantioselective Construction of Hajos–Wiechert Ketone Skeletons via an Organocatalytic Vinylogous Michael/Stetter Relay Sequence. Org Lett 2017; 19:2130-2133. [DOI: 10.1021/acs.orglett.7b00767] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Zhi-Long Jia
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yao Wang
- School
of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Chuan-Gang Zhao
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiao-Hai Zhang
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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28
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Jin J, Xu Q, Deng W. DMAP-Catalyzed [4 + 2] Cycloaddition of α
,β
-Unsaturated Carboxylic Acids with Ketones for Synthesis of α
,β
-Unsaturated δ
-Lactones. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600929] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jinghai Jin
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy; East China University of Science and Technology; Shanghai 200237 China
| | - Qinchang Xu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy; East China University of Science and Technology; Shanghai 200237 China
| | - Weiping Deng
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy; East China University of Science and Technology; Shanghai 200237 China
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29
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Guo Q, Fraboni AJ, Brenner-Moyer SE. Direct Diastereo- and Enantioselective Vinylogous Michael Additions of Linear Enones. Org Lett 2016; 18:2628-31. [PMID: 27186662 DOI: 10.1021/acs.orglett.6b01050] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A direct vinylogous Michael addition using linear vinylogous Michael donors has been developed. Notably, even γ-substituted Michael donors cleanly afforded γ-alkylated products in high yield and ee by this method. Moreover, control experiments revealed that, for these and related linear vinylogous Michael donors, the size of the Michael acceptor strongly influences whether α- or γ-alkylation occurs, not simply blocking effects of cocatalysts as suggested previously.
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Affiliation(s)
- Qunsheng Guo
- Department of Chemistry, Rutgers University , 73 Warren Street, Newark, New Jersey 07102, United States
| | - Americo J Fraboni
- Department of Chemistry, Rutgers University , 73 Warren Street, Newark, New Jersey 07102, United States
| | - Stacey E Brenner-Moyer
- Department of Chemistry, Rutgers University , 73 Warren Street, Newark, New Jersey 07102, United States
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30
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Loh CCJ, Schmid M, Peters B, Fang X, Lautens M. Exploiting Distal Reactivity of Coumarins: A Rhodium-Catalyzed Vinylogous Asymmetric Ring-Opening Reaction. Angew Chem Int Ed Engl 2016; 55:4600-4. [DOI: 10.1002/anie.201600654] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Charles C. J. Loh
- Department of Chemistry; Davenport Chemical Laboratories, University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Matthias Schmid
- Department of Chemistry; Davenport Chemical Laboratories, University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Brendan Peters
- Department of Chemistry; Davenport Chemical Laboratories, University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Xiang Fang
- Department of Chemistry; Davenport Chemical Laboratories, University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
- Laboratory for Advanced Material and Institute of Fine Chemicals; School of Chemistry and Molecular Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Mark Lautens
- Department of Chemistry; Davenport Chemical Laboratories, University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
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31
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Loh CCJ, Schmid M, Peters B, Fang X, Lautens M. Exploiting Distal Reactivity of Coumarins: A Rhodium-Catalyzed Vinylogous Asymmetric Ring-Opening Reaction. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600654] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Charles C. J. Loh
- Department of Chemistry; Davenport Chemical Laboratories, University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Matthias Schmid
- Department of Chemistry; Davenport Chemical Laboratories, University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Brendan Peters
- Department of Chemistry; Davenport Chemical Laboratories, University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Xiang Fang
- Department of Chemistry; Davenport Chemical Laboratories, University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
- Laboratory for Advanced Material and Institute of Fine Chemicals; School of Chemistry and Molecular Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Mark Lautens
- Department of Chemistry; Davenport Chemical Laboratories, University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
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32
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Boyce GR, Johnson JS. An Asymmetric Vinylogous Michael Cascade of Silyl Glyoximide, Vinyl Grignard, and Nitroalkenes via Long Range Stereoinduction. J Org Chem 2016; 81:1712-7. [PMID: 26833255 PMCID: PMC4761320 DOI: 10.1021/acs.joc.5b02693] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A diastereoselective auxiliary-mediated vinylation/[1,2]-Brook rearrangement/vinylogous Michael cascade of silyl glyoximide, vinylmagnesium bromide, and nitroalkenes is described. The reaction occurs with complete regio- and diastereocontrol in good yield. The diastereoselectivity is induced by a rare instance of 1,7-chirality transfer that is hypothesized to arise from a trans-multihetero-decalin transition state.
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Affiliation(s)
- Gregory R. Boyce
- Department of Chemistry and Physics, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Jeffrey S. Johnson
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-3290, United States
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33
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Li TZ, Xie J, Jiang Y, Sha F, Wu XY. Enantioselective Vinylogous Michael/Cyclization Cascade Reaction of Acyclic β,γ-Unsaturated Amides with Isatylidene Malononitriles: Asymmetric Construction of Spirocyclic Oxindoles. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500469] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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34
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Affiliation(s)
- Hui Li
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Jimmy Wu
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
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35
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Desimoni G, Faita G, Quadrelli P. Enantioselective Catalytic Reactions with N-Acyliden Penta-atomic Aza-heterocycles. Heterocycles as Masked Bricks To Build Chiral Scaffolds. Chem Rev 2015; 115:9922-80. [DOI: 10.1021/acs.chemrev.5b00097] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giovanni Desimoni
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Giuseppe Faita
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Paolo Quadrelli
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
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36
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Huang F, Wu P, Wang L, Chen J, Sun C, Yu Z. Copper-mediated intramolecular oxidative C-H/N-H cross-coupling of α-alkenoyl ketene N,S-acetals to synthesize pyrrolone derivatives. Chem Commun (Camb) 2015; 50:12479-81. [PMID: 25188605 DOI: 10.1039/c4cc05837b] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CuCl2 and CuBr2-mediated intramolecular oxidative C-H/N-H cross-coupling/halogenation of β-thioalkyl-substituted α-alkenoyl ketene N,S-acetals occurred efficiently, affording 4-halo-5-thioalkyl-3-pyrrolones. Tunable C-S and C-halo bond transformations of the resultant pyrrolone derivatives led to highly functionalized N-heterocyclic compounds.
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Affiliation(s)
- Fei Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
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37
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Ikeda N, Konno T. Highly regio- and stereoselective hydrosilylation of β-fluoroalkylated α,β-unsaturated ketones. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2015.02.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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38
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Zhang Y, Wei B, Lin H, Cui W, Zeng X, Fan X. Organocatalyzed Asymmetric Vinylogous Michael Reactions of 3,5-Dialkyl-Substituted 4-Nitroisoxazoles: A Direct Method for the Synthesis of Chiral Isoxazole Derivatives. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400833] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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39
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Cheng JT, Chen XY, Gao ZH, Ye S. N-Heterocyclic Carbene Catalyzed Generation and [4+2] Annulation of Unsubstituted Dienolate - Enantioselective Synthesis of Spirocyclic Oxindolodihydropyranones. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403395] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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40
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Nareddy PR, Schneider C. A highly enantioselective, organocatalytic [3+2]-cycloannulation reaction towards the de novo-synthesis of 1-cyclopentenyl-α-keto esters. Chem Commun (Camb) 2015; 51:14797-800. [DOI: 10.1039/c5cc05967d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel [3+2]-cycloannulation process produces cyclopentenes with good yields and excellent enantioselectivity via a domino-vinylogous Michael–Knoevenagel reaction.
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41
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Zhan G, He Q, Yuan X, Chen YC. Asymmetric direct vinylogous Michael additions of allyl alkyl ketones to maleimides through dienamine catalysis. Org Lett 2014; 16:6000-3. [PMID: 25356725 DOI: 10.1021/ol503017h] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A direct catalytic asymmetric γ-regioselective vinylogous Michael addition of allyl alkyl ketones to maleimides has been developed through dienamine catalysis of a simple chiral 1,2-diphenylethanediamine, giving multifunctional products in excellent enantioselectivity and with high yields. The success of this catalytic strategy relies on the unique inducing effect of deconjugated β,γ-C═C bond, which facilitates the formation of the otherwise unfavored extended dienamine species.
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Affiliation(s)
- Gu Zhan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education, West China School of Pharmacy, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University , Chengdu 610041, China
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42
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Gu Y, Wang Y, Yu TY, Liang YM, Xu PF. Rationally Designed Multifunctional Supramolecular Iminium Catalysis: Direct Vinylogous Michael Addition of Unmodified Linear Dienol Substrates. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406786] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Gu Y, Wang Y, Yu TY, Liang YM, Xu PF. Rationally Designed Multifunctional Supramolecular Iminium Catalysis: Direct Vinylogous Michael Addition of Unmodified Linear Dienol Substrates. Angew Chem Int Ed Engl 2014; 53:14128-31. [DOI: 10.1002/anie.201406786] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 09/19/2014] [Indexed: 11/12/2022]
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44
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Huang F, Wu P, Wang L, Chen J, Sun C, Yu Z. Copper-Mediated Intramolecular Oxidative C–H/C–H Cross-Coupling of α-Oxo Ketene N,S-Acetals for Indole Synthesis. J Org Chem 2014; 79:10553-60. [DOI: 10.1021/jo5014542] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Fei Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Ping Wu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Liandi Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Jiping Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Chenglin Sun
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, People’s Republic of China
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45
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Schneider C, Abels F. Catalytic, enantioselective vinylogous Michael reactions. Org Biomol Chem 2014; 12:3531-43. [DOI: 10.1039/c4ob00332b] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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