1
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Chennamsetti H, Rathore KS, Chatterjee S, Mandal PK, Katukojvala S. Triple Nucleophilic Head-to-Tail Cascade Polycyclization of Diazodienals via Combination Catalysis: Direct Access to Cyclopentane Fused Aza-Polycycles with Six-Contiguous Stereocenters. JACS AU 2024; 4:2099-2107. [PMID: 38938806 PMCID: PMC11200238 DOI: 10.1021/jacsau.4c00134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/15/2024] [Accepted: 04/15/2024] [Indexed: 06/29/2024]
Abstract
Reported herein are the bench stable (2E,4E)-diazohexa-2,4-dienals (diazodienals) and their unprecedented polycyclization with aldimine and arylamines enabled by Rh(II)/Brønsted acid relay catalysis. This scalable and atom-economical reaction provides direct access to the biologically important azatricyclo[6.2.1.04,11]undecane fused polycycles having six-contiguous stereocenters. Mechanistic studies revealed that polycyclization proceeds through an unusual triple-nucleophilic cascade initiated by aldimine attack on remote Rh-carbenoid, 6π-electrocyclization of aza-trienyl azomethine ylide, stereoselective aza-Michael addition via iminium activation, and inverse electron-demand intramolecular aza Diels-Alder reaction. The π-π secondary interactions play a crucial role in the preorganization of reactive intermediates for the pericyclic reactions and, hence, the overall efficiency of the polycyclization.
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Affiliation(s)
| | | | | | | | - Sreenivas Katukojvala
- Department of Chemistry, Indian
Institute of Science Education & Research
Bhopal, Bhopal, Madhya Pradesh 462066, India
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2
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Zhang X. Vallesamidine and schizozygane alkaloids: rearranged monoterpene indole alkaloids and synthetic endeavours. Nat Prod Rep 2024; 41:784-812. [PMID: 38275179 DOI: 10.1039/d3np00048f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Covering 1963 to 2023Monoterpene indole alkaloids are the main sub-family of indole alkaloids with fascinating structures, stereochemistry, and diverse bioactivities (e.g., anticancer, anti-malarial and anti-arrhythmic etc.). Vallesamidine alkaloids and structurally more complex schizozygane alkaloids are small groups of rearranged monoterpene indole alkaloids with a unique 2,2,3-trialkylated indoline scaffold, while schizozygane alkaloids can generate a further rearranged skeleton, isoschizozygane, possessing a tetra-substituted, bridged tetrahydroquinoline core. In this review, the origin and structural features of vallesamidine and schizozygane alkaloids are introduced, and a discussion on the relationship of these alkaloids with aspidosperma alkaloids and a structural rearrangement hypothesis based on published studies is followed. Moreover, uncommon skeletons and potential bioactivities, such as anti-malarial and anti-tumour activities, make such alkaloids important synthetic targets, attracting research groups globally to accomplish total synthesis, resulting in impressive works on novel total synthesis, formal synthesis, and construction of key intermediates. These synthetic endeavours are systematically reviewed and highlighted with key strategies and efficiencies, providing different viewpoints on molecular structures and promoting the extension of chemical space and mining of new active scaffolds.
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Affiliation(s)
- Xiangyu Zhang
- Department of Biomedical Engineering and Diagnostic Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
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3
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Liang Z, Yu Y, Zhang L, Xue G, Liu M, Zhang Y, Huang M, Cai L, Cai S. Visible-Light-Enabled Catalytic Approach to N, O-Spirocycles through Amidyl Radical Addition/Cyclization. Org Lett 2024; 26:298-303. [PMID: 38153355 DOI: 10.1021/acs.orglett.3c03855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
A rational combination of photoredox catalyst anthraquinone and hydrogen atom transfer (HAT) catalyst methyl thioglycolate allows for the rapid and straightforward conversion of a range of 2-amidated acetylenic alcohols to multifunctional N,O-spirocycles under visible light irradiation. With oxygen as the sole terminal oxidant, these reactions can be carried out efficiently at room temperature without the involvement of transition metals or strong oxidants. The successful application of this mild catalytic strategy in the late-stage functionalization of bioactive skeletons further highlights its practical value.
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Affiliation(s)
- Zhihui Liang
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry Chemical Engineering, and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Yushen Yu
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry Chemical Engineering, and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Lele Zhang
- Key Laboratory of Chemical Genomics of Guangdong Province, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen 518055, China
| | - Guotao Xue
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry Chemical Engineering, and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Min Liu
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry Chemical Engineering, and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Yirui Zhang
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry Chemical Engineering, and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Mingqiang Huang
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry Chemical Engineering, and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Lina Cai
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry Chemical Engineering, and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Shunyou Cai
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, School of Chemistry Chemical Engineering, and Environment, Minnan Normal University, Zhangzhou 363000, China
- Key Laboratory of Chemical Genomics of Guangdong Province, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen 518055, China
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4
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Wang Q, Shih JL, Tsui KY, Laconsay CJ, Tantillo DJ, May JA. Experimental and Computational Mechanistic Study of Carbonazidate-Initiated Cascade Reactions. J Org Chem 2022; 87:8983-9000. [PMID: 35758036 DOI: 10.1021/acs.joc.2c00696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A variety of Huisgen cyclization or nitrene/carbene alkyne cascade reactions with different types of termination were investigated. Accessible nitrene precursors were assessed, and carbonazidates were found to be the only effective initiators. Solvents, terminal alkynyl substituents, and catalysts can all impact the reaction outcome. Study of the mechanism both computationally (by density functional theory) and experimentally revealed relevant intermediates and plausible reaction pathways.
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Affiliation(s)
- Qinxuan Wang
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Jiun-Le Shih
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Ka Yi Tsui
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
| | - Croix J Laconsay
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
| | - Dean J Tantillo
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
| | - Jeremy A May
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
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5
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More RR, Kadam AB, Humne VT, Junne SB. Iodine‐mediated expedient synthesis of sulfur‐nitrogen containing heteroaminals under acidic condition. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Archana B. Kadam
- P. G. Department of Chemistry Yeshwant Mahavidyalala Nanded India
| | - Vivek T. Humne
- Department of Chemistry Shri R. R. Lahoti Science College Morshi India
| | - Subhash B. Junne
- P. G. Department of Chemistry Yeshwant Mahavidyalala Nanded India
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6
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Bakthadoss M, Vinayagam V. Construction of hybrid polycyclic quinolinobenzo[a]phenazinone architectures using solid-state melt reaction (SSMR). Mol Divers 2021; 25:2447-2458. [PMID: 32367313 DOI: 10.1007/s11030-020-10090-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 04/15/2020] [Indexed: 11/30/2022]
Abstract
An efficient and versatile protocol for the synthesis of hybrid polycyclic quinolinobenzo[a]phenazinones has been developed under SSMR condition via intramolecular domino Knoevenagel-hetero-Diels-Alder reaction involving the generation of two new six membered fused rings and three contiguous stereogenic centers.
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Affiliation(s)
- Manickam Bakthadoss
- Department of Chemistry, Pondicherry University, Pondicherry, 605 014, India.
| | - Varathan Vinayagam
- Department of Chemistry, Pondicherry University, Pondicherry, 605 014, India
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7
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Vachan BS, Karuppasamy M, Jan G, Bhuvanesh N, Maheswari CU, Sridharan V. Direct Access to Bridged Tetrahydroquinolines and Chromanes via an InCl 3-Catalyzed Sequential Three-Component Cascade. J Org Chem 2020; 85:8062-8073. [PMID: 32452689 DOI: 10.1021/acs.joc.0c00893] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A sequential three-component cascade process was developed for the synthesis of bridged tetrahydroquinolines and chromanes bearing 2,6-methanobenzo[d][1,3]diazocine and 2,6-methanobenzo[g][1,3]oxazocine scaffolds, respectively, in good yields from readily available materials. The InCl3-catalyzed reaction progressed via enamine formation, Michael addition, intramolecular cyclization, and intramolecular iminium ion cyclization steps. Notably, this high atom economic approach (-2H2O) allowed the generation of four new bonds (1 C-C and 3 C-N or 1 C-C, 1 C-O and 2 C-N) and two heterocyclic rings in a single operation.
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Affiliation(s)
- B S Vachan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Muthu Karuppasamy
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Gowsia Jan
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), Samba, Jammu 181143, Jammu and Kashmir, India
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A & M University, College Station, Texas 77843, United States
| | - C Uma Maheswari
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Vellaisamy Sridharan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India.,Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), Samba, Jammu 181143, Jammu and Kashmir, India
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8
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Wang Q, May JA. Synthesis of Bridged Azacycles and Propellanes via Nitrene/Alkyne Cascades. Org Lett 2020; 22:3039-3044. [PMID: 32243170 DOI: 10.1021/acs.orglett.0c00798] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A nitrene/alkyne cascade reaction terminating in C-H bond insertion to form functionalized bridged azacycles from carbonazidates is presented. Due to an initial Huisgen cyclization, all carbonazidates reacted with the alkyne in an exo mode in contrast to the use of sulfamate esters, which react predominately in an endo mode. Substrates with different ring sizes as well as different aryl and heteroaryl groups were also explored. Variation of the nitrene tether showed that 7-membered rings were the maximum ring size to be formed by nitrene attack on the alkyne. Examples incorporating stereocenters on the carbonazidate's tether induced diasteroselectivity in the formation of the bridged ring and two new stereocenters. Additionally, propellanes containing aminals, hemiaminals, and thioaminals formed from the bridged azacycles in the same reaction via an acid-promoted rearrangement.
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Affiliation(s)
- Qinxuan Wang
- Department of Chemistry, University of Houston, 3585 Cullen Boulevard, Fleming Building Room 112, Houston, Texas 77204-5003, United States
| | - Jeremy A May
- Department of Chemistry, University of Houston, 3585 Cullen Boulevard, Fleming Building Room 112, Houston, Texas 77204-5003, United States
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9
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Leitch JA, Rogova T, Duarte F, Dixon DJ. Dearomative Photocatalytic Construction of Bridged 1,3‐Diazepanes. Angew Chem Int Ed Engl 2020; 59:4121-4130. [DOI: 10.1002/anie.201914390] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/04/2019] [Indexed: 12/26/2022]
Affiliation(s)
- Jamie A. Leitch
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Tatiana Rogova
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Fernanda Duarte
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Darren J. Dixon
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
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10
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Leitch JA, Rogova T, Duarte F, Dixon DJ. Dearomative Photocatalytic Construction of Bridged 1,3‐Diazepanes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914390] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jamie A. Leitch
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Tatiana Rogova
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Fernanda Duarte
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Darren J. Dixon
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
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11
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Zhang X, Anderson JC. A Divergent Synthetic Route to the Vallesamidine and Schizozygine Alkaloids: Total Synthesis of (+)‐Vallesamidine and (+)‐14,15‐Dehydrostrempeliopine. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiangyu Zhang
- Department of ChemistryUniversity College London 20 Gordon Street London WC1H 0AJ UK
| | - James C. Anderson
- Department of ChemistryUniversity College London 20 Gordon Street London WC1H 0AJ UK
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12
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Zhang X, Anderson JC. A Divergent Synthetic Route to the Vallesamidine and Schizozygine Alkaloids: Total Synthesis of (+)-Vallesamidine and (+)-14,15-Dehydrostrempeliopine. Angew Chem Int Ed Engl 2019; 58:18040-18045. [PMID: 31538685 DOI: 10.1002/anie.201910593] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Indexed: 11/05/2022]
Abstract
The total synthesis of representative members of the schizozygine alkaloids, (+)-vallesamidine and (+)-14,15-dehydrostrempeliopine, were completed from a late-stage divergent intermediate. The synthesis took advantage of efficient nitro-group reactions with the A/B/C ring skeleton constructed concisely on a gram scale through an asymmetric Michael addition, nitro-Mannich/lactamisation, Tsuji-Trost allylation, and intramolecular C-N coupling reaction. Other key features of the synthesis are a novel [1,4] hydride transfer/Mannich-type cyclisation to build ring E and a diastereoselective ring-closing metathesis reaction to construct ring D. This approach gave access to a late-stage C14,C15 alkene divergent intermediate that could be simply transformed into (+)-vallesamidine, (+)-14,15-dehydrostrempeliopine, and potentially other schizozygine alkaloids and unnatural derivatives.
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Affiliation(s)
- Xiangyu Zhang
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - James C Anderson
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
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13
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14
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Hayashi N, Miura Y, Yokoshima S, Fukuyama T. Synthetic Studies of Isoschizogamine: Alternative Preparation of the Key Intermediate. Chem Pharm Bull (Tokyo) 2019; 67:64-70. [DOI: 10.1248/cpb.c18-00718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Yusuke Miura
- Graduate School of Pharmaceutical Sciences, University of Tokyo
| | | | - Tohru Fukuyama
- Graduate School of Pharmaceutical Sciences, Nagoya University
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15
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Kotha S, Meshram M, Dommaraju Y. Design and Synthesis of Polycycles, Heterocycles, and Macrocycles via Strategic Utilization of Ring-Closing Metathesis. CHEM REC 2018; 18:1613-1632. [PMID: 29920922 DOI: 10.1002/tcr.201800025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 05/18/2018] [Indexed: 02/04/2023]
Abstract
In this perspective, we summarize new synthetic approaches for the construction of various polycyclic compounds involving ring-closing metathesis as a key step. In this regard, we used ring-closing metathesis in combination with other popular reactions like Suzuki-Miyaura coupling, Claisen rearrangement, Fischer indolization, Grignard addition, Diels-Alder reaction, and [2+2] cycloaddition reaction etc. To this end, a variety of functional molecules such as α-amino acids, cyclophanes, heterocycles, propellanes, spirocycles, and macrocycles have been prepared. The strategies developed and the molecules prepared here play a key role in designing new materials and also act as lead compounds in drug design. The strategies and tactics developed here are useful to design polycycles, macrocycles, and heterocycles of diverse ring systems.
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-, 400 076, India
| | - Milind Meshram
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-, 400 076, India
| | - Yuvaraj Dommaraju
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-, 400 076, India
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16
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Sugiura M. Activation of Boron Compounds by O-Monoacyltartaric Acid Catalysts. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Yang B, Gao S. Recent advances in the application of Diels–Alder reactions involving o-quinodimethanes, aza-o-quinone methides and o-quinone methides in natural product total synthesis. Chem Soc Rev 2018; 47:7926-7953. [DOI: 10.1039/c8cs00274f] [Citation(s) in RCA: 240] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review summarizes recent advances in Diels–Alder reactions involving o-QDMs, o-QMs and aza-o-QMs. The power and potential of this strategy in organic synthesis and natural product total synthesis is highlighted.
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Affiliation(s)
- Baochao Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Shuanhu Gao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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18
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Almond-Thynne J, White AJP, Polyzos A, Rzepa HS, Parsons PJ, Barrett AGM. Synthesis and Reactions of Benzannulated Spiroaminals: Tetrahydrospirobiquinolines. ACS OMEGA 2017; 2:3241-3249. [PMID: 30023690 PMCID: PMC6044889 DOI: 10.1021/acsomega.7b00482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Accepted: 05/19/2017] [Indexed: 06/08/2023]
Abstract
An efficient two-step synthesis of symmetrical and unsymmetrical tetrahydrospirobiquinolines from o-azidobenzaldehydes is reported. A novel series of tetrahydrospirobiquinolines was prepared by sequential double-aldol condensation with acetone, cyclopentanone, and cyclohexanone to form the corresponding o,o'-diazido-dibenzylidene-acetone, -cyclopentanone, and -cyclohexanone derivatives, respectively, and hydrogenation-spirocyclization. The spirodiamines were further derivatized by electrophilic aromatic bromination, Suzuki coupling, and N-alkylation, all of which proceeded with preservation of the spirocyclic core.
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Affiliation(s)
| | - Andrew J. P. White
- Department
of Chemistry, Imperial College London, London SW7 2AZ, England
| | - Anastasios Polyzos
- CSIRO
Manufacturing, Clayton, Victoria 3169, Australia
- School
of Chemistry, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | - Henry S. Rzepa
- Department
of Chemistry, Imperial College London, London SW7 2AZ, England
| | - Philip J. Parsons
- Department
of Chemistry, Imperial College London, London SW7 2AZ, England
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19
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Han JC, Li CC. Ruthenium-Catalyzed Metathesis Cascade Reactions in Natural Products Synthesis. CHEM REC 2016; 17:499-517. [PMID: 27775863 DOI: 10.1002/tcr.201600110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 09/12/2016] [Indexed: 12/20/2022]
Abstract
In this account, we provide a brief summary of recent developments in ruthenium-catalyzed metathesis cascade reactions towards the total synthesis of natural products. We also highlight recent progress from our own laboratory regarding the synthesis of securinega alkaloids and humulanolides, which has resulted in the development of novel ruthenium-catalyzed metathesis cascade reactions. Inspired and guided by the pioneering and elegant research conducted in this area, we developed a regio-controlled relay dienyne metathesis cascade reaction and a cyclobutene-promoted RCM/ROM/RCM cascade reaction for the synthesis of securinega alkaloids and humulanolides, respectively.
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Affiliation(s)
- Jing-Chun Han
- Department of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, China
| | - Chuang-Chuang Li
- Department of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, China
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20
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Huang HM, Procter DJ. Radical–Radical Cyclization Cascades of Barbiturates Triggered by Electron-Transfer Reduction of Amide-Type Carbonyls. J Am Chem Soc 2016; 138:7770-5. [DOI: 10.1021/jacs.6b04086] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Huan-Ming Huang
- School of Chemistry, Oxford Road, University of Manchester, Manchester, M13 9PL, United Kingdom
| | - David J. Procter
- School of Chemistry, Oxford Road, University of Manchester, Manchester, M13 9PL, United Kingdom
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21
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Mailyan AK, Eickhoff JA, Minakova AS, Gu Z, Lu P, Zakarian A. Cutting-Edge and Time-Honored Strategies for Stereoselective Construction of C–N Bonds in Total Synthesis. Chem Rev 2016; 116:4441-557. [DOI: 10.1021/acs.chemrev.5b00712] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Artur K. Mailyan
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - John A. Eickhoff
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Anastasiia S. Minakova
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Zhenhua Gu
- Department
of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Ping Lu
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Armen Zakarian
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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22
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Reddy MV, Jeong YT. Copper(ii) oxide nanoparticles as a highly active and reusable heterogeneous catalyst for the construction of phenyl-1H-pyrazolo[3,4-b]pyridine derivatives under solvent-free conditions. RSC Adv 2016. [DOI: 10.1039/c6ra22445h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We developed a simple and efficient method for the one-pot synthesis of phenyl-1H-pyrazolo[3,4-b]pyridine derivatives in the presence of CuO NPs under solvent-free conditions with higher yields and shorter reaction times.
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Affiliation(s)
| | - Yeon Tae Jeong
- Department of Image Science and Engineering
- Pukyong National University
- Busan
- Korea
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23
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Naidu S, Reddy SR. Copper-catalyzed tandem reaction in ionic liquid: an efficient reusable catalyst and solvent media for the synthesis of fused poly hetero cyclic compounds. RSC Adv 2016. [DOI: 10.1039/c6ra13712a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Herein we report a copper catalyzed tandem reaction for the therapeutically important pyrrolo-/pyrido[2,1-b] benzo[d][1,3]oxazin-1-ones using 2-aminobezyl alcohols, green solvent medium, alkynoic acids, under ligand and base free conditions.
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Affiliation(s)
- Shivaji Naidu
- Department of Chemistry
- School of Advanced Sciences
- VIT University
- Vellore 632014
- India
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Kotha S, Meshram M, Khedkar P, Banerjee S, Deodhar D. Recent applications of ring-rearrangement metathesis in organic synthesis. Beilstein J Org Chem 2015; 11:1833-64. [PMID: 26664603 PMCID: PMC4660990 DOI: 10.3762/bjoc.11.199] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 09/17/2015] [Indexed: 11/23/2022] Open
Abstract
Ring-rearrangement metathesis (RRM) involves multiple metathesis processes such as ring-opening metathesis (ROM)/ring-closing metathesis (RCM) in a one-pot operation to generate complex targets. RRM delivers complex frameworks that are difficult to assemble by conventional methods. The noteworthy point about this type of protocol is multi-bond formation and it is an atom economic process. In this review, we have covered literature that appeared during the last seven years (2008–2014).
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400 076, India.
| | - Milind Meshram
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400 076, India.
| | - Priti Khedkar
- Department of Chemistry, Guru Nanak Khalsa College of Arts, Science & Commerce, Matunga, Mumbai-400 019, India
| | - Shaibal Banerjee
- Department of Applied Chemistry, Defence Institute of Advanced Technology (DU), Girinagar, Pune-411025, Pune, India
| | - Deepak Deodhar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400 076, India.
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Xu Z, Bao X, Wang Q, Zhu J. An Enantioselective Total Synthesis of (−)‐Isoschizogamine. Angew Chem Int Ed Engl 2015; 54:14937-40. [DOI: 10.1002/anie.201508150] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Zhengren Xu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL‐SB‐ISIC‐LSPN, BCH 5304, 1015 Lausanne (Switzerland) http://lspn.epfl.ch
| | - Xu Bao
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL‐SB‐ISIC‐LSPN, BCH 5304, 1015 Lausanne (Switzerland) http://lspn.epfl.ch
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL‐SB‐ISIC‐LSPN, BCH 5304, 1015 Lausanne (Switzerland) http://lspn.epfl.ch
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL‐SB‐ISIC‐LSPN, BCH 5304, 1015 Lausanne (Switzerland) http://lspn.epfl.ch
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Takada A, Fujiwara H, Sugimoto K, Ueda H, Tokuyama H. Total Synthesis of (−)‐Isoschizogamine. Chemistry 2015; 21:16400-3. [DOI: 10.1002/chem.201503606] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Akihiro Takada
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba 6‐3, Aramaki, Aoba‐ku, Sendai 980‐8578 (Japan), Fax: (+81) 22‐795‐6877
| | - Hiroaki Fujiwara
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba 6‐3, Aramaki, Aoba‐ku, Sendai 980‐8578 (Japan), Fax: (+81) 22‐795‐6877
| | - Kenji Sugimoto
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba 6‐3, Aramaki, Aoba‐ku, Sendai 980‐8578 (Japan), Fax: (+81) 22‐795‐6877
| | - Hirofumi Ueda
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba 6‐3, Aramaki, Aoba‐ku, Sendai 980‐8578 (Japan), Fax: (+81) 22‐795‐6877
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba 6‐3, Aramaki, Aoba‐ku, Sendai 980‐8578 (Japan), Fax: (+81) 22‐795‐6877
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Wang X, Xia D, Tan L, Chen H, Huang H, Song H, Qin Y. Total syntheses of (-)-isoschizogamine and (-)-2-hydroxyisoschizogamine. Chemistry 2015; 21:14602-7. [PMID: 26291890 DOI: 10.1002/chem.201502869] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Indexed: 11/08/2022]
Abstract
Total syntheses of (-)-isoschizogamine and (-)-2-hydroxyisoschizogamine are described. The synthesis employs two asymmetric Michael additions to establish chiral centers at C7 and the quaternary carbon C20. Regioselective reduction of the methylthioiminium cation rather than the enamine generates an isoschizogamine-type pentacyclic skeleton. Acidic hydrolysis of the isoschizogamine-type intermediate in the absence of oxygen provides natural (-)-isoschizogamine. Conducting the reaction in the presence of oxygen leads to a multistep oxidative hydrolysis cascade that affords unnatural (-)-2-hydroxyisoschizogamine.
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Affiliation(s)
- Xiaobei Wang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041 (P. R. China)
| | - Dongliang Xia
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041 (P. R. China)
| | - Ling Tan
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041 (P. R. China)
| | - Huan Chen
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041 (P. R. China)
| | - Hongxiu Huang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041 (P. R. China)
| | - Hao Song
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041 (P. R. China)
| | - Yong Qin
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041 (P. R. China).
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Jean M, Casanova B, Gnoatto S, van de Weghe P. Strategy of total synthesis based on the use of Rh-catalyzed stereoselective 1,4-addition. Org Biomol Chem 2015; 13:9168-75. [DOI: 10.1039/c5ob01402f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In 1998, Hayashi and Miyaura reported the first asymmetric conjugate addition of aryl- and alkenyl-boronic acids to α,β-unsaturated ketones using chiral rhodium complexes as catalysts.
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Affiliation(s)
- M. Jean
- Université de Rennes 1
- UMR CNRS 6226
- Institut des Sciences Chimiques de Rennes
- Equipe PNSCM
- UFR des Sciences Biologiques et Pharmaceutiques
| | - B. Casanova
- Université de Rennes 1
- UMR CNRS 6226
- Institut des Sciences Chimiques de Rennes
- Equipe PNSCM
- UFR des Sciences Biologiques et Pharmaceutiques
| | - S. Gnoatto
- Laboratório de Fitoquímica e Síntese Orgânica
- Faculdade de Farmácia
- Universidade Federal do Rio Grande do Sul (UFRGS)
- Porto Alegre 90610-000
- Brazil
| | - P. van de Weghe
- Université de Rennes 1
- UMR CNRS 6226
- Institut des Sciences Chimiques de Rennes
- Equipe PNSCM
- UFR des Sciences Biologiques et Pharmaceutiques
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Sugiura M, Kinoshita R, Nakajima M. O-Monoacyltartaric acid catalyzed enantioselective conjugate addition of a boronic acid to dienones: application to the synthesis of optically active cyclopentenones. Org Lett 2014; 16:5172-5. [PMID: 25248134 DOI: 10.1021/ol502526y] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Enantioselective conjugate addition of styrylboronic acid to dienones was effectively catalyzed by an O-monoacyltartaric acid to afford monostyrylated products with good enantioselectivity. The RCM of the monostyrylated products using the Hoveyda-Grubbs II catalyst afforded optically active cyclopentenones, including a synthetic intermediate of the antitumor agent TEI-9826. The study shows that a diene additive such as 1,6-heptadiene or diallyl ether was essential for the RCM.
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Affiliation(s)
- Masaharu Sugiura
- Graduate School of Pharmaceutical Sciences, Kumamoto University , 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2012. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.02.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Bakthadoss M, Kannan D. A novel synthesis of tetra and pentacyclic quinolinopyran tethered pyrazole/coumarin scaffolds via a solid state melt reaction. RSC Adv 2014. [DOI: 10.1039/c3ra46894a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Synthetic studies on isoschizogamine: construction of [3.3.1] bicyclic aminal core by using oxidative skeletal rearrangement. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.10.083] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Cordes J, Murray PRD, White AJP, Barrett AGM. 1,7-Diazaspiro[5.5]undecane – A Neglected Heterocycle. Org Lett 2013; 15:4992-5. [DOI: 10.1021/ol402301g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jens Cordes
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
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Xu Z, Wang Q, Zhu J. Palladium-Catalyzed Decarboxylative Vinylation of Potassium Nitrophenyl Acetate: Application to the Total Synthesis of (±)-Goniomitine. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209970] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Xu Z, Wang Q, Zhu J. Palladium-Catalyzed Decarboxylative Vinylation of Potassium Nitrophenyl Acetate: Application to the Total Synthesis of (±)-Goniomitine. Angew Chem Int Ed Engl 2013; 52:3272-6. [DOI: 10.1002/anie.201209970] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Indexed: 11/10/2022]
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Jha A, Naidu AB, Abdelkhalik AM. Transition metal-free one-pot cascade synthesis of 7-oxa-2-azatricyclo[7.4.0.02,6]trideca-1(9),10,12-trien-3-ones from biomass-derived levulinic acid under mild conditions. Org Biomol Chem 2013; 11:7559-65. [DOI: 10.1039/c3ob41826j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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