1
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Hatch CE, Chain WJ. Electrochemically Enabled Total Syntheses of Natural Products. ChemElectroChem 2023; 10:e202300140. [PMID: 38106361 PMCID: PMC10723087 DOI: 10.1002/celc.202300140] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Indexed: 12/19/2023]
Abstract
Electrochemical techniques have helped to enable the total synthesis of natural products since the pioneering work of Kolbe in the mid 1800's. The electrochemical toolset grows every day and these new possibilities change the way chemists look at and think about natural products. This review provides a perspective on total syntheses wherein electrochemical techniques enabled the carbon─carbon bond formations in the skeletal assembly of important natural products, discussion of mechanistic details, and representative examples of the bond formations enabled over the last several decades. These bond formations are often distinctly different from those possible with conventional chemistries and allow assemblies complementary to other techniques.
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Affiliation(s)
- Chad E Hatch
- Chemical Biology, Memorial Sloan Kettering Cancer Center, 417 E. 68 St., New York, NY, 10065 (United States)
| | - William J Chain
- Department of Chemistry & Biochemistry, University of Delaware, 163 The Green, Newark, DE, 19716 (United States)
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2
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Zhou NN, Ning SS, Li LQ, Zhang JY, Fan MJ, Yang DS, Zhu HT. Brønsted-acid-catalyzed one-pot tandem annulation/[5 + 2]-cycloaddition of o-propargyl alcohol benzaldehydes with alkynes: regioselective and stereoselective synthesis of dibenzo[a,f]azulen-12-ones. Org Chem Front 2020. [DOI: 10.1039/d0qo00522c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The one-pot synthesis of dibenzo[a,f]azulen-12-ones has been established starting from o-propargyl alcohol benzaldehydes and alkynes.
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Affiliation(s)
- Ni-Ni Zhou
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Si-Si Ning
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Lin-Qiang Li
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Jie-Yun Zhang
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Ming-Jin Fan
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - De-Suo Yang
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Hai-Tao Zhu
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
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3
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Yang J, Sun Q, Yoshikai N. Cobalt-Catalyzed Regio- and Diastereoselective Formal [3 + 2] Cycloaddition between Cyclopropanols and Allenes. ACS Catal 2019. [DOI: 10.1021/acscatal.8b05114] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Junfeng Yang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
| | - Qiao Sun
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
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4
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Hu YJ, Fan JH, Li S, Zhao J, Li CC. Synthetic Study toward the Total Synthesis of Taxezopidines A and B. Org Lett 2018; 20:5905-5909. [PMID: 30192554 DOI: 10.1021/acs.orglett.8b02571] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A concise synthetic approach to construct the [6,8,6]-tricyclic core of taxezopidines A and B, which contains a synthetically challenging bridged bicyclo[5.3.1]undecane ring system bearing most of the desired functionalized groups and stereocenters, has been established. This approach features a diastereoselective type II intramolecular Diels-Alder furan reaction. The stereochemistry of the acetoxy group at the allylic position of the dienophile alkene group, such as in 6a, was found to be critical for achieving the desired highly diastereoselective outcome.
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Affiliation(s)
- Ya-Jian Hu
- Institute of Chinese Medical Sciences , University of Macau , Macau 999078 , China.,Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Jian-Hong Fan
- Institute of Chinese Medical Sciences , University of Macau , Macau 999078 , China.,Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Shaoping Li
- Institute of Chinese Medical Sciences , University of Macau , Macau 999078 , China
| | - Jing Zhao
- Institute of Chinese Medical Sciences , University of Macau , Macau 999078 , China
| | - Chuang-Chuang Li
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen 518055 , China
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5
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Sun N, Xie X, Chen H, Liu Y. Gold-Catalyzed Cyclization of Furan-Ynes bearing a Propargyl Carbonate Group: Intramolecular Diels-Alder Reaction with In Situ Generated Allenes. Chemistry 2016; 22:14175-80. [PMID: 27535212 DOI: 10.1002/chem.201603055] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Indexed: 11/08/2022]
Abstract
Gold-catalyzed cyclization of various furan-ynes with a propargyl carbonate or ester moiety results in the formation of a series of polycyclic aromatic ring systems. The reactions can be rationalized through a tandem gold-catalyzed 3,3-rearrangement of the propargyl carboxylate moiety in furan-yne substrates to form an allenic intermediate, which is followed by an intramolecular Diels-Alder reaction of furan and subsequent ring-opening of the oxa-bridged cycloadduct. It was found that the steric and electronic properties of phosphine ligands on the gold catalyst had a significant impact on the reaction outcome. In the case of 1,5-furan-yne, the cleavage of the oxa-bridge in the cycloadduct with concomitant 1,2-migration of the R(1) group occurs to furnish anthracen-1(2H)-ones bearing a quaternary carbon center. For 1,4-furan-yne, a facile aromatization of the cycloadduct takes place to give 9-oxygenated anthracene derivatives.
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Affiliation(s)
- Ning Sun
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People's Republic of China), Fax: (+86) 021-64166128
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People's Republic of China), Fax: (+86) 021-64166128
| | - Haoyi Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People's Republic of China), Fax: (+86) 021-64166128
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People's Republic of China), Fax: (+86) 021-64166128.
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6
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7
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Mackay EG, Nörret M, Wong LSM, Louis I, Lawrence AL, Willis AC, Sherburn MS. A Domino Diels–Alder Approach toward the Tetracyclic Nicandrenone Framework. Org Lett 2015; 17:5517-9. [DOI: 10.1021/acs.orglett.5b02412] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Emily G. Mackay
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Marck Nörret
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Leon S.-M. Wong
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Ignace Louis
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Andrew L. Lawrence
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Anthony C. Willis
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Michael S. Sherburn
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
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8
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Marković D, Kolympadi M, Deguin B, Porée FH, Turks M. The isolation and synthesis of neodolastane diterpenoids. Nat Prod Rep 2015; 32:230-55. [DOI: 10.1039/c4np00077c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This account summarises the progress in isolation, characterisation and synthesis of diterpenoids sharing a tricyclic neodolastane skeleton as well as their biogenetic origin and diverse biological activities.
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Affiliation(s)
- Dean Marković
- Laboratoire de Pharmacognosie de Université Paris Descartes
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- U.M.R./C.N.R.S. 8638
- 75006 Paris
| | - Maria Kolympadi
- Department of Biotechnology
- University of Rijeka
- 51000 Rijeka
- Croatia
| | - Brigitte Deguin
- Laboratoire de Pharmacognosie de Université Paris Descartes
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- U.M.R./C.N.R.S. 8638
- 75006 Paris
| | - François-Hugues Porée
- Laboratoire de Pharmacognosie de Université Paris Descartes
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- U.M.R./C.N.R.S. 8638
- 75006 Paris
| | - Māris Turks
- Faculty of Material Science and Applied Chemistry
- Riga Technical University
- Riga LV-1007
- Latvia
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9
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Efficient Total Synthesis of Bioactive Natural Products: A Personal Record. CHEM REC 2014; 14:606-22. [DOI: 10.1002/tcr.201402015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Indexed: 11/07/2022]
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10
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Han JC, Liu LZ, Li CC, Yang Z. Asymmetric, Protecting-Group-Free Total Synthesis of (+)-Caribenol A. Chem Asian J 2013; 8:1972-5. [DOI: 10.1002/asia.201300441] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Revised: 04/24/2013] [Indexed: 11/06/2022]
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11
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Han JC, Liu LZ, Chang YY, Yue GZ, Guo J, Zhou LY, Li CC, Yang Z. Asymmetric total synthesis of caribenol A via an intramolecular Diels-Alder reaction. J Org Chem 2013; 78:5492-504. [PMID: 23672454 DOI: 10.1021/jo4006156] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A total synthesis of the caribenol A (1), a novel natural product with an intriguing tetracyclic framework, has been achieved. The synthesis features an intramolecular Diels-Alder (IMDA) reaction for the facile construction of the tricyclic [5-7-6] skeleton of caribenol A (1) and a biomimetic oxidation reaction for the formation of the 2-hydroxyfuran-2(5H)-one motif of caribenol A (1) as key steps. This synthetic approach also reveals that the sp(2) carbon at C(2) in substrate 8 is a critical factor for the formation of the tricyclic [5-7-6] skeleton in 7.
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Affiliation(s)
- Jing-Chun Han
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China 518055
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12
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Padwa A, Flick AC. Intramolecular Diels–Alder Cycloaddition of Furans (IMDAF) for Natural Product Synthesis. ADVANCES IN HETEROCYCLIC CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-408100-0.00001-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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13
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Williams DR, Pinchman JR. Studies of neodolastanes — Synthesis of the tricyclic core of the trichoaurantianolides. CAN J CHEM 2013. [DOI: 10.1139/v2012-088] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Studies toward the synthesis of trichoaurantianolide C (5) are described. Stille cross-coupling reactions of (E)- and (Z)-β-stannyl-α,β-unsaturated esters with allylic acetate 32 provide for the stereocontrolled formation of nonconjugated 2,5-diene-1-ols. Studies of the asymmetric Sharpless epoxidation are utilized to establish diastereofacial selectivity for the preparation of a crucial C2 tertiary allylic alcohol for subsequent esterification and ring-closing metathesis. SmI2 reductive cyclization of the key butenolide precursor 49 led to formation of the central seven-membered ring of the tricyclic core of the natural product.
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Affiliation(s)
- David R. Williams
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana, 47405-7102, USA
| | - Joseph R. Pinchman
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana, 47405-7102, USA
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14
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Gampe CM, Carreira EM. Cyclohexyne cycloinsertion in the divergent synthesis of guanacastepenes. Chemistry 2012; 18:15761-71. [PMID: 23080228 DOI: 10.1002/chem.201202222] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Indexed: 12/20/2022]
Abstract
The guanacastepenes are a family of 15 diterpenes that share a common 5-6-7 tricyclic core, which is decorated with quaternary centers, unsaturation, hydroxyl and carbonyl groups. Some of these natural products show interesting antimicrobial potency. Their collective structural and biological features have stirred up vibrant activity among organic chemists. Herein, we disclose an account of our studies toward the synthesis of a number of guanacastepenes. The synthetic strategy relies on the use of cyclohexyne in a cycloinsertion reaction to rapidly construct the guanacastepene core. Isolation of a cyclobutenol as intermediate in the cyclohexyne cycloinsertion provided us with the possibility to study further the reactivity of this metastable compound, and we uncovered novel rearrangements and ring-opening reactions. Stereoselective, late-stage oxidative diversification of the carbon scaffold allowed the synthesis of guanacastepenes N and O and paved the way for the synthesis of guanacastepenes H and D.
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15
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Read ML, Krapp A, Miranda PO, Gundersen LL. Synthesis of complex fused polycyclic heterocycles utilizing IMDAF reactions of allylamino- or allyloxy-furyl(hetero)arenes. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.12.079] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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16
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Naud S, Macnaughton SJ, Dyson BS, Woollaston DJ, Dallimore JWP, Robertson J. Conformational preferences of oxy-substituents in butenolide–tetrahydropyran spiroacetals and butenolide–piperidine spiro-N,O-acetals. Org Biomol Chem 2012; 10:3506-18. [DOI: 10.1039/c2ob06849d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Firoj Hossain M, Matcha K, Ghosh S. Synthetic studies toward nortriterpenoids of schisandraceae family. Approach to the construction of functionalized C/D and A/B ring units of micrandilactone C and rubrifloradilactone B. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.09.104] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Chen Y, Wang L, Liu Y, Li Y. Grignard Reagent Acceleration of the Intramolecular Diels-Alder Reaction of Furans with Unactivated Alkynes: Towards Structurally Complex Oxabicyclic Alkenes. Chemistry 2011; 17:12582-6. [DOI: 10.1002/chem.201102028] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Indexed: 11/08/2022]
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19
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Liu LZ, Han JC, Yue GZ, Li CC, Yang Z. Asymmetric Total Synthesis of Caribenol A. J Am Chem Soc 2010; 132:13608-9. [DOI: 10.1021/ja106585n] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lian-Zhu Liu
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education and Beijing National Laboratory for Molecular Science, College of Chemistry, Peking University, Beijing 100871, China
| | - Jin-Chun Han
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education and Beijing National Laboratory for Molecular Science, College of Chemistry, Peking University, Beijing 100871, China
| | - Guo-Zong Yue
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education and Beijing National Laboratory for Molecular Science, College of Chemistry, Peking University, Beijing 100871, China
| | - Chuang-Chuang Li
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education and Beijing National Laboratory for Molecular Science, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhen Yang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education and Beijing National Laboratory for Molecular Science, College of Chemistry, Peking University, Beijing 100871, China
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20
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Che C, Liu L, Gong J, Yang Y, Wang G, Quan J, Yang Z. Construction of All-Carbon Quaternary Center by R2AlCl−Mediated Ring-Opening Reaction of Oxacycles. Org Lett 2010; 12:488-91. [DOI: 10.1021/ol902685h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chao Che
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Peking University, Beijing 100871, China
| | - Lianzhu Liu
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Peking University, Beijing 100871, China
| | - Jianxian Gong
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Peking University, Beijing 100871, China
| | - Yunfang Yang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Peking University, Beijing 100871, China
| | - Guoxin Wang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Peking University, Beijing 100871, China
| | - Junmin Quan
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Peking University, Beijing 100871, China
| | - Zhen Yang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Peking University, Beijing 100871, China
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21
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Fang X, Tong X. Palladium-catalyzed cyclization of 1,6-enyne with 2-bromoarylaldehyde: domino sequence to [5-7-6] tricyclic ring systems. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2009.11.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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Tang F, Moeller KD. Anodic oxidations and polarity: exploring the chemistry of olefinic radical cations. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.09.028] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Schwartz BD, Denton JR, Lian Y, Davies HML, Williams CM. Asymmetric [4 + 3] cycloadditions between vinylcarbenoids and dienes: application to the total synthesis of the natural product (-)-5-epi-vibsanin E. J Am Chem Soc 2009; 131:8329-32. [PMID: 19445507 PMCID: PMC2717789 DOI: 10.1021/ja9019484] [Citation(s) in RCA: 134] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The total synthesis of (-)-5-epi-vibsanin E (2) has been achieved in 18 steps. The synthesis combines the rhodium-catalyzed [4 + 3] cycloaddition between a vinylcarbenoid and a diene to rapidly generate the tricyclic core with an effective end game strategy to introduce the remaining side-chains. The [4 + 3] cycloaddition occurs by a cyclopropanation to form a divinylcyclopropane followed by a Cope rearrangement to form a cycloheptadiene. The quaternary stereogenic center generated in the process can be obtained with high asymmetric induction when the reaction is catalyzed by the chiral dirhodium complex, Rh(2)(S-PTAD)(4).
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Affiliation(s)
- Brett D. Schwartz
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - Justin R. Denton
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, USA
| | - Yajing Lian
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, USA
| | - Huw M. L. Davies
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, USA
| | - Craig M. Williams
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
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Liu L, Gao Y, Che C, Wu N, Wang DZ, Li CC, Yang Z. A model study for the concise construction of the oxapentacyclic core of cortistatins through intramolecular Diels–Alder and oxidative dearomatization–cyclization reactions. Chem Commun (Camb) 2009:662-4. [DOI: 10.1039/b817376a] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Albert S, Soret A, Blanco L, Deloisy S. Soluble and polymer-supported 2- and 3-benzylated furans for the preparation of α,β-ethylenic carbonyl compounds. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.01.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Abstract
Convergent and efficient syntheses of the microbial natural products gymnoconjugatin A and B are reported and were based on a linchpin coupling strategy using a boron/tin hetero-bis-metallated butadiene system.
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Affiliation(s)
- Robert S Coleman
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210, USA.
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27
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Li CC, Wang CH, Liang B, Zhang XH, Deng LJ, Liang S, Chen JH, Wu YD, Yang Z. Synthetic Study of 1,3-Butadiene-Based IMDA Approach to Construct a [5−7−6] Tricyclic Core and Its Application to the Total Synthesis of C8-epi-Guanacastepene O. J Org Chem 2006; 71:6892-7. [PMID: 16930042 DOI: 10.1021/jo060996h] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient intramolecular Diels-Alder (IMDA) strategy for the construction of the [5-7-6] tricyclic core (18) of guanacastepenes has been developed from cis- and trans-1,3-butadiene-tethered 4-oxopent-2-ynoic acid ethyl esters 10 and 11. This method facilitates the synthesis of C8-epi-guanacastepene O (36) in a very efficient manner.
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Affiliation(s)
- Chuang-Chuang Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering , Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Shenzhen Graduate School, Peking University, Beijing 100871, China
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