251
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Emmerich A, Daniliuc CG, Studer A. Synthesis of Polymers Bearing a Chiral Backbone via Stereospecific Ionic Ring-Opening Polymerization of Chiral Donor-Acceptor Cyclopropanes. Macromol Rapid Commun 2021; 42:e2100030. [PMID: 33644943 DOI: 10.1002/marc.202100030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/17/2021] [Indexed: 11/10/2022]
Abstract
The stereospecific ionic ring-opening polymerization of various donor-acceptor cyclopropanes is reported. The chiral cyclopropane monomers are readily prepared with established methodology and stereospecific polymerization is best conducted with a catalytic amount of MgBr2 serving as a Lewis acid and as an initiator. Polymers with molecular masses of up to 7800 g mol-1 containing a stereocenter in every repeating unit are obtained and the substituents of the monomers can be readily varied to access a novel class of chiral polymers.
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Affiliation(s)
- Alexis Emmerich
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, Münster, 48149, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, Münster, 48149, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, Münster, 48149, Germany
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252
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Andreev IA, Ratmanova NK, Augustin AU, Ivanova OA, Levina II, Khrustalev VN, Werz DB, Trushkov IV. Protic Ionic Liquid as Reagent, Catalyst, and Solvent: 1‐Methylimidazolium Thiocyanate. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016593] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ivan A. Andreev
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology Samory Mashela 1 117997 Moscow Russian Federation
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences Leninsky pr. 47 119991 Moscow Russian Federation
| | - Nina K. Ratmanova
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology Samory Mashela 1 117997 Moscow Russian Federation
| | - André U. Augustin
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Olga A. Ivanova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences Leninsky pr. 47 119991 Moscow Russian Federation
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory 1–3 119991 Moscow Russian Federation
| | - Irina I. Levina
- Institute of Biochemical Physics Russian Academy of Sciences Kosygina 4 119334 Moscow Russian Federation
| | - Victor N. Khrustalev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences Leninsky pr. 47 119991 Moscow Russian Federation
- Faculty of Science RUDN University Miklukho-Maklaya 6 117198 Moscow Russian Federation
| | - Daniel B. Werz
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Igor V. Trushkov
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology Samory Mashela 1 117997 Moscow Russian Federation
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences Leninsky pr. 47 119991 Moscow Russian Federation
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253
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Chen C, Cheng W, Wang J, Chao T, Cheng M, Liu R. Gold‐Catalyzed [3+2]‐Annulations of α‐Aryl Diazoketones with the Tetrasubstituted Alkenes of Cyclopentadienes: High Stereoselectivity and Enantioselectivity. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012611] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ching‐Nung Chen
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Wei‐Min Cheng
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Jian‐Kai Wang
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Tzu‐Hsuan Chao
- Department of Chemistry National Cheng Kung University East District Tainan City Taiwan, ROC
| | - Mu‐Jeng Cheng
- Department of Chemistry National Cheng Kung University East District Tainan City Taiwan, ROC
| | - Rai‐Shung Liu
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
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254
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Ahlburg NL, Freese T, Kolb S, Mummel S, Schmidt A, Werz DB. Functionalization of Sydnones with Donor‐Acceptor Cyclopropanes, Cyclobutanes, and Michael Acceptors. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100070] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nils L. Ahlburg
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Tyll Freese
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Simon Kolb
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Sebastian Mummel
- Clausthal University of Technology Institute of Organic Chemistry Leibnizstraße 6 38678 Clausthal-Zellerfeld Germany
| | - Andreas Schmidt
- Clausthal University of Technology Institute of Organic Chemistry Leibnizstraße 6 38678 Clausthal-Zellerfeld Germany
| | - Daniel B. Werz
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
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255
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Kurose T, Tsukano C, Nanjo T, Takemoto Y. Total Synthesis of Lyconesidine B, a Lycopodium Alkaloid with an Oxygenated, Amine-Type Fawcettimine Core. Org Lett 2021; 23:676-681. [PMID: 33325708 DOI: 10.1021/acs.orglett.0c03816] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This report describes the total synthesis of the complex, oxygenated tetracyclic alkaloid, lyconesidine B. The key synthetic challenge involves diastereoselective generation of a decahydroquinoline ring with a quaternary carbon at the angular position via domino cyclopropanation, ring-opening, and reduction. Another crucial step is the domino ene-yne metathesis involving a quaternary ammonium ion, leading to the construction of a decahydroazaazulen framework.
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Affiliation(s)
- Tomohiro Kurose
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Chihiro Tsukano
- Graduate School of Agriculture, Kyoto University, Kitashirakawa oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takeshi Nanjo
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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256
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257
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Lu CJ, Chen YT, Wang H, Li YJ. Palladium-catalyzed dearomative allylation of indoles with cyclopropyl acetylenes: access to indolenine derivatives. Org Biomol Chem 2021; 19:635-644. [PMID: 33367392 DOI: 10.1039/d0ob02103b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A palladium-catalyzed redox-neutral allylic alkylation of indoles with cyclopropyl acetylenes has been disclosed. Various 1,3-diene indolenine framework bearing a quaternary stereocenter at the C3 position were synthesized straightforwardly in good to excellent yields with high regio- and stereoselectivities. The reaction could be further expanded to the dearomatization of naphthols to synthesize functionalized cyclohexadienones with 1,3-diene motifs. The reaction exhibited high atom economy and good functional group tolerance.
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Affiliation(s)
- Chuan-Jun Lu
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China. and College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Yu-Ting Chen
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Hong Wang
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Yu-Jin Li
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
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258
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Liu K, Yang J, Li X. Palladium-Catalyzed Diastereo- and Enantioselective [3 + 2] Cycloaddition of Vinylcyclopropanes with Azadienes: Efficient Access to Chiral Spirocycles. Org Lett 2021; 23:826-831. [DOI: 10.1021/acs.orglett.0c04062] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kai Liu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Jianfeng Yang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xiaoxun Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
- Suzhou Institute of Shandong University, NO. 388 Ruoshui Road, SIP, Suzhou, Jiangsu 215123, China
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259
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Dai SS, Yang L, Zhou L, Gao Y, Fang R, Kirillov AM, Yang L. DFT Quest of the Active Species of the Gallium-Mediated Coupling of Methylidenemalonates and Acetylenes. Inorg Chem 2021; 60:995-1006. [PMID: 33390011 DOI: 10.1021/acs.inorgchem.0c03113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, three different Ga-containing systems based on GaCl3, Ga2Cl6, or ionic [Ga(L)3][GaCl4]3 (L = methylidenemalonate) complex were screened to elucidate the mechanism, regioselectivity, chemoselectivity, and role of Ga mediator in the reaction between two types of acetylenes (phenylacetylene and but-1-yn-1-ylbenzene) and methylidenemalonates, i.e., the 1,2-zwitterionic precursors that are similar to intermediates derived from donor-acceptor cyclopropanes (DACs). Our DFT calculation results clearly show that the ionic gallium complex [Ga(L)3][GaCl4]3 represents the key mediator in the title reaction. After the formation of such a complex, the first reaction step is the nucleophilic addition of phenylacetylene or but-1-yn-1-ylbenzene to [Ga(L)3][GaCl4]3, generating an unstable vinyl cation intermediate. In the phenylacetylene system, this vinyl cation intermediate accepts a chlorine atom from [GaCl4]- to give E-configuration intermediate. Then, the above process occurs to other two ligands of the Ga(III) complex to furnish a final product. On the other hand, in the but-1-yn-1-ylbenzene system, the vinyl cation intermediate prefers to undergo Friedel-Crafts (F-C) alkylation to generate a five-membered ring intermediate. This process is repeated on the other two methylidenemalonate ligands, giving rise to a final cyclization product. The distortion/interaction analysis shows that in the nucleophilic addition step the distortion energy of the Ga complex part is the main factor that influences the activation energy. Furthermore, the global reactivity index (GRI) analysis indicates that the Ga-complex model has the highest electrophilicity index ω, thus leading to the lowest energy barrier among three Ga-based models. In addition, DFT results reveal that the regioselectivity (E-configuration preference) and chemoselectivity (chloration or F-C alkylation) are mainly controlled by the steric effect rather than the electronic effect. The main findings of the present work provide a new way to analyze and rationalize various Ga-mediated reactions, which might also be extrapolated to organic transformations undergoing in the presence of aluminum and indium complexes.
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Affiliation(s)
- Song-Shan Dai
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Lin Zhou
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - YuanYuan Gao
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.,College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Alexander M Kirillov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal.,Research Institute of Chemistry, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Lizi Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.,College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
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260
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Shao J, Luo Q, Bi H, Wang SR. Cooperation of Cis Vicinal Acceptors for Donor-Acceptor Cyclopropane Activation: TfOH-Promoted Ring-Opening/Aryl Shift Rearrangement to 3- and 5-Ylidenebutenolides. Org Lett 2021; 23:459-463. [PMID: 33399000 DOI: 10.1021/acs.orglett.0c03976] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A convenient route to 3- and 5-ylidenebutenolides from readily available cis-2-acylcyclopropane-1-carboxylates is described. Upon exposure to TfOH, synergistic activation of the vicinal acceptors in cis-2-acylcyclopropane-1-carboxylates generates highly strained bicyclic oxocarbenium ion intermediates, which undergo the ring-opening/aryl shift/deprotonation cascade process to form the 3- or 5-ylidenebutenolides depending on the acyl group. On the other hand, the corresponding trans isomers, from which it is difficult to form such oxocarbenium ions, are inactive under the same conditions.
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Affiliation(s)
- Jiru Shao
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China
| | - Qinyuan Luo
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China
| | - Hongyan Bi
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China
| | - Sunewang R Wang
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China.,Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, 3663 North Zhongshan Lu, Shanghai 200062, China
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261
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Chen C, Cheng W, Wang J, Chao T, Cheng M, Liu R. Gold‐Catalyzed [3+2]‐Annulations of α‐Aryl Diazoketones with the Tetrasubstituted Alkenes of Cyclopentadienes: High Stereoselectivity and Enantioselectivity. Angew Chem Int Ed Engl 2021; 60:4479-4484. [DOI: 10.1002/anie.202012611] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/18/2020] [Indexed: 01/14/2023]
Affiliation(s)
- Ching‐Nung Chen
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Wei‐Min Cheng
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Jian‐Kai Wang
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Tzu‐Hsuan Chao
- Department of Chemistry National Cheng Kung University East District Tainan City Taiwan, ROC
| | - Mu‐Jeng Cheng
- Department of Chemistry National Cheng Kung University East District Tainan City Taiwan, ROC
| | - Rai‐Shung Liu
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
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262
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Jiang Z, Niu SL, Zeng Q, Ouyang Q, Chen YC, Xiao Q. Selective Alkynylallylation of the C-C σ Bond of Cyclopropenes. Angew Chem Int Ed Engl 2021; 60:297-303. [PMID: 32909645 DOI: 10.1002/anie.202008886] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/12/2020] [Indexed: 01/04/2023]
Abstract
A Pd-catalyzed regio- and stereoselective alkynylallylation of a specific C-C σ bond in cyclopropenes, using allyl propiolates as both allylation and alkynylation reagents, has been achieved for the first time. By merging selective C(sp2 )-C(sp3 ) bond scission with conjunctive cross-couplings, this decarboxylative reorganization reaction features fascinating atom and step economy and provides an efficient approach to highly functionalized dienynes from readily available substrates. Without further optimization, gram-scale products can be easily obtained by such a simple, neutral, and low-cost catalytic system with high TONs. DFT calculations afford a rationale toward the formation of the products and indicate that the selective insertion of the double bond of cyclopropenes into the C-Pd bond of ambidentate Pd complex and the subsequent nonclassical β-C elimination promoted by 1,4-palladium migration are critical for the success of the reaction.
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Affiliation(s)
- Zeqi Jiang
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
| | - Sheng-Li Niu
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
| | - Qiang Zeng
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
| | - Qin Ouyang
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
| | - Ying-Chun Chen
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
| | - Qing Xiao
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
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263
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Qiu Y, Lu K, Wei B, Qian Z, He Z. P III-Mediated Intramolecular Cyclopropanation and Synthesis of Cyclopropa[ c]coumarins. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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264
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Nie G, Huang X, Wang Z, Pan D, Zhang J, Chi YR. Umpolung of donor–acceptor cyclopropanes via N-heterocyclic carbene organic catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo00826a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A carbene-catalyzed formal umpolung of donor–acceptor (D–A) cyclopropanes is disclosed with chiral spirocyclic lactones bearing multiple functional groups afforded with excellent enantio- and diastereoselectivities.
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Affiliation(s)
- Guihua Nie
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Xuan Huang
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Zhongyao Wang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Dingwu Pan
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Junmin Zhang
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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265
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Varshnaya RK, Singh P, Kaur N, Banerjee P. Cascade intramolecular rearrangement/cycloaddition of nitrocyclopropane carboxylates with alkynes/alkenes: access to uncommon bi(hetero)cyclic systems. Org Chem Front 2021. [DOI: 10.1039/d0qo01535k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A straightforward approach for the one-pot synthesis of fused bi(hetero)cyclic systems via cascade intramolecular rearrangement/cycloaddition reaction of nitrocyclopropane carboxylates with substituted alkynes/alkenes has been demonstrated.
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Affiliation(s)
| | - Priyanka Singh
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Navpreet Kaur
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Prabal Banerjee
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
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266
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Wang Y, Qiao Y, Lan Y, Wei D. Predicting the origin of selectivity in NHC-catalyzed ring opening of formylcyclopropane: a theoretical investigation. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01768j] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Using density functional theory, we investigated the origin of selectivity in the N-heterocyclic carbene (NHC)-catalyzed transformation of formylcyclopropane with an alkylidene oxindole.
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Affiliation(s)
- Yang Wang
- Department of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou
- P.R. China
| | - Yan Qiao
- Department of Pathophysiology
- School of Basic Medical Sciences
- Zhengzhou University
- Zhengzhou
- P.R. China
| | - Yu Lan
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- P.R. China
| | - Donghui Wei
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- P.R. China
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267
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Caillé J, Robiette R. Cycloaddition of cyclopropanes for the elaboration of medium-sized carbocycles. Org Biomol Chem 2021; 19:5702-5724. [PMID: 34114583 DOI: 10.1039/d1ob00838b] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The stereocontrolled formation of medium-sized carbocycles is a major goal in modern organic chemistry due to their widespread occurrence in natural products and pharmaceutically active ingredients. One approach consists in the use of cycloaddition reactions which notably results in high selectivities and atom-economy. To this end, cyclopropanes are ideal substrates since they can provide readily functionalized three- or five-carbon synthons. Herein we report advances made in cycloaddition reactions of cyclopropanes towards the synthesis of medium-sized carbocycles via transition metal catalysis or Lewis acid catalysis.
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Affiliation(s)
- Julien Caillé
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1 box L4.01.02, 1348 Louvain-la-Neuve, Belgium. and Institut de Chimie et des Matériaux Paris Est (ICMPE), UMR-CNRS 7182, Université Paris Est Créteil (UPEC), 2 Rue Henri Dunant, 94320 Thiais, France.
| | - Raphaël Robiette
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1 box L4.01.02, 1348 Louvain-la-Neuve, Belgium.
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268
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Li J, Cui M, Tian R, Duan Z, Mathey F. Cycloadditions of 1-iminylphosphirane complexes with allenes. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.05.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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269
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Li SS, Qin Q, Qi Z, Yang LM, Kang Y, Zhang XZ, Ma AJ, Peng JB. Synthesis of disubstituted γ-butyrolactones and spirocyclopropanes via a multicomponent reaction of aldehydes, Meldrum's acid and sulfoxonium ylides. Org Chem Front 2021. [DOI: 10.1039/d1qo00303h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An efficient synthesis of disubstituted γ-butyrolactones and spirocyclopropanes via multicomponent reaction of aldehydes, Meldrum's acid and sulfoxonium ylides has been developed.
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Affiliation(s)
- Shan-Shan Li
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- People's Republic of China
| | - Qi Qin
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- People's Republic of China
| | - Zhuang Qi
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- People's Republic of China
| | - Li-Miao Yang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- People's Republic of China
| | - Yun Kang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- People's Republic of China
| | - Xiang-Zhi Zhang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- People's Republic of China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- People's Republic of China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- People's Republic of China
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270
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Kushvaha SK, Francis M, Kumar J, Nag E, Ravichandran P, Roy S, Chandra Mondal K. Synthesis, oligomerization and catalytic studies of a redox-active Ni 4-cubane: a detailed mechanistic investigation. RSC Adv 2021; 11:22849-22858. [PMID: 35480420 PMCID: PMC9034354 DOI: 10.1039/d1ra03071j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/23/2021] [Indexed: 11/21/2022] Open
Abstract
A robust tetrameric nickel complex [Ni4((Oal−)2L-Me)4(s)4] (3) (s = solvent) with cubane-like Ni4O4 core topology was isolated as a light greenish-orange crystalline solid in excellent yield. The mechanism of formation of 3 involving the two chloride-containing precursors [Ni4((Oal−)2L-Me)4(s)4]·2MeOH (1) and [Ni4((O−)2L-Me)3((Oal−)(OH)L-Me)Cl] (2) was studied by ESI mass spectrometry and confirmed by the solid state isolation and single-crystal X-ray diffraction. The challenging ligand fields containing mono/di-anionic O2N donating atoms and/or chloride ions stabilized the pentacoordinate Ni(ii) ions in 1–2 upon controlling the experimental conditions. Complexes 1–3 have been characterized by NMR, UV-Vis and mass spectrometric analysis. Complex 3 was found to be redox active by cyclic voltammetry (CV) studies. Theoretical calculations were carried out to shed light on the effects of ligand fields on the stability of complexes 1–3. Complex 3 was found to be a potential catalyst for the diastereoselective cyclopropanation of heteroarenes with good to excellent yields. The ESI mass spectrometric analysis revealed the existence of solution dynamics and oligomerization of 3 in solution. Mechanistic investigation of the catalytic cycle revealed that complex 3 and its various oligomers bind to the diazoester employed, followed by dissociative insertion of the respective carbene moieties to the C2–C3 double bond of the involved aromatic heterocycle, leading to the diastereoselective cyclopropanation. A robust tetrameric nickel complex [Ni4((Oal−)2L-Me)4(s)4] (s = solvent) with cubane-like Ni4O4 core topology identified as the efficient catalyst for the diastereoselective cyclopropanation of aromatic heterocycles.![]()
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Affiliation(s)
| | - Maria Francis
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Tirupati 517507
- India
| | - Jayasree Kumar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Ekta Nag
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Tirupati 517507
- India
| | | | - Sudipta Roy
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Tirupati 517507
- India
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271
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Thangamani M, Srinivasan K. Scandium(III) Triflate-Catalyzed Reaction of Aroyl-Substituted Donor-Acceptor Cyclopropanes with 1-Naphthylamines: Access to Dibenzo[ c, h]acridines. J Org Chem 2021; 86:1172-1177. [PMID: 33236912 DOI: 10.1021/acs.joc.0c02105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The reaction of aroyl-substituted donor-acceptor (D-A) cyclopropanes with two equivalents of 1-naphthylamines in the presence of a catalytic amount of scandium(III) triflate provides access to dibenzo[c,h]acridines. The key steps of the transformation are the formation of nucleophilic ring-opening products from the D-A cyclopropanes and 1-naphthylamines and their subsequent fragmentation and cyclization. The method has a reasonable substrate scope, and the products are formed in 50-70% yields.
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Affiliation(s)
- Murugesan Thangamani
- School of Chemistry, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India
| | - Kannupal Srinivasan
- School of Chemistry, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India
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272
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Asahara H, Nishiwaki N, Kamidate R. Regiodivergent Ring Opening Reactions of 2-Arylated 3-Nitrocyclopropane-1,1-dicarboxylates Leading to Polyfunctionalized Dipoles. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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273
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Huang X, Wang R, Zhou C, Gao R, Zhang H, Zheng Y, Zhang X. Visible-light-induced, catalyst and additive-free cycloaddition of vinylcyclopropanes: access to sulfur-containing seven-membered heterocycles. Org Chem Front 2021. [DOI: 10.1039/d1qo01007g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The first visible-light-induced, catalyst and additive-free protocol for [5 + 2] cycloadditions of vinylcyclopropanes (VCPs) has been achieved.
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Affiliation(s)
- Xiaozhou Huang
- Fujian Key Laboratory of Polymer Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, 8 Shangsan Lu, Fuzhou 350007, China
| | - Rui Wang
- Fujian Key Laboratory of Polymer Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, 8 Shangsan Lu, Fuzhou 350007, China
| | - Cen Zhou
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Ocean College, Minjiang University, Fuzhou 350108, China
| | - Rong Gao
- Fujian Key Laboratory of Polymer Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, 8 Shangsan Lu, Fuzhou 350007, China
| | - Haowen Zhang
- Fujian Key Laboratory of Polymer Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, 8 Shangsan Lu, Fuzhou 350007, China
| | - Ying Zheng
- Fujian Key Laboratory of Polymer Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, 8 Shangsan Lu, Fuzhou 350007, China
| | - Xiao Zhang
- Fujian Key Laboratory of Polymer Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, 8 Shangsan Lu, Fuzhou 350007, China
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274
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Zhang J, Zhou P, Xiao D, Liu W. Research Progress of 1,3,5-Triazinanes in the Synthesis of Nitrogen-Containing Heterocycles. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202107023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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275
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Xia Y, Liu X, Feng X. Asymmetric Catalytic Reactions of Donor–Acceptor Cyclopropanes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006736] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yong Xia
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
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276
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Xia Y, Liu X, Feng X. Asymmetric Catalytic Reactions of Donor–Acceptor Cyclopropanes. Angew Chem Int Ed Engl 2020; 60:9192-9204. [DOI: 10.1002/anie.202006736] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 07/23/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Yong Xia
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
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277
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Fadeev AA, Chagarovskiy AO, Makarov AS, Levina II, Ivanova OA, Uchuskin MG, Trushkov IV. Synthesis of (Het)aryl 2-(2-hydroxyaryl)cyclopropyl Ketones. Molecules 2020; 25:molecules25235748. [PMID: 33291488 PMCID: PMC7729819 DOI: 10.3390/molecules25235748] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/02/2020] [Accepted: 12/04/2020] [Indexed: 11/16/2022] Open
Abstract
A simple general method for the synthesis of 1-acyl-2-(ortho-hydroxyaryl)cyclopropanes, which belong to the donor–acceptor cyclopropane family, has been developed. This method, based on the Corey–Chaykovsky cyclopropanation of 2-hydroxychalcones, allows for the preparation of a large diversity of hydroxy-substituted cyclopropanes, which can serve as promising building blocks for the synthesis of various bioactive compounds.
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Affiliation(s)
- Alexander A. Fadeev
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, 12800 Prague 2, Czech Republic;
- Department of Chemistry, Perm State University, Bukireva 15, Perm 614990, Russia;
| | - Alexey O. Chagarovskiy
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, Moscow 119991, Russia; (A.O.C.); (O.A.I.)
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Samory Mashela 1, Moscow 117997, Russia
| | - Anton S. Makarov
- Department of Chemistry, Perm State University, Bukireva 15, Perm 614990, Russia;
| | - Irina I. Levina
- N. M. Emanuel Institute of Biochemical Physcis Russian Academy of Sciences, Kosygina 4, Moscow 117198, Russia;
| | - Olga A. Ivanova
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, Moscow 119991, Russia; (A.O.C.); (O.A.I.)
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia
| | - Maxim G. Uchuskin
- Department of Chemistry, Perm State University, Bukireva 15, Perm 614990, Russia;
- Correspondence: (M.G.U.); (I.V.T.); Tel.: +7-916-645-9951 (I.V.T.)
| | - Igor V. Trushkov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, Moscow 119991, Russia; (A.O.C.); (O.A.I.)
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Samory Mashela 1, Moscow 117997, Russia
- Correspondence: (M.G.U.); (I.V.T.); Tel.: +7-916-645-9951 (I.V.T.)
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278
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Huang W, Meng F. Cobalt‐Catalyzed Diastereo‐ and Enantioselective Hydroalkylation of Cyclopropenes with Cobalt Homoenolates. Angew Chem Int Ed Engl 2020; 60:2694-2698. [DOI: 10.1002/anie.202012122] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Indexed: 12/27/2022]
Affiliation(s)
- Wei Huang
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Fanke Meng
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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279
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Huang W, Meng F. Cobalt‐Catalyzed Diastereo‐ and Enantioselective Hydroalkylation of Cyclopropenes with Cobalt Homoenolates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012122] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Wei Huang
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Fanke Meng
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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280
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Potapov KV, Denisov DA, Glushkova VV, Novikov RA, Tomilov YV. Donor-Acceptor Bicyclopropyls as 1,6-Zwitterionic Intermediates: Synthesis and Reactions with 4-Phenyl-1,2,4-triazoline-3,5-dione and Terminal Acetylenes. J Org Chem 2020; 85:15562-15576. [PMID: 33175521 DOI: 10.1021/acs.joc.0c02293] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The bicyclopropyl system activated by incorporation of donor and acceptor groups in the presence of Lewis acids was used as a synthetic equivalent of 1,6-zwitterions. Opening of both cyclopropane rings in 2'-aryl-1,1'-bicyclopropyl-2,2-dicarboxylates (D-A bicyclopropyl, ABCDs) in the presence of GaI3 + Bu4N+GaI4- results in 5-iodo-5-arylpent-2-enylmalonates as products of HI formal 1,6-addition to the bicyclopropyl system. The use of GaCl3 or GaBr3 as a Lewis acid and terminal aryl or alkyl acetylenes as 1,6-zwitterion interceptors allows the alkyl substituent to be grown to give the corresponding acyclic 7-chloro(bromo)-hepta-2,6-dienylmalonates. The reaction of ABCDs with 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD) catalyzed by Yb(OTf)3 also results in the opening of both cyclopropane rings. The reaction products are tetrahydropyridazine derivatives - (7,9-dioxo-1,6,8-triazabicyclo[4.3.0]non-3-en-2-ylmethyl)malonates - containing one more PTAD moiety in the malonyl group.
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Affiliation(s)
- Konstantin V Potapov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
| | - Dmitry A Denisov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
| | - Valeriia V Glushkova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
| | - Roman A Novikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
| | - Yury V Tomilov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
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281
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Wang MM, Jeon S, Waser J. Synthesis of Thiochromans via [3+3] Annulation of Aminocyclopropanes with Thiophenols. Org Lett 2020; 22:9123-9127. [DOI: 10.1021/acs.orglett.0c03528] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ming-Ming Wang
- Laboratory of Catalysis and Organic Synthesis, Institut des Sciences et Ingénierie Chimique, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Seongmin Jeon
- Laboratory of Catalysis and Organic Synthesis, Institut des Sciences et Ingénierie Chimique, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Jérôme Waser
- Laboratory of Catalysis and Organic Synthesis, Institut des Sciences et Ingénierie Chimique, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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282
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Jiang Z, Niu S, Zeng Q, Ouyang Q, Chen Y, Xiao Q. Selective Alkynylallylation of the C−C σ Bond of Cyclopropenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008886] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zeqi Jiang
- School of Pharmacy Third Military Medical University Gao Tanyan Avenue Chongqing 400038 China
| | - Sheng‐Li Niu
- School of Pharmacy Third Military Medical University Gao Tanyan Avenue Chongqing 400038 China
| | - Qiang Zeng
- School of Pharmacy Third Military Medical University Gao Tanyan Avenue Chongqing 400038 China
| | - Qin Ouyang
- School of Pharmacy Third Military Medical University Gao Tanyan Avenue Chongqing 400038 China
| | - Ying‐Chun Chen
- School of Pharmacy Third Military Medical University Gao Tanyan Avenue Chongqing 400038 China
| | - Qing Xiao
- School of Pharmacy Third Military Medical University Gao Tanyan Avenue Chongqing 400038 China
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283
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Chinnabattigalla S, Dakoju RK, Gedu S. Recent advances on the synthesis of flavans, isoflavans, and neoflavans. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4176] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Ravi Kishore Dakoju
- Department of Chemistry Indian Institute of Technology Hyderabad Sangareddy Telangana India
| | - Satyanarayana Gedu
- Department of Chemistry Indian Institute of Technology Hyderabad Sangareddy Telangana India
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284
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Abstract
Three- and four-membered rings, widespread motifs in nature and medicinal chemistry, have fascinated chemists ever since their discovery. However, due to energetic considerations, small rings are often difficult to assemble. In this regard, homogeneous gold catalysis has emerged as a powerful tool to construct these highly strained carbocycles. This review aims to provide a comprehensive summary of all the major advances and discoveries made in the gold-catalyzed synthesis of cyclopropanes, cyclopropenes, cyclobutanes, cyclobutenes, and their corresponding heterocyclic or heterosubstituted analogs.
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Affiliation(s)
- Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Allegra Franchino
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Cristina Garcı A-Morales
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
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285
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Sun JC, Wang XH, Ji CB, Peng YY, Zeng XP. Enantioselective Construction of Chiral Cyclopropa[ c]coumarins via Lewis Base-Catalyzed Cyclopropanation. J Org Chem 2020; 85:14963-14970. [PMID: 33136397 DOI: 10.1021/acs.joc.0c01782] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The first highly enantioselective construction of chiral cyclopropa[c]coumarins was described. Using commercially available (bis)cinchona alkaloid (DHQ)2PYR as the chiral Lewis base catalyst, together with Cs2CO3 as the achiral base, the reaction of a series of coumarin-3-carboxylate and 3-benzoyl coumarins with tert-butyl 2-bromoacetate could give rise to the corresponding cyclopropa[c]coumarins bearing three continuous chiral stereocenters in 83-93% ee and 90-97% ee, respectively. The reaction is proposed to proceed via an in situ generated ammonium ylide intermediate.
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Affiliation(s)
- Jun-Chao Sun
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and Jiangxi Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Xiao-Hui Wang
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and Jiangxi Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Cong-Bin Ji
- Jiangxi Provincial Research of Targeting Pharmaceutical Engineering Technology, Shangrao Normal University, Shangrao, Jiangxi 334001, China
| | - Yi-Yuan Peng
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and Jiangxi Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Xing-Ping Zeng
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and Jiangxi Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
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286
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Zhang D, Cai H, Chen Y, Yin L, Zhong J, Zhang Y, Zhang QF. Ring Opening of Donor-Acceptor Cyclopropanes with Acyclic 1,3-Diketones for the Synthesis of 1,6-Dicarbonyl Compounds. J Org Chem 2020; 85:14262-14270. [PMID: 33115228 DOI: 10.1021/acs.joc.0c02290] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
1,6-Dicarbonyl compounds, representing the formal addition products of the α-position of acetophenone derivatives to donor-acceptor cyclopropanes, were synthesized in two steps via first ring opening of donor-acceptor cyclopropanes with acyclic 1,3-diketones followed by DBU catalyzed retro-Claisen-type C-C bond cleavage reactions. In the first step, acyclic 1,3-diketones selectively worked as C-nucleophiles to add to donor-acceptor cyclopropanes. In the second step, the alkyl ketone part of the ring-opening products resulting from unsymmetrical 1,3-diketones was selectively cleaved in the presence of DBU in methanol.
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Affiliation(s)
- Dongxin Zhang
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, No. 59 Hudong Road, Ma'anshan, Anhui 243002, China
| | - Hu Cai
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, No. 59 Hudong Road, Ma'anshan, Anhui 243002, China
| | - Yan Chen
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, No. 59 Hudong Road, Ma'anshan, Anhui 243002, China
| | - Lei Yin
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, No. 59 Hudong Road, Ma'anshan, Anhui 243002, China
| | - Junchao Zhong
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, No. 59 Hudong Road, Ma'anshan, Anhui 243002, China
| | - Ying Zhang
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, No. 59 Hudong Road, Ma'anshan, Anhui 243002, China
| | - Qian-Feng Zhang
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, No. 59 Hudong Road, Ma'anshan, Anhui 243002, China
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287
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Jacob A, Jones PG, Werz DB. (3 + 2)-Cycloaddition of Donor–Acceptor Cyclopropanes with Selenocyanate: Synthesis of Dihydroselenophenes and Selenophenes. Org Lett 2020; 22:8720-8724. [DOI: 10.1021/acs.orglett.0c03329] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Anu Jacob
- Technische Universität Braunschweig, Institute of Organic Chemistry, Hagenring 30, 38106 Braunschweig, Germany
| | - Peter G. Jones
- Institute of Inorganic and Analytical Chemistry, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Daniel B. Werz
- Technische Universität Braunschweig, Institute of Organic Chemistry, Hagenring 30, 38106 Braunschweig, Germany
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288
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Wu YH, Zhang LY, Wang NX, Xing Y. Recent advances in the rare-earth metal triflates-catalyzed organic reactions. CATALYSIS REVIEWS 2020. [DOI: 10.1080/01614940.2020.1831758] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yue-Hua Wu
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
| | - Lei-Yang Zhang
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
| | - Nai-Xing Wang
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
| | - Yalan Xing
- Department of Chemistry, William Paterson University of New Jersey, New Jersey, United States
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289
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Sun X, Gu P, Qin J, Su Y. Rhodium-catalysed diastereo- and enantio-selective cyclopropanation of α-boryl styrenes. Chem Commun (Camb) 2020; 56:12379-12382. [PMID: 32930681 DOI: 10.1039/d0cc02549f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A rhodium-catalyzed diastereo- and enantio-selective cyclopropanation of α-boryl styrenes with α-diazoarylacetates was established. Rh2(S-PTTL)4 (0.2 mol%) was found to be effective for the conversion, and 21 diastereopure cyclopropylboronates were prepared in high yields with excellent enantioselectivity (ee up to 99%).
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Affiliation(s)
- Xiao Sun
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China.
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290
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Zhou L, Yan W, Sun X, Wang L, Tang Y. A Versatile Enantioselective Catalytic Cyclopropanation‐Rearrangement Approach to the Divergent Construction of Chiral Spiroaminals and Fused Bicyclic Acetals. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Li Zhou
- The State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, CAS University of Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Wen‐Guang Yan
- The State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, CAS University of Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Xiu‐Li Sun
- The State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, CAS University of Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Lijia Wang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Department of Chemistry East China Normal University 3663 North Zhongshan Road Shanghai 200062 China
| | - Yong Tang
- The State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, CAS University of Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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291
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Zheng Z, Cheng W, Wang L, Zhu J, Sun X, Tang Y. Asymmetric Catalytic [3+2] Annulation of
Donor‐Acceptor
Cyclopropane with Cyclic Ketones: Facile Access to Enantioenriched
1‐Oxaspiro
[4.5]decanes
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000277] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zhong‐Bo Zheng
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, University of Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Wen‐Fu Cheng
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Department of Chemistry, East China Normal University 3663 North Zhongshan Road Shanghai 200062 China
| | - Lijia Wang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Department of Chemistry, East China Normal University 3663 North Zhongshan Road Shanghai 200062 China
| | - Jun Zhu
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, University of Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Xiu‐Li Sun
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, University of Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Yong Tang
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, University of Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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292
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Sonnleitner CM, Park S, Eckl R, Ertl T, Reiser O. Stereoselective Synthesis of Tropanes via a 6π-Electrocyclic Ring-Opening/ Huisgen [3+2]-Cycloaddition Cascade of Monocyclopropanated Heterocycles. Angew Chem Int Ed Engl 2020; 59:18110-18115. [PMID: 32627302 PMCID: PMC7589232 DOI: 10.1002/anie.202006030] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Indexed: 12/18/2022]
Abstract
The synthesis of tropanes via a microwave-assisted, stereoselective 6π-electrocyclic ring-opening/ Huisgen [3+2]-cycloaddition cascade of cyclopropanated pyrrole and furan derivatives with electron-deficient dipolarophiles is demonstrated. Starting from furans or pyrroles, 8-aza- and 8-oxabicyclo[3.2.1]octanes are accessible in two steps in dia- and enantioselective pure form, being versatile building blocks for the synthesis of pharmaceutically relevant targets, especially for new cocaine analogues bearing various substituents at the C-6/C-7 positions of the tropane ring system. Moreover, the 2-azabicyclo[2.2.2]octane core (isoquinuclidines), being prominently represented in many natural and pharmaceutical products, is accessible via this approach.
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Affiliation(s)
- Carina M. Sonnleitner
- Institut für Organische ChemieUniversität RegensburgUniversitätsstrasse 3193053RegensburgGermany
| | - Saerom Park
- Institut für Organische ChemieUniversität RegensburgUniversitätsstrasse 3193053RegensburgGermany
| | - Robert Eckl
- Institut für Organische ChemieUniversität RegensburgUniversitätsstrasse 3193053RegensburgGermany
| | - Thomas Ertl
- Institut für Organische ChemieUniversität RegensburgUniversitätsstrasse 3193053RegensburgGermany
| | - Oliver Reiser
- Institut für Organische ChemieUniversität RegensburgUniversitätsstrasse 3193053RegensburgGermany
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293
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Sonnleitner CM, Park S, Eckl R, Ertl T, Reiser O. Stereoselektive Synthese von Tropanen über eine 6π‐elektrocyclische Ringöffnung/ Huisgen‐[3+2]‐Cycloadditionskaskade von monocyclopropanierten Heterocyclen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Carina M. Sonnleitner
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Deutschland
| | - Saerom Park
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Deutschland
| | - Robert Eckl
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Deutschland
| | - Thomas Ertl
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Deutschland
| | - Oliver Reiser
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Deutschland
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294
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Xu C, Wei N, Zhu D, Wang M. Cyclopentene Synthesis by a Catalytic [3+2] Annulation of Donor‐Acceptor Cyclopropanes with Polarized Alkenes. ChemistrySelect 2020. [DOI: 10.1002/slct.202002967] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry Northeast Normal University 5268 Renmin Street Changchun, 130024 China
| | - Na Wei
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry Northeast Normal University 5268 Renmin Street Changchun, 130024 China
| | - Dongsheng Zhu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry Northeast Normal University 5268 Renmin Street Changchun, 130024 China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry Northeast Normal University 5268 Renmin Street Changchun, 130024 China
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295
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Mancinelli JP, Wilkerson-Hill SM. Tris(pentafluorophenyl)borane-Catalyzed Cyclopropanation of Styrenes with Aryldiazoacetates. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03218] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Joseph P. Mancinelli
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Sidney M. Wilkerson-Hill
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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296
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Romanov AR, Mareev AV, Popov AV, Zinchenko SV. One-Pot Synthesis of Diethyl 2-Aryl-3-(trifluoroacetyl)-cyclopropane-1,1-dicarboxylates. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020090122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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297
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Xu Z, Zong Y, Qiao Y, Zhang J, Liu X, Zhu M, Xu Y, Zheng H, Fang L, Wang X, Lou H. Divergent Total Synthesis of Euphoranginol C, Euphoranginone D,
ent
‐Trachyloban‐3β‐ol,
ent
‐Trachyloban‐3‐one, Excoecarin E, and
ent
‐16α‐Hydroxy‐atisane‐3‐one. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009128] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ze‐Jun Xu
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Yan Zong
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Ya‐Nan Qiao
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Jiao‐Zhen Zhang
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Xuyuan Liu
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Ming‐Zhu Zhu
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Yuliang Xu
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Hongbo Zheng
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Liyuan Fang
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Xiao‐ning Wang
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Hong‐Xiang Lou
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
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298
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Xu Z, Zong Y, Qiao Y, Zhang J, Liu X, Zhu M, Xu Y, Zheng H, Fang L, Wang X, Lou H. Divergent Total Synthesis of Euphoranginol C, Euphoranginone D,
ent
‐Trachyloban‐3β‐ol,
ent
‐Trachyloban‐3‐one, Excoecarin E, and
ent
‐16α‐Hydroxy‐atisane‐3‐one. Angew Chem Int Ed Engl 2020; 59:19919-19923. [PMID: 32696611 DOI: 10.1002/anie.202009128] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Ze‐Jun Xu
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Yan Zong
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Ya‐Nan Qiao
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Jiao‐Zhen Zhang
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Xuyuan Liu
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Ming‐Zhu Zhu
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Yuliang Xu
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Hongbo Zheng
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Liyuan Fang
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Xiao‐ning Wang
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Hong‐Xiang Lou
- Department of Natural Products Chemistry Key Lab of Chemical Biology (MOE) School of Pharmaceutical Sciences Shandong University No. 44 West Wenhua Road Jinan 250012 P. R. China
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299
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De N, Ko D, Baek SY, Oh C, Kim J, Baik MH, Yoo EJ. Cu(I)-Catalyzed Enantioselective [5 + 1] Cycloaddition of N-Aromatic Compounds and Alkynes via Chelating-Assisted 1,2-Dearomative Addition. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03014] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nirupam De
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Donguk Ko
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Seung-yeol Baek
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) and Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Changjin Oh
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) and Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Jiyoung Kim
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) and Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Eun Jeong Yoo
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea
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300
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Munakala A, Gollapelli KK, Nanubolu JB, Chegondi R. Silver(I)-Catalyzed Oxidative Intramolecular Cyclopropanation: Access to Complex Tricyclo[3.3.1.0]nonanediones via Semipinacol-Type Rearrangement. Org Lett 2020; 22:7019-7024. [DOI: 10.1021/acs.orglett.0c02555] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Anandarao Munakala
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | | | | | - Rambabu Chegondi
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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