1
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Liang RX, Ding C, Cai HJ, Wang JY, Li QC, Yu GY, Jia YX. Pd-Catalyzed Enantioselective Desymmetrizing 1,7-Enyne Cycloisomerization of Alkyne-Tethered Cyclopentenes. Org Lett 2024; 26:4400-4405. [PMID: 38735050 DOI: 10.1021/acs.orglett.4c01507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
An enantioselective Pd-catalyzed intramolecular desymmetrizing cycloisomerization of N-(cyclopent-3-en-1-yl)propiolamides has been developed by employing a new chiral phosphoramidite ligand. A series of structurally unique bridged azabicycles are achieved in moderate to excellent yields with good E/Z selectivity and high enantioselectivity. Synthetic transformations are conducted to demonstrate the practical utility of this reaction.
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Affiliation(s)
- Ren-Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Chao Ding
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Hu-Jie Cai
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Jia-Yi Wang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Qi-Chuang Li
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Gao-Yang Yu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Yi-Xia Jia
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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2
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Li Q, Li J, Zhang J, Wu S, Zhang Y, Lin A, Yao H. Enantioselective Synthesis of Bicyclo[3.2.1]octadienes via Palladium-Catalyzed Intramolecular Alkene-Alkyne Coupling Reaction. Angew Chem Int Ed Engl 2023:e202313404. [PMID: 37921257 DOI: 10.1002/anie.202313404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 11/04/2023]
Abstract
Bicyclo[3.2.1]octadiene compounds and derivatives exist in a number of natural products and bioactive compounds. Nevertheless, catalytic enantioselective protocols for the synthesis of these skeletons have not been disclosed. Herein we reported a palladium-catalyzed asymmetric intramolecular alkene-alkyne coupling of alkyne-tethered cyclopentenes, affording a library of enantionenriched bicyclo[3.2.1]octadienes in excellent yields and enantioselectivities (mostly >99 % ee). Moreover, the products could undergo an unusual iodination-induced 1,2-acyl migration, forming iodinated bicyclo[3.2.1]octadienes with three vicinal stereocenters. The enone and isolated olefin motifs embedded in the products provide useful handles for downstream elaboration.
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Affiliation(s)
- Qiuyu Li
- State Key Laboratory of Natural Medicines (SKLNM), Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Jiajia Li
- State Key Laboratory of Natural Medicines (SKLNM), Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Jie Zhang
- State Key Laboratory of Natural Medicines (SKLNM), Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Shu Wu
- State Key Laboratory of Natural Medicines (SKLNM), Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Yu Zhang
- State Key Laboratory of Natural Medicines (SKLNM), Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM), Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines (SKLNM), Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
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3
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Wani MM, Rashid A, Bhat BA. A micelle-mediated approach enables facile access to bridged oxabicyclo[ n.3.1]alkene scaffolds. Org Biomol Chem 2023; 21:6151-6159. [PMID: 37462511 DOI: 10.1039/d3ob00918a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Oxabicyclo[n.3.1]alkene scaffolds present in a diverse range of complex natural products have been accessed by reacting 2-cycloalkenones with 1,3-cycloalkadiones in a micellar medium. This reaction occurring in a micellar confinement environment operates through a Michael addition/enolization/oxygen addition cascade to furnish highly functionalized constructs using a sustainable organic synthesis protocol. NMR analysis confirms that the locus of the solubilizates is within the palisade and stern regions of the micellar cavity.
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Affiliation(s)
- Mohmad Muzafar Wani
- CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar-190005, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Auqib Rashid
- CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar-190005, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Bilal A Bhat
- CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar-190005, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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4
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Morja MI, Chikhalia KH. Palladium(0)-catalyzed aryne annulation: a powerful strategy for the synthesis of thio-bridged compounds. Mol Divers 2023; 27:299-311. [PMID: 35451702 DOI: 10.1007/s11030-022-10424-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 03/23/2022] [Indexed: 02/08/2023]
Abstract
A method for the construction of various thio-bridged compounds is developed using readily available o-(trimethylsilyl)aryl triflates as a source of aryne precursor, catalyzed by simple Pd(dba)2/dppe complex. This operationally simple and modular protocol allows thio-bridged compound via C(sp2)-C(sp2) and C(sp2)-C(sp3) bond formation in promising yields with a broad substrate scope. The key part is in situ generation of an aryne from o-(trimethylsilyl)aryl triflates and their subsequent intermolecular annulation.
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Affiliation(s)
- Mayur I Morja
- Department of Chemistry, Government Science College, Vankal, Surat, Gujarat, 394350, India
| | - Kishor H Chikhalia
- Department of Chemistry, Veer Narmad South Gujarat University, Surat, Gujarat, 395007, India.
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5
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[3+3] Cycloadditions of Azomethine Ylides with Nitrile Imines for the Synthesis of 2,3,4,5‐Tetrahydro‐1,2,4‐Triazine‐5‐Carboxylates. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Synthesis of Substituted Tropones and Advancement for the Construction of Structurally Significant Skeletons. ChemistrySelect 2022. [DOI: 10.1002/slct.202200440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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Wei C, Zhou Z, Pang GL, Liang C, Mo DL. Cinchonidine-Catalyzed Synthesis of Oxazabicyclo[4.2.1]nonanones from N-Aryl- α,β-unsaturated Nitrones and 1-Ethynylnaphthalen-2-ols. Org Lett 2022; 24:4104-4108. [PMID: 35658450 DOI: 10.1021/acs.orglett.2c01049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A variety of oxazabicyclo[4.2.1]nonanone derivatives were prepared in good yields through a cinchonidine-catalyzed cascade reaction of N-aryl-α,β-unsaturated nitrones and 1-ethynylnaphthalen-2-ols. Mechanistic studies show that the reaction undergoes a [4 + 3] cycloaddition of nitrones to vinylidene o-quinone methide generated in situ from 1-ethynylnaphthalen-2-ols in the presence of cinchonidine, 1,3-rearrangement of N-O vinyl moieties, ring-opening, and finally double intramolecular cyclizations to afford oxazabicyclo[4.2.1]nonanones over five steps in a one-pot reaction.
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Affiliation(s)
- Cui Wei
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Zhou Zhou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Guang-Li Pang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Cui Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Dong-Liang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
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8
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Xing S, Wang Y, Jin C, Shi S, Zhang Y, Liao Z, Wang K, Zhu B. Construction of Bridged Aza- and Oxa-[ n.2.1] Skeletons via an Intramolecular Formal [3+2] Cycloaddition of Aziridines and Epoxides with Electron-Deficient Alkenes. J Org Chem 2022; 87:6426-6431. [PMID: 35439001 DOI: 10.1021/acs.joc.2c00287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An intramolecular formal [3+2] cycloaddition of activated aziridines and epoxides with electron-deficient alkene has been developed for the general and efficient construction of bridged aza- and oxa-[n.2.1] (n = 3 or 4) skeletons. This strategy can be efficiently promoted by lithium iodide. To demonstrate its potential, the intramolecular formal [3+2] cycloaddition was used to access the important intermediate of homoepiboxidine.
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Affiliation(s)
- Siyang Xing
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, People's Republic of China
| | - Yuhan Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, People's Republic of China
| | - Changkun Jin
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, People's Republic of China
| | - Shaochen Shi
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, People's Republic of China
| | - Yihui Zhang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, People's Republic of China
| | - Ziya Liao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, People's Republic of China
| | - Kui Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, People's Republic of China
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, People's Republic of China
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9
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Zeng M, Xue Y, Qin Y, Peng F, Li Q, Zeng MH. CuBr-promoted domino Biginelli reaction for the diastereoselective synthesis of bridged polyheterocycles: mechanism studies and in vitro anti-tumor activities. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.02.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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10
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Li J, Wang S, Xu G, Cui X, Zi B, Liu T, Huang C. Switchable Synthesis of Cyclohexanedione‐Fused 2,8‐Oxaza/2,8‐Dioxa Bicyclo[3.3.1]nonanes and 4‐Substituted 4H‐Chromenes Via Tunability of the Deamination/Dehydration Process. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jingpeng Li
- Yunnan Minzu University School of Chemistry and Environment CHINA
| | - Shuang Wang
- Yunnan Minzu University School of Chenistry and Environment CHINA
| | - Genrui Xu
- Dalian Minzu University School of Chemistry and Environment CHINA
| | - Xin Cui
- Yunnan Minzu University School of Chemistry and Environment CHINA
| | - Boqin Zi
- Qujing Normal University College of Chemistry and Environmental Science CHINA
| | - Teng Liu
- Qujing Normal University College of Chemistry and Environmental Science CHINA
| | - Chao Huang
- Yunnan Minzu University School of Chemistry and Environment Yuehua Street No.2929, Chenggong District 650500 Kunming CHINA
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11
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Pyrrolidine‐Catalyzed Annulations of Quinone Monoacetals with Naphthols: Synthesis of 2‐Oxabicyclo[3.3.1]nonane Skeletons, Transformations and Reaction Mechanism. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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12
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Rahmatpour A, Sajjadinezhad SM, Mirkani A, Notash B. Regioselective synthesis of di-aromatic ring-fused 2,8-dioxa/dithia bicyclo[3,3,1]nonane derivatives via recyclable polymeric Brønsted acid-catalyzed one-pot tandem formation of multiple chemical C–C/C–O and C–C/C–S bonds. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Zhang J, Wang X, Xu T. Regioselective activation of benzocyclobutenones and dienamides lead to anti-Bredt bridged-ring systems by a [4+4] cycloaddition. Nat Commun 2021; 12:3022. [PMID: 34021154 PMCID: PMC8140143 DOI: 10.1038/s41467-021-23344-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/26/2021] [Indexed: 02/04/2023] Open
Abstract
To the best of our knowledge, bridgehead carbon benzofused-bridged ring systems have previously not been accessible to the synthetic community. Here, we describe a formal type-II [4 + 4] cycloaddition approach that provides fully sp2-carbon embedded anti-Bredt bicyclo[5.3.1] skeletons through the Rh-catalyzed C1-C8 activation of benzocyclobutenones (BCBs) and their coupling with pedant dienamides. Variously substituted dienamides have been coupled with BCBs to provide a range of complex bicyclo[5.3.1] scaffolds (>20 examples, up to 89% yield). The bridged rings were further converted to polyfused hydroquinoline-containing tetracycles via a serendipitously discovered transannular 1,5-hydride shift/Prins-like cyclization/Schmidt rearrangement cascade.
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Affiliation(s)
- Jianyu Zhang
- Molecular Synthesis Center and Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Xi Wang
- Molecular Synthesis Center and Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Tao Xu
- Molecular Synthesis Center and Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.
- Laboratory for Marine Drugs and Bioproducts and Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology, Qingdao, China.
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14
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Min L, Hu YJ, Fan JH, Zhang W, Li CC. Synthetic applications of type II intramolecular cycloadditions. Chem Soc Rev 2020; 49:7015-7043. [PMID: 32869796 DOI: 10.1039/d0cs00365d] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Type II intramolecular cycloadditions ([4+2], [4+3], [4+4] and [5+2]) have emerged recently as an efficient and powerful strategy for the construction of bridged ring systems. In general, type II cycloadditions provide access to a wide range of bridged bicyclo[m.n.1] ring systems with high regio- and diastereoselectivity in an easy and straightforward manner. In each section of this review, an overview of the corresponding type II cycloadditions is presented, which is followed by highlights of method development and synthetic applications in natural product synthesis. The goal of this review is to provide a survey of recent advances in the field covering literature up to 2020. The review will serve as a useful reference for organic chemists engaged in the total synthesis of natural products containing bridged bicyclo[m.n.1] ring systems and provide strong stimulus for invention and further advances in this exciting research field.
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Affiliation(s)
- Long Min
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China.
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15
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Hou SH, Yu X, Zhang R, Deng L, Zhang M, Prichina AY, Dong G. Enantioselective Type II Cycloaddition of Alkynes via C-C Activation of Cyclobutanones: Rapid and Asymmetric Construction of [3.3.1] Bridged Bicycles. J Am Chem Soc 2020; 142:13180-13189. [PMID: 32619351 DOI: 10.1021/jacs.0c05647] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Synthesis of bridged scaffolds via Type II cyclization constitutes substantial challenges due to the intrinsic ring strain accumulated in reaction transition states. Catalytic enantioselective Type II-cyclization methods are even rarer. Here, we describe a detailed study of developing a Rh(I)-catalyzed enantioselective intramolecular Type II cyclization of alkynes via C-C activation of cyclobutanones. This method offers a rapid approach to access a wide range of functionalized [3.3.1]-bridged bicycles along with an exocyclic olefin and an all-carbon quaternary stereocenter. Excellent enantioselectivity has been achieved using a combination of cationic rhodium(I) and DTBM-segphos. Attributed to the redox neutral and strong acid/base-free reaction conditions, high chemoselectivity has also been observed. For the oxygen-tethered substrates, the reaction can proceed at room temperature. In addition, partial kinetic resolution has been achieved for substrates with existing stereocenters, forging interesting chiral tricyclic scaffolds. The methylalkyne-derived substrates gave unexpected dimeric structures in good yield with excellent enantioselectivity and complete diastereoselectivity. Furthermore, the bridged bicyclic products can be diversely functionalized through simple transformations. Finally, mechanistic studies reveal a surprising reaction pathway that involves forming a metal-stabilized anti-Bredt olefin intermediate.
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Affiliation(s)
- Si-Hua Hou
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Xuan Yu
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Rui Zhang
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Lin Deng
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Mengxi Zhang
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Adriana Y Prichina
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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16
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Tan Y, Zhao Z, Chen Z, Huang S, Jia S, Peng L, Xu D, Qin W, Yan H. N-Iodosuccinimide-Mediated Dimerization of 2-Alkynylnaphthols: A Highly Diastereoselective Construction of Bridged Polycyclic Compounds via Vinylidene ortho-Quinone Methide Intermediate. Org Lett 2020; 22:4461-4466. [DOI: 10.1021/acs.orglett.0c01458] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yu Tan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Zhengxing Zhao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Zhili Chen
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Shengli Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Shiqi Jia
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Lei Peng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Da Xu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
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17
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Fan WT, Yang XP, Lv HP, Wang XW, Wang Z. Chiral Binaphthyl Box-Copper-Catalyzed Enantioselective Tandem Michael–Ketalization Annulations for Optically Active Aryl and Heteroaryl Fused Bicyclicnonanes. Org Lett 2020; 22:3936-3941. [DOI: 10.1021/acs.orglett.0c01221] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Wei-Tai Fan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, the People’s Republic of China
| | - Xiao-Peng Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, the People’s Republic of China
| | - Hao-Peng Lv
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, the People’s Republic of China
| | - Xing-Wang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, the People’s Republic of China
| | - Zheng Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy
of Sciences, 345 Lingling Road, Shanghai 200032, the People’s Republic of China
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18
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Suneja A, Loui HJ, Schneider C. Cooperative Catalysis for the Highly Diastereo- and Enantioselective [4+3]-Cycloannulation of ortho-Quinone Methides and Carbonyl Ylides. Angew Chem Int Ed Engl 2020; 59:5536-5540. [PMID: 31895488 PMCID: PMC7155103 DOI: 10.1002/anie.201913603] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/12/2019] [Indexed: 11/08/2022]
Abstract
We describe herein a highly diastereo- and enantioselective [4+3]-cycloannulation of ortho-quinone methides and carbonyl ylides to furnish functionalized oxa-bridged dibenzooxacines with excellent yields and stereoselectivity in a single synthetic step. The combination of rhodium and chiral phosphoric acid catalysis working in concert to generate both transient intermediates in situ provides direct access to complex bicyclic products with two quaternary and one tertiary stereogenic centers. The products may be further functionalized into valuable and enantiomerically highly enriched building blocks.
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Affiliation(s)
- Arun Suneja
- Institut für Organische ChemieUniversität LeipzigJohannisallee 2904103LeipzigGermany
| | - Henning Jakob Loui
- Institut für Organische ChemieUniversität LeipzigJohannisallee 2904103LeipzigGermany
| | - Christoph Schneider
- Institut für Organische ChemieUniversität LeipzigJohannisallee 2904103LeipzigGermany
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19
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Min L, Liu X, Li CC. Total Synthesis of Natural Products with Bridged Bicyclo[m.n.1] Ring Systems via Type II [5 + 2] Cycloaddition. Acc Chem Res 2020; 53:703-718. [PMID: 32069021 DOI: 10.1021/acs.accounts.9b00640] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Natural products containing bridged ring systems are widely identified and show significant biological activity. The development of efficient synthesis reactions and strategies to construct bridged ring systems is a long-standing but very significant challenge in organic chemistry. In 2014, our group developed a unique type II [5 + 2] cycloaddition reaction that provides a facile and direct methodology for constructing highly functionalized bridged bicyclo[4.3.1], bicyclo[4.4.1], bicyclo[5.4.1], bicyclo[6.4.1], and other bicyclo[m.n.1] systems containing a strained bridgehead double bond. In this Account, we summarize the methodology development and report the results of application of our unique strategy for the total synthesis of several natural products with bridged ring systems (i.e., cyclocitrinol, cerorubenic acid-III, and vinigrol) during the past 5 years in our laboratory. In the first part, we introduce the logic behind the design and discovery of type II [5 + 2] cycloadditions. The substrates can be easily synthesized by a modular approach, followed by base-promoted group elimination under heat to form an oxidopyrylium ylide, which can undergo cycloaddition under relatively mild conditions with a variety of double bonds to generate bridged bicyclo[m.n.1] frameworks in high yield. The diastereocontrol and unique endo selectivity of this methodology are favorable for further application to the synthesis of complex natural products. In the second part, we highlight our endeavors in the total synthesis of several different types of molecules bearing bridged ring systems using our methodology. The bridged bicyclo[4.4.1] system is the core structure of two different types of natural products, cyclocitrinol and cerorubenic acid-III, that can be efficiently constructed by type II [5 + 2] cycloadditions. The development of suitable strategies and methods for site-selective cleavage of the C-O bond of the oxa-[3.2.1] ring system in the products of type II [5 + 2] cycloadditions is also discussed and highlighted during the syntheses. Moreover, the bridged bicyclo[5.3.1] system is the core structure of vinigrol, which can be constructed through a novel ring contraction sequence of the bicyclo[5.4.1] system formed by a type II [5 + 2] cycloaddition. By combining with a ring contraction cascade, we believe that type II [5 + 2] cycloadditions have the potential to be used as a unified approach to constructing natural products containing bridged bicyclo[m.n.1] frameworks.
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Affiliation(s)
- Long Min
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Xin Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
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20
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Li BQ, Qiu ZW, Ma AJ, Peng JB, Feng N, Du JY, Pan HP, Zhang XZ, Xu XT. Diastereoselective Synthesis of Cycloheptannelated Indoles via Lewis-Acid-Catalyzed (4 + 3)-Cyclization of Donor–Acceptor Cyclopropanes. Org Lett 2020; 22:1903-1907. [DOI: 10.1021/acs.orglett.0c00248] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Bao Qiong Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Zong-Wang Qiu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Ji-Yuan Du
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, P. R. China
| | - Han-Peng Pan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Xiang-Zhi Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
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21
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Suneja A, Loui HJ, Schneider C. Kooperative Katalyse für die diastereo‐ und enantioselektive [4+3]‐Cycloanellierung von
ortho
‐Chinonmethiden und Carbonylyliden. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913603] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Arun Suneja
- Institut für Organische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Deutschland
| | - Henning Jakob Loui
- Institut für Organische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Deutschland
| | - Christoph Schneider
- Institut für Organische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Deutschland
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22
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Nie B, Wu W, Zhang Y, Jiang H, Zhang J. Recent advances in the synthesis of bridgehead (or ring-junction) nitrogen heterocycles via transition metal-catalyzed C–H bond activation and functionalization. Org Chem Front 2020. [DOI: 10.1039/d0qo00510j] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An update on recent advances in the synthesis of bridgehead nitrogen fused heterocycles via transition metal-catalyzed C–H activation and functionalization is reported.
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Affiliation(s)
- Biao Nie
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
| | - Yingjun Zhang
- State Key Laboratory of Anti-Infective Drug Development (NO. 2015DQ780357)
- Sunshine Lake Pharma Co
- Ltd
- HEC R&D Center
- Dongguan, 523871
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
| | - Ji Zhang
- State Key Laboratory of Anti-Infective Drug Development (NO. 2015DQ780357)
- Sunshine Lake Pharma Co
- Ltd
- HEC R&D Center
- Dongguan, 523871
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23
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Huang W, Chen S, Yang J, El‐Harairy A, Wang X, Li M, Gu Y. Modular Synthesis of Bicyclic and Tricyclic (Aza‐) Arenes from Nucleophilic (Aza‐)Arenes with Electrophilic Side Arms via [4+2] Annulation Reactions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900425] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Wenbo Huang
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Shaomin Chen
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Jian Yang
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Ahmed El‐Harairy
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Xin Wang
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Minghao Li
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Yanlong Gu
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, LanzhouInstitute of Chemical Physics Lanzhou 730000 People's Republic of China
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24
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Tan TD, Zhu XQ, Bu HZ, Deng G, Chen YB, Liu RS, Ye LW. Copper-Catalyzed Cascade Cyclization of Indolyl Homopropargyl Amides: Stereospecific Construction of Bridged Aza-[n.2.1] Skeletons. Angew Chem Int Ed Engl 2019; 58:9632-9639. [PMID: 31095848 DOI: 10.1002/anie.201904698] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Indexed: 11/09/2022]
Abstract
Catalytic cycloisomerization-initiated cascade cyclizations of terminal alkynes have received tremendous interest, and been widely used in the facile synthesis of a diverse array of valuable complex heterocycles. However, these tandem reactions have been mostly limited to noble-metal catalysis, and are initiated by an exo-cyclization pathway. Reported herein is an unprecedented copper-catalyzed endo-cyclization-initiated tandem reaction of indolyl homopropargyl amides, where copper catalyzes both the hydroamination and Friedel-Crafts alkylation process. This method allows the practical and atom-economical synthesis of valuable bridged aza-[n.2.1] skeletons (n=3-6) with wide substrate scope, and excellent diastereoselectivity and enantioselectivity by a chirality-transfer strategy. Moreover, the mechanistic rationale for this novel cascade cyclization is also strongly supported by control experiments, and is distinctively different from the related gold catalysis.
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Affiliation(s)
- Tong-De Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Hao-Zhen Bu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Guocheng Deng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yang-Bo Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Rai-Shung Liu
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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25
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Tan T, Zhu X, Bu H, Deng G, Chen Y, Liu R, Ye L. Copper‐Catalyzed Cascade Cyclization of Indolyl Homopropargyl Amides: Stereospecific Construction of Bridged Aza‐[
n
.2.1] Skeletons. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904698] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Tong‐De Tan
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Xin‐Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Hao‐Zhen Bu
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Guocheng Deng
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Yang‐Bo Chen
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Rai‐Shung Liu
- Department of ChemistryNational Tsing-Hua University Hsinchu Taiwan
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 China
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26
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Jiang B, Xiao BX, Ouyang Q, Liang HP, Du W, Chen YC. Sequential Assembly of Morita–Baylis–Hillman Carbonates and Activated ortho-Vinylbenzaldehydes To Construct Chiral Methanobenzo[7]annulenone Frameworks. Org Lett 2019; 21:3310-3313. [PMID: 30998376 DOI: 10.1021/acs.orglett.9b01058] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Bo Jiang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ben-Xian Xiao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Qin Ouyang
- State Key Laboratory of Trauma, Burn and Combined Injury, and College of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
| | - Hua-Ping Liang
- State Key Laboratory of Trauma, Burn and Combined Injury, and College of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
- State Key Laboratory of Trauma, Burn and Combined Injury, and College of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
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27
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Zhang J, Liao Z, Chen L, Zhu S. Rapid Access to Oxa‐Bridged Bicyclic Skeletons through Gold‐Catalyzed Tandem Rearrangement Reaction. Chemistry 2019; 25:9405-9409. [DOI: 10.1002/chem.201900807] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/12/2019] [Indexed: 01/26/2023]
Affiliation(s)
- Jiantao Zhang
- Key Laboratory of Functional Molecular Engineering of, Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 P. R. China
| | - Zhehui Liao
- Key Laboratory of Functional Molecular Engineering of, Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 P. R. China
| | - Lianfen Chen
- Key Laboratory of Functional Molecular Engineering of, Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 P. R. China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of, Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 P. R. China
- Guangdong Engineering Research Center for Green Fine ChemicalsSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 P. R. China
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28
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Zhang T, Li T, Wu X, Li J. Theoretical Study of Ruthenium(0)-Catalyzed Transfer Hydrogenative Cycloaddition of Cyclohexadiene and Norbornadiene with 1,2-Diols to Form Bridged Carbocycles. J Org Chem 2019; 84:3377-3387. [PMID: 30775919 DOI: 10.1021/acs.joc.8b03276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The recent success of Krische et al. ( Angew. Chem., Int. Ed. 2017 , 56 , 14667 -14671 ) in achieving a ruthenium(0)-catalyzed transfer hydrogenative cycloaddition of 1,2-diols with cyclohexadiene and norbornadiene in excellent yield with exo- and diastereoselectivity represents an exciting development in the synthesis of bridged carbocycles. In the present work, the possible catalytic mechanisms and origin of the exo- and diastereoselectivity for cyclohexadiene and norbornadiene were studied in detail by density functional theory calculations. The theoretical results indicate that the exoselective pathway for the cyclohexadiene substrate proceeds by a novel two-step successive C-C coupling, while the endoselective pathway undergoes the C-C coupling reaction in a conventional concerted manner. The origin of the preferential chemoselectivity of dione-cyclohexadiene C-C coupling over aromatization to benzene was investigated. Aromatization to benzene is unfavorable because of the large distortion energy of the three-membered ring in the transition state of hydrogen migration. From distortion/interaction analysis, for norbornadiene, the distortion energy plays the main role in determining the exoselectivity.
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Affiliation(s)
- Tian Zhang
- Department of Chemistry , Jinan University , Huangpu Road West 601 , Guangzhou , Guangdong 510632 , P. R. China
| | - Ting Li
- Department of Chemistry , Jinan University , Huangpu Road West 601 , Guangzhou , Guangdong 510632 , P. R. China
| | - Xiajun Wu
- Department of Chemistry , Jinan University , Huangpu Road West 601 , Guangzhou , Guangdong 510632 , P. R. China
| | - Juan Li
- Department of Chemistry , Jinan University , Huangpu Road West 601 , Guangzhou , Guangdong 510632 , P. R. China
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29
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Wang MS, Wang Z, Chen W, Yang X, Zhang H. Synthesis of Oxa-Bridged Medium-Sized Carbocyclic Rings via Prins Cyclization. Org Lett 2019; 21:1881-1884. [PMID: 30816720 DOI: 10.1021/acs.orglett.9b00491] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Herein, we report a new method for the synthesis of oxa-bridged carbocyclic units based on intramolecular Prins reaction of dioxinones. Our new synthetic approach is flexible and practical and has been successfully applied to the preparation of highly functionalized seven-, eight-, and nine-membered carbocycles. The potential utility of this approach has also been demonstrated in a model study toward construction of the 7,8-fused ring system presented in neoabyssomicin D.
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Affiliation(s)
- Min-Shou Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology , Yunnan University , Kunming , Yunnan 650091 , P. R. China
| | - Zheng Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology , Yunnan University , Kunming , Yunnan 650091 , P. R. China
| | - Wen Chen
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology , Yunnan University , Kunming , Yunnan 650091 , P. R. China
| | - Xiaodong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology , Yunnan University , Kunming , Yunnan 650091 , P. R. China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology , Yunnan University , Kunming , Yunnan 650091 , P. R. China
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30
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Li H, Hao WJ, Wang M, Qin X, Tu SJ, Zhou P, Li G, Wang J, Jiang B. Catalytic Double [2 + 2] Cycloaddition Relay Enabled C-C Triple Bond Cleavage of Yne-Allenones. Org Lett 2018; 20:4362-4366. [PMID: 29989832 DOI: 10.1021/acs.orglett.8b01841] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
An unusual catalytic double [2 + 2] cycloaddition relay reaction of yne-allenones with unactivated alkenes and alkynes has been achieved, which enabled C-C triple-bond cleavage to access more than 60 examples of functionalized phenanthren-9-ols with generally good yields. This reaction provides a regioselective and practical method for the construction of carbocyclic ring systems with a high degree of functional group compatibility. Aside from surveying the scope of this transformation, mechanistic details of this process are provided by conducting systematic theoretical calculations.
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Affiliation(s)
- Heng Li
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials , Jiangsu Normal University , Xuzhou 221116 , P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials , Jiangsu Normal University , Xuzhou 221116 , P. R. China
| | - Mian Wang
- Medical College , Guangxi University , Nanning 530004 , P.R. China
| | - Xue Qin
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials , Jiangsu Normal University , Xuzhou 221116 , P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials , Jiangsu Normal University , Xuzhou 221116 , P. R. China
| | - Peng Zhou
- Institute of Chemistry & BioMedical Sciences, Nanjing University , Nanjing 210093 , P. R. China
| | - Guigen Li
- Institute of Chemistry & BioMedical Sciences, Nanjing University , Nanjing 210093 , P. R. China.,Department of Chemistry and Biochemistry , Texas Tech University , Lubbock , Texas 79409-1061 , United States
| | - Jianyi Wang
- Medical College , Guangxi University , Nanning 530004 , P.R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials , Jiangsu Normal University , Xuzhou 221116 , P. R. China
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31
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Ma S, Yu A, Zhang L, Meng X. Phosphine-Catalyzed Domino Reaction of Thioaurones and Allenoate: Synthesis of Benzothiophene-Fused Dioxabicyclo[3.3.1]nonane Derivatives. J Org Chem 2018; 83:5410-5419. [DOI: 10.1021/acs.joc.8b00145] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shanshan Ma
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People’s Republic of China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People’s Republic of China
| | - Lei Zhang
- School of Science, Tianjin Chengjian University, Tianjin 300384, People’s Republic of China
- College of Chemistry, Beijing Normal University, Beijing 100875, People’s Republic of China
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People’s Republic of China
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32
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Bai D, Xu T, Ma C, Zheng X, Liu B, Xie F, Li X. Rh(III)-Catalyzed Mild Coupling of Nitrones and Azomethine Imines with Alkylidenecyclopropanes via C–H Activation: Facile Access to Bridged Cycles. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00746] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Dachang Bai
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Teng Xu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Chaorui Ma
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Xin Zheng
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Bingxian Liu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Fang Xie
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xingwei Li
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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33
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Promontorio R, Richard JA, Marson CM. Late-stage fluorination of bridged scaffolds: Chemoselective generation of a CHF group at three positions of the bicyclo[3.3.1]nonane system. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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Sato H, Fukaya K, Poudel BS, Krische MJ. Diols as Dienophiles: Bridged Carbocycles via Ruthenium(0)-Catalyzed Transfer Hydrogenative Cycloadditions of Cyclohexadiene or Norbornadiene. Angew Chem Int Ed Engl 2017; 56:14667-14671. [PMID: 28941001 PMCID: PMC5677533 DOI: 10.1002/anie.201708189] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/07/2017] [Indexed: 12/16/2022]
Abstract
Highly exo-selective ruthenium(0) catalyzed transfer hydrogenative cycloadditions of 1,2-diols with cyclohexadiene or norbornadiene are described. Novel bridged bicyclic ring systems are accessible from the diol, α-ketol or 1,2-dione oxidation levels with complete control of diastereoselectivity.
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Affiliation(s)
- Hiroki Sato
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX, 78712-1167, USA
| | - Keisuke Fukaya
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX, 78712-1167, USA
| | - Binit Sharma Poudel
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX, 78712-1167, USA
| | - Michael J Krische
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX, 78712-1167, USA
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35
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Sato H, Fukaya K, Poudel BS, Krische MJ. Diols as Dienophiles: Bridged Carbocycles via Ruthenium(0)-Catalyzed Transfer Hydrogenative Cycloadditions of Cyclohexadiene or Norbornadiene. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708189] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hiroki Sato
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. (A5300) Austin TX 78712-1167 USA
| | - Keisuke Fukaya
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. (A5300) Austin TX 78712-1167 USA
| | - Binit Sharma Poudel
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. (A5300) Austin TX 78712-1167 USA
| | - Michael J. Krische
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. (A5300) Austin TX 78712-1167 USA
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36
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Li Y, Li JX, Ouyang XH, Wang QA, Li JH. Manganese-Catalyzed Intermolecular Oxidative Annulation of Alkynes with γ-Vinyl Aldehydes: An Entry to Bridged Carbocyclic Systems. Org Lett 2017; 19:6172-6175. [DOI: 10.1021/acs.orglett.7b03086] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yang Li
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Xia Li
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Xuan-Hui Ouyang
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Qiu-An Wang
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Jin-Heng Li
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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37
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Takatori K, Ota S, Tendo K, Matsunaga K, Nagasawa K, Watanabe S, Kishida A, Kogen H, Nagaoka H. Synthesis of Methylenebicyclo[3.2.1]octanol by a Sm(II)-Induced 1,2-Rearrangement Reaction with Ring Expansion of Methylenebicyclo[4.2.0]octanone. Org Lett 2017; 19:3763-3766. [DOI: 10.1021/acs.orglett.7b01604] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kazuhiko Takatori
- Graduate School of Pharmaceutical
Sciences, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Shoya Ota
- Graduate School of Pharmaceutical
Sciences, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Kenta Tendo
- Graduate School of Pharmaceutical
Sciences, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Kazuma Matsunaga
- Graduate School of Pharmaceutical
Sciences, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Kokoro Nagasawa
- Graduate School of Pharmaceutical
Sciences, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Shinya Watanabe
- Graduate School of Pharmaceutical
Sciences, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Atsushi Kishida
- Graduate School of Pharmaceutical
Sciences, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Hiroshi Kogen
- Graduate School of Pharmaceutical
Sciences, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Hiroto Nagaoka
- Graduate School of Pharmaceutical
Sciences, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
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38
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Zhang C, Tian J, Ren J, Wang Z. Intramolecular Parallel [4+3] Cycloadditions of Cyclopropane 1,1-Diesters with [3]Dendralenes: Efficient Construction of [5.3.0]Decane and Corresponding Polycyclic Skeletons. Chemistry 2016; 23:1231-1236. [DOI: 10.1002/chem.201605190] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Chi Zhang
- State Key Laboratory of Elemento-Organic Chemistry; Institute of Elemento-Organic Chemistry; College of Chemistry; Collaborative Innovation Center of Chemical Science and Engineering; Nankai University; 94 Weijin Road Tianjin 300071 P. R. China
| | - Jun Tian
- State Key Laboratory of Elemento-Organic Chemistry; Institute of Elemento-Organic Chemistry; College of Chemistry; Collaborative Innovation Center of Chemical Science and Engineering; Nankai University; 94 Weijin Road Tianjin 300071 P. R. China
| | - Jun Ren
- State Key Laboratory of Elemento-Organic Chemistry; Institute of Elemento-Organic Chemistry; College of Chemistry; Collaborative Innovation Center of Chemical Science and Engineering; Nankai University; 94 Weijin Road Tianjin 300071 P. R. China
| | - Zhongwen Wang
- State Key Laboratory of Elemento-Organic Chemistry; Institute of Elemento-Organic Chemistry; College of Chemistry; Collaborative Innovation Center of Chemical Science and Engineering; Nankai University; 94 Weijin Road Tianjin 300071 P. R. China
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39
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Chen X, Day DP, Teo WT, Chan PWH. Gold- and Brønsted Acid-Catalyzed Cycloisomerization of 1,8-Diynyl Vinyl Acetates to Bicyclo[2.2.1]hept-2-en-7-ones. Org Lett 2016; 18:5936-5939. [DOI: 10.1021/acs.orglett.6b03049] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xiaoyu Chen
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - David Philip Day
- Department
of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - Wan Teng Teo
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Philip Wai Hong Chan
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
- Department
of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom
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40
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Duan J, Cheng J, Cheng Y, Li P. Synthesis of Dinitrogen‐Fused Spirocyclic Heterocycles via Organocatalytic 1,3‐dipolar Cycloaddition of 2‐Arylidene‐1,3‐indandiones and an Azomethine Imine. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201500529] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jindian Duan
- Department of ChemistrySouth University of Science and Technology of China 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 P. R. China
| | - Jing Cheng
- Department of ChemistrySouth University of Science and Technology of China 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 P. R. China
| | - Yuyu Cheng
- Department of ChemistrySouth University of Science and Technology of China 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 P. R. China
| | - Pengfei Li
- Department of ChemistrySouth University of Science and Technology of China 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 P. R. China
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41
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Ren JW, Zhou ZF, Xiao JA, Chen XQ, Yang H. Acid-Relayed Organocatalyticexo-Diels-Alder Cycloaddition of Cyclic Enones with 2-Vinyl-1H-indoles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501619] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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42
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Ondet P, Lempenauer L, Duñach E, Lemière G. Bismuth(iii) triflate-catalysed tandem cyclisations towards complex polycyclic ethers. Org Chem Front 2016. [DOI: 10.1039/c6qo00212a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of complex polycyclic ethers have been synthesised under very mild conditions using a low catalyst loading of bismuth(iii) triflate.
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Affiliation(s)
- Pierrick Ondet
- Institut de Chimie de Nice
- UMR 7272
- Université Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - Luisa Lempenauer
- Institut de Chimie de Nice
- UMR 7272
- Université Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - Elisabet Duñach
- Institut de Chimie de Nice
- UMR 7272
- Université Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - Gilles Lemière
- Institut de Chimie de Nice
- UMR 7272
- Université Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
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43
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Dong Y, Du N, Li X, Zheng L, Liu G. Tandem Chloropalladation/Cyclization and Dearomative Cyclization toward Functionalized Tricyclic Bridged [3.2.1] Skeleton Compounds. Org Lett 2015; 17:4110-3. [DOI: 10.1021/acs.orglett.5b02076] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yi Dong
- Tsinghua-Peking
Center for Life Sciences, Handian Dist., Beijing 100084, P. R. China
- Department
of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University, Haidian Dist., Beijing 100084, P. R. China
| | - Nana Du
- Tsinghua-Peking
Center for Life Sciences, Handian Dist., Beijing 100084, P. R. China
- Department
of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University, Haidian Dist., Beijing 100084, P. R. China
| | - Xueyuan Li
- Department
of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University, Haidian Dist., Beijing 100084, P. R. China
| | - Litao Zheng
- Department
of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University, Haidian Dist., Beijing 100084, P. R. China
| | - Gang Liu
- Tsinghua-Peking
Center for Life Sciences, Handian Dist., Beijing 100084, P. R. China
- Department
of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University, Haidian Dist., Beijing 100084, P. R. China
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44
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Burns AR, Madec AGE, Low DW, Roy ID, Lam HW. Enantioselective synthesis of bicyclo[3.n.1]alkanes by chiral phosphoric acid-catalyzed desymmetrizing Michael cyclizations. Chem Sci 2015; 6:3550-3555. [PMID: 29511516 PMCID: PMC5659222 DOI: 10.1039/c5sc00753d] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 04/12/2015] [Indexed: 12/16/2022] Open
Abstract
2,2-Disubstituted cyclic 1,3-diketones containing a tethered electron-deficient alkene undergo chiral phosphoric acid-catalyzed desymmetrizing Michael cyclizations to give bridged bicyclic products in high enantioselectivities. Both bicyclo[3.2.1]octanes and bicyclo[3.3.1]nonanes are accessible using this methodology.
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Affiliation(s)
- Alan R Burns
- EaStCHEM , School of Chemistry , University of Edinburgh , Joseph Black Building, The King's Buildings, David Brewster Road , Edinburgh , EH9 3FJ , UK
- School of Chemistry , University of Nottingham , University Park , Nottingham , NG7 2RD , UK .
| | - Amaël G E Madec
- School of Chemistry , University of Nottingham , University Park , Nottingham , NG7 2RD , UK .
| | - Darryl W Low
- EaStCHEM , School of Chemistry , University of Edinburgh , Joseph Black Building, The King's Buildings, David Brewster Road , Edinburgh , EH9 3FJ , UK
| | - Iain D Roy
- EaStCHEM , School of Chemistry , University of Edinburgh , Joseph Black Building, The King's Buildings, David Brewster Road , Edinburgh , EH9 3FJ , UK
| | - Hon Wai Lam
- EaStCHEM , School of Chemistry , University of Edinburgh , Joseph Black Building, The King's Buildings, David Brewster Road , Edinburgh , EH9 3FJ , UK
- School of Chemistry , University of Nottingham , University Park , Nottingham , NG7 2RD , UK .
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45
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Bingi C, Kale A, Nanubolu JB, Atmakur K. Acid promoted synthesis of cyclic 1,3-dione fused symmetrical 2,8-dioxabicyclo[3.3.1]nonanes. RSC Adv 2015. [DOI: 10.1039/c5ra23706h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of symmetrical 2,8-dioxabicyclo[3.3.1]nonanes (4) is accomplished by the reaction of β-enamino ketones (1) and 1,3-cyclohexanediones (2) in AcOH. However, the presence of TFA in toluene gave xanthenes (5).
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Affiliation(s)
- Chiranjeevi Bingi
- Division of Crop Protection Chemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Ashok Kale
- Division of Crop Protection Chemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Jagadeesh Babu Nanubolu
- Laboratory of X-ray Crystallography
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Krishnaiah Atmakur
- Division of Crop Protection Chemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
- AcSIR-Indian Institute of Chemical Technology
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46
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Poomathi N, Mayakrishnan S, Muralidharan D, Perumal PT. A facile access to novel spiroxindole fused pyrrolidine and thiazolo pyrrolidine benzimidazole derivatives via 1,3-dipolar cycloaddition reaction. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.088] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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47
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Zhang J, Xing S, Ren J, Jiang S, Wang Z. Lewis acid catalyzed intramolecular [3 + 2] cross cycloadditions of cobalt-alkynylcyclopropane 1,1-diesters with carbonyls for construction of medium-sized and polycyclic skeletons. Org Lett 2014; 17:218-21. [PMID: 25535942 DOI: 10.1021/ol503285u] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A Lewis acid catalyzed intramolecular [3 + 2] cross cycloaddition of cobalt-alkynylcyclopropane 1,1-diesters with carbonyls has been successfully developed. Together with simple and efficient postcycloadditions of the cobalt-alkyne moiety, a general and efficient strategy for construction of structurally complex and diverse medium-sized skeletons and related polycycles was supplied successfully.
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Affiliation(s)
- Junhui Zhang
- School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, China
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48
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Casavant BJ, Hosseini AS, Chemler SR. 6-Azabicyclo[3.2.1]octanes Via Copper-Catalyzed Enantioselective Alkene Carboamination. Adv Synth Catal 2014; 356:2697-2702. [PMID: 25484848 DOI: 10.1002/adsc.201400317] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Bridged bicyclic rings containing nitrogen heterocycles are important motifs in bioactive small organic molecules. An enantioselective copper-catalyzed alkene carboamination reaction that creates bridged heterocycles is reported herein. Two new rings are formed in this alkene carboamination reaction where N-sulfonyl-2-aryl-4-pentenamines are converted to 6-azabicyclo[3.2.1]octanes using [Ph-Box-Cu](OTf)2 or related catalysts in the presence of MnO2 as stoichiometric oxidant in moderate to good yields and generally excellent enantioselectivities. Two new stereocenters are formed in the reaction, and the C-C bond-forming arene addition is a net C-H functionalization.
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Affiliation(s)
- Barbara J Casavant
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, New York 14260, United States. ; phone: (+1)-715-645-4225
| | - Azade S Hosseini
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, New York 14260, United States. ; phone: (+1)-715-645-4225
| | - Sherry R Chemler
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, New York 14260, United States. ; phone: (+1)-715-645-4225
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49
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Li QH, Wei L, Wang CJ. Catalytic Asymmetric 1,3-Dipolar [3 + 6] Cycloaddition of Azomethine Ylides with 2-Acyl Cycloheptatrienes: Efficient Construction of Bridged Heterocycles Bearing Piperidine Moiety. J Am Chem Soc 2014; 136:8685-92. [DOI: 10.1021/ja503309u] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Qing-Hua Li
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, China 430072
| | - Liang Wei
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, China 430072
| | - Chun-Jiang Wang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, China 430072
- State
Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, China 300071
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50
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Zhu W, Ren J, Wang Z. Acid-Catalyzed Domino Meinwald Rearrangement of Epoxides/Intramolecular [3+2] Cross-Cycloaddition of Cyclopropane-1,1-dicarboxylates. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402160] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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