1
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Wang N, Xu HJ, Li T, Ye LW, Zhou B. Copper-Catalyzed [2 + 2] Cyclization/Ring Expansion of Ene-Ynamides: Construction of Medium- and Large-Sized Rings. Org Lett 2024; 26:3861-3866. [PMID: 38679881 DOI: 10.1021/acs.orglett.4c01013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Catalytic cyclization of enynes is an efficient approach for the preparation of cyclic compounds, and a large variety of four- to six-membered rings could be synthesized using this method. However, it has been rarely employed for the construction of medium- and large-sized rings. Herein, we describe a copper-catalyzed cycloisomerization of ene-ynamides through a [2 + 2] cyclization/electrocyclic ring opening cascade, leading to the atom-economical assembly of indole-fused medium- and large-sized rings in moderate to excellent yields under mild reaction conditions. Importantly, the synthetic utility of this reaction was demonstrated by the convenient synthesis of iprindole.
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Affiliation(s)
- Nan Wang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Hao-Jin Xu
- Key Laboratory of Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ting Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Henan 473061, China
| | - Long-Wu Ye
- Key Laboratory of Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Bo Zhou
- Key Laboratory of Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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2
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Dong M, Tong X. Access to Cyclopentenone via Pd(0)-Catalyzed Reductive Cyclization of (Z)-5-Iodo-4-pentenenitrile. Org Lett 2024; 26:350-354. [PMID: 38153094 DOI: 10.1021/acs.orglett.3c03999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
A ligand-free Pd(0)-catalyzed cyclization of (Z)-5-iodo-4-pentenenitrile has been realized with the help of HCO2H reductant, which is followed by imine hydrolysis to afford cyclopentenone derivatives in moderate to good yields. Control experiments clearly points out that the proton originally came from HCO2H plays a crucial role on protonation of the resultant imido-Pd2+ intermediate. This protocol features mild condition, operational simplicity, as well as wide functional group tolerance.
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Affiliation(s)
- Ming Dong
- School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Xiaofeng Tong
- School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou, Zhejiang 318000, China
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3
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Meng J, He H, Liu Q, Xu H, Huang H, Ni SF, Li Z. Enantioselective Palladium(II)-Catalyzed Desymmetrizative Coupling of 7-Azabenzonorbornadienes with Alkynylanilines. Angew Chem Int Ed Engl 2024; 63:e202315092. [PMID: 37943545 DOI: 10.1002/anie.202315092] [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: 10/07/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/10/2023]
Abstract
A PdII -catalyzed, domino enantioselective desymmetrizative coupling of 7-azabenzonorbornadienes with alkynylanilines is disclosed herein. This operationally simple transformation generates three covalent bonds and two contiguous stereocenters with excellent enantio- and diastereo-selectivity. The resulting functionalized indole-dihydronaphthalene-amine conjugates served as an appealing platform to streamline the diversity-oriented synthesis (DOS) of other valuable enantioenriched compounds. DFT calculations revealed that the two stabilizing non-covalent interactions contributed to the observed enantioselectivity.
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Affiliation(s)
- Junjie Meng
- National Key Laboratory of Green Pesticide, College of Materials and Energy, South China Agricultural University, Guangzhou, 510641, Guangdong, China
| | - Hui He
- Department of Chemistry, Shantou University, Shantou, 515063, Guangdong, China
| | - Qianru Liu
- National Key Laboratory of Green Pesticide, College of Materials and Energy, South China Agricultural University, Guangzhou, 510641, Guangdong, China
| | - Hanhong Xu
- National Key Laboratory of Green Pesticide, College of Materials and Energy, South China Agricultural University, Guangzhou, 510641, Guangdong, China
| | - Huicai Huang
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510641, Guangdong, China
| | - Shao-Fei Ni
- Department of Chemistry, Shantou University, Shantou, 515063, Guangdong, China
| | - Zhaodong Li
- National Key Laboratory of Green Pesticide, College of Materials and Energy, South China Agricultural University, Guangzhou, 510641, Guangdong, China
- National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
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4
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Li X, Shen Y, Zhang G, Zheng X, Zhao Q, Song Z. Ru(II)-Catalyzed Decarbonylative Alkylation and Annulations of Benzaldehydes with Iodonium Ylides under Chelation Assistance. Org Lett 2022; 24:5281-5286. [PMID: 35849760 DOI: 10.1021/acs.orglett.2c01843] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Ru(II)-catalyzed decarbonylative alkylation and annulation of salicylaldehydes and 2-aminobenzaldehydes with iodonium ylides has been developed for the synthesis of dibenzo[b,d]furans and NH-free carbazolones. The reaction proceeds smoothly under mild conditions with a low catalyst loading and a broad substrate compatibility. Notably, hydroxy and free amino groups were demonstrated to be the effective directing groups, enabling the successful aldehyde C-H bond activation and subsequent decarbonylation and annulation under the inexpensive Ru(II) catalyst.
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Affiliation(s)
- Xiang Li
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Yang Shen
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Guodong Zhang
- College of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, Jiangsu 225002, China
| | - Xin Zheng
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Qing Zhao
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Zihe Song
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
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5
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Wang N, Xiao X, Liu CX, Yao H, Huang N, Zou K. Recent Advances in the Total Synthesis of <i>Aspidosperma</i> and <i>Kopsia</i> Alkaloids Using Tetracyclic Pyridocarbazoles as Versatile Building Blocks. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Xiao Xiao
- Zhejiang University of Technology CHINA
| | | | - Hui Yao
- China Three Gorges University CHINA
| | | | - Kun Zou
- China Three Gorges University CHINA
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6
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Bains AK, Kundu A, Maiti D, Adhikari D. Ligand-redox assisted nickel catalysis toward stereoselective synthesis of ( n+1)-membered cycloalkanes from 1, n-diols with methyl ketones. Chem Sci 2021; 12:14217-14223. [PMID: 34760207 PMCID: PMC8565367 DOI: 10.1039/d1sc04261k] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/04/2021] [Indexed: 01/16/2023] Open
Abstract
A well-defined, bench-stable nickel catalyst is presented here, that can facilitate double alkylation of a methyl ketone to realize a wide variety of cycloalkanes. The performance of the catalyst depends on the ligand redox process comprising an azo-hydrazo couple. The source of the bis electrophile in this double alkylation is a 1,n-diol, so that (n+1)-membered cycloalkanes can be furnished in a stereoselective manner. The reaction follows a cascade of dehydrogenation/hydrogenation reactions and adopts a borrowing hydrogen (BH) method. A thorough mechanistic analysis including the interception of key radical intermediates and DFT calculations supports the ligand radical-mediated dehydrogenation and hydrogenation reactions, which is quite rare in BH chemistry. In particular, this radical-promoted hydrogenation is distinctly different from conventional hydrogenations involving a metal hydride and complementary to the ubiquitous two-electron driven dehydrogenation/hydrogenation reactions.
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Affiliation(s)
- Amreen K Bains
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali SAS Nagar Punjab-140306 India
| | - Abhishek Kundu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali SAS Nagar Punjab-140306 India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai Mumbai-400076 India
| | - Debashis Adhikari
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali SAS Nagar Punjab-140306 India
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7
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Zhao S, Sirasani G, Andrade RB. Aspidosperma and Strychnos alkaloids: Chemistry and biology. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2021; 86:1-143. [PMID: 34565505 DOI: 10.1016/bs.alkal.2021.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
Of Nature's nearly 3000 unique monoterpene indole alkaloids derived from tryptophan, those members belonging to the Aspidosperma and Strychnos families continue to impact the fields of natural products (i.e., isolation, structure determination, biosynthesis) and organic chemistry (i.e., chemical synthesis, methodology development) among others. This review covers the biological activity (Section 2), biosynthesis (Section 3), and synthesis of both classical and novel Aspidosperma (Section 4), Strychnos (Section 5), and selected bis-indole (Section 6) alkaloids. Technological advancements in genetic sequencing and bioinformatics have deepened our understanding of how Nature assembles these intriguing molecules. The proliferation of innovative synthetic strategies and tactics for the synthesis of the alkaloids covered in this review, which include contributions from over fifty research groups from around the world, are a testament to the creative power and technical skills of synthetic organic chemists. To be sure, Nature-the Supreme molecular architect and source of a dazzling array of irresistible chemical logic puzzles-continues to inspire scientists across multiple disciplines and will certainly continue to do so for the foreseeable future.
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Affiliation(s)
- Senzhi Zhao
- Department of Chemistry, Temple University, Philadelphia, PA, United States
| | | | - Rodrigo B Andrade
- Department of Chemistry, Temple University, Philadelphia, PA, United States
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8
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Sujeevan Reddy G, Sandeep Kumar J, Thirupataiah B, Amirul Hossain K, Babu Nallapati S, Bhat Giliyaru V, Chandrashekhar Hariharapura R, Gautham Shenoy G, Pal M. Propargylamines in Pd/Cu-catalyzed tandem coupling-cyclization-N-deprotection in a single pot: Construction of N-unsubstituted vs N-sulfonyl indole ring. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Shukla RK, Chaturvedi AK, Volla CMR. Catalytic Cascade Cyclization and Regioselective Hydroheteroarylation of Unactivated Alkenes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01234] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Rahul K. Shukla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Atul K. Chaturvedi
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Chandra M. R. Volla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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10
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Mondal S, Ballav T, Biswas K, Ghosh S, Ganesh V. Exploiting the Versatility of Palladium Catalysis: A Modern Toolbox for Cascade Reactions. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100312] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sourav Mondal
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Tamal Ballav
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Krishna Biswas
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Suman Ghosh
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Venkataraman Ganesh
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
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11
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Katahara S, Sugiyama Y, Yamane M, Komiya Y, Sato T, Chida N. Five-Step Total Synthesis of (±)-Aspidospermidine by a Lactam Strategy via an Azomethine Ylide. Org Lett 2021; 23:3058-3063. [DOI: 10.1021/acs.orglett.1c00735] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Seiya Katahara
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Yasukazu Sugiyama
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Mina Yamane
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Yukinori Komiya
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Noritaka Chida
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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12
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Hu XD, Chen ZH, Zhao J, Sun RZ, Zhang H, Qi X, Liu WB. Enantioselective Synthesis of α-All-Carbon Quaternary Center-Containing Carbazolones via Amino-palladation/Desymmetrizing Nitrile Addition Cascade. J Am Chem Soc 2021; 143:3734-3740. [DOI: 10.1021/jacs.1c00840] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xu-Dong Hu
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Zi-Hao Chen
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Jing Zhao
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Rui-Ze Sun
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Hui Zhang
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Xiaotian Qi
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Wen-Bo Liu
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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13
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Yang Y, Jiang K, Zhu H, Yin B. Synthesis of Highly Conjugated Functionalized 2-Pyridones by Palladium-Catalyzed Aerobic Oxidative Dicarbonation Reactions of N-(Furan-2-ylmethyl) Alkyne Amides and Alkenes as Coupling Partners. J Org Chem 2021; 86:2748-2759. [PMID: 33459019 DOI: 10.1021/acs.joc.0c02730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A mild, step-economical method for the synthesis of highly conjugated functionalized 2-pyridones from N-(furan-2-ylmethyl) alkyne amides is reported. This method involves Pd-catalyzed aerobic oxidative dicarbonation reactions of alkynes with carbon nucleophiles of a furan ring and an acrylate or styrene as coupling partners. The UV-vis absorption spectra of some of the 2-pyridones indicated that they absorbed shortwave radiation, suggesting their potential utility for filtration of such radiation.
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Affiliation(s)
- Yongjie Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Kai Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Hua Zhu
- Guangxi Key Laboratory of Zhuang and Yao Ethnic Medicine, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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14
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De S, Jash M, Chowdhury C. Palladium(ii) catalysed cascade strategy for the synthesis of dibenzo[5,6:7,8]cycloocta[1,2-b]indol-10-ols/-10(15H)-ones: easy access to 1,3,5,7-cyclooctatetraenes (COTs). Chem Commun (Camb) 2020; 56:15659-15662. [PMID: 33289730 DOI: 10.1039/d0cc06538b] [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
An atom-economic Pd(ii)-catalysed cascade cyclisation of 2-(biphenylethynyl)anilines tethered to an aldehyde or cyano group leads to the formation of dibenzo[5,6:7,8]cycloocta[1,2-b]indol-10-ols 6 or dibenzo[5,6:7,8]cycloocta[1,2-b]indol-10(15H)-ones 8 with high yields (up to 95%). The reaction proceeds via amino-palladation of the alkyne followed by nucleophilic addition onto the aldehyde/cyano group. Treatment of 6 with p-TsOH·H2O smoothly provided cyclooctatetraene (COT) derivatives 7.
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Affiliation(s)
- Sukanya De
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata-700032, India.
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15
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Wang N, Jiang X. Synthetic Approaches to Tricyclic Aminoketones in the Total Synthesis of Aspidosperma and Kopsia Alkaloids. CHEM REC 2020; 21:295-314. [PMID: 33289266 DOI: 10.1002/tcr.202000131] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 12/13/2022]
Abstract
Aspidosperma and kopsia alkaloids are significant functional molecules because of their potent biological activities. Their intricate structures present an intrinsic synthetic challenge and thus attract significant attention from synthetic organic academic community. Over the past decades, a series of elegant strategies has been developed, in particular, the Stork's original Fischer indolization of tricyclic aminoketones 1. Herein, we report a comprehensive review on various synthetic approaches access to tricyclic aminoketones 1 and provide a practical guidance to readers whose are interested in employing tricyclic aminoketones 1 as versatile building blocks in the realm of total synthesis of aspidosperma, kopsia and structurally related alkaloids.
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Affiliation(s)
- Nengzhong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
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16
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Chen J, Han X, Lu X. Palladium(II)-catalyzed tandem cyclization of 2-ethynylaniline tethered cinnamyl acetate for the synthesis of indenoindoles. Org Biomol Chem 2020; 18:8850-8853. [PMID: 33119022 DOI: 10.1039/d0ob01975e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A palladium(ii)-catalyzed cyclization of 2-ethynylaniline tethered cinnamyl acetate involving aminopalladation/alkene insertion/β-acetoxy elimination cascade processes was established. The new protocol provides efficient access to indenoindoles in moderate to good yields under mild conditions.
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Affiliation(s)
- Junjie Chen
- State Key Laboratory of Organometallic Chemistry, 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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17
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Vonteddu NR, Solanke PR, Nayani K, Chandrasekhar S. Cation Triggered Domino Aza-Piancatelli Rearrangement/Friedel-Crafts Alkylation of Indole-Tethered Furfuyl Alcohols to Access Cycloocta[ b]indole Core of Alkaloids. Org Lett 2020; 22:8555-8560. [PMID: 33079545 DOI: 10.1021/acs.orglett.0c03155] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A domino approach to bridged cycloocta[b]indolone through a cascade of aza-Piancatelli rearrangement/Friedel-Crafts alkylation is developed. This transformation has been realized by reaction of an indole-tethered 2-furylcarbinol and substituted aniline in the presence of a Lewis acid to initiate aza-Piancatelli rearrangement followed by an in situ intramolecular Friedel-Crafts alkylation to access bridged tetracyclic frameworks in one pot.
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Affiliation(s)
- Nagarjuna Reddy Vonteddu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Cipla Ltd, MIDC Patalganga, Rasayani, Maharashtra 410220, India
| | - Pooja R Solanke
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Kiranmai Nayani
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Srivari Chandrasekhar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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18
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Efficient synthesis of pyrano[4,3-b]indol-1(5H)-ones from CO2 and alkynyl indoles promoted by a protic ionic liquid. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152449] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Usman M, Hu X, Liu W. Recent Advances and Perspectives in the Synthesis and Applications of Tetrahydrocarbazol‐4‐ones†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Muhammad Usman
- Sauvage Center for Molecular Sciences; Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
| | - Xu‐Dong Hu
- Sauvage Center for Molecular Sciences; Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
| | - Wen‐Bo Liu
- Sauvage Center for Molecular Sciences; Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
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20
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Kalshetti MG, Argade NP. The indole-based subincanadine alkaloids and their biogenetic congeners. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2020; 83:187-223. [PMID: 32098650 DOI: 10.1016/bs.alkal.2019.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The tryptamine-derived polycyclic bridged bioactive indole alkaloids subincanadines A-G were isolated in 2002 by Ohsaki and coworkers from the bark of the Brazilian medicinal plant Aspidosperma subincanum. Kobayashi proposed that subincanadines D-F could be biosynthetically resulting from stemmadenine via two different pathways and, furthermore, that the subincanadines A-C could be biogenetically resulting from subincanadines D and E. Kam and coworkers, in their focused efforts, isolated five indole alkaloids from Malaysian Kopsia arborea species, namely valparicine, apparicine, arboridinine, arborisidine, and arbornamine in combination with subincanadine E. On the basis of structural features, it has been proposed and proved in some examples that subincanadine E is a biogenetic precursor of these five different bioactive indole alkaloids bearing complex structural architectures. All important information on isolation, characterization, bioactivity, probable biogenetic pathways, and more specifically racemic and enantioselective total synthesis of subincanadine alkaloids and their biogenetic congeners are summarized in the present chapter. Special importance is given to the total synthesis and the synthetic strategies intended therein, comprising a set of main reactions.
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21
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Xiong W, Chen Z, Shao Y, Li R, Hu K, Chen J. The synthesis of fluorescent benzofuro[2,3-c]pyridines via palladium-catalyzed heteroaromatic C–H addition and sequential tandem cyclization. Org Chem Front 2020. [DOI: 10.1039/c9qo01491h] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Pd-catalyzed tandem reaction of 2-(cyanomethoxy)chalcones with heteroarenes (such as thiophenes, furans, pyrroles and indoles) for the synthesis of fluorescent benzofuro[2,3-c]pyridines.
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Affiliation(s)
- Wenzhang Xiong
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- China
| | - Zhongyan Chen
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- China
| | - Yinlin Shao
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- China
| | - Renhao Li
- School of Pharmaceutical Sciences
- Wenzhou Medical University
- Wenzhou 325035
- China
| | - Kun Hu
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- China
| | - Jiuxi Chen
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- China
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22
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Wei WM, Dong FQ, Zheng RH, Yang X, Fang WJ, Qin YD. Theoretical study of the mechanism of Pd(II)-catalyzed nucleophilic addition initiated by aminopalladation. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2019.112638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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23
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Schitter T, Stammwitz S, Jones PG, Werz DB. An anti-Carbopalladation/Amination Cascade with Alkynes: Access to Tetrasubstituted Enamines and Pyrroles. Org Lett 2019; 21:9415-9419. [DOI: 10.1021/acs.orglett.9b03625] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Hilgeroth A, Yasrebi K, Suzen S, Hertlein T, Ohlsen K, Lalk M. Antibacterial Evaluation of Novel Substituted Cycloheptaindoles in Staphylococcus and Enterococcus Strains. Med Chem 2019; 15:833-839. [DOI: 10.2174/1573406415666190208170126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 01/16/2019] [Accepted: 01/19/2019] [Indexed: 11/22/2022]
Abstract
Background:
Due to emerging resistances against antibiotics there is a strong need to
find novel antibacterial agents with a novel structure to prevent early resistance developments.
Objective:
Bisindole compounds with antibacterial activities which formally result from the reaction
of an aldehyde with indole motivated to investigate the reaction of a dialdehyde and indole to
give novel structures with potential antibacterial activities.
Methods:
Compounds were yielded by chemical synthesis and purified using column chromatography.
The antibacterial activity was determined as minimal inhibitory growth activity in cultures
of Gram-positive strains of Staphylococcus aureus and Enterococcus species.
Results:
Cyclohepta[2,3-b]indoles have been yielded in a one-step reaction procedure with indole
substitutions at the cycloheptane central core matching a solution for achieving fused novel cycloalkane
indoles with functionalized residues of promising biological activity. So far fused cycloalkane
indoles have not been available in a one-step procedure and moreover, core functionalizations
have been additional challenges. Various indole substitutions have been done to provide a
first set of compounds.
Conclusion:
Substituent-dependent effects have been suggested to influence the antibacterial activity
and first compounds were identified with specific Staphylococcus activities and Enterococcus
species effects towards Enterococcus faecalis as critical pathogens in the hospital with upcoming
resistances against standard antibiotics.
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Affiliation(s)
- Andreas Hilgeroth
- Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle, Germany
| | - Kaveh Yasrebi
- Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle, Germany
| | - Sibel Suzen
- Pharmaceutical Chemistry Department Tandogan, Ankara University, 06100 Ankara, Turkey
| | - Tobias Hertlein
- Institute of Molecular Infection Biology, Julius-Maximilians-University Wuerzburg, Josef-Schneider-Str. 2, 97080 Wuerzbug, Germany
| | - Knut Ohlsen
- Institute of Molecular Infection Biology, Julius-Maximilians-University Wuerzburg, Josef-Schneider-Str. 2, 97080 Wuerzbug, Germany
| | - Michael Lalk
- Institute of Biochemistry, Ernst-Moritz-Arndt University Greifswald, Felix-Hausdorff-Str. 4, 17487 Greifswald, Germany
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25
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Kaithal A, Gracia LL, Camp C, Quadrelli EA, Leitner W. Direct Synthesis of Cycloalkanes from Diols and Secondary Alcohols or Ketones Using a Homogeneous Manganese Catalyst. J Am Chem Soc 2019; 141:17487-17492. [DOI: 10.1021/jacs.9b08832] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akash Kaithal
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringer Weg 2, 52074 Aachen, Germany
- Laboratory of Chemistry, Catalysis, Polymers and Processes, C2P2 UMR 5265, Université de Lyon, Institut de Chimie de Lyon, CNRS, Université Lyon 1, ESCPE Lyon, 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Lisa-Lou Gracia
- Laboratory of Chemistry, Catalysis, Polymers and Processes, C2P2 UMR 5265, Université de Lyon, Institut de Chimie de Lyon, CNRS, Université Lyon 1, ESCPE Lyon, 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Clément Camp
- Laboratory of Chemistry, Catalysis, Polymers and Processes, C2P2 UMR 5265, Université de Lyon, Institut de Chimie de Lyon, CNRS, Université Lyon 1, ESCPE Lyon, 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Elsje Alessandra Quadrelli
- Laboratory of Chemistry, Catalysis, Polymers and Processes, C2P2 UMR 5265, Université de Lyon, Institut de Chimie de Lyon, CNRS, Université Lyon 1, ESCPE Lyon, 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Walter Leitner
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringer Weg 2, 52074 Aachen, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim a.d. Ruhr, Germany
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26
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Pramanik S, Jash M, Mondal D, Chowdhury C. Palladium‐Catalyzed Synthesis of 6
H
‐Dibenzo[
c,h
]chromenes and 5,6‐Dihydrobenzo[
c
]phenanthridines: Application to the Synthesis of Dibenzo[
c,h
]chromene‐6‐ones, Benzo[
c
]phenanthridines, and
Arnottin I. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900833] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Subhendu Pramanik
- Organic & Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road Kolkata- 700032 India
| | - Moumita Jash
- Organic & Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road Kolkata- 700032 India
| | - Debasmita Mondal
- Organic & Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road Kolkata- 700032 India
| | - Chinmay Chowdhury
- Organic & Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road Kolkata- 700032 India
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27
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Affiliation(s)
- Hongjin Xu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - He Huang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Cui Zhao
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Chuanjun Song
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Junbiao Chang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Xinxiang 453007, China
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28
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Jash M, De S, Pramanik S, Chowdhury C. Palladium(II)-Catalyzed Cascade Reactions of Ene–Ynes Tethered to Cyano/Aldehyde: Access to Naphtho[1,2-b]furans and Benzo[g]indoles. J Org Chem 2019; 84:8959-8975. [DOI: 10.1021/acs.joc.9b00861] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Moumita Jash
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Sukanya De
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Subhendu Pramanik
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Chinmay Chowdhury
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
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29
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Okabe A, Harada S, Takeda T, Nishida A. One-Pot Synthesis of Cycloocta[b
]indole Through Formal [5+3] Cycloaddition Using Donor-Acceptor Cyclopropanes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900610] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Akito Okabe
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
| | - Shinji Harada
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
- Molecular Chirality Research Center; Chiba University; 1-33 Yayoi-cho, Inage-ku 263-8522 Chiba Japan
| | - Takuya Takeda
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
| | - Atsushi Nishida
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
- Molecular Chirality Research Center; Chiba University; 1-33 Yayoi-cho, Inage-ku 263-8522 Chiba Japan
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30
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Sun J, Wang K, Wang P, Zheng G, Li X. Rhodium(III)-Catalyzed Oxidative Allylic C–H Indolylation via Nucleophilic Cyclization. Org Lett 2019; 21:4662-4666. [DOI: 10.1021/acs.orglett.9b01553] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jiaqiong Sun
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Kuan Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Peiyuan Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Guangfan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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31
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Vinoth P, Karuppasamy M, Vachan BS, Muthukrishnan I, Maheswari CU, Nagarajan S, Pace V, Roller A, Bhuvanesh N, Sridharan V. Palladium-Catalyzed Regioselective Syn-Chloropalladation-Olefin Insertion-Oxidative Chlorination Cascade: Synthesis of Dichlorinated Tetrahydroquinolines. Org Lett 2019; 21:3465-3469. [PMID: 31001984 DOI: 10.1021/acs.orglett.9b01295] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A palladium catalyzed cascade process involving syn-chloropalladation, intramolecular olefin insertion, and oxidative C-Cl bond formation reactions was demonstrated for the synthesis of dichlorinated tetrahydroquinolines in high yields (up to 93%). The N-propargyl arylamines having a tethered α,β-unsaturated carbonyl moiety underwent a regioselective syn-chloropalladation followed by a Heck-type reaction to deliver the tetrahydroquinoline scaffold. The rare insertion of the second chlorine atom was rationalized comprising a PdII/IV catalytic cycle and oxidative cleavage of the C-PdII bond.
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Affiliation(s)
- Perumal Vinoth
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur - 613401 , Tamil Nadu India
| | - Muthu Karuppasamy
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur - 613401 , Tamil Nadu India
| | - B S Vachan
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur - 613401 , Tamil Nadu India
| | - Isravel Muthukrishnan
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur - 613401 , Tamil Nadu India
| | - C Uma Maheswari
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur - 613401 , Tamil Nadu India
| | - Subbiah Nagarajan
- Department of Chemistry , National Institute of Technology , Warangal, Warangal - 506004 , Telangana , India
| | - Vittorio Pace
- Department of Pharmaceutical Chemistry , University of Vienna , Althanstrasse 14 , A-1090 Vienna , Austria
| | - Alexander Roller
- Department of Pharmaceutical Chemistry , University of Vienna , Althanstrasse 14 , A-1090 Vienna , Austria
| | - Nattamai Bhuvanesh
- Department of Chemistry , Texas A & M University , College Station , Texas 77843 , United States
| | - Vellaisamy Sridharan
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur - 613401 , Tamil Nadu India.,Department of Chemistry and Chemical Sciences , Central University of Jammu , Rahya-Suchani (Bagla), District-Samba, Jammu - 181143 , Jammu and Kashmir , India
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32
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Kalshetti MG, Argade NP. Progress in total synthesis of subincanadine alkaloids and their congeners. Org Biomol Chem 2019; 17:745-761. [PMID: 30574985 DOI: 10.1039/c8ob02565g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A concise account of isolation, characterization, bioactivity, plausible biogenetic pathways, and most importantly, total synthesis of structurally fascinating and biologically imperious indole-based subincanadine alkaloids and their biogenetic congeners are described in the present review with special emphasis on total synthesis and therein an involved set of key reactions.
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Affiliation(s)
- Manojkumar G Kalshetti
- Division of Organic Chemistry, National Chemical Laboratory (CSIR), Pune 411 008, India.
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33
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Gharpure SJ, Vishwakarma DS, Patel RK. TMSOTf mediated ‘5/6-endo-dig’ reductive hydroamination for the stereoselective synthesis of pyrrolidine and piperidine derivatives. Chem Commun (Camb) 2019; 55:6858-6861. [DOI: 10.1039/c9cc03127h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A TMSOTf mediated 5/6-endo-dig reductive hydroamination cascade on internal alkynylamines gave expedient, stereoselective access to pyrrolidine and piperidine derivatives. We also demonstrate that a protecting group on nitrogen has a profound effect on the reactivity as well as diastereoselectivity.
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Affiliation(s)
- Santosh J. Gharpure
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
| | | | - Raj K. Patel
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
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34
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Organocatalytic alkylation of carbohydrate-containing aldehydes with dihydroquinoline N,O-acetals: Absolute configuration of 1,2-dihydroquinolines. Chirality 2018; 31:127-137. [DOI: 10.1002/chir.23036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/23/2018] [Accepted: 10/23/2018] [Indexed: 12/20/2022]
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35
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Sujeevan Reddy G, Babu Nallapati S, Sri Saranya P, Sridhar B, Bhat Giliyaru V, Chandrashekhar Hariharapura R, Gautham Shenoy G, Pal M. Propargylamine (secondary) as a building block in indole synthesis involving ultrasound assisted Pd/Cu-catalyzed coupling-cyclization method: Unexpected formation of (pyrazole)imine derivatives. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.11.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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36
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Chen J, Han X, Lu X. Palladium(II)-Catalyzed Asymmetric Tandem Cyclization of 2-Aminoaryl Alkynones: An Approach to Chiral 1,2,3,4-Tetrahydro-β-carbolines. Org Lett 2018; 20:7470-7473. [DOI: 10.1021/acs.orglett.8b03247] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Junjie Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiuling Han
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiyan Lu
- State Key Laboratory of Organometallic Chemistry, 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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37
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Yao X, Shan X, Zu L. Divergent Coupling of 2-Carbonyl-anilines and Diazo-cyclopentanones: Asymmetric Total Synthesis of (+)-Leucomidine A. Org Lett 2018; 20:6498-6501. [DOI: 10.1021/acs.orglett.8b02823] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaotong Yao
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Xiaosong Shan
- Department of Neurosurgery, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Liansuo Zu
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
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38
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Wang Y, Xie F, Lin B, Cheng M, Liu Y. Synthetic Approaches to Tetracyclic Indolines as Versatile Building Blocks of Diverse Indole Alkaloids. Chemistry 2018; 24:14302-14315. [DOI: 10.1002/chem.201800775] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 03/29/2018] [Indexed: 01/14/2023]
Affiliation(s)
- Yanshi Wang
- Key Laboratory of Structure-Based Drug Design and Discovery; Ministry of Education; Shenyang Pharmaceutical University; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Fukai Xie
- Key Laboratory of Structure-Based Drug Design and Discovery; Ministry of Education; Shenyang Pharmaceutical University; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
- Wuya College of Innovation; Shenyang Pharmaceutical University; Shenyang 110016 P. R. China
| | - Bin Lin
- Key Laboratory of Structure-Based Drug Design and Discovery; Ministry of Education; Shenyang Pharmaceutical University; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Maosheng Cheng
- Key Laboratory of Structure-Based Drug Design and Discovery; Ministry of Education; Shenyang Pharmaceutical University; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Yongxiang Liu
- Key Laboratory of Structure-Based Drug Design and Discovery; Ministry of Education; Shenyang Pharmaceutical University; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
- Wuya College of Innovation; Shenyang Pharmaceutical University; Shenyang 110016 P. R. China
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39
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Zhu Y, Chen F, Zhou Y, Kang Z, Zhang M, Deng H, Song L. A consecutive one-pot two-step approach to trifluoromethylated pyrazolo[4ʹ,3ʹ:5,6]pyrano[2,3-b]indoles promoted by molecular iodine. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.04.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Zhao L, Liao WW. Pd-Catalyzed intramolecular C–H addition to the cyano-group: construction of functionalized 2,3-fused thiophene scaffolds. Org Chem Front 2018. [DOI: 10.1039/c7qo01000a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
An efficient synthesis of 2,3-fused thiophenes was demonstrated through a Pd-catalyzed intramolecular C–H addition of thiophenes bearing cyanohydrin components to nitriles.
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Affiliation(s)
- Lang Zhao
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Wei-Wei Liao
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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41
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Zhou B, Chen W, Yang Y, Yang Y, Deng G, Liang Y. A radical cyclization cascade of 2-alkynylbenzonitriles with sodium arylsulfinates. Org Biomol Chem 2018; 16:7959-7963. [DOI: 10.1039/c8ob02288g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We report an efficient approach to synthesize sulfonated indenones via a radical cascade cyclization of 2-alkynylbenzonitriles with sodium arylsulfinates.
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Affiliation(s)
- Bang Zhou
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
| | - Wenqi Chen
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
| | - Yuzhong Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
| | - Yuan Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
| | - Guobo Deng
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
| | - Yun Liang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- China
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42
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Ma N, Li P, Wang Z, Dai Q, Hu C. Synthesis of indoles from aroyloxycarbamates with alkynes via decarboxylation/cyclization. Org Biomol Chem 2018; 16:2421-2426. [DOI: 10.1039/c8ob00086g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium-catalyzed decarboxylation/cyclization of aroyloxycarbamates with alkynes to construct C–N bonds.
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Affiliation(s)
- Nuannuan Ma
- Key Laboratory of Cluster Science of Ministry of Education
- Beijing Key Laboratory of Photoelectronic/Electrophotonic
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
| | - Peihe Li
- Key Laboratory of Cluster Science of Ministry of Education
- Beijing Key Laboratory of Photoelectronic/Electrophotonic
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
| | - Zheng Wang
- Key Laboratory of Cluster Science of Ministry of Education
- Beijing Key Laboratory of Photoelectronic/Electrophotonic
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
| | - Qipu Dai
- Key Laboratory of Cluster Science of Ministry of Education
- Beijing Key Laboratory of Photoelectronic/Electrophotonic
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
| | - Changwen Hu
- Key Laboratory of Cluster Science of Ministry of Education
- Beijing Key Laboratory of Photoelectronic/Electrophotonic
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
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43
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Wu W, Chen T, Chen J, Han X. Cationic Palladium(II)-Catalyzed Reductive Cyclization of Alkynyl Cyclohexadienones. J Org Chem 2017; 83:1033-1040. [DOI: 10.1021/acs.joc.7b02641] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Weiming Wu
- School
of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Tianyu Chen
- School
of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Junjie Chen
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiuling Han
- State
Key Laboratory of Organometallic Chemistry, 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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44
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Chen J, Han X, Lu X. Enantioselective Synthesis of Tetrahydropyrano[3,4-b
]indoles: Palladium(II)-Catalyzed Aminopalladation/1,4-Addition Sequence. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708900] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Junjie Chen
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xiuling Han
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xiyan Lu
- State Key Laboratory of Organometallic Chemistry; 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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45
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Chen J, Han X, Lu X. Enantioselective Synthesis of Tetrahydropyrano[3,4-b
]indoles: Palladium(II)-Catalyzed Aminopalladation/1,4-Addition Sequence. Angew Chem Int Ed Engl 2017; 56:14698-14701. [DOI: 10.1002/anie.201708900] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Junjie Chen
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xiuling Han
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xiyan Lu
- State Key Laboratory of Organometallic Chemistry; 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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46
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He L, Li X. C S and C N bond formation via Mn-promoted oxidative cascade reaction: Synthesis of C3-sulfenated indoles. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.09.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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47
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Li Y, Li J, Ding H, Li A. Recent advances on the total synthesis of alkaloids in mainland China. Natl Sci Rev 2017. [DOI: 10.1093/nsr/nwx050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
AbstractAlkaloids are a large family of natural products that mostly contain basic nitrogen atoms. Because of their intriguing structures and important functions, they have long been popular targets for synthetic organic chemists. China's chemists have made significant progress in the area of alkaloid synthesis over past decades. In this article, selected total syntheses of alkaloids from research groups in mainland China during the period 2011–16 are highlighted.
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Affiliation(s)
- Yong Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, China
| | - Jian Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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48
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Chen J, Han X, Lu X. Atom-Economic Synthesis of Pentaleno[2,1-b]indoles via Tandem Cyclization of Alkynones Initiated by Aminopalladation. J Org Chem 2017; 82:1977-1985. [DOI: 10.1021/acs.joc.6b02817] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junjie Chen
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiuling Han
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiyan Lu
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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49
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Hu Y, Xie Y, Shen Z, Huang H. Palladium-Catalyzed Ring-Forming Aminoalkenylation of Alkenes with Aldehydes Initiated by Intramolecular Aminopalladation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611853] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yue Hu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Yinjun Xie
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P. R. China
| | - Zhiqiang Shen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P. R. China
| | - Hanmin Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P. R. China
- Department of Chemistry; University of Science and Technology of China; Hefei 230026 P. R. China
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50
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Hu Y, Xie Y, Shen Z, Huang H. Palladium-Catalyzed Ring-Forming Aminoalkenylation of Alkenes with Aldehydes Initiated by Intramolecular Aminopalladation. Angew Chem Int Ed Engl 2017; 56:2473-2477. [DOI: 10.1002/anie.201611853] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 12/28/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Yue Hu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Yinjun Xie
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P. R. China
| | - Zhiqiang Shen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P. R. China
| | - Hanmin Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P. R. China
- Department of Chemistry; University of Science and Technology of China; Hefei 230026 P. R. China
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