1
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Dočekal V, Niderer Y, Kurčina A, Císařová I, Veselý J. Regio- and Enantioselective N-Heterocyclic Carbene-Catalyzed Annulation of Aminoindoles Initiated by Friedel-Crafts Alkylation. Org Lett 2024; 26:6993-6998. [PMID: 39115978 PMCID: PMC11348421 DOI: 10.1021/acs.orglett.4c02434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 07/31/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
Chiral indoles annulated on the benzene ring are unique and significant in natural and medicinal compounds. However, accessing these enantioenriched molecules has often been overlooked. The present study introduces an organocatalytic protocol to access these compounds efficiently, demonstrated by substrate scope, functional group tolerance, and using only 1 mol % of a chiral conjugated acid catalyst. Additionally, the study explores regioselectivity, gram-scale reactions, and follow-up transformations, underscoring the method's potential.
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Affiliation(s)
- Vojtěch Dočekal
- Department
of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Yaroslava Niderer
- Department
of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
- Faculty
of Sciences, Aix-Marseille University, 52 Av. Escadrille Normandie Niemen, 13013 Marseille, France
| | - Adam Kurčina
- Department
of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Ivana Císařová
- Department
of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Jan Veselý
- Department
of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
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2
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Rodríguez-Franco C, Ros A, Merino P, Fernández R, Lassaletta JM, Hornillos V. Dynamic Kinetic Resolution of Indole-Based Sulfenylated Heterobiaryls by Rhodium-Catalyzed Atroposelective Reductive Aldol Reaction. ACS Catal 2023; 13:12134-12141. [PMID: 37745194 PMCID: PMC10513111 DOI: 10.1021/acscatal.3c03422] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/26/2023] [Indexed: 09/26/2023]
Abstract
A highly enantio- and diastereoselective dynamic kinetic resolution (DKR) of configurationally labile 3-aryl indole-2-carbaldehydes is described. The DKR proceeds via a Rh-catalyzed intermolecular asymmetric reductive aldol reaction with acrylate esters, with simultaneous generation of three stereogenic elements. The strategy relies on the labilization of the stereogenic axis that takes place thanks to a transient Lewis acid-base interaction (LABI) between the formyl group and a thioether moiety strategically located at the ortho' position. The atropisomeric indole products present a high degree of functionalization and can be further converted to a series of axially chiral derivatives, thereby expanding their potential application in drug discovery and asymmetric catalysis.
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Affiliation(s)
- Carlos Rodríguez-Franco
- Instituto
de Investigaciones Químicas (CSIC-US) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Abel Ros
- Instituto
de Investigaciones Químicas (CSIC-US) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Pedro Merino
- Instituto
de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Rosario Fernández
- Departamento
de Química Orgánica, Universidad
de Sevilla and Centro de Innovación en Química Avanzada
(ORFEO−CINQA), C/Prof. García González, 1, 41012 Sevilla, Spain
| | - José M. Lassaletta
- Instituto
de Investigaciones Químicas (CSIC-US) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Valentín Hornillos
- Instituto
de Investigaciones Químicas (CSIC-US) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
- Departamento
de Química Orgánica, Universidad
de Sevilla and Centro de Innovación en Química Avanzada
(ORFEO−CINQA), C/Prof. García González, 1, 41012 Sevilla, Spain
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3
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Liu B, Xing P. Hydrogen Bonded Foldamers with Axial Chirality: Chiroptical Properties and Applications. Chemistry 2023; 29:e202202665. [PMID: 36281580 DOI: 10.1002/chem.202202665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 11/07/2022]
Abstract
Folding phenomenon refers to the formation of a specific conformation widely featured by the intramolecular interactions, which broadly exist in biomacromolecules, and are closely related to their structures and functions. A variety of oligomeric folded molecules have been designed and synthesized, namely "foldamer", exhibiting potentials in pharmaceutical and catalysis. Molecular folding is a promising strategy to transfer chirality from substituents to the whole skeleton, when chirality transfer, amplification, evolution, and other behaviors could be achieved. Investigating chirality using foldamer model deepens the understanding of the structure-function correlation in biomacromolecules and expands the molecular toolbox towards chiroptical and asymmetrical chemistry. Substitutes with abundant hydrogen bonding sites conjugated to a rotatable aryl group afford a parallel β-sheet-like conformation, which enables the emergence and manipulation of axial chirality. This concept aims to give a brief introduction and summary of the hydrogen bonded foldamers with anchored axial chirality, by taking some recent cases as examples. Design principles, control over axial chirality and applications are also reviewed.
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Affiliation(s)
- Bingyu Liu
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Pengyao Xing
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
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4
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Chen Z, He Q, Guo H, Fan R. Anodic dearomatization of 2-alkynylanilines for the synthesis of multi-functionalized indoles. Chem Commun (Camb) 2022; 58:6797-6800. [PMID: 35611853 DOI: 10.1039/d2cc01766k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An anodic oxidative dearomatization reaction of 2-alkynylanilines was developed. The formed dearomatized compounds were used as versatile precursors in the synthesis of a variety of benzenoid ring multi-functionalized indoles through simple conversions.
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Affiliation(s)
- Zhuowen Chen
- Academy for Engineering and Technology, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Qiuqin He
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Hao Guo
- Academy for Engineering and Technology, Fudan University, 220 Handan Road, Shanghai 200433, China.,Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Renhua Fan
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
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5
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Placidi S, D'Intignano TM, Salvio R. Preparation of Chiral
DMAP
Derivatives and Investigation on Their Enantioselective Catalytic Activity in Benzazetidine Synthesis and Kinetic Resolutions of Alcohols. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4495] [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)
- Simone Placidi
- Dipartimento di Chimica Sapienza Università di Roma, P.le Aldo Moro 5 Roma Italy
| | | | - Riccardo Salvio
- Dipartimento di Scienze e Tecnologie Chimiche Università “Tor Vergata”, Via della Ricerca Scientifica 1 Roma Italy
- ISB ‐ CNR Sezione Meccanismi di Reazione Università La Sapienza Roma
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6
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Mane KD, Mukherjee A, Das GK, Suryavanshi G. Acetic Acid-Catalyzed Regioselective C(sp 2)-H Bond Functionalization of Indolizines: Concomitant Involvement of Synthetic and Theoretical Studies. J Org Chem 2022; 87:5097-5112. [PMID: 35337186 DOI: 10.1021/acs.joc.1c03019] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An atom economical and environmentally benign protocol has been developed for the regioselective C(sp2)-H bond functionalization of indolizines. The acetic acid-catalyzed cross-coupling reaction proceeds under metal-free conditions, producing a wide range of synthetically useful indolizine derivatives. The present protocol showed good functional group tolerance and broad substrate scope in good to excellent yields. Quantum mechanical investigation using density functional theory (DFT) has played a crucial role in understanding that acetic acid is the key player in determining the actual pathway as the catalyst and its ultrafast nature. Different pathways involving inter- and intramolecular proton transfer, with or without acetic acid, were investigated. Calculated results revealed that a proton shuttle mechanism is involved for the least energetic, most favorable acetic acid-catalyzed pathway. Furthermore, regioselectivity has also been explained theoretically.
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Affiliation(s)
- Kishor D Mane
- Chemical Engineering & Process Development Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Anirban Mukherjee
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India.,The Institute of Scientific and Industrial Research (ISIR), Osaka University, Ibaraki-shi, Osaka 567- 0047, Japan
| | - Gourab Kanti Das
- Department of Chemistry, Institute of Science (Siksha Bhavana), Visva-Bharati, Santiniketan 731235, West Bengal, India
| | - Gurunath Suryavanshi
- Chemical Engineering & Process Development Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
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7
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Song X, Fan Y, Zhu Z, Ni Q. Chiral Phosphoric Acid-Catalyzed Asymmetric Arylation of Indolizines: Atroposelective Access to Axially Chiral 3-Arylindolizines. Org Lett 2022; 24:2315-2320. [PMID: 35297627 DOI: 10.1021/acs.orglett.2c00461] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report herein a highly straightforward strategy for the synthesis of a new axially chiral 3-arylindolizine scaffold via organocatalytic asymmetric arylation reactions of indolizines and p-quinone esters. Using the chiral phosphoric acid catalyst, a series of axially chiral 3-arylindolizines were accessed in good to excellent yields and atropo-enantioselectivities. This approach features a broad substrate scope, mild reaction conditions, good scalability, and facile derivatization. Moreover, preliminary investigations based on nonlinear effects and a thermal racemization study demonstrated the intrinsic pathway for the formation of axial chirality and its potential utility.
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Affiliation(s)
- Xiaoxiao Song
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Yanjun Fan
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Zhiming Zhu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Qijian Ni
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
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8
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Zhang JL, Ma R, Zhao HH, Xu PF. Enantioselective construction of spiro-tetrahydroquinoline scaffolds through asymmetric catalytic cascade reactions. Chem Commun (Camb) 2022; 58:3493-3496. [PMID: 35191451 DOI: 10.1039/d2cc00502f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
An efficient and concise strategy has been successfully developed for merging spiro-tetrahydroquinoline with spiro-benzofuranone into a single new skeleton through asymmetric catalytic cascade reactions catalyzed by quinine-derived chiral bifunctional squaramide organocatalysts. In this approach, differently substituted spiro-tetrahydroquinoline derivatives were smoothly obtained with high yields, and excellent diastereoselectivities and enantioselectivities (up to 99% yield, up to >20 : 1 dr, up to >99% ee, 40 examples) under mild reaction conditions.
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Affiliation(s)
- Jia-Lu Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Rui Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Huan-Huan Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China. .,State Key Laboratory of Veterinary Etiological Biology, College of Veterinary Medicine, Lanzhou University, Lanzhou 730000, P. R. China
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9
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Jia S, Qin W, Wang P, Yan H. Organocatalytic atroposelective construction of axially chiral nonsymmetric biaryltriols and their applications in asymmetric synthesis and heavy metal ion detection. Org Chem Front 2022. [DOI: 10.1039/d1qo01821c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organocatalytic atroposelective construction of axially chiral nonsymmetric biaryltriols and their applications in asymmetric synthesis and heavy metal ion detection.
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Affiliation(s)
- Shiqi Jia
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing 401331, P. R. China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing 401331, P. R. China
| | - Pengfei Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing 401331, P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing 401331, P. R. China
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10
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Bashir MA, Wei J, Wang H, Zhong F, Zhai H. Recent advances in catalytic oxidative reactions of phenols and naphthalenols. Org Chem Front 2022. [DOI: 10.1039/d2qo00758d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This critical review aims to provide an overview of oxidative phenol and naphthalenol transformations in nature and synthetic chemistry.
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Affiliation(s)
- Muhammad Adnan Bashir
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Jian Wei
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Huifei Wang
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Fangrui Zhong
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Hongbin Zhai
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China
- Shenzhen Bay Laboratory, Shenzhen 518055, China
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11
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Liang H, Zhu G, Pu X, Qiu L. Copper-Catalyzed Enantioselective C-H Arylation between 2-Arylindoles and Hypervalent Iodine Reagents. Org Lett 2021; 23:9246-9250. [PMID: 34806895 DOI: 10.1021/acs.orglett.1c03596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The copper-catalyzed enantioselective C-H arylation between 2-arylindoles and hypervalent iodine reagents has been successfully developed, which provides a convenient and economical route to the highly atroposelective synthesis of axially chiral indole derivatives with a 2-aryl structure (up to 99% ee). Density functional theory calculations and wave function analysis show that the key "sandwich" intermediate leads to high enantioselectivity of the reaction.
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Affiliation(s)
- Hao Liang
- School of Chemistry, Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery, Sun Yat-Sen University, Guangzhou 510006, China
| | - Guoxun Zhu
- Electronic/IT-related Chemicals Lab, Guangdong Institute of Analysis, Guangzhou 510070, China
| | - Xiaoyun Pu
- School of Chemistry, Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery, Sun Yat-Sen University, Guangzhou 510006, China
| | - Liqin Qiu
- School of Chemistry, Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery, Sun Yat-Sen University, Guangzhou 510006, China
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12
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Xu WL, Zhao WM, Zhang RX, Chen J, Zhou L. Organocatalytic cycloaddition-elimination cascade for atroposelective construction of heterobiaryls. Chem Sci 2021; 12:14920-14926. [PMID: 34820108 PMCID: PMC8597853 DOI: 10.1039/d1sc05161j] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/28/2021] [Indexed: 12/19/2022] Open
Abstract
The first chiral phosphoric acid (CPA) catalyzed cycloaddition–elimination cascade reaction of 2-naphthol- and phenol-derived enecarbamates with azonaphthalenes has been established, providing a highly atroposelective route to an array of axially chiral aryl-C3-benzoindoles in excellent yields with excellent enantioselectivities. The success of this strategy derives from the stepwise process involving CPA-catalyzed asymmetric formal [3 + 2] cycloaddition and subsequent central-to-axial chirality conversion by elimination of a carbamate. In addition, the practicality of this reaction had been verified by varieties of transformations towards functionalized atropisomers. An organocatalytic asymmetric cycloaddition–elimination cascade reaction of aryl enecarbamates with azonaphthalenes has been developed to access axially chiral heterobiaryls in excellent yields and enantioselectivities.![]()
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Affiliation(s)
- Wen-Lei Xu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an 710102 P. R. China
| | - Wei-Ming Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an 710102 P. R. China
| | - Ru-Xia Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an 710102 P. R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an 710102 P. R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an 710102 P. R. China
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13
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Wang CS, Wei L, Fu C, Wang XH, Wang CJ. Asymmetric Synthesis of Axially Chiral Naphthyl-C3-indoles via a Palladium-Catalyzed Cacchi Reaction. Org Lett 2021; 23:7401-7406. [PMID: 34533962 DOI: 10.1021/acs.orglett.1c02574] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Atropoisomeric biaryl motifs are widely found in natural products and bioactive compounds as well as chiral catalysts and ligands. Various efficient approaches have been disclosed for the construction of chiral six-six biaryl skeletons. In contrast, the enantioselective synthesis of axially chiral arylindoles through the strategy of de novo construction, other than the asymmetric functionalization of indoles, remain a challenging task. Herein we report an efficient Pd(0)/(S)-Segphos-catalyzed atroposelective Cacchi reaction of 2-alkynylanilines with sterically congested naphthyl halides, which afforded an array of naphthyl-C3-indoles in high yields with good to excellent atroposelectivities. The addition of water and the modulation of the manipulation procedure by premixing the palladium complex and the naphthyl halide were the keys to success. The conformational stability of the obtained axially chiral naphthyl-C3-indole containing a synthetically more-valuable free NH moiety is revealed through kinetic experiments.
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Affiliation(s)
- Cong-Shuai Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Liang Wei
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Cong Fu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xin-Heng Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Chun-Jiang Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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14
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Li X, Zhao L, Qi Z, Li X. Construction of Atropisomeric 3-Arylindoles via Enantioselective Cacchi Reaction. Org Lett 2021; 23:5901-5905. [PMID: 34236878 DOI: 10.1021/acs.orglett.1c02012] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The de novo construction of axially chiral 3-arylindoles bearing a C(3)-C(aryl) chiral axis has been realized by Pd-catalyzed enantioselective Cacchi reaction between aryl bromides and o-alkynylanilines. The reaction proceeded under mild conditions in high yields and excellent enantioselectivities.
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Affiliation(s)
- Xiaojiao Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an 710062, China
| | - Liujie Zhao
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an 710062, China
| | - Zisong Qi
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an 710062, China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an 710062, China
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15
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Kim A, Kim A, Park S, Kim S, Jo H, Ok KM, Lee SK, Song J, Kwon Y. Catalytic and Enantioselective Control of the C-N Stereogenic Axis via the Pictet-Spengler Reaction. Angew Chem Int Ed Engl 2021; 60:12279-12283. [PMID: 33651459 DOI: 10.1002/anie.202100363] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 02/16/2021] [Indexed: 12/11/2022]
Abstract
An unprecedented example of a chiral phosphoric acid-catalyzed atroposelective Pictet-Spengler reaction of N-arylindoles is reported. Highly enantioenriched N-aryl-tetrahydro-β-carbolines with C-N bond axial chirality are obtained via dynamic kinetic resolution. The hydrogen bond donor introduced on the bottom aromatic ring, forming a secondary interaction with the phosphoryl oxygen, is essential to achieving high enantioselectivity. A wide variety of substituents are tolerable with this transformation to provide up to 98 % ee. The application of electron-withdrawing group-substituted benzaldehydes enables the control of both axial and point stereogenicity. Biological evaluation of this new and unique scaffold shows promising antiproliferative activity and emphasizes the significance of atroposelective synthesis.
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Affiliation(s)
- Ahreum Kim
- Department of Chemistry, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, Republic of Korea
| | - Aram Kim
- Department of Chemistry, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, Republic of Korea
| | - Sunjung Park
- Department of Chemistry, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, Republic of Korea
| | - Sangji Kim
- Department of Chemistry, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, Republic of Korea
| | - Hongil Jo
- Department of Chemistry, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, Republic of Korea
| | - Kang Min Ok
- Department of Chemistry, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, Republic of Korea
| | - Sang Kook Lee
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Jayoung Song
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Yongseok Kwon
- Department of Chemistry, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, Republic of Korea
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16
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Da B, Xiang S, Li S, Tan B. Chiral Phosphoric Acid Catalyzed Asymmetric Synthesis of Axially Chiral Compounds
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000751] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Bing‐Chao Da
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
| | - Shao‐Hua Xiang
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
| | - Shaoyu Li
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
| | - Bin Tan
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
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17
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Kim A, Kim A, Park S, Kim S, Jo H, Ok KM, Lee SK, Song J, Kwon Y. Catalytic and Enantioselective Control of the C–N Stereogenic Axis via the Pictet–Spengler Reaction. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100363] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ahreum Kim
- Department of Chemistry Sogang University 35 Baekbeom-ro, Mapo-gu Seoul Republic of Korea
| | - Aram Kim
- Department of Chemistry Sogang University 35 Baekbeom-ro, Mapo-gu Seoul Republic of Korea
| | - Sunjung Park
- Department of Chemistry Sogang University 35 Baekbeom-ro, Mapo-gu Seoul Republic of Korea
| | - Sangji Kim
- Department of Chemistry Sogang University 35 Baekbeom-ro, Mapo-gu Seoul Republic of Korea
| | - Hongil Jo
- Department of Chemistry Sogang University 35 Baekbeom-ro, Mapo-gu Seoul Republic of Korea
| | - Kang Min Ok
- Department of Chemistry Sogang University 35 Baekbeom-ro, Mapo-gu Seoul Republic of Korea
| | - Sang Kook Lee
- College of Pharmacy Seoul National University 1 Gwanak-ro Gwanak-gu Seoul Republic of Korea
| | - Jayoung Song
- College of Pharmacy Seoul National University 1 Gwanak-ro Gwanak-gu Seoul Republic of Korea
| | - Yongseok Kwon
- Department of Chemistry Sogang University 35 Baekbeom-ro, Mapo-gu Seoul Republic of Korea
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18
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Zhang JL, Liu JY, Xu GQ, Luo YC, Lu H, Tan CY, Hu XQ, Xu PF. One-Pot Enantioselective Construction of Polycyclic Tetrahydroquinoline Scaffolds through Asymmetric Organo/Photoredox Catalysis via Triple-Reaction Sequence. Org Lett 2021; 23:3287-3293. [DOI: 10.1021/acs.orglett.1c00712] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jia-Lu Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Jin-Yu Liu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Guo-Qiang Xu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yong-Chun Luo
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Hong Lu
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education, National Demonstration Center for Experimental Chemistry Education (Northwest University), College of Chemistry & Materials Science, Northwest University, Xi’an 710127, China
| | - Chang-Yin Tan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Xiu-Qin Hu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
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19
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Cheng JK, Xiang SH, Li S, Ye L, Tan B. Recent Advances in Catalytic Asymmetric Construction of Atropisomers. Chem Rev 2021; 121:4805-4902. [PMID: 33775097 DOI: 10.1021/acs.chemrev.0c01306] [Citation(s) in RCA: 388] [Impact Index Per Article: 129.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Atropisomerism is a stereochemical behavior portrayed by three-dimensional molecules that bear rotationally restricted σ bond. Akin to the well-represented point-chiral molecules, atropisomerically chiral compounds are finding increasing utilities in many disciplines where molecular asymmetry is influential. This provides steady demand on atroposelective synthesis, where numerous synthetic pursuits have been rewarded with conceptually novel and streamlined methods while expanding the structural diversity of atropisomers. This review summarizes key achievements in stereoselective preparation of biaryl, heterobiaryl, and nonbiaryl atropisomers documented between 2015 and 2020. Emphasis is placed on the synthetic strategies for each structural class, while examples are cited to illustrate the potential applications of the accessed atropochiral targets.
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Affiliation(s)
- Jun Kee Cheng
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shao-Hua Xiang
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, China.,Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shaoyu Li
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, China.,Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
| | - Liu Ye
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, China.,Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin Tan
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, China
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20
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Sun L, Chen H, Liu B, Chang J, Kong L, Wang F, Lan Y, Li X. Rhodium‐Catalyzed Atroposelective Construction of Indoles via C−H Bond Activation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012932] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Lincong Sun
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Haohua Chen
- School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 China
| | - Bingxian Liu
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Junbiao Chang
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Lingheng Kong
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Fen Wang
- School of Chemistry and Chemical Engineering Shaanxi Normal University (SNNU) Xi'an 710062 China
| | - Yu Lan
- School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
- School of Chemistry and Chemical Engineering Shaanxi Normal University (SNNU) Xi'an 710062 China
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21
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Sun L, Chen H, Liu B, Chang J, Kong L, Wang F, Lan Y, Li X. Rhodium‐Catalyzed Atroposelective Construction of Indoles via C−H Bond Activation. Angew Chem Int Ed Engl 2021; 60:8391-8395. [DOI: 10.1002/anie.202012932] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/09/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Lincong Sun
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Haohua Chen
- School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 China
| | - Bingxian Liu
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Junbiao Chang
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Lingheng Kong
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Fen Wang
- School of Chemistry and Chemical Engineering Shaanxi Normal University (SNNU) Xi'an 710062 China
| | - Yu Lan
- School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
- School of Chemistry and Chemical Engineering Shaanxi Normal University (SNNU) Xi'an 710062 China
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22
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Xie G, Zhao Y, Cai C, Deng GJ, Gong H. Palladium-Catalyzed Direct and Specific C-7 Acylation of Indolines with 1,2-Diketones. Org Lett 2021; 23:410-415. [PMID: 33400544 DOI: 10.1021/acs.orglett.0c03922] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The indole scaffold is a ubiquitous and useful substructure, and extensive investigations have been conducted to construct the indole framework and/or realize indole modification. Nevertheless, the direct selective functionalization on the benzenoid core must overcome the high activity of the C-3 position and still remains highly challenging. Herein, a palladium-catalyzed direct and specific C-7 acylation of indolines in the presence of an easily removed directing group was developed. This strategy usually is considered as a practical strategy for the preparation of acylated indoles because indoline can be easily converted to indole under oxidation conditions. In particular, our strategy greatly improved the alkacylation yield of indolines for which only an unsatisfactory yield could be achieved in the previous studies. Furthermore, the reaction can be scaled up to gram level in the standard reaction conditions with a much lower palladium loading (1 mol %).
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Affiliation(s)
- Guilin Xie
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University; The Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Yuhan Zhao
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University; The Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Changqun Cai
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University; The Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University; The Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Hang Gong
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University; The Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education College of Chemistry, Xiangtan University, Xiangtan 411105, China
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23
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Bhattacharjee P, Bora U. Organocatalytic dimensions to the C–H functionalization of the carbocyclic core in indoles: a review update. Org Chem Front 2021. [DOI: 10.1039/d0qo01466d] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A review highlighting important research findings in remote C–H activation processes using effectual organocatalytic perspectives. The challenging indole carbocyclic ring positions were successfully accessed with proper regio- and stereocontrols.
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Affiliation(s)
| | - Utpal Bora
- Department of Chemical Sciences
- Tezpur University
- Tezpur
- India
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24
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Zhang W, Wei S, Wang W, Qu J, Wang B. Catalytic asymmetric construction of C-4 alkenyl substituted pyrazolone derivatives bearing multiple stereoelements. Chem Commun (Camb) 2021; 57:6550-6553. [DOI: 10.1039/d1cc01123e] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An organocatalytic asymmetric process was reported for the sterically precise construction of C-4 alkenyl substituted pyrazolone derivatives bearing multiple stereoelements.
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Affiliation(s)
- Wande Zhang
- State Key Laboratory of Fine Chemicals
- Department of Pharmaceutical Sciences
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
| | - Shiqiang Wei
- State Key Laboratory of Fine Chemicals
- Department of Pharmaceutical Sciences
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
| | - Wenyao Wang
- State Key Laboratory of Fine Chemicals
- Department of Pharmaceutical Sciences
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals
- Department of Pharmaceutical Sciences
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals
- Department of Pharmaceutical Sciences
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
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25
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Li T, Liu S, Tan W, Shi F. Catalytic Asymmetric Construction of Axially Chiral Indole‐Based Frameworks: An Emerging Area. Chemistry 2020; 26:15779-15792. [DOI: 10.1002/chem.202001397] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/27/2020] [Indexed: 01/28/2023]
Affiliation(s)
- Tian‐Zhen Li
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Si‐Jia Liu
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Wei Tan
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Feng Shi
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
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26
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Dong X, Tang Z, Ye L, Shi Z, Zhao Z, Li X. Stereoselective Synthesis of Dihydrofuranoindoles via the Friedel-Crafts Alkylation/Annulation Cascade Process. J Org Chem 2020; 85:11607-11617. [PMID: 32830980 DOI: 10.1021/acs.joc.0c00444] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A stereoselective annulation protocol was developed to construct dihydrofuranoindoles from readily available starting materials. In the presence of a bifunctional squaramide, the Friedel-Crafts alkylation/annulation cascade process occurred smoothly to provide dihydrofuranoindoles in 26-95% isolated yields exclusively as trans-diastereomers (38-99% ee). This catalytic protocol was compatible with a range of structurally distinct hydroxyindoles bearing the hydroxyl group at different positions, providing four kinds of dihydrofuranoindoles. Moreover, gram-scale synthesis and further synthetic manipulation of the product were also demonstrated.
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Affiliation(s)
- Xiaodi Dong
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Zhishun Tang
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Ling Ye
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Zhichuan Shi
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Zhigang Zhao
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Xuefeng Li
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
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27
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Jillella R, Raju S, Hsiao HC, Hsu DS, Chuang SC. Pd-Catalyzed Redox-Neutral C–N Coupling Reaction of Iminoquinones with Electron-Deficient Alkenes without External Oxidants: Access of Tertiary ( E)-Enamines and Application to the Synthesis of Indoles and Quinolin-4-ones. Org Lett 2020; 22:6252-6256. [DOI: 10.1021/acs.orglett.0c01929] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Raveendra Jillella
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Selvam Raju
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Huan-Chang Hsiao
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Day-Shin Hsu
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chiayi 62102, Taiwan
| | - Shih-Ching Chuang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
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28
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Xi CC, Zhao XJ, Tian JM, Chen ZM, Zhang K, Zhang FM, Tu YQ, Dong JW. Atroposelective Synthesis of Axially Chiral 3-Arylindoles by Copper-Catalyzed Asymmetric Cross-Coupling of Indoles with Quinones and Naphthoquinones. Org Lett 2020; 22:4995-5000. [PMID: 32610934 DOI: 10.1021/acs.orglett.0c01558] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A copper-catalyzed direct asymmetric coupling of C2 sterically-hindering-group-substituted indoles with quinone and naphthoquinone esters was developed by using the spirocyclic pyrrolidine oxazoline (SPDO) ligand, which was accomplished by metal catalysis for the first time. Diverse structures of axially chiral 3-arylindoles were obtained with good to high enantioselectivities in good to high yields. This protocol can be expanded to implement β-coupling with naphthoquinone esters, providing an alternative way to prepare β-substituted derivatives of both naphthols and naphthoquinones.
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Affiliation(s)
- Chao-Chao Xi
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiao-Jing Zhao
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jin-Miao Tian
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Zhi-Min Chen
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Kun Zhang
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.,School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jia-Wei Dong
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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29
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Corti V, Bertuzzi G. Organocatalytic Asymmetric Methodologies towards the Synthesis of Atropisomeric N-Heterocycles. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707814] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A perspective on the literature dealing with the organocatalytic asymmetric preparation of axially chiral N-heterocycles is provided. A particular focus is devoted to rationalize the synthetic strategies employed in each case. Moreover, specific classes of organocatalysts are shown to stand out as privileged motives for the stereoselective preparation of such synthetically challenging molecular architectures. Finally, an overview of the main trends in the field is given.1 Introduction2 Five-Membered Rings2.1 Arylation2.2 Dynamic Kinetic Resolution2.3 Ring Construction2.4 Central-to-Axial Chirality Conversion and Chirality Transfer2.5 Desymmetrization3 Six-Membered Rings3.1 Desymmetrization3.2 (Dynamic) Kinetic Resolution3.3 Ring Construction3.4 Central-to-Axial Chirality Conversion4 Conclusion
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30
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Study on the hydrogen bonding of two novel boratopolyoxovanadates supramolecular compounds with [V12B18O60]14− cage by spectroscopy. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Li Y, Meng L, Sun C, Zeng Y. Organocatalysis by Halogen, Chalcogen, and Pnictogen Bond Donors in Halide Abstraction Reactions: An Alternative to Hydrogen Bond-Based Catalysis. J Phys Chem A 2020; 124:3815-3824. [DOI: 10.1021/acs.jpca.0c01060] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ying Li
- Institute of Computational Quantum Chemistry, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, P.R. China
| | - Lingpeng Meng
- Institute of Computational Quantum Chemistry, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, P.R. China
| | - Cuihong Sun
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang, 050035, P.R. China
| | - Yanli Zeng
- Institute of Computational Quantum Chemistry, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, P.R. China
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32
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Mancinelli M, Bencivenni G, Pecorari D, Mazzanti A. Stereochemistry and Recent Applications of Axially Chiral Organic Molecules. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901918] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Michele Mancinelli
- Department of Industrial Chemistry “Toso Montanari” University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Giorgio Bencivenni
- Department of Industrial Chemistry “Toso Montanari” University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Daniel Pecorari
- Department of Industrial Chemistry “Toso Montanari” University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Andrea Mazzanti
- Department of Industrial Chemistry “Toso Montanari” University of Bologna Viale Risorgimento 4 40136 Bologna Italy
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33
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Koshino S, Takikawa A, Ishida K, Taniguchi T, Monde K, Kwon E, Umemiya S, Hayashi Y. Inversion of the Axial Information during Oxidative Aromatization in the Synthesis of Axially Chiral Biaryls with Organocatalysis as a Key Step. Chemistry 2020; 26:4524-4530. [DOI: 10.1002/chem.201905814] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Seitaro Koshino
- Department of ChemistryGraduate School of ScienceTohoku University Sendai 980-8578 Japan
| | - Akira Takikawa
- Department of ChemistryGraduate School of ScienceTohoku University Sendai 980-8578 Japan
| | - Keiichi Ishida
- Department of ChemistryGraduate School of ScienceTohoku University Sendai 980-8578 Japan
| | - Tohru Taniguchi
- Frontier Research Center of Advanced Material andLife Science Faculty of Advanced Life ScienceHokkaido University Sapporo 060-0810 Japan
| | - Kenji Monde
- Frontier Research Center of Advanced Material andLife Science Faculty of Advanced Life ScienceHokkaido University Sapporo 060-0810 Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant MoleculesGraduate School of Science Sendai 980-8578 Japan
| | - Shigenobu Umemiya
- Department of ChemistryGraduate School of ScienceTohoku University Sendai 980-8578 Japan
| | - Yujiro Hayashi
- Department of ChemistryGraduate School of ScienceTohoku University Sendai 980-8578 Japan
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34
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Kasama K, Aoyama H, Akai S. Enantiodivergent Synthesis of Axially Chiral Biphenyls from σ-Symmetric 1,1'-Biphenyl-2,6-diol Derivatives by Single Lipase-Catalyzed Acylative and Hydrolytic Desymmetrization. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901583] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kengo Kasama
- Graduate School of Pharmaceutical Sciences; Osaka University; 1-6, Yamadaoka, Suita 565-0871 Osaka Japan
| | - Hiroshi Aoyama
- Graduate School of Pharmaceutical Sciences; Osaka University; 1-6, Yamadaoka, Suita 565-0871 Osaka Japan
| | - Shuji Akai
- Graduate School of Pharmaceutical Sciences; Osaka University; 1-6, Yamadaoka, Suita 565-0871 Osaka Japan
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35
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Duan K, Shi H, Wang LX, Li SS, Xu L, Xiao J. Hydride transfer enabled switchable dearomatization of indoles in the carbocyclic ring and the pyrrole ring. Org Chem Front 2020. [DOI: 10.1039/d0qo00658k] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hydride transfer enabled the first success of the regioselective dearomatization of indoles in the carbocyclic ring and the pyrrole ring, which was induced by ortho-quinone methides and vinylogous iminium intermediates, respectively.
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Affiliation(s)
- Kang Duan
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Hongjin Shi
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Lin-Xuan Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Shuai-Shuai Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Lubin Xu
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Jian Xiao
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
- School of Marine Science and Engineering
| |
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