1
|
Waser P, Faghtmann J, Gil-Ordóñez M, Kristensen A, Svenningsen EB, Poulsen TB, Jørgensen KA. Enantioselective Synthesis of α-Quaternary Isochromanes by Oxidative Aminocatalysis and Gold Catalysis. Chemistry 2024; 30:e202401354. [PMID: 38629389 DOI: 10.1002/chem.202401354] [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: 04/05/2024] [Indexed: 05/24/2024]
Abstract
A novel strategy that combines oxidative aminocatalysis and gold catalysis allows the preparation of chiral α-quaternary isochromanes, a motif that is prevalent in natural products and synthetic bioactive compounds. In the first step, α-branched aldehydes and propargylic alcohols are transformed into α-quaternary ethers with excellent optical purities (>90 % ee) via oxidative umpolung with DDQ and an amino acid-derived primary amine catalyst. Subsequent gold(I)-catalyzed intramolecular hydroarylation affords the isochromane products with retention of the quaternary stereocenter. A second approach explores the use of allylic alcohols as reaction partners for the oxidative coupling to furnish α-quaternary ethers with generally lower enantiopurities. Stereoretentive cyclization to isochromane products is achieved via intramolecular Friedel-Crafts type alkylation with allylic acetates as a reactive handle. A number of synthetic elaborations and a biological study on these α-quaternary isochromanes highlight the potential applicability of the presented method.
Collapse
Affiliation(s)
- Philipp Waser
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Jonas Faghtmann
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Marta Gil-Ordóñez
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Anne Kristensen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Esben B Svenningsen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Thomas B Poulsen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Karl Anker Jørgensen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| |
Collapse
|
2
|
Wang X, Zhong J, Luo M, Zeng X. Cr-Catalyzed Intramolecular Arylative Cross-Coupling of Unactivated C-H Bonds with C-Halide Bonds. Org Lett 2024; 26:4093-4097. [PMID: 38717255 DOI: 10.1021/acs.orglett.4c01145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
We report here a chromium-catalyzed intramolecular arylation of unactivated C-H bonds with C-halide bonds under mild conditions. This reaction was enabled by using a low-cost CrCl2 salt as the precatalyst in combination with allylmagnesium bromide and E/Z-mixed 1-halo-2-styrylarenes as substates, providing a strategy for the construction of functionalized phenanthrene compounds without using external ligands.
Collapse
Affiliation(s)
- Xuelan Wang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Jiaoyue Zhong
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Meiming Luo
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Xiaoming Zeng
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| |
Collapse
|
3
|
Yamada T, Fujii A, Park K, Furugen C, Takagi A, Ikawa T, Sajiki H. Catalytic Intramolecular Cyclization of Alkynyl Cyclic Acetals via Chemoselective Activation Leading to Phenanthrene Core. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20220036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tsuyoshi Yamada
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Akiko Fujii
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Kwihwan Park
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Chikara Furugen
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Akira Takagi
- Laboratory of Bioorganic & Natural Products Chemistry, Kobe Pharmaceutical University, Kobe, Hyogo 658-8558, Japan
| | - Takashi Ikawa
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Hironao Sajiki
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| |
Collapse
|
4
|
John SE, Tokala R, Kaki VR, Shankaraiah N. Expedition to Phenanthrene Nucleus: A Two‐decade Research on Bench. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100333] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Stephy Elza John
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Ramya Tokala
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Venkata Rao Kaki
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| |
Collapse
|
5
|
Raji Reddy C, Aila M, Subbarao M, Warudikar K, Grée R. Domino Reaction of 2,4-Diyn-1-ols with 1,3-Dicarbonyl Compounds: Direct Access to Aryl/Heteroaryl-Fused Benzofurans and Indoles. Org Lett 2021; 23:4882-4887. [PMID: 34096313 DOI: 10.1021/acs.orglett.1c01615] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A domino propargylation/furanylation (intramolecular exo-dig-cyclization)/benzannulation reaction of 2,4-diyn-1-ols with 1,3-dicarbonyl compounds has been developed for the first time. This provides a novel and effective method for the preparation of aryl/heteroaryl-fused benzofurans from easily accessible starting materials in a single step. The methodology was extended to pyrrolyl-benzannulation to obtain aryl/heteroaryl-fused indoles. Further, application of this approach in the synthesis of eustifoline D and dictyodendrin structural frameworks has been demonstrated.
Collapse
Affiliation(s)
- Chada Raji Reddy
- 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
| | - Mounika Aila
- 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
| | - Muppidi Subbarao
- 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
| | - Kamalkishor Warudikar
- 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
| | - René Grée
- Univ Rennes, CNRS (Institut for Chemical Sciences in Rennes), UMR 6226, 35000 Rennes, France
| |
Collapse
|
6
|
Pd-catalyzed atom-efficient cross-coupling of triarylbismuth reagents with protecting group-free iodophenylmethanols: Synthesis of biarylmethanols. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
7
|
Sunke R, Kalyani A, Swamy KCK. Cu(I)-Catalyzed Ligand-Free Tandem One-Pot or Sequential Annulation via Knoevenagel Intermediates: An Entry into Multifunctional Naphthalenes, Phenanthrenes, Quinolines, and Benzo[ b]carbazoles. J Org Chem 2020; 85:1073-1086. [PMID: 31823603 DOI: 10.1021/acs.joc.9b02991] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A simple but efficient one-pot or sequential copper-catalyzed protocol using 2-bromoaldehydes and active methylene group containing substrates that affords multifunctional naphthalenes, phenanthrenes, quinolines, and benzo[b]carbazoles via Knoevenagel condensation, C-arylation, and decarboxylation, followed by aromatization, is developed. The reaction utilizes the potential of Knoevenagel intermediates and does not require any ancillary ligand. The phenanthrene products thus obtained show moderate fluorescence activity. Structural elaboration of the products to obtain dihydrobenzoquinazolines is also highlighted.
Collapse
Affiliation(s)
- Rajnikanth Sunke
- School of Chemistry , University of Hyderabad , Hyderabad 500046 , Telangana , India
| | - Adula Kalyani
- School of Chemistry , University of Hyderabad , Hyderabad 500046 , Telangana , India
| | - K C Kumara Swamy
- School of Chemistry , University of Hyderabad , Hyderabad 500046 , Telangana , India
| |
Collapse
|
8
|
Chang MY, Lai KX, Chang YL. In(OTf)3-catalyzed intramolecular hydroarylation of α-phenylallyl β-ketosulfones – synthesis of sulfonyl 1-benzosuberones and 1-tetralones. RSC Adv 2020; 10:18231-18244. [PMID: 35517185 PMCID: PMC9053753 DOI: 10.1039/d0ra01962c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 05/05/2020] [Indexed: 11/21/2022] Open
Abstract
In(OTf)3-catalyzed intramolecular hydroarylation of α-phenylallyl β-ketosulfones provides sulfonyl 1-benzosuberones and 1-tetralones in moderate to good yields in refluxing (CH2Cl)2 under open-vessel and easy-operation reaction conditions. A plausible mechanism is proposed and discussed. This highly regioselective protocol provides an atom-economic ring-closure route. In(OTf)3-catalyzed intramolecular hydroarylation of α-phenylallyl β-ketosulfones provides sulfonyl 1-benzosuberones and 1-tetralones in moderate to good yields in refluxing (CH2Cl)2 under open-vessel and easy-operation reaction conditions.![]()
Collapse
Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University Hospital
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| | - Kai-Xiang Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University Hospital
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| | - Yu-Lun Chang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University Hospital
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| |
Collapse
|
9
|
Song J, Wang S, Sun H, Fan Y, Xiao K, Qian Y. A palladium-catalyzed multi-component annulation approach towards the synthesis of phenanthrenes. Org Biomol Chem 2019; 17:3328-3332. [PMID: 30874695 DOI: 10.1039/c9ob00228f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient palladium-catalyzed three-component cascade reaction has been developed for the facile construction of phenanthrene frameworks. The transformation is driven by a controlled reaction sequence of Suzuki-Miyaura coupling followed by the insertion of alkynes, and finally, annulation to yield phenanthrene derivatives via C-H activation. This methodology is able to accommodate a variety of substrates and affords the anticipated products in good to excellent yields.
Collapse
Affiliation(s)
- Juan Song
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China.
| | | | | | | | | | | |
Collapse
|
10
|
Gou BB, Yang H, Sun HR, Chen J, Wu J, Zhou L. Phenanthrene Synthesis by Palladium(II)-Catalyzed γ-C(sp 2)-H Arylation, Cyclization, and Migration Tandem Reaction. Org Lett 2019; 21:80-84. [PMID: 30543434 DOI: 10.1021/acs.orglett.8b03511] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Phenanthrene is an important structural motif in chemistry and materials science, and many synthetic routes have been developed to construct its skeleton. However, synthesis of unsymmetric phenanthrenes remains a challenge. Here, an efficient one-pot tandem reaction for the preparation of phenanthrenes via sequential γ-C(sp2)-H arylation, cationic cyclization, dehydration, and 1,2-migration was developed. A wide range of symmetric and unsymmetric phenanthrenes with diversified functional groups were synthesized with good to excellent yields.
Collapse
Affiliation(s)
- Bo-Bo Gou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China
| | - Hui Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China
| | - Huai-Ri Sun
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China
| | - Junliang Wu
- College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China
| |
Collapse
|
11
|
Zhang H, Sun N, Hu B, Shen Z, Hu X, Jin L. Copper-catalyzed direct couplings of terminal alkynes with primary and secondary benzyl bromides. Org Chem Front 2019. [DOI: 10.1039/c9qo00335e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a facile Cu-catalyzed benzylation of terminal alkynes from easily available benzyl bromides.
Collapse
Affiliation(s)
- Huiru Zhang
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- P.R. China
| | - Nan Sun
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- P.R. China
| | - Baoxiang Hu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- P.R. China
| | - Zhenlu Shen
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- P.R. China
| | - Xinquan Hu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- P.R. China
| | - Liqun Jin
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- P.R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
| |
Collapse
|
12
|
Menkir MG, Lee SL. Density Functional Theory Study on the Mechanisms of Platinum‐ and Gold‐Catalyzed Cycloisomerizations of Biaryl Propargyl Alcohol and Indolyl Allenol to Phenanthrene and Carbazole. ChemistrySelect 2018. [DOI: 10.1002/slct.201802239] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mengistu G. Menkir
- Department of Chemistry and BiochemistryNational Chung Cheng University Chiayi 62102 Taiwan
| | - Shyi L. Lee
- Department of Chemistry and BiochemistryNational Chung Cheng University Chiayi 62102 Taiwan
| |
Collapse
|
13
|
Izquierdo S, Bouvet S, Wu Y, Molina S, Shafir A. The Coming of Age in Iodane‐Guided
ortho
‐C−H Propargylation: From Insight to Synthetic Potential. Chemistry 2018; 24:15517-15521. [DOI: 10.1002/chem.201804058] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Susana Izquierdo
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Sébastien Bouvet
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Yichen Wu
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Sonia Molina
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Alexandr Shafir
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| |
Collapse
|
14
|
Jiang YT, Yu ZZ, Zhang YK, Wang B. N-Bromosuccinimide-Induced C-H Bond Functionalization: An Intramolecular Cycloaromatization of Electron Withdrawing Group Substituted 1-Biphenyl-2-ylethanone for the Synthesis of 10-Phenanthrenol. Org Lett 2018; 20:3728-3731. [PMID: 29923730 DOI: 10.1021/acs.orglett.8b01160] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An NBS-induced intramolecular cycloaromatization for the synthesis of 10-phenanthrenols from electron-withdrawing group substituted 1-biphenyl-2-ylethanones is described. The in situ generated bromide was designed to act as an initiator for the radical C-H bond activation. An oxidative cross-dehydrogenative coupling reaction of a highly active C-H bond with an inert C-H bond readily occurs under mild conditions without the need for transition metals or strong oxidants.
Collapse
Affiliation(s)
- Ya-Ting Jiang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin 300353 , People's Republic of China
| | - Zhen-Zhen Yu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin 300353 , People's Republic of China
| | - Ya-Kai Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin 300353 , People's Republic of China
| | - Bin Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin 300353 , People's Republic of China
| |
Collapse
|
15
|
Wang CY, Pan GH, Chen F, Li JH. Oxidative cyclization of 2-allenyl-1,1'-biphenyls with α-carbonyl alkyl bromides: facile access to functionalized phenanthrenes. Chem Commun (Camb) 2018; 53:4730-4733. [PMID: 28405640 DOI: 10.1039/c7cc00483d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new copper-facilitated oxidative cyclization of 2-allenyl-1,1'-biphenyls with α-carbonyl alkyl bromides for producing functionalized phenanthrenes is presented, which represents the first allene 2,3-dicarbofunctionalization triggered by oxidative radical-medicated C3-addition of the terminal allene moiety and C-Br/C-H functionalization.
Collapse
Affiliation(s)
- Cheng-Yong Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
| | | | | | | |
Collapse
|
16
|
Hu JT, Zheng B, Chen YC, Xiao Q. Expedient synthesis of 9,10-phenanthrenes via LiOPiv-promoted and palladium-catalysed aryne annulation by vinyl triflates. Org Chem Front 2018. [DOI: 10.1039/c8qo00368h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
An expedient synthesis of 9,10-phenanthrenes via LiOPiv-promoted and palladium-catalysed aryne annulation by vinyl triflates.
Collapse
Affiliation(s)
- Jun-Tao Hu
- School of Pharmacy
- Third Military Medical University
- Chongqing 400038
- P. R. China
| | - Bin Zheng
- School of Pharmacy
- Third Military Medical University
- Chongqing 400038
- P. R. China
| | - Ying-Chun Chen
- School of Pharmacy
- Third Military Medical University
- Chongqing 400038
- P. R. China
| | - Qing Xiao
- School of Pharmacy
- Third Military Medical University
- Chongqing 400038
- P. R. China
| |
Collapse
|
17
|
Pérez Sestelo J, Sarandeses LA, Martínez MM, Alonso-Marañón L. Indium(iii) as π-acid catalyst for the electrophilic activation of carbon–carbon unsaturated systems. Org Biomol Chem 2018; 16:5733-5747. [DOI: 10.1039/c8ob01426d] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review focuses on indium(iii) as a π-acid for the activation of C–C unsaturated systems (alkynes, alkenes, and allenes) in organic synthesis.
Collapse
Affiliation(s)
- José Pérez Sestelo
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - Luis A. Sarandeses
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - M. Montserrat Martínez
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - Lorena Alonso-Marañón
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| |
Collapse
|
18
|
Li Z, Thiery G, Lichtenthaler MR, Guillot R, Krossing I, Gandon V, Bour C. Catalytic Use of Low-Valent Cationic Gallium(I) Complexes as π-Acids. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701081] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhilong Li
- Institut de Chimie Moléculaire et des Matériaux d'Orsay; CNRS UMR 8182; Université Paris-Sud; Université Paris-Saclay; Bâtiment 420 91405 Orsay cedex France
| | - Guillaume Thiery
- Institut de Chimie Moléculaire et des Matériaux d'Orsay; CNRS UMR 8182; Université Paris-Sud; Université Paris-Saclay; Bâtiment 420 91405 Orsay cedex France
| | - Martin R. Lichtenthaler
- Department of Chemistry; University of California, Berkeley; USA
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF); Albert-Ludwigs-Universität Freiburg; Albertstr. 21 79104 Freiburg Germany
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay; CNRS UMR 8182; Université Paris-Sud; Université Paris-Saclay; Bâtiment 420 91405 Orsay cedex France
| | - Ingo Krossing
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF); Albert-Ludwigs-Universität Freiburg; Albertstr. 21 79104 Freiburg Germany
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay; CNRS UMR 8182; Université Paris-Sud; Université Paris-Saclay; Bâtiment 420 91405 Orsay cedex France
| | - Christophe Bour
- Institut de Chimie Moléculaire et des Matériaux d'Orsay; CNRS UMR 8182; Université Paris-Sud; Université Paris-Saclay; Bâtiment 420 91405 Orsay cedex France
| |
Collapse
|
19
|
Zhao XZ, Hymel D, Burke TR. Enhancing polo-like kinase 1 selectivity of polo-box domain-binding peptides. Bioorg Med Chem 2017; 25:5041-5049. [PMID: 28285924 PMCID: PMC5573662 DOI: 10.1016/j.bmc.2017.02.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 02/24/2017] [Accepted: 02/27/2017] [Indexed: 12/20/2022]
Abstract
An important goal in the development of polo-like kinase 1 (Plk1) polo-box domain (PBD) binding inhibitors is selectivity for Plk1 relative to Plk2 and Plk3. In our current work we show that Plk1 PBD selectivity can be significantly enhanced by modulating interactions within a previously discovered "cryptic pocket" and a more recently identified proximal "auxiliary pocket."
Collapse
Affiliation(s)
- Xue Zhi Zhao
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702, United States
| | - David Hymel
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702, United States
| | - Terrence R Burke
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702, United States.
| |
Collapse
|
20
|
Iwasaki M, Araki Y, Nishihara Y. Phenanthrene Synthesis by Palladium-Catalyzed Benzannulation with o-Bromobenzyl Alcohols through Multiple Carbon–Carbon Bond Formations. J Org Chem 2017; 82:6242-6258. [DOI: 10.1021/acs.joc.7b00848] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Masayuki Iwasaki
- Research Institute for Interdisciplinary
Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Yasuhiro Araki
- Research Institute for Interdisciplinary
Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Yasushi Nishihara
- Research Institute for Interdisciplinary
Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| |
Collapse
|
21
|
Jafarpour F, Ayoubi-Chianeh M, Abbasnia M, Azizzade M. A new route to π-extended polycyclic aromatic hydrocarbons via cross-dehydrogenative coupling. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01040k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A rare example of fruitful construction of highly π-extended PAHs expressly via palladium-catalyzed CDC reaction is demonstrated.
Collapse
Affiliation(s)
- Farnaz Jafarpour
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
- Iran
| | | | | | - Meysam Azizzade
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
- Iran
| |
Collapse
|
22
|
Menkir MG, Lee SL. Mechanisms of metal-catalyzed cycloisomerizations of o-propargylbiaryls and o-allenylbiaryls to phenanthrenes: a DFT study. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01899a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
DFT calculation results reveal that InCl3-catalyzed cycloisomerization of o-propargylbiphenyl proceeds via 6-exo cyclization followed by intermolecular chloride-assisted H-abstraction/proto-demetalation and intramolecular chloride-assisted H-abstraction/proto-demetalation to afford a phenanthrene skeleton.
Collapse
Affiliation(s)
- Mengistu Gemech Menkir
- Department of Chemistry and Biochemistry
- National Chung Cheng University
- Chiayi 62102
- Taiwan
| | - Shyi-Long Lee
- Department of Chemistry and Biochemistry
- National Chung Cheng University
- Chiayi 62102
- Taiwan
| |
Collapse
|
23
|
St-Cyr DJ, García-Ramos Y, Doan ND, Lubell WD. Aminolactam, N-Aminoimidazolone, and N-Aminoimdazolidinone Peptide Mimics. TOPICS IN HETEROCYCLIC CHEMISTRY 2017. [DOI: 10.1007/7081_2017_204] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
24
|
Boyarskiy VP, Ryabukhin DS, Bokach NA, Vasilyev AV. Alkenylation of Arenes and Heteroarenes with Alkynes. Chem Rev 2016; 116:5894-986. [DOI: 10.1021/acs.chemrev.5b00514] [Citation(s) in RCA: 319] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vadim P. Boyarskiy
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya nab., 7/9, Saint Petersburg 199034, Russia
| | - Dmitry S. Ryabukhin
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya nab., 7/9, Saint Petersburg 199034, Russia
- Department of Chemistry, Saint Petersburg State Forest Technical University, Institutsky per. 5, Saint Petersburg 194021, Russia
| | - Nadezhda A. Bokach
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya nab., 7/9, Saint Petersburg 199034, Russia
| | - Aleksander V. Vasilyev
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya nab., 7/9, Saint Petersburg 199034, Russia
- Department of Chemistry, Saint Petersburg State Forest Technical University, Institutsky per. 5, Saint Petersburg 194021, Russia
| |
Collapse
|
25
|
Gao K, Otsuka S, Baralle A, Nogi K, Yorimitsu, H, Osuka A. Cross-coupling of Aryl Sulfides Powered by N-Heterocyclic Carbene Ligands. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.1119] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | | | - Hideki Yorimitsu,
- Department of Chemistry, Graduate School of Science, Kyoto University
| | | |
Collapse
|
26
|
Bu MJ, Lu GP, Cai C. Ascorbic acid promoted [4 + 2] benzannulation: a mild, operationally simple approach to the synthesis of phenanthrenes. Org Chem Front 2016. [DOI: 10.1039/c6qo00020g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ascorbic acid-promoted radical [4 + 2] benzannulation for the generation of substituted phenanthrenes at room temperature has been developed.
Collapse
Affiliation(s)
- Mei-jie Bu
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing
- People's Republic of China
| | - Guo-ping Lu
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing
- People's Republic of China
| | - Chun Cai
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing
- People's Republic of China
| |
Collapse
|
27
|
Iwasaki M, Araki Y, Iino S, Nishihara Y. Synthesis of Multisubstituted Triphenylenes and Phenanthrenes by Cascade Reaction of o-Iodobiphenyls or (Z)-β-Halostyrenes with o-Bromobenzyl Alcohols through Two Sequential C–C Bond Formations Catalyzed by a Palladium Complex. J Org Chem 2015; 80:9247-63. [DOI: 10.1021/acs.joc.5b01693] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Masayuki Iwasaki
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Yasuhiro Araki
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Shohei Iino
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Yasushi Nishihara
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
- ACT-C, Japan Science and Technology Agency, Kawaguchi 332-0012, Japan
| |
Collapse
|
28
|
Kondoh A, Aoki T, Terada M. Synthesis of Phenanthrene Derivatives by Intramolecular Cyclization Utilizing the [1,2]-Phospha-Brook Rearrangement Catalyzed by a Brønsted Base. Chemistry 2015; 21:12577-80. [DOI: 10.1002/chem.201501377] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Indexed: 11/08/2022]
|
29
|
Yu J, Lee S, Moon HR, Kim JN. Facile Synthesis of Benzocyclohepta[1,2-c]pyrazoles Starting from Morita–Baylis–Hillman AdductsViaan Intramolecular Friedel-Crafts Alkenylation. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10337] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jin Yu
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Sangku Lee
- Targeted Medicine Research Center; Korea Research Institute of Bioscience and Biotechnology; Cheongwon Chungbuk 363-883 Korea
| | - Hye Ran Moon
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jae Nyoung Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| |
Collapse
|
30
|
Lim JW, Kim SH, Kim J, Kim JN. Synthesis of Benzo[a]carbazoles from 2-Arylindolesviaa Sequential Propargylation, Propargyl-Allenyl Isomerization, and 6π-Electrocyclization. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10258] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jin Woo Lim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Se Hee Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jimin Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jae Nyoung Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| |
Collapse
|
31
|
Nakane T, Tanioka Y, Tsukada N. Synthesis of Multinuclear Copper Complexes Bridged by Diquinolylamidinates and Their Application to Copper-Catalyzed Coupling of Terminal Alkynes and Aryl, Allyl, and Benzyl Halides. Organometallics 2015. [DOI: 10.1021/om501139f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Takayuki Nakane
- Department
of Chemistry, Graduate School of Science,
and ‡Research Institute
of Green Science and Technology, Shizuoka University, Shizuoka 422-8529, Japan
| | - Yuta Tanioka
- Department
of Chemistry, Graduate School of Science,
and ‡Research Institute
of Green Science and Technology, Shizuoka University, Shizuoka 422-8529, Japan
| | - Naofumi Tsukada
- Department
of Chemistry, Graduate School of Science,
and ‡Research Institute
of Green Science and Technology, Shizuoka University, Shizuoka 422-8529, Japan
| |
Collapse
|
32
|
Hartmann M, Daniliuc CG, Studer A. Preparation of phenanthrenes from ortho-amino-biphenyls and alkynes via base-promoted homolytic aromatic substitution. Chem Commun (Camb) 2015; 51:3121-3. [DOI: 10.1039/c4cc10063h] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phenanthrenes are prepared from ortho-aminobiphenyls and acetylenes via base-promoted homolytic aromatic substitution.
Collapse
Affiliation(s)
- Marcel Hartmann
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität
- 48149 Münster
- Germany
| | | | - Armido Studer
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität
- 48149 Münster
- Germany
| |
Collapse
|
33
|
Bera K, Sarkar S, Jana U. Iron-catalyzed tandem carbon–carbon/carbon–oxygen bond formation/aromatization of 2′-alkynyl-biphenyl-2-carbinols: a new approach to the synthesis of substituted phenanthrenes. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.073] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
34
|
Yadav AK, Yadav LDS. Visible-light-driven electrocyclization of activated allylic amines via azomethine ylide formation. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.063] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
35
|
Alonso-Marañón L, Martínez MM, Sarandeses LA, Sestelo JP. Indium-catalyzed intramolecular hydroarylation of aryl propargyl ethers. Org Biomol Chem 2015; 13:379-87. [DOI: 10.1039/c4ob02033b] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Indium(iii) halides are efficient and selective catalysts for the intramolecular hydroarylation of aryl propargyl ethers.
Collapse
Affiliation(s)
- Lorena Alonso-Marañón
- Departamento de Química Fundamental and Centro de Investigaciones Científicas Avanzadas (CICA)
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - M. Montserrat Martínez
- Departamento de Química Fundamental and Centro de Investigaciones Científicas Avanzadas (CICA)
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - Luis A. Sarandeses
- Departamento de Química Fundamental and Centro de Investigaciones Científicas Avanzadas (CICA)
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - José Pérez Sestelo
- Departamento de Química Fundamental and Centro de Investigaciones Científicas Avanzadas (CICA)
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| |
Collapse
|
36
|
Aichhorn S, Himmelsbach M, Schöfberger W. Synthesis of quinoxalines or quinolin-8-amines from N-propargyl aniline derivatives employing tin and indium chlorides. Org Biomol Chem 2015; 13:9373-80. [DOI: 10.1039/c5ob01532d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The utility of stannous chloride dihydrate as well as indium/InCl3 in combination with “ortho-nitrogen”-N-propargylanilines for the construction of either quinoxaline- or quinolin-8-amine-scaffolds is demonstrated. Depending on the nature of the alkyne, different bicyclic nitrogen heterocycles are formed under aerobic conditions.
Collapse
Affiliation(s)
- Stefan Aichhorn
- Institute of Organic Chemistry
- Johannes Kepler University Linz
- 4040 Linz
- Austria
| | - Markus Himmelsbach
- Institute of Analytical Chemistry
- Johannes Kepler University Linz
- 4040 Linz
- Austria
| | | |
Collapse
|
37
|
Kwon Y, Kim I, Kim S. Platinum-Catalyzed Synthesis of Substituted Phenanthrenes from Biphenyl Propargyl Alcohols via a Carbene Intermediate. Org Lett 2014; 16:4936-9. [DOI: 10.1021/ol502465e] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yongseok Kwon
- College of Pharmacy, Seoul National University, Seoul 151-742, Korea
| | - Illan Kim
- College of Pharmacy, Seoul National University, Seoul 151-742, Korea
| | - Sanghee Kim
- College of Pharmacy, Seoul National University, Seoul 151-742, Korea
| |
Collapse
|
38
|
Synthesis of 1H-benzo[g]indazole derivatives: propargyl–allenyl isomerization and 6π-electrocyclization involving two aromatic π-bonds. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.048] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
39
|
Otsuka S, Fujino D, Murakami K, Yorimitsu H, Osuka A. Palladium-Catalyzed Cross-Coupling of Unactivated Aryl Sulfides with Arylzinc Reagents under Mild Conditions. Chemistry 2014; 20:13146-9. [DOI: 10.1002/chem.201404380] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2014] [Indexed: 11/10/2022]
|
40
|
Li HM, Feng AQ, Lou XH. Synthesis of Substituted Biarylmethanol via Ferrocenyloxime Palladacycles Catalyzed Suzuki Reaction of Chlorophenylmethanol in Water. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.8.2551] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
41
|
Nemoto T, Matsuo N, Hamada Y. Gold-Catalyzed Carbocyclization of Phenols with a Terminal Alkyneviaan Intramolecularipso-Friedel-Crafts Alkenylation. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400247] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
42
|
Zheng Y, Liu Y, Wang Q. Collective Asymmetric Synthesis of (−)-Antofine, (−)-Cryptopleurine, (−)-Tylophorine, and (−)-Tylocrebrine with tert-Butanesulfinamide as a Chiral Auxiliary. J Org Chem 2014; 79:3348-57. [DOI: 10.1021/jo500013e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yanlong Zheng
- State Key Laboratory of Elemento-Organic
Chemistry, Research Institute of Elemento-Organic Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People’s Republic of China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic
Chemistry, Research Institute of Elemento-Organic Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People’s Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic
Chemistry, Research Institute of Elemento-Organic Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People’s Republic of China
| |
Collapse
|
43
|
Shu C, Li L, Chen CB, Shen HC, Ye LW. Gold-Catalyzed 6-Exo-DigCycloisomerization: A Versatile Approach to Functionalized Phenanthrenes. Chem Asian J 2014; 9:1525-9. [DOI: 10.1002/asia.201400034] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Indexed: 12/12/2022]
|
44
|
Construction of polyaromatics via photocyclization of 2-(fur-3-yl)ethenylarenes, using a 3-furyl group as an isopropenyl equivalent synthon. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.01.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
45
|
Zhou W, Yang Y, Wang Z, Deng GJ. Rhodium-catalyzed intermolecular hydroarylation of internal alkynes with N-1-phenylbenzotriazoles. Org Biomol Chem 2014; 12:251-4. [DOI: 10.1039/c3ob42007h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
46
|
Roy B, Mondal D, Hatai J, Bandyopadhyay S. A highly efficient tandem [3 + 2] “click” cycloaddition/6-exo-cyclization strategy for the construction of triazole fused pyrazines. RSC Adv 2014. [DOI: 10.1039/c4ra12489h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The pharmaceutically important tetrahydro-[1,2,3]triazolopyrazine heterocyclic architecture has been synthesized via a concise tandem “click”/6-exo-dig cyclization strategy under mild conditions in mixed aqueous–organic media.
Collapse
Affiliation(s)
- Biswajit Roy
- Indian Institute of Science Education and Research (IISER) Kolkata
- , India
| | - Debashis Mondal
- Indian Institute of Science Education and Research (IISER) Kolkata
- , India
| | - Joydev Hatai
- Indian Institute of Science Education and Research (IISER) Kolkata
- , India
| | | |
Collapse
|
47
|
Shu C, Chen CB, Chen WX, Ye LW. Flexible and Practical Synthesis of Anthracenes through Gold-Catalyzed Cyclization ofo-Alkynyldiarylmethanes. Org Lett 2013; 15:5542-5. [DOI: 10.1021/ol402713g] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Chao Shu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Cheng-Bin Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Wei-Xi Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Long-Wu Ye
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| |
Collapse
|
48
|
Kumar A, Li Z, Sharma SK, Parmar VS, Van der Eycken EV. Switching the regioselectivity via indium(iii) and gold(i) catalysis: a post-Ugi intramolecular hydroarylation to azepino- and azocino-[c,d]indolones. Chem Commun (Camb) 2013; 49:6803-5. [DOI: 10.1039/c3cc42704h] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|