1
|
Kumar R, Dohi T, Zhdankin VV. Organohypervalent heterocycles. Chem Soc Rev 2024; 53:4786-4827. [PMID: 38545658 DOI: 10.1039/d2cs01055k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
This review summarizes the structural and synthetic aspects of heterocyclic molecules incorporating an atom of a hypervalent main-group element. The term "hypervalent" has been suggested for derivatives of main-group elements with more than eight valence electrons, and the concept of hypervalency is commonly used despite some criticism from theoretical chemists. The significantly higher thermal stability of hypervalent heterocycles compared to their acyclic analogs adds special features to their chemistry, particularly for bromine and iodine. Heterocyclic compounds of elements with double bonds are not categorized as hypervalent molecules owing to the zwitterionic nature of these bonds, resulting in the conventional 8-electron species. This review is focused on hypervalent heterocyclic derivatives of nonmetal main-group elements, such as boron, silicon, nitrogen, carbon, phosphorus, sulfur, selenium, bromine, chlorine, iodine(III) and iodine(V).
Collapse
Affiliation(s)
- Ravi Kumar
- Department of Chemistry, J C Bose University of Science and Technology, YMCA, NH-2, Sector-6, Mathura Road, Faridabad, 121006, Haryana, India.
| | - Toshifumi Dohi
- Graduate School of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-8577, Japan.
| | - Viktor V Zhdankin
- Department of Chemistry and Biochemistry, 1038 University Drive, 126 HCAMS University of Minnesota Duluth, Duluth, Minnesota 55812, USA.
| |
Collapse
|
2
|
Clamor N, Damrath M, Kuczmera TJ, Duvinage D, Nachtsheim BJ. Synthesis of N-acyl carbazoles, phenoxazines and acridines from cyclic diaryliodonium salts. Beilstein J Org Chem 2024; 20:12-16. [PMID: 38213840 PMCID: PMC10777325 DOI: 10.3762/bjoc.20.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 12/21/2023] [Indexed: 01/13/2024] Open
Abstract
N-Acyl carbazoles can be efficiently produced through a single-step process using amides and cyclic diaryliodonium triflates. This convenient reaction is facilitated by copper iodide in p-xylene, using the commonly found activating ligand diglyme. We have tested this method with a wide range of amides and iodonium triflates, proving its versatility with numerous substrates. Beyond carbazoles, we also produced a variety of other N-heterocycles, such as acridines, phenoxazines, or phenazines, showcasing the robustness of our technique. In a broader sense, this new method creates two C-N bonds simultaneously based on a mono-halogenated starting material, thus allowing heterocycle formation with diminished halogen waste.
Collapse
Affiliation(s)
- Nils Clamor
- Institute for Organic and Analytical Chemistry, University of Bremen, Leobener Straße 7, D-28359 Bremen, Germany
| | - Mattis Damrath
- Institute for Organic and Analytical Chemistry, University of Bremen, Leobener Straße 7, D-28359 Bremen, Germany
| | - Thomas J Kuczmera
- Institute for Organic and Analytical Chemistry, University of Bremen, Leobener Straße 7, D-28359 Bremen, Germany
| | - Daniel Duvinage
- Institute for Inorganic and Crystallographic Chemistry, University of Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Boris J Nachtsheim
- Institute for Organic and Analytical Chemistry, University of Bremen, Leobener Straße 7, D-28359 Bremen, Germany
| |
Collapse
|
3
|
Allen LAT, Natho P. Trends in carbazole synthesis - an update (2013-2023). Org Biomol Chem 2023; 21:8956-8974. [PMID: 37906471 DOI: 10.1039/d3ob01605f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
The interest of scientists in the carbazole core has risen steadily over the last 30 years, particularly over the last decade given its presence in several active pharmaceutical ingredients, functional materials and a wide range of biologically active natural products. The continuous development of more efficient, more (regio-)selective and "greener" methodologies to access the carbazole core is thus imperative. This review compares and evaluates synthetic strategies towards the carbazole core that have been reported since 2013, with a focus on their applicability towards the total synthesis of carbazole-containing natural products.
Collapse
Affiliation(s)
- Lewis A T Allen
- CheMastery, Paper Yard, 11a Quebec Way, London, SE16 7LG, UK
| | - Philipp Natho
- FLAME-Lab, Flow Chemistry and Microreactor Technology Laboratory, Department of Pharmacy-Drug Sciences, University of Bari "A. Moro", Via E. Orabona 4, 70125 Bari, Italy
| |
Collapse
|
4
|
Bhatta S, Senapati BK, Patra SK, Nanda S. A sequential Friedländer and anionic benzannulation strategy for the regiodefined assembly of unsymmetrical acridines. Org Biomol Chem 2023; 21:8727-8738. [PMID: 37870846 DOI: 10.1039/d3ob01470c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
An efficient sequential double-annulation strategy has been developed to afford a series of unsymmetrical acridines with high yield and regioselectivity for the first time. This simple protocol enables the sequential assembly of two aromatic rings from simple starting materials. The reaction proceeds via modified Friedländer annulation and subsequent base-mediated benzannulation with acrylates as Michael acceptors. A range of substrate scope and functional group tolerance is observed. Late-stage synthetic modification is also explored to access novel unsymmetrical acridines in good yield.
Collapse
Affiliation(s)
- Suman Bhatta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| | - Bidyut Kumar Senapati
- Department of Chemistry, Midnapore College (Autonomous), Midnapore, West Bengal, 721101, India
| | - Sanjib Kumar Patra
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| | - Samik Nanda
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| |
Collapse
|
5
|
Singhal R, Choudhary SP, Malik B, Pilania M. Cyclic diaryliodonium salts: applications and overview. Org Biomol Chem 2023; 21:4358-4378. [PMID: 37161758 DOI: 10.1039/d3ob00134b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Owing to the recent renewed interest and groundbreaking advances in hypervalent chemistry, cyclic diaryliodonium salts have had a myriad of unique applications in the past decade. Their numerous properties, such as an efficient dual arylation mechanism, straightforward one-pot synthesis compatibility, wide substrate scope, and functionalization tolerance, have made them appropriate starting materials for many bioactive compounds. Fluorenes, thiophenes, carbazoles, phenanthrenes, and many other useful cyclic bioactive molecules that are essential for pharmaceutical synthesis can be readily accessed from cyclic diaryliodonium salts. Particular focus has been given to the high optical activity and good enantiomeric excess of the products that facilitate the easy formation of many difficult-to-obtain optical isomers, such as atropisomers. This review aims to compile and summarize all the recent advances in synthesizing methodologies to prepare the important compounds where cyclic diaryliodonium salt is an integral part of the methodologies and would hopefully provide a good foundation for further research on this topic.
Collapse
Affiliation(s)
- Rakshanda Singhal
- Department of Chemistry, Manipal University Jaipur, Jaipur, VPO-Dehmi-Kalan, Off Jaipur-Ajmer Express Way, Jaipur, Rajasthan, 303007, India.
| | - Satya Prakash Choudhary
- Department of Chemistry, Manipal University Jaipur, Jaipur, VPO-Dehmi-Kalan, Off Jaipur-Ajmer Express Way, Jaipur, Rajasthan, 303007, India.
| | - Babita Malik
- Department of Chemistry, Manipal University Jaipur, Jaipur, VPO-Dehmi-Kalan, Off Jaipur-Ajmer Express Way, Jaipur, Rajasthan, 303007, India.
| | - Meenakshi Pilania
- Department of Chemistry, Manipal University Jaipur, Jaipur, VPO-Dehmi-Kalan, Off Jaipur-Ajmer Express Way, Jaipur, Rajasthan, 303007, India.
| |
Collapse
|
6
|
Peng X, Rahim A, Peng W, Jiang F, Gu Z, Wen S. Recent Progress in Cyclic Aryliodonium Chemistry: Syntheses and Applications. Chem Rev 2023; 123:1364-1416. [PMID: 36649301 PMCID: PMC9951228 DOI: 10.1021/acs.chemrev.2c00591] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Indexed: 01/18/2023]
Abstract
Hypervalent aryliodoumiums are intensively investigated as arylating agents. They are excellent surrogates to aryl halides, and moreover they exhibit better reactivity, which allows the corresponding arylation reactions to be performed under mild conditions. In the past decades, acyclic aryliodoniums are widely explored as arylation agents. However, the unmet need for acyclic aryliodoniums is the improvement of their notoriously low reaction economy because the coproduced aryl iodides during the arylation are often wasted. Cyclic aryliodoniums have their intrinsic advantage in terms of reaction economy, and they have started to receive considerable attention due to their valuable synthetic applications to initiate cascade reactions, which can enable the construction of complex structures, including polycycles with potential pharmaceutical and functional properties. Here, we are summarizing the recent advances made in the research field of cyclic aryliodoniums, including the nascent design of aryliodonium species and their synthetic applications. First, the general preparation of typical diphenyl iodoniums is described, followed by the construction of heterocyclic iodoniums and monoaryl iodoniums. Then, the initiated arylations coupled with subsequent domino reactions are summarized to construct polycycles. Meanwhile, the advances in cyclic aryliodoniums for building biaryls including axial atropisomers are discussed in a systematic manner. Finally, a very recent advance of cyclic aryliodoniums employed as halogen-bonding organocatalysts is described.
Collapse
Affiliation(s)
- Xiaopeng Peng
- College
of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular
and Cerebrovascular Diseases, Ministry of Education, Jiangxi Province
Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou341000, P.R. China
- State
Key Laboratory of Oncology in South China, Collaborative Innovation
Center for Cancer Medicine, Sun Yat-sen
University Cancer Center, 651 Dongfeng East Road, Guangzhou510060, P. R. China
| | - Abdur Rahim
- Department
of Chemistry, University of Science and
Technology of China, 96 Jinzhai Road, Hefei230026, P. R. China
| | - Weijie Peng
- College
of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular
and Cerebrovascular Diseases, Ministry of Education, Jiangxi Province
Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou341000, P.R. China
| | - Feng Jiang
- College
of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular
and Cerebrovascular Diseases, Ministry of Education, Jiangxi Province
Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou341000, P.R. China
| | - Zhenhua Gu
- Department
of Chemistry, University of Science and
Technology of China, 96 Jinzhai Road, Hefei230026, P. R. China
| | - Shijun Wen
- State
Key Laboratory of Oncology in South China, Collaborative Innovation
Center for Cancer Medicine, Sun Yat-sen
University Cancer Center, 651 Dongfeng East Road, Guangzhou510060, P. R. China
| |
Collapse
|
7
|
Linde E, Knippenberg N, Olofsson B. Synthesis of Cyclic and Acyclic ortho-Aryloxy Diaryliodonium Salts for Chemoselective Functionalizations. Chemistry 2022; 28:e202202453. [PMID: 36083826 PMCID: PMC10092902 DOI: 10.1002/chem.202202453] [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: 08/08/2022] [Indexed: 12/14/2022]
Abstract
Two regioselective, high-yielding one-pot routes to oxygen-bridged cyclic diaryliodonium salts and ortho-aryloxy-substituted acyclic diaryliodonium salts are presented. Starting from easily available ortho-iodo diaryl ethers, complete selectivity in formation of either the cyclic or acyclic product could be achieved by varying the reaction conditions. The complimentary reactivities of these novel ortho-oxygenated iodonium salts were demonstrated through a series of chemoselective arylations under metal-catalyzed and metal-free conditions, to deliver a range of novel, ortho-functionalized diaryl ether derivatives.
Collapse
Affiliation(s)
- Erika Linde
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91, Stockholm, Sweden
| | - Niels Knippenberg
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91, Stockholm, Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91, Stockholm, Sweden
| |
Collapse
|
8
|
Yang JM, Yao ML, Li JC, Liu JK, Wu B. Access to Azepino-Annulated Benzo[ c]carbazoles Enabled by Gold-Catalyzed Hydroarylation of Alkynylindoles and Subsequent Oxidative Cyclization. Org Lett 2022; 24:6505-6509. [PMID: 36047768 DOI: 10.1021/acs.orglett.2c02293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, we report a facile and efficient synthetic method to construct azepino[1,2-a]indoles through a novel gold(I)-catalyzed intramolecular hydroarylation of alkynylindoles. A wide range of functional groups can be well tolerated in this transformation, and the corresponding highly functionalized azepino[1,2-a]indole skeletons were obtained in moderate to excellent yields. Subsequent oxidation of the products gave the interesting and valuable polycyclic carbazoles, which were widely used as the key building blocks in materials science.
Collapse
Affiliation(s)
- Jin-Ming Yang
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, People's Republic of China
| | - Meng-Lian Yao
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, People's Republic of China
| | - Jun-Chi Li
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, People's Republic of China
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, People's Republic of China
| | - Bin Wu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, People's Republic of China
| |
Collapse
|
9
|
Zhao YH, Chen JH, Liu M, Zhou YB, Wu H. Palladium‐Catalyzed Sequential C−H Activation/Amination of 2‐Iodobiphenyls with Benzoisoxazoles for Synthesis of Carbazoles. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
10
|
Deng L, Guo R, Wang L, Yang C, Wang Z. Rapid construction of acridines via BF3•Et2O promoted cyclization of 2-phenylamino benzophenones. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
11
|
Damrath M, Caspers LD, Duvinage D, Nachtsheim BJ. One-Pot Synthesis of Heteroatom-Bridged Cyclic Diaryliodonium Salts. Org Lett 2022; 24:2562-2566. [PMID: 35349290 DOI: 10.1021/acs.orglett.2c00691] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Two one-pot procedures for the construction of O- and N-bridged diaryliodonium triflates are described. An effective aryne-mediated arylation of o-iodophenols and -sulfonamides provides diarylether and diarylamine intermediates, which are subsequently oxidized and cyclized to the corresponding diaryliodaoxinium and -iodazinium salts. Different derivatizations were applied to demonstrate their capacity as useful building blocks and gain a deeper understanding toward the general reactivity of these underdeveloped but potentially highly useful compounds.
Collapse
Affiliation(s)
- Mattis Damrath
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Lucien D Caspers
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Daniel Duvinage
- Institute for Inorganic Chemistry and Crystallography, University of Bremen, 28359 Bremen, Germany
| | - Boris J Nachtsheim
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| |
Collapse
|
12
|
Shan L, Weng Y, Li H, Min L, Wang X, Hu Y. Bischler–Napieralski Synthesis of Polycyclic N-Heteroaromatics Based on Tf 2O-Promoted Electrophilic Activation of N-Aryl-2-Propynamides. J Org Chem 2022; 87:4124-4133. [DOI: 10.1021/acs.joc.1c02918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lidong Shan
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Yunxiang Weng
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Hongchen Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Lin Min
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Xinyan Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Yuefei Hu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| |
Collapse
|
13
|
Linde E, Bulfield D, Kervefors G, Purkait N, Olofsson B. Diarylation of N- and O-nucleophiles through a metal-free cascade reaction. Chem 2022. [DOI: 10.1016/j.chempr.2022.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
14
|
To AJ, Murphy GK. Iodolium salts as halogen-bond donor catalysts in the Nazarov cyclization: the molecular oxygen enigma. NEW J CHEM 2022. [DOI: 10.1039/d2nj02731c] [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
Nazarov cyclizations of activated precurosrs are achieved under iodolium catalysis, provided that oxygen is present for catalyst activation and turnover.
Collapse
Affiliation(s)
- Avery J. To
- Department of Chemistry and Waterloo Institute for Nanotechnology University of Waterloo 200 University Ave W., Waterloo, Ontario, N2L3G1, Canada
| | - Graham K. Murphy
- Department of Chemistry and Waterloo Institute for Nanotechnology University of Waterloo 200 University Ave W., Waterloo, Ontario, N2L3G1, Canada
| |
Collapse
|
15
|
Peng H, Liu Q, Sun Y, Luo B, Yu T, Huang P, Zhu D, Wen S. Tandem cyclization/arylation of diaryliodoniums via in situ constructed benzoxazole as a directing group for atom-economical transformation. Org Chem Front 2022. [DOI: 10.1039/d1qo01463c] [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
Linear diaryliodoniums often undergo only single arylation and leave equivalent aryl iodide as waste.
Collapse
Affiliation(s)
- Hui Peng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
| | - Qian Liu
- School of Pharmacy, Guangdong Pharmaceutical University, 280 Waihuan East Road, Guangzhou 510006, People's Republic of China
| | - Yameng Sun
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
| | - Bingling Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
| | - Tianyian Yu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
| | - Peng Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
| | - Daqian Zhu
- School of Pharmacy, Guangdong Pharmaceutical University, 280 Waihuan East Road, Guangzhou 510006, People's Republic of China
| | - Shijun Wen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, People's Republic of China
| |
Collapse
|
16
|
Han Q, Xu K, Tian F, Huang S, Zeng C. A Practical Transamidation Strategy for the N-Deacylation of Amides. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202112007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
17
|
Tashrifi Z, Khanaposhtani MM, Larijani B, Mahdavi M. Sodium Azide: An Inorganic Nitrogen Source for the Synthesis of Organic
N
‐Compounds. ChemistrySelect 2021. [DOI: 10.1002/slct.202103271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zahra Tashrifi
- Endocrinology and Metabolism Research Center Tehran University of Medical Sciences Tehran I.R. Iran
| | | | - Bagher Larijani
- Endocrinology and Metabolism Research Center Tehran University of Medical Sciences Tehran I.R. Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center Tehran University of Medical Sciences Tehran I.R. Iran
| |
Collapse
|
18
|
Antonkin NS, Vlasenko YA, Yoshimura A, Smirnov VI, Borodina TN, Zhdankin VV, Yusubov MS, Shafir A, Postnikov PS. Preparation and Synthetic Applicability of Imidazole-Containing Cyclic Iodonium Salts. J Org Chem 2021; 86:7163-7178. [PMID: 33944564 DOI: 10.1021/acs.joc.1c00483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A novel approach to the preparation of imidazole-substituted cyclic iodonium salts has been developed via the oxidative cyclization of 1-phenyl-5-iodoimidazole using a cheap and available Oxone/H2SO4 oxidative system. The structure of the new polycyclic heteroarenes has been confirmed by single-crystal X-ray diffractometry, revealing the characteristic structure features for cyclic iodonium salts. The newly produced imidazole-flanked cyclic iodonium compounds were found to readily engage in a heterocyclization reaction with elemental sulfur, affording benzo[5,1-b]imidazothiazoles in good yields.
Collapse
Affiliation(s)
- Nikita S Antonkin
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Yulia A Vlasenko
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Akira Yoshimura
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Vladimir I Smirnov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Favorsky Str., 1, Irkutsk 664033, Russian Federation
| | - Tatyana N Borodina
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Favorsky Str., 1, Irkutsk 664033, Russian Federation
| | - Viktor V Zhdankin
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation.,Department of Chemistry and Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
| | - Mekhman S Yusubov
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Alexandr Shafir
- Department of Biological Chemistry, IQAC-CSIC, c/Jordi Girona 18-26, Barcelona 08034, Spain
| | - Pavel S Postnikov
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation.,Department of Solid-State Engineering, University of Chemistry and Technology, Prague 16628, Czech Republic
| |
Collapse
|
19
|
Cheng HC, Zhou L, Zhou X, Ma JL, Guo P, Zhang Y, Ji HB. Ligand-free copper-catalyzed direct amidation of diaryliodonium salts using nitriles as amidation reagents. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
20
|
Xie R, Lv H, Ye X, Kong X, Li S. Cu-Catalyzed tandem N-arylation of phthalhydrazides with cyclic iodoniums to yield dihydrobenzo[c]cinnolines. Org Biomol Chem 2021; 18:4824-4830. [PMID: 32608470 DOI: 10.1039/d0ob00894j] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Dihydrocinnolines have significant pharmacological properties. Herein, we investigate a Cu-catalyzed tandem N-arylation reaction of phthalhydrazides with cyclic iodonium salts to construct dihydrobenzo[c]cinnoline derivatives. Various iodonium salts, such as symmetrical, unsymmetrical, aryl-aryl, and aryl-heteroaryl ones, could react with phthalhydrazides smoothly and give the title products in moderate to high yields. Moreover, the -NH2 group, which has been diarylated by cyclic iodonium salts to form carbazoles in previous reports, is also well tolerated in this work.
Collapse
Affiliation(s)
- Rongrong Xie
- Guangxi Key Laboratory of Electrochemical and Magneto-Chemical Function Materia, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Hongxu Lv
- Guangxi Key Laboratory of Electrochemical and Magneto-Chemical Function Materia, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Xiuqing Ye
- Guangxi Key Laboratory of Electrochemical and Magneto-Chemical Function Materia, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Xiangfei Kong
- Guangxi Key Laboratory of Electrochemical and Magneto-Chemical Function Materia, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
| | - Shiqing Li
- Guangxi Key Laboratory of Electrochemical and Magneto-Chemical Function Materia, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China.
| |
Collapse
|
21
|
Thangamani M, Srinivasan K. Scandium(III) Triflate-Catalyzed Reaction of Aroyl-Substituted Donor-Acceptor Cyclopropanes with 1-Naphthylamines: Access to Dibenzo[ c, h]acridines. J Org Chem 2021; 86:1172-1177. [PMID: 33236912 DOI: 10.1021/acs.joc.0c02105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The reaction of aroyl-substituted donor-acceptor (D-A) cyclopropanes with two equivalents of 1-naphthylamines in the presence of a catalytic amount of scandium(III) triflate provides access to dibenzo[c,h]acridines. The key steps of the transformation are the formation of nucleophilic ring-opening products from the D-A cyclopropanes and 1-naphthylamines and their subsequent fragmentation and cyclization. The method has a reasonable substrate scope, and the products are formed in 50-70% yields.
Collapse
Affiliation(s)
- Murugesan Thangamani
- School of Chemistry, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India
| | - Kannupal Srinivasan
- School of Chemistry, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India
| |
Collapse
|
22
|
Elsherbini M, Moran WJ. Scalable electrochemical synthesis of diaryliodonium salts. Org Biomol Chem 2021; 19:4706-4711. [PMID: 33960987 DOI: 10.1039/d1ob00457c] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclic and acyclic diaryliodonium are synthesised by anodic oxidation of iodobiaryls and iodoarene/arene mixtures, respectively, in a simple undivided electrolysis cell in MeCN-HFIP-TfOH without any added electrolyte salts. This atom efficient process does not require chemical oxidants and generates no chemical waste. More than 30 cyclic and acyclic diaryliodonium salts with different substitution patterns were prepared in very good to excellent yields. The reaction was scaled-up to 10 mmol scale giving more than four grams of dibenzo[b,d]iodol-5-ium trifluoromethanesulfonate (>95%) in less than three hours. The solvent mixture of the large-scale experiment was recovered (>97%) and recycled several times without significant reduction in yield.
Collapse
Affiliation(s)
- Mohamed Elsherbini
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK.
| | - Wesley J Moran
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK.
| |
Collapse
|
23
|
Kehl A, Schupp N, Breising VM, Schollmeyer D, Waldvogel SR. Electrochemical Synthesis of Carbazoles by Dehydrogenative Coupling Reaction. Chemistry 2020; 26:15847-15851. [PMID: 32737905 PMCID: PMC7756279 DOI: 10.1002/chem.202003430] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Indexed: 12/14/2022]
Abstract
A constant current protocol, employing undivided cells, a remarkably low supporting electrolyte concentration, inexpensive electrode materials, and a straightforward precursor synthesis enabling a novel access to N‐protected carbazoles by anodic N,C bond formation using directly generated amidyl radicals is reported. Scalability of the reaction is demonstrated and an easy deblocking of the benzoyl protecting group is presented.
Collapse
Affiliation(s)
- Anton Kehl
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Niclas Schupp
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Valentina M Breising
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Dieter Schollmeyer
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Siegfried R Waldvogel
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| |
Collapse
|
24
|
Zhu K, Song Z, Wang Y, Zhang F. Synthesis of 2,2′-Dihalobiaryls via Cu-Catalyzed Halogenation of Cyclic Diaryliodonium Salts. Org Lett 2020; 22:9356-9359. [DOI: 10.1021/acs.orglett.0c03614] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Kai Zhu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Zongqiang Song
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yi Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Fengzhi Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| |
Collapse
|
25
|
Abstract
Due to similar reactivity in comparison with aromatic organometallic reagents,
diaryliodonium salts are currently in broad usage as less toxic, highly efficient, stable and
mild electrophilic reagents in organic synthesis. The hypervalent iodine center of diaryliodonium
salts can lead to unique reactivity, which thus is frequently presented in metal-free
arylations or metal-involved elementary reactions such as oxidative addition, reduction
elimination, ligand coupling and ligand exchange reaction. As such, diaryliodonium salts
have experienced explosive growth by transferring aromatics to the target molecules. In
contrast to the reviews on the synthetic utility or aryl transformations by using diaryliodonium
salts, this review provides a summary of their structures and the synthetic strategies
towards them during recent decades.
Collapse
Affiliation(s)
- Yu Wang
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Guoqiang An
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Limin Wang
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Jianwei Han
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| |
Collapse
|
26
|
Ye X, Xu B, Sun J, Dai L, Shao Y, Zhang Y, Chen J. Pd-Catalyzed Approach for Assembling 9-Arylacridines via a Cascade Tandem Reaction of 2-(Arylamino)benzonitrile with Arylboronic Acids in Water. J Org Chem 2020; 85:13004-13014. [PMID: 32957780 DOI: 10.1021/acs.joc.0c01654] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A novel palladium-catalyzed protocol for the synthesis of 9-arylacridines via tandem reaction of 2-(arylamino)benzonitrile with arylboronic acids in water has been developed with good functional group tolerance. The present synthetic route could be readily scaled up to gram quantity without difficulty. This methodology was further extended to the synthesis of a 4'-OH derivative, which showed estrogenic biological activity. Preliminary mechanistic experiments showed that this transformation involves a nucleophilic addition of aryl palladium species to the nitrile to generate an aryl ketone intermediate followed by an intramolecular Friedel-Crafts acylation and dehydration to acridines.
Collapse
Affiliation(s)
- Xuanzeng Ye
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Beihang Xu
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jiani Sun
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Ling Dai
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yinlin Shao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China.,Institute of New Materials & Industrial Technology, Wenzhou University, Wenzhou 325035, China
| | - Yetong Zhang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jiuxi Chen
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| |
Collapse
|
27
|
2-Aminobenzaldehyde, a common precursor to acridines and acridones endowed with bioactivities. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131435] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
28
|
Peng X, Sun Z, Kuang P, Li L, Chen J, Chen J. Copper-Catalyzed Selective Arylation of Nitriles with Cyclic Diaryl Iodonium Salts: Direct Access to Structurally Diversified Diarylmethane Amides with Potential Neuroprotective and Anticancer Activities. Org Lett 2020; 22:5789-5795. [PMID: 32677838 DOI: 10.1021/acs.orglett.0c01829] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A novel, simple, and high-yielding approach for the preparation of diarylmethane amide derivatives has been developed by reacting cyclic diaryl iodonium salts with nitriles using CuCl as a catalyst. The procedure is efficient with high atom economy and a wide substrate range. Importantly, selective arylation of nitriles was obtained without affecting the phenyl amino/hydroxyl groups. Furthermore, two of the diarylmethane amides (3k, 3s) displayed excellent neuroprotective and anticancer activities.
Collapse
Affiliation(s)
- Xiaopeng Peng
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
| | - Zhiqiang Sun
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
| | - Peihua Kuang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
| | - Ling Li
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
| | - Jingxuan Chen
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
| | - Jianjun Chen
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
| |
Collapse
|
29
|
Tan ML, Tong S, Hou SK, You J, Wang MX. Copper-Catalyzed N,N-Diarylation of Amides for the Construction of 9,10-Dihydroacridine Structure and Applications in the Synthesis of Diverse Nitrogen-Embedded Polyacenes. Org Lett 2020; 22:5417-5422. [PMID: 32588635 DOI: 10.1021/acs.orglett.0c01775] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We reported herein CuI/DMEDA catalyzed N,N-diarylation reaction of amides with various di(o-bromoaryl)methanes to produce diverse 9,10-dihydroacridine derivatives. The resulting 9,10-dihydroacridine derivatives were oxidized selectively under mild conditions to afford acridine, acridinone, and acridinium derivatives. The copper-catalyzed N,N-diarylation reaction coupled with oxidative aromatization reaction enabled the facile construction of nitrogen atom-embedded tetracenes and pentacenes of different ortho-fused patterns. The luminescence properties, especially the effect of fusion pattern on fluorescence emission of acquired N-polycenes, were also demonstrated.
Collapse
Affiliation(s)
- Mei-Ling Tan
- MOE Key Laboratory of Green Chemistry and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Shuo Tong
- MOE Key Laboratory of Bioorganic Phosphorous and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Sheng-Kai Hou
- MOE Key Laboratory of Bioorganic Phosphorous and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jingsong You
- MOE Key Laboratory of Green Chemistry and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Mei-Xiang Wang
- MOE Key Laboratory of Bioorganic Phosphorous and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| |
Collapse
|
30
|
Cao Z, Zhu Y, Li X, He Y, Zhang J, Xu L, Wei Y. tert-Butyl Bromide-Promoted Intramolecular Cyclization of 2-Arylamino Phenyl Ketones and Its Combination with Cu-Catalyzed C-N Coupling: Synthesis of Acridines at Room Temperature. J Org Chem 2020; 85:10167-10174. [PMID: 32568540 DOI: 10.1021/acs.joc.0c00137] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein, a facile intramolecular cyclization of 2-arylamino phenyl ketones is established to supersede the traditional high-temperature, strongly acidic conditions and achieve 9-substituted acridines, by virtue of the combination of 2,2,2-trifluoroethanol and tert-butyl bromide. This protocol can be merged well with the preceding Cu-catalyzed intermolecular Chan-Evans-Lam cross-coupling reactions, therefore enabling pot-economic modular synthesis of 9-substituted acridines from readily available 2-amino phenyl ketones and aryl boronic acids at room temperature.
Collapse
Affiliation(s)
- Zifeng Cao
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Yuan Zhu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Xiaoman Li
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Yang He
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Jinli Zhang
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Liang Xu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Yu Wei
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| |
Collapse
|
31
|
Caspers LD, Spils J, Damrath M, Lork E, Nachtsheim BJ. One-Pot Synthesis and Conformational Analysis of Six-Membered Cyclic Iodonium Salts. J Org Chem 2020; 85:9161-9178. [PMID: 32539390 DOI: 10.1021/acs.joc.0c01125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two one-pot procedures for the construction of carbon-bridged diaryliodonium triflates and tetrafluoroborates are described. Strong Brønsted acids enable the effective Friedel-Crafts alkylation with diversely substituted o-iodobenzyl alcohol derivatives, providing diphenylmethane scaffolds, which are subsequently oxidized and cyclized to the corresponding dibenzo[b,e]iodininium salts. Based on NMR investigations and density functional theory (DFT) calculations, we could verify the so-far-undescribed existence of two stable isomers in cyclic iodonium salts substituted with aliphatic side chains in the carbon bridge.
Collapse
Affiliation(s)
- Lucien D Caspers
- Institute for Organic and Analytical Chemistry, University of Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Julian Spils
- Institute for Organic and Analytical Chemistry, University of Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Mattis Damrath
- Institute for Organic and Analytical Chemistry, University of Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Enno Lork
- Institute for Inorganic Chemistry and Crystallography, University of Bremen, 28359 Bremen, Germany
| | - Boris J Nachtsheim
- Institute for Organic and Analytical Chemistry, University of Bremen, Leobener Straße 7, 28359 Bremen, Germany
| |
Collapse
|
32
|
Kawahara KP, Matsuoka W, Ito H, Itami K. Synthesis of Nitrogen-Containing Polyaromatics by Aza-Annulative π-Extension of Unfunctionalized Aromatics. Angew Chem Int Ed Engl 2020; 59:6383-6388. [PMID: 32011794 DOI: 10.1002/anie.201913394] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 01/13/2020] [Indexed: 11/11/2022]
Abstract
Nitrogen-containing polycyclic aromatic compounds (N-PACs) are an important class of compounds in materials science. Reported here is a new aza-annulative π-extension (aza-APEX) reaction that allows rapid access to a range of N-PACs in 11-84 % yields from readily available unfunctionalized aromatics and imidoyl chlorides. In the presence of silver hexafluorophosphate, arenes and imidoyl chlorides couple in a regioselective fashion. The follow-up oxidative treatment with p-chloranil affords structurally diverse N-PACs, which are very difficult to synthesize. DFT calculations reveal that the aza-APEX reaction proceeds through the formal [4+2] cycloaddition of an arene and an in situ generated diarylnitrilium salt, with sequential aromatizations having relatively low activation energies. Transformation of N-PACs into nitrogen-doped nanographenes and their photophysical properties are also described.
Collapse
Affiliation(s)
- Kou P Kawahara
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Wataru Matsuoka
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Hideto Ito
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan.,JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Kenichiro Itami
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan.,JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya, 464-8602, Japan.,Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| |
Collapse
|
33
|
Kawahara KP, Matsuoka W, Ito H, Itami K. Synthesis of Nitrogen‐Containing Polyaromatics by Aza‐Annulative π‐Extension of Unfunctionalized Aromatics. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913394] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kou P. Kawahara
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
| | - Wataru Matsuoka
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
| | - Hideto Ito
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
- JST-ERATOItami Molecular Nanocarbon ProjectNagoya University Chikusa Nagoya 464-8602 Japan
| | - Kenichiro Itami
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
- JST-ERATOItami Molecular Nanocarbon ProjectNagoya University Chikusa Nagoya 464-8602 Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM)Nagoya University Chikusa Nagoya 464-8601 Japan
| |
Collapse
|
34
|
Li B, Jiang S, Gao J, Wu X, Deng J, Zhang L, Yu Z. Dual Colorimetric/Fluorometric Double-Throw pH-Switches: The Dimroth Rearrangement of N,9-Diaryl 8-Azaadenines. Chempluschem 2020; 84:427-431. [PMID: 31939209 DOI: 10.1002/cplu.201900117] [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: 02/19/2019] [Revised: 04/03/2019] [Indexed: 11/10/2022]
Abstract
A library of 12N,9-Diaryl 2-methyl-8-azaadenine (DAMA) compounds was designed and constructed through an aryl-pairing combination strategy for identifying a nucleobase-containing molecular switch that functions by the pH-regulated Dimroth rearrangement. By utilizing 2D thin-layer chromatography/mass spectrometry (2D-TLC-MS), the DAMA compounds were easily screened to identify which compounds could be used as molecular switches. The pH-switching ability of the DAMA was achieved by incorporating the acridine group as the key structural unit, as well as dual-modal colorimetric/fluorometric on/off properties as the probe functions. The real-time tracing of the switching process clearly indicated that the paired aromatics on both terminals of the DAMA molecule play a key role in tuning the switching kinetics.
Collapse
Affiliation(s)
- Bo Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Shichao Jiang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Jingshuo Gao
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Xueting Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Jiajie Deng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Linmeng Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Zhipeng Yu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| |
Collapse
|
35
|
Hu T, Ye Z, Zhu K, Xu K, Wu Y, Zhang F. Synthesis of Tribenzo[ b, d, f]azepines via Cascade π-Extended Decarboxylative Annulation Involving Cyclic Diaryliodonium Salts. Org Lett 2020; 22:505-509. [PMID: 31904242 DOI: 10.1021/acs.orglett.9b04269] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Various functionalized tribenzo[b,d,f]azepines were prepared efficiently with the readily available 2-aminobenzoic acids and cyclic hypervalent diaryliodonium reagents as starting materials under Pd(II) catalysis. The key of this step-economical protocol is that the carboxylic acid functionality was employed as both a traceless directing group for the N-H activation/arylation and a functional handle for the tandem π-extended decarboxylative annulation.
Collapse
Affiliation(s)
- Tao Hu
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P.R. China
| | - Zenghui Ye
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P.R. China
| | - Kai Zhu
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P.R. China
| | - Kai Xu
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P.R. China
| | - Yanqi Wu
- Institute of Information Resource , Zhejiang University of Technology , Hangzhou 310014 , P.R. China
| | - Fengzhi Zhang
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P.R. China
| |
Collapse
|
36
|
Wang G, Xiong B, Zhou C, Liu Y, Xu W, Yang C, Tang K, Wong W. Copper‐Catalyzed Diphenylation of P(O)‐OH Bonds with Cyclic Diaryliodonium Salts. Chem Asian J 2019; 14:4365-4374. [PMID: 31646736 DOI: 10.1002/asia.201901284] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/21/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Gang Wang
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang 414006 P. R. China
| | - Biquan Xiong
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang 414006 P. R. China
- Department of Applied Biology and Chemical TechnologyThe Hong Kong Polytechnic University Hung Hom Hong Kong P. R. China
| | - Congshan Zhou
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang 414006 P. R. China
| | - Yu Liu
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang 414006 P. R. China
| | - Weifeng Xu
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang 414006 P. R. China
| | - Chang‐An Yang
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang 414006 P. R. China
| | - Ke‐Wen Tang
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang 414006 P. R. China
| | - Wai‐Yeung Wong
- Department of Applied Biology and Chemical TechnologyThe Hong Kong Polytechnic University Hung Hom Hong Kong P. R. China
| |
Collapse
|
37
|
Ye Z, Li Y, Xu K, Chen N, Zhang F. Cascade π-Extended Decarboxylative Annulation Involving Cyclic Diaryliodonium Salts: Site-Selective Synthesis of Phenanthridines and Benzocarbazoles via a Traceless Directing Group Strategy. Org Lett 2019; 21:9869-9873. [PMID: 31774290 DOI: 10.1021/acs.orglett.9b03775] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel cascade π-extended decarboxylative annulation (PEDA) involved with cyclic diaryliodonium salts is described. Via fine-tuning of the reaction conditions, the Pd(II)-catalyzed site-selective N1/C2 or C2/C3 annulation of commercially available indole-2-carboxylic acids can be achieved, affording valuable phenanthridines or benzocarbazoles, respectively. The key strategy is the carboxylic acid functionality being employed as both a traceless directing group for the ortho C-N or C-C coupling and a reactive group for the cascade π-extended decarboxylative annulation in a highly step economical manner.
Collapse
Affiliation(s)
- Zenghui Ye
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Yong Li
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Kai Xu
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Na Chen
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Fengzhi Zhang
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| |
Collapse
|
38
|
Jafarpour F, Izadidana S, Ghasemi M. Palladium/norbornene cooperative catalysis for ortho/ipso multifunctionalization of carbazoles. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02501-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
39
|
Guan H, Cao X, Walsh PJ, Mao J. One-Pot Aminoalkylation of Aldehydes: Diastereoselective Synthesis of Vicinal Diamines with Azaarylmethylamines. Org Lett 2019; 21:8679-8683. [DOI: 10.1021/acs.orglett.9b03287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Haixing Guan
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P.R. China
| | - Xianzhong Cao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P.R. China
| | - Patrick J. Walsh
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Jianyou Mao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P.R. China
| |
Collapse
|
40
|
Virant M, Košmrlj J. Arylation of Click Triazoles with Diaryliodonium Salts. J Org Chem 2019; 84:14030-14044. [DOI: 10.1021/acs.joc.9b02197] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Miha Virant
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI 1000 Ljubljana, Slovenia
| | - Janez Košmrlj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI 1000 Ljubljana, Slovenia
| |
Collapse
|
41
|
Hu T, Xu K, Ye Z, Zhu K, Wu Y, Zhang F. Two-in-One Strategy for the Pd(II)-Catalyzed Tandem C-H Arylation/Decarboxylative Annulation Involved with Cyclic Diaryliodonium Salts. Org Lett 2019; 21:7233-7237. [PMID: 31479281 DOI: 10.1021/acs.orglett.9b02429] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We report here a two-in-one strategy for the Pd(II)-catalyzed tandem C-H arylation/decarboxylative annulation between readily available cyclic diaryliodonium salts and benzoic acids. The carboxylic acid functionality can be used as both a directing group for the ortho-C-H arylation and the reactive group for the tandem decarboxylative annulation. By a step-economical double cross-coupling annulation procedure, the privileged triphenylene frameworks were efficiently constructed, which have potential applications in material chemistry.
Collapse
Affiliation(s)
- Tao Hu
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Kai Xu
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Zenghui Ye
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Kai Zhu
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Yanqi Wu
- Institute of Information Resource , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Fengzhi Zhang
- College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| |
Collapse
|
42
|
Kepski K, Rice CR, Moran WJ. Cyclic Vinyl(aryl)iodonium Salts: Synthesis and Reactivity. Org Lett 2019; 21:6936-6939. [DOI: 10.1021/acs.orglett.9b02540] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Konrad Kepski
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, U.K
| | - Craig R. Rice
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, U.K
| | - Wesley J. Moran
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, U.K
| |
Collapse
|
43
|
Häfliger J, Pitts CR, Bornemann D, Käser R, Santschi N, Charpentier J, Otth E, Trapp N, Verel R, Lüthi HP, Togni A. Substituent-controlled, mild oxidative fluorination of iodoarenes: synthesis and structural study of aryl I(iii)- and I(v)-fluorides. Chem Sci 2019; 10:7251-7259. [PMID: 31588294 PMCID: PMC6685355 DOI: 10.1039/c9sc02162k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 05/23/2019] [Indexed: 11/21/2022] Open
Abstract
We report a mild approach to the synthesis of difluoro(aryl)-λ3-iodanes (aryl-IF2 compounds) and tetrafluoro(aryl)-λ5-iodanes (aryl-IF4 compounds) using trichloroisocyanuric acid (TCICA) and potassium fluoride (KF). Under these reaction conditions, selective access to either the I(iii)- or I(v)-derivatives is predictable based solely on the substitution pattern of the iodoarene starting material. Moreover, the discovery of this TCICA/KF approach prompted detailed dynamic NMR, kinetic, computational, and crystallographic studies on the relationship between the IF2 group and the ortho-substituents on carefully designed probe molecules. It was during these experiments that the role of the ortho-substituent in inhibiting further oxidative fluorination of I(iii)-compounds to I(v)-compounds during the reaction with TCICA and KF was revealed. Additionally, a notable exception to this empirical trend is discussed herein.
Collapse
Affiliation(s)
- Joel Häfliger
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland .
| | - Cody Ross Pitts
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland .
| | - Dustin Bornemann
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland .
| | - Roland Käser
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland .
| | - Nico Santschi
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland .
| | - Julie Charpentier
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland .
| | - Elisabeth Otth
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland .
| | - Nils Trapp
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland .
| | - René Verel
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland .
| | - Hans Peter Lüthi
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland .
| | - Antonio Togni
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland .
| |
Collapse
|
44
|
Zhu D, Li M, Wu Z, Du Y, Luo B, Huang P, Wen S. Copper-Catalyzed One-Pot Synthesis of Dibenzofurans, Xanthenes, and Xanthones from Cyclic Diphenyl Iodoniums. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900745] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Daqian Zhu
- School of pharmacy; Guangdong Pharmaceutical University; 280 Waihuan East Road 510006 Guangzhou China
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University, Cancer Center; 651 Dongfeng East Road 510060 Guangzhou China
| | - Min Li
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University, Cancer Center; 651 Dongfeng East Road 510060 Guangzhou China
- Collaborative Innovation Center for Cancer Medicine; Changsha Medical University; 1501 Leifeng Road 410219 Changsha China
| | - Zhouming Wu
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University, Cancer Center; 651 Dongfeng East Road 510060 Guangzhou China
| | - Yongliang Du
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University, Cancer Center; 651 Dongfeng East Road 510060 Guangzhou China
| | - Bingling Luo
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University, Cancer Center; 651 Dongfeng East Road 510060 Guangzhou China
| | - Peng Huang
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University, Cancer Center; 651 Dongfeng East Road 510060 Guangzhou China
| | - Shijun Wen
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University, Cancer Center; 651 Dongfeng East Road 510060 Guangzhou China
| |
Collapse
|
45
|
Volkov PA, Telezhkin AA, Ivanova NI, Khrapova KO, Gusarova NK, Trofimov BA. Unexpected Reaction of Secondary Phosphine Chalcogenides with Acridine. RUSS J GEN CHEM+ 2019. [DOI: 10.1134/s1070363219030290] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
46
|
Zhu K, Xu K, Fang Q, Wang Y, Tang B, Zhang F. Enantioselective Synthesis of Axially Chiral Biaryls via Cu-Catalyzed Acyloxylation of Cyclic Diaryliodonium Salts. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00695] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kai Zhu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Kai Xu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Qi Fang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yi Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Bencan Tang
- Department of Chemical and Environment Engineering, The University of Nottingham Ningbo China, Ningbo 315100, P. R. China
| | - Fengzhi Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| |
Collapse
|
47
|
Flader A, Ohlendorf L, Ehlers P, Ammon E, Villinger A, Langer P. Brønsted Acid Mediated Synthesis and Properties of Dibenzoacridine Derivatives. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Anika Flader
- Universität RostockInstitut für Chemie Albert-Einstein-Str. 3a 18059 Rostock
- Leibniz-Institut für Katalyse e.V. an derUniversität Rostock Albert-Einstein-Str. 29a 18059 Rostock
| | - Lars Ohlendorf
- Universität RostockInstitut für Chemie Albert-Einstein-Str. 3a 18059 Rostock
| | - Peter Ehlers
- Universität RostockInstitut für Chemie Albert-Einstein-Str. 3a 18059 Rostock
- Leibniz-Institut für Katalyse e.V. an derUniversität Rostock Albert-Einstein-Str. 29a 18059 Rostock
| | - Erich Ammon
- Universität RostockInstitut für Chemie Albert-Einstein-Str. 3a 18059 Rostock
| | - Alexander Villinger
- Universität RostockInstitut für Chemie Albert-Einstein-Str. 3a 18059 Rostock
| | - Peter Langer
- Universität RostockInstitut für Chemie Albert-Einstein-Str. 3a 18059 Rostock
- Leibniz-Institut für Katalyse e.V. an derUniversität Rostock Albert-Einstein-Str. 29a 18059 Rostock
| |
Collapse
|
48
|
Zhang L, Liu T, Wang YM, Chen J, Zhao YL. Rhodium-Catalyzed Coupling–Cyclization of Alkenyldiazoacetates with o-Alkenyl Arylisocyanides: A General Route to Carbazoles. Org Lett 2019; 21:2973-2977. [DOI: 10.1021/acs.orglett.9b00307] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Lu Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Tao Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yi-Ming Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jing Chen
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| |
Collapse
|
49
|
Yang Y, Huang J, Tan H, Kong L, Wang M, Yuan Y, Li Y. Synthesis of cyano-substituted carbazoles via successive C-C/C-H cleavage. Org Biomol Chem 2019; 17:958-965. [PMID: 30631868 DOI: 10.1039/c8ob03031f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A highly efficient protocol for the synthesis of polysubstituted cyano carbazoles has been developed. This process is realized through the tandem reactions of Cs2CO3 promoted C-C σ-bond activation of α-cyano ketones followed by Fe-catalyzed selective C-H and/or C-C bond activations. Two of the sp2 C-H bonds are functionalized, and two of the C-C σ-bonds are cleaved involving a 1,2-acyl migration during the reaction process.
Collapse
Affiliation(s)
- Yajie Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
| | | | | | | | | | | | | |
Collapse
|
50
|
Zhu H, Shen Y, Wen D, Le ZG, Tu T. Selective Synthesis of ortho-Substituted Diarylsulfones by Using NHC-Au Catalysts under Mild Conditions. Org Lett 2019; 21:974-979. [DOI: 10.1021/acs.orglett.8b03957] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Haibo Zhu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
- School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, China
| | - Yajing Shen
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Daheng Wen
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Zhang-Gao Le
- School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, China
| | - Tao Tu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|