1
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Nunewar S, Kumar S, Meshram AW, Kanchupalli V. Ru(II)-Catalyzed C–H Functionalization of 2-Arylbenzimidazoles with Iodonium Ylides: A Straightforward Access to Bridgehead Polycyclic N-Heterocycles. J Org Chem 2022; 87:13757-13762. [DOI: 10.1021/acs.joc.2c01429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Saiprasad Nunewar
- National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, Telangana, India
| | - Sanjeev Kumar
- National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, Telangana, India
| | - Akhilesh Waman Meshram
- National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, Telangana, India
| | - Vinaykumar Kanchupalli
- National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, Telangana, India
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2
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Ghosh T, Biswas D, Bhakta S. Palladium-Catalyzed Synthesis of Fused Carbo- and Heterocycles: Recent Advances. Chem Asian J 2022; 17:e202200725. [PMID: 36065137 DOI: 10.1002/asia.202200725] [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: 07/10/2022] [Revised: 09/03/2022] [Indexed: 11/10/2022]
Abstract
The use of palladium catalysts in fused ring synthesis has been increasingly noteworthy in recent years in organic synthesis. It has a lot of potential compared to other transition metal catalysts, because of its one-of-a-kind feature that makes them more widely applicable in a variety of disciplines application. Palladium is important in a variety of Heck processes, including intramolecular, intermolecular, and reductive Heck reactions, which produce diverse carbocycles and heterocycles of biological importance. Under optimal reaction conditions, carbocyclization or heterocyclization occurs, resulting in the production of numerous structural building blocks of naturally occurring compounds. Beside intramolecular Heck-type reactions, cycloaddition, cycloalkylation, oxidative coupling, C-H functionalization, cross-coupling reactions, and carboamidation reactions have also been employed extensively to access fused carbo- and heterocycles of immense biological importance. This review article provides a well-summarized discussion (since 2001) on fused carbo- and heterocycle ring synthesis using palladium catalysts, overviewing their applications, and mechanistic insights.
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Affiliation(s)
- Tapas Ghosh
- Maulana Abul Kalam Azad University of Technology, Applied Sciences, Simhat, Haringhata, 741249, Haringhata, INDIA
| | - Diptam Biswas
- Maulana Abul Kalam Azad University of Technology, Applied Chemistry, INDIA
| | - Sayantika Bhakta
- Maulana Abul Kalam Azad University of Technology, Applied Chemistry, INDIA
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3
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Recent Advances in the Synthesis of Isoquinoline-Fused Benzimidazoles. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072062. [PMID: 35408460 PMCID: PMC9000694 DOI: 10.3390/molecules27072062] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/12/2022] [Accepted: 03/16/2022] [Indexed: 11/30/2022]
Abstract
This review includes recent developments in the synthesis of benzo[4,5]imidazo[2,1-a]isoquinolines with particular attention given to categorizing protocols based on the structural features of the ring architecture and crystallographically characterized reaction products.
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4
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Liu H, Li Z. Copper-Catalyzed Construction of Benzo[4,5]imidazo[2,1- a]isoquinolines Using Calcium Carbide as a Solid Alkyne Source. Org Lett 2021; 23:8407-8412. [PMID: 34633205 DOI: 10.1021/acs.orglett.1c03133] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A method for the synthesis of benzo[4,5]imidazo[2,1-a]isoquinolines through Sonogashira cross-coupling/nucleophilic addition tandem reactions using calcium carbide as a solid alkyne source, 2-(2-bromophenyl)benzimidazoles as starting materials, and copper as a catalyst is described. The target products can also be synthesized through one-pot three-component reactions of o-phenylenediamines, o-bromobenzaldehydes, and calcium carbide. Both reaction routes can also be scaled up to gram scale.
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Affiliation(s)
- Haiyan Liu
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China
| | - Zheng Li
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China
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5
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Sonawane AD, Sonawane RA, Win KMN, Ninomiya M, Koketsu M. In situ air oxidation and photophysical studies of isoquinoline-fused N-heteroacenes. Org Biomol Chem 2020; 18:2129-2138. [PMID: 32134103 DOI: 10.1039/d0ob00375a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient, metal free and environment friendly synthesis of isoquinoline-fused benzimidazole has been developed via in situ air oxidation. Also, syntheses of isoquinoline-fused quinazolinone heteroacenes were successfully achieved. The synthesized isoquinoline-fused benzimidazole and isoquinoline-fused quinazolinone derivatives showed λmax, Fmax and Φf values in the ranges 356-394 nm, 403-444 nm and 0.063-0.471, respectively, in CHCl3.
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Affiliation(s)
- Amol D Sonawane
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu 501-1193, Japan.
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6
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Diep TD, Dao PDQ, Cho CS. Synthesis of Binuclear Isoquinoline- and Pyridine-Fused Benzimidazole-4,7-diones by Magnetic MOF-199-Catalyzed C-C Coupling/Cyclization Followed by Oxidation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900635] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Thi Duyen Diep
- Department of Applied Chemistry; Kyungpook National University; 80 Daehakro, Bukgu 41566 Daegu Republic of Korea
| | - Pham Duy Quang Dao
- Department of Applied Chemistry; Kyungpook National University; 80 Daehakro, Bukgu 41566 Daegu Republic of Korea
| | - Chan Sik Cho
- Department of Applied Chemistry; Kyungpook National University; 80 Daehakro, Bukgu 41566 Daegu Republic of Korea
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7
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Shinde VN, Dhiman S, Krishnan R, Kumar D, Kumar A. Synthesis of imidazopyridine-fused indoles via one-pot sequential Knoevenagel condensation and cross dehydrogenative coupling. Org Biomol Chem 2019; 16:6123-6132. [PMID: 30094426 DOI: 10.1039/c8ob01449c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A simple and efficient strategy for the synthesis of imidazopyridine-fused indoles has been developed that involves one-pot sequential Knoevenagel condensation of readily available active methylene azoles with N-substituted-1H-indole-3-carboxaldehydes or N-substituted-1H-indole-2-carboxaldehydes followed by palladium-catalyzed intramolecular cross dehydrogenative coupling reaction. A series of 36 derivatives was prepared by using this strategy. The products were obtained in moderate to excellent (32-94%) yields and showed broad substrate scope with tolerance of various functional groups and was amiable for gram scale preparation without problems.
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Affiliation(s)
- Vikki N Shinde
- Department of Chemistry, BITS Pilani, Pilani Campus, Pilani 333031, India.
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8
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9
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Laha JK, Sharma S. Palladium-Catalyzed Intramolecular Oxidative Arylations for the Synthesis of Fused Biaryl Sulfones. ACS OMEGA 2018; 3:4860-4870. [PMID: 31458702 PMCID: PMC6641745 DOI: 10.1021/acsomega.8b00628] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 04/23/2018] [Indexed: 05/06/2023]
Abstract
This study unveils palladium-catalyzed intramolecular oxidative cyclizations in biaryl and heterobiaryl sulfones providing direct access to fused biaryl sulfones (dibenzothiophene-5,5-dioxides). Variously substituted dibenzothiophene-5,5-dioxides could be readily prepared in good to excellent yields under optimized conditions. In addition, bromination afforded dibromo derivative of dibenzothiophene-5,5-dioxides, providing platform for late-stage diversification. The translational applications of this current protocol have successfully been demonstrated in the synthesis of 2,8-diamino derivative of dibenzothiophene-5,5-dioxides, a α7-nicotinic acetylcholine receptor agonist analogue, and novel single fluorene-tethered dibenzothiophene-5,5-dioxide, an organic emitter.
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10
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Żyła-Karwowska M, Moshniaha L, Zhylitskaya H, Stępień M. Pd-Induced Double C–H Bond Activation in Annulative Syntheses of Bipyrrole Boomerangs: Mechanistic Insights from NMR Spectroscopy and Computation. J Org Chem 2018; 83:5199-5209. [DOI: 10.1021/acs.joc.8b00630] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Marika Żyła-Karwowska
- Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Liliia Moshniaha
- Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Halina Zhylitskaya
- Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Marcin Stępień
- Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
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11
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Wang HC, Tao J, Bai WY, Xie ZY, Li H, Ren X, Xu YX. Synthesis of a Thiophene Analogue of Isoindigo by C-H Activation/Oxidative Cyclization and Application of Its Copolymeric Materials to Organic Transistors. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701663] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Hua-Chun Wang
- College of Polymer Science & Engineering; State Key Laboratory of Polymer Materials Engineering; Sichuan University; 610065 Chengdu China
| | - Jingwei Tao
- Key Laboratory of Synthetic and Self-Assembly; Chemistry for Organic Functional Molecules; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 200032 Shanghai China
| | - Wei-Yun Bai
- College of Polymer Science & Engineering; State Key Laboratory of Polymer Materials Engineering; Sichuan University; 610065 Chengdu China
| | - Zi-Yi Xie
- College of Polymer Science & Engineering; State Key Laboratory of Polymer Materials Engineering; Sichuan University; 610065 Chengdu China
| | - Hongxiang Li
- Key Laboratory of Synthetic and Self-Assembly; Chemistry for Organic Functional Molecules; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 200032 Shanghai China
| | - Xiancheng Ren
- College of Polymer Science & Engineering; State Key Laboratory of Polymer Materials Engineering; Sichuan University; 610065 Chengdu China
| | - Yun-Xiang Xu
- College of Polymer Science & Engineering; State Key Laboratory of Polymer Materials Engineering; Sichuan University; 610065 Chengdu China
- Key Laboratory of Synthetic and Self-Assembly; Chemistry for Organic Functional Molecules; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 200032 Shanghai China
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12
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Yang BW, Quang Dao PD, Yoon NS, Cho CS. Copper-catalyzed C-C coupling and cyclization: Synthesis of benzo[4,5]imidazo[1,2-a]pyridines and benzo[4,5]imidazo[2,1-a]isoquinolines. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.09.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Synthesis of benzo[4, 5]imidazo[2,1-a]isoquinolines via intramolecular C–H bond functionalization. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2101-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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14
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Liu J, Zhao S, Song W, Li R, Guo X, Zhuo K, Yue Y. Silver-Catalyzed Carbon-Phosphorus Functionalization for Polyheterocycle Formation. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600850] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Jianming Liu
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University; Xinxiang, Henan 453007 People's Republic of China
| | - Shanshan Zhao
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University; Xinxiang, Henan 453007 People's Republic of China
| | - Weiwei Song
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University; Xinxiang, Henan 453007 People's Republic of China
| | - Rong Li
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University; Xinxiang, Henan 453007 People's Republic of China
| | - Xinyu Guo
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University; Xinxiang, Henan 453007 People's Republic of China
| | - Kelei Zhuo
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University; Xinxiang, Henan 453007 People's Republic of China
| | - Yuanyuan Yue
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University; Xinxiang, Henan 453007 People's Republic of China
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15
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Abstract
Transition metal-mediated C-H bond activation and functionalization represent one of the most straightforward and powerful tools in modern organic synthetic chemistry. Bi(hetero)aryls are privileged π-conjugated structural cores in biologically active molecules, organic functional materials, ligands, and organic synthetic intermediates. The oxidative C-H/C-H coupling reactions between two (hetero)arenes through 2-fold C-H activation offer a valuable opportunity for rapid assembly of diverse bi(hetero)aryls and further exploitation of their applications in pharmaceutical and material sciences. This review provides a comprehensive overview of the fundamentals and applications of transition metal-mediated/catalyzed oxidative C-H/C-H coupling reactions between two (hetero)arenes. The substrate scope, limitation, reaction mechanism, regioselectivity, and chemoselectivity, as well as related control strategies of these reactions are discussed. Additionally, the applications of these established methods in the synthesis of natural products and exploitation of new organic functional materials are exemplified. In the last section, a short introduction on oxidant- or Lewis acid-mediated oxidative Ar-H/Ar-H coupling reactions is presented, considering that it is a very powerful method for the construction of biaryl units and polycylic arenes.
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Affiliation(s)
- Yudong Yang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Jingbo Lan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
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16
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Kaishap PP, Duarah G, Chetia D, Gogoi S. Ru(ii)-Catalyzed annulation of benzamidines and alkynes by C–H/N–H activation: a facile synthesis of 1-aminoisoquinolines. Org Biomol Chem 2017; 15:3491-3498. [DOI: 10.1039/c7ob00389g] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Ru(ii)-Catalyzed annulation reaction of benzamidines and disubstituted alkynes affords 1-aminoisoquinolines.
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Affiliation(s)
- P. P. Kaishap
- Applied Organic Chemistry
- Chemical Sciences & Technology Division
- CSIR-North East Institute of Science and Technology
- AcSIR
- Jorhat-785006
| | - G. Duarah
- Applied Organic Chemistry
- Chemical Sciences & Technology Division
- CSIR-North East Institute of Science and Technology
- AcSIR
- Jorhat-785006
| | - D. Chetia
- Department of Pharm. Sciences
- Dibrugarh University
- Dibrugarh
- India
| | - S. Gogoi
- Applied Organic Chemistry
- Chemical Sciences & Technology Division
- CSIR-North East Institute of Science and Technology
- AcSIR
- Jorhat-785006
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17
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Laha JK, Bhimpuria RA, Hunjan MK. Intramolecular Oxidative Arylations in 7-Azaindoles and Pyrroles: Revamping the Synthesis of Fused N
-Heterocycle Tethered Fluorenes. Chemistry 2016; 23:2044-2050. [DOI: 10.1002/chem.201604192] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical Technology (Process Chemistry); National Institute of Pharmaceutical Educational and Research (NIPER); S.A. S. Nagar Mohali- 160062 India
| | - Rohan A. Bhimpuria
- Department of Pharmaceutical Technology (Process Chemistry); National Institute of Pharmaceutical Educational and Research (NIPER); S.A. S. Nagar Mohali- 160062 India
| | - Mandeep Kaur Hunjan
- Department of Pharmaceutical Technology (Process Chemistry); National Institute of Pharmaceutical Educational and Research (NIPER); S.A. S. Nagar Mohali- 160062 India
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18
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Wang Z, Li B, Zhang X, Fan X. One-Pot Cascade Reactions Leading to Pyrido[2′,1′:2,3]imidazo[4,5-c][1,2,3]triazolo[1,5-a]quinolines under Bimetallic Relay Catalysis with Air as the Oxidant. J Org Chem 2016; 81:6357-63. [DOI: 10.1021/acs.joc.6b00996] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ze Wang
- School of Chemistry and Chemical
Engineering, Collaborative Innovation Center of Henan Province for
Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical
Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, China
| | - Bin Li
- School of Chemistry and Chemical
Engineering, Collaborative Innovation Center of Henan Province for
Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical
Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xinying Zhang
- School of Chemistry and Chemical
Engineering, Collaborative Innovation Center of Henan Province for
Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical
Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xuesen Fan
- School of Chemistry and Chemical
Engineering, Collaborative Innovation Center of Henan Province for
Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical
Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, China
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19
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Bagdasarian AL, Nguyen HH, Palazzo TA, Fettinger JC, Haddadin MJ, Kurth MJ. One-Pot Synthesis of Benzo[4,5]imidazo[2,1-a]isoquinolines and Isoquinolino[3,4-b]quinoxalines via Tandem Cyclization Strategies. J Org Chem 2016; 81:3924-8. [PMID: 27030441 DOI: 10.1021/acs.joc.6b00338] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Two operationally simple one-pot protocols have been developed for the synthesis of amino-functionalized benzo[4,5]imidazo[2,1-a]isoquinolines and isoquinolino[3,4-b]quinoxalines. Optimization data and substrate scope for these atom-economical transformations, which engage commercially available o-phenylenediamines and o-cyanobenzaldehydes, are discussed.
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Affiliation(s)
- Alex L Bagdasarian
- Department of Chemistry, University of California , One Shields Avenue, Davis, California 95616, United States
| | - Huy H Nguyen
- Department of Chemistry, University of California , One Shields Avenue, Davis, California 95616, United States
| | - Teresa A Palazzo
- Department of Chemistry, University of California , One Shields Avenue, Davis, California 95616, United States
| | - James C Fettinger
- Department of Chemistry, University of California , One Shields Avenue, Davis, California 95616, United States
| | - Makhluf J Haddadin
- Department of Chemistry, American University of Beirut , Beirut 1107 2020, Lebanon
| | - Mark J Kurth
- Department of Chemistry, University of California , One Shields Avenue, Davis, California 95616, United States
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20
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Saito K, Chikkade PK, Kanai M, Kuninobu Y. Palladium-Catalyzed Construction of Heteroatom-Containing π-Conjugated Systems by Intramolecular Oxidative CH/CH Coupling Reaction. Chemistry 2015; 21:8365-8. [DOI: 10.1002/chem.201501116] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Indexed: 12/23/2022]
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21
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Dhiman S, Pericherla K, Nandwana NK, Kumar D, Kumar A. Synthesis of Aza-Fused Isoquinolines through Domino Cross-Aldol Condensation and Palladium-Catalyzed Intramolecular Direct Arylation. J Org Chem 2014; 79:7399-404. [DOI: 10.1021/jo501119f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shiv Dhiman
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, 333031 Rajasthan, India
| | | | - Nitesh K. Nandwana
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, 333031 Rajasthan, India
| | - Dalip Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, 333031 Rajasthan, India
| | - Anil Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, 333031 Rajasthan, India
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22
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Chen C, Shang G, Zhou J, Yu Y, Li B, Peng J. Modular Synthesis of Benzimidazole-Fused Phenanthridines from 2-Arylbenzimidazoles and o-Dibromoarenes by a Palladium-Catalyzed Cascade Process. Org Lett 2014; 16:1872-5. [DOI: 10.1021/ol500248h] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Chunxia Chen
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Guoning Shang
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Jingjie Zhou
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Yanhan Yu
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Bin Li
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Jinsong Peng
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
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23
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Pereira KC, Porter AL, DeBoef B. Intramolecular arylation of benzimidazoles via Pd(II)/Cu(I) catalyzed cross-dehydrogenative coupling. Tetrahedron Lett 2014; 55:1729-1732. [PMID: 24764603 PMCID: PMC3993984 DOI: 10.1016/j.tetlet.2014.01.103] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Electron poor benzimidazole substrates were arylated via an intramolecular cross-dehydrogenative coupling (CDC) reaction. These CDC reactions were catalyzed by a Pd(II)/Cu(I) catalyst system, capable of producing moderate yields on a large library of substrates. The substrate scope consisted of tethered arene-benzimidazoles that upon coupling, produced a fused polycyclic motif.
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Affiliation(s)
- Kyle C. Pereira
- Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA
| | - Ashley L. Porter
- Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA
| | - Brenton DeBoef
- Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA
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Liu J, Zhang N, Yue Y, Liu G, Liu R, Zhang Y, Zhuo K. One-Pot Synthesis of Benzimidazo[1,2-f]phenanthridines by Cascade Palladium-CatalyzedN-Arylation and Intramolecular C-H Coupling. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301147] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Lu L, Yan H, Liu D, Rong G, Mao J. Transition-Metal-Free Synthesis ofN-(1-Alkenyl)imidazoles by Potassium Phosphate-Promoted Addition Reaction of Alkynes to Imidazoles. Chem Asian J 2013; 9:75-8. [DOI: 10.1002/asia.201301173] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Indexed: 01/02/2023]
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26
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Wu Y, Wang J, Mao F, Kwong FY. Palladium-Catalyzed Cross-Dehydrogenative Functionalization of C(sp2)H Bonds. Chem Asian J 2013; 9:26-47. [DOI: 10.1002/asia.201300990] [Citation(s) in RCA: 236] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Indexed: 12/17/2022]
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Kethe A, Naredla RR, Klumpp DA. Superacid-Promoted Cyclodehydration Leading to the Imidazo[2,1-a]isoquinoline Ring System. Helv Chim Acta 2013. [DOI: 10.1002/hlca.201200590] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Mao X, Ma X, Zhang S, Hu H, Zhu C, Cheng Y. Silver-Catalyzed Highly Regioselective Phosphonation of Arenes Bearing Electron-Withdrawing Groups. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300545] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Zhao D, Zhu MX, Wang Y, Shen Q, Li JX. Pd(0)-catalyzed benzylic arylation–oxidation of 4-methylquinazolines via sp3 C–H activation under air conditions. Org Biomol Chem 2013; 11:6246-9. [DOI: 10.1039/c3ob41488d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Reddy VP, Iwasaki T, Kambe N. Synthesis of imidazo and benzimidazo[2,1-a]isoquinolines by rhodium-catalyzed intramolecular double C–H bond activation. Org Biomol Chem 2013; 11:2249-53. [DOI: 10.1039/c3ob27396b] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Pericherla K, Khedar P, Khungar B, Kumar A. One-pot sequential C–N coupling and cross dehydrogenative couplings: synthesis of novel azole fused imidazo[1,2-a]pyridines. Chem Commun (Camb) 2013; 49:2924-6. [DOI: 10.1039/c3cc39206f] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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