1
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An Z, Miao M, Sun F, Lan XB, Yu JQ, Guo X, Zhang J. Copper-catalyzed oxidative cyclization of 2-(1 H-pyrrol-1-yl)aniline and alkylsilyl peroxides: a route to pyrrolo[1,2- a]quinoxalines. Org Biomol Chem 2024; 22:2370-2374. [PMID: 38416487 DOI: 10.1039/d3ob01934a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
An efficient method was developed for the one-pot construction of pyrrolo[1,2-a]quinoxalines via a Cu(II)-catalyzed domino reaction between 2-(1H-pyrrol-1-yl)anilines and alkylsilyl peroxides. This reaction proceeds through C-C bond cleavage and new C-C and C-N bond formation. A mechanistic study suggests that alkyl radical species participate in the cascade reaction.
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Affiliation(s)
- Zhenyu An
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Man Miao
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Fengkai Sun
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Xiao-Bing Lan
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Jian-Qiang Yu
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Xiaoli Guo
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
| | - Jian Zhang
- College of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China.
- Medicinal Chemistry and Bioinformatics Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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2
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Ryabukhin SV, Bondarenko DV, Trofymchuk SA, Lega DA, Volochnyuk DM. Aza-Heterocyclic Building Blocks with In-Ring CF 2 -Fragment. CHEM REC 2024; 24:e202300283. [PMID: 37873869 DOI: 10.1002/tcr.202300283] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/27/2023] [Indexed: 10/25/2023]
Abstract
Modern organic chemistry is a titan supporting and reinforcing pharmaceutical, agricultural, food and material science products. Over the past decades, the organic compounds market has been evolving to meet all the research demands. In this regard, medicinal chemistry is especially dependent on available chemical space as subtle tuning of the molecule structure is required to create a drug with relevant physicochemical properties and a remarkable activity profile. The recent rapid evolution of synthetic methodology to deploy fluorine has brought fluorinated compounds to the spotlight of MedChem community. And now unique properties of fluorine still keep fascinating more and more as its justified installation into a molecular framework has a beneficial impact on membrane permeability, lipophilicity, metabolic stability, pharmacokinetic properties, conformation, pKa , etc. The backward influence of medicinal chemistry on organic synthesis has also changed the landscape of the latter towards new fluorinated topologies as well. Such complex relationships create a flexible and ever-changing ecosystem. Given that MedChem investigations strongly lean on the ability to reach suitable building blocks and the existence of reliable synthetic methods in this review we collected advances in the chemistry of respectful, but still enigmatic gem-difluorinated aza-heterocyclic building blocks.
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Affiliation(s)
- S V Ryabukhin
- Enamine Ltd., 78 Winston Churchill str., 02094, Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska str., 01033, Kyiv, Ukraine
- Institute of Organic Chemistry of the, National Academy of Sciences of Ukraine, 5 Akademik Kukhar str., 02094, Kyiv, Ukraine
| | - D V Bondarenko
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska str., 01033, Kyiv, Ukraine
| | - S A Trofymchuk
- Enamine Ltd., 78 Winston Churchill str., 02094, Kyiv, Ukraine
- Institute of Organic Chemistry of the, National Academy of Sciences of Ukraine, 5 Akademik Kukhar str., 02094, Kyiv, Ukraine
| | - D A Lega
- Enamine Ltd., 78 Winston Churchill str., 02094, Kyiv, Ukraine
- National University of Pharmacy of the Ministry of Health of Ukraine, 53 Pushkinska str., 61002, Kharkiv, Ukraine
| | - D M Volochnyuk
- Enamine Ltd., 78 Winston Churchill str., 02094, Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska str., 01033, Kyiv, Ukraine
- Institute of Organic Chemistry of the, National Academy of Sciences of Ukraine, 5 Akademik Kukhar str., 02094, Kyiv, Ukraine
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3
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Damai M, Guzzardi N, Lewis V, Rao ZX, Sykes D, Patel B. Crafting mono- and novel bis-methylated pyrroloquinoxaline derivatives from a shared precursor and its application in the total synthesis of marinoquinoline A. RSC Adv 2023; 13:29561-29567. [PMID: 37822662 PMCID: PMC10562898 DOI: 10.1039/d3ra05952a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/03/2023] [Indexed: 10/13/2023] Open
Abstract
The synthesis of mono- and novel bis-methylated pyrrolo[1,2-a]quinoxalines through the addition of unstable methyl radicals to aryl isocyanides is described contingent upon the reaction conditions employed. The strategy has been effectively employed in the total synthesis of the natural product marinoquinoline A.
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Affiliation(s)
- Margarita Damai
- School of Human Sciences, London Metropolitan University 166-220 Holloway Road London N7 8DB UK
| | - Norman Guzzardi
- School of Human Sciences, London Metropolitan University 166-220 Holloway Road London N7 8DB UK
| | - Viliyana Lewis
- School of Human Sciences, London Metropolitan University 166-220 Holloway Road London N7 8DB UK
| | - Zenobia X Rao
- School of Human Sciences, London Metropolitan University 166-220 Holloway Road London N7 8DB UK
| | - Daniel Sykes
- School of Human Sciences, London Metropolitan University 166-220 Holloway Road London N7 8DB UK
| | - Bhaven Patel
- School of Human Sciences, London Metropolitan University 166-220 Holloway Road London N7 8DB UK
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4
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Gorle S, V.N. CS, L. VR, K. RR, Akula R. Glucose as an eco-friendly reducing agent for a one-pot multicomponent synthesis of quinoxalines. SYNTHETIC COMMUN 2023. [DOI: 10.1080/00397911.2023.2176237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Affiliation(s)
- Simhachalam Gorle
- Technology Development Centre, APSL, Dr. Reddy’s Laboratories Ltd, Hyderabad, India
- Department of Chemistry, GIS, GITAM (Deemed to be University), Visakhapatnam, India
| | - Chandra Sekhar V.N.
- Technology Development Centre, APSL, Dr. Reddy’s Laboratories Ltd, Hyderabad, India
- Department of Chemistry, GIS, GITAM (Deemed to be University), Visakhapatnam, India
| | - Vaikunta Rao L.
- Department of Chemistry, GIS, GITAM (Deemed to be University), Visakhapatnam, India
| | - Raghavendra Rao K.
- Technology Development Centre, APSL, Dr. Reddy’s Laboratories Ltd, Hyderabad, India
| | - Raghunadh Akula
- Technology Development Centre, APSL, Dr. Reddy’s Laboratories Ltd, Hyderabad, India
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5
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Algieri V, Algieri C, Costanzo P, Fiorani G, Jiritano A, Olivito F, Tallarida MA, Trombetti F, Maiuolo L, De Nino A, Nesci S. Novel Regioselective Synthesis of 1,3,4,5-Tetrasubstituted Pyrazoles and Biochemical Valuation on F 1F O-ATPase and Mitochondrial Permeability Transition Pore Formation. Pharmaceutics 2023; 15:pharmaceutics15020498. [PMID: 36839821 PMCID: PMC9967880 DOI: 10.3390/pharmaceutics15020498] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/20/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
An efficient, eco-compatible, and very cheap method for the construction of fully substituted pyrazoles (Pzs) via eliminative nitrilimine-alkene 1,3-dipolar cycloaddition (ENAC) reaction was developed in excellent yield and high regioselectivity. Enaminones and nitrilimines generated in situ were selected as dipolarophiles and dipoles, respectively. A deep screening of the employed base, solvent, and temperature was carried out to optimize reaction conditions. Recycling tests of ionic liquid were performed, furnishing efficient performance until six cycles. Finally, a plausible mechanism of cycloaddition was proposed. Then, the effect of three different structures of Pzs was evaluated on the F1FO-ATPase activity and mitochondrial permeability transition pore (mPTP) opening. The Pz derivatives' titration curves of 6a, 6h, and 6o on the F1FO-ATPase showed a reduced activity of 86%, 35%, and 31%, respectively. Enzyme inhibition analysis depicted an uncompetitive mechanism with the typical formation of the tertiary complex enzyme-substrate-inhibitor (ESI). The dissociation constant of the ESI complex (Ki') in the presence of the 6a had a lower order of magnitude than other Pzs. The pyrazole core might set the specific mechanism of inhibition with the F1FO-ATPase, whereas specific functional groups of Pzs might modulate the binding affinity. The mPTP opening decreased in Pz-treated mitochondria and the Pzs' inhibitory effect on the mPTP was concentration-dependent with 6a and 6o. Indeed, the mPTP was more efficiently blocked with 0.1 mM 6a than with 1 mM 6a. On the contrary, 1 mM 6o had stronger desensitization of mPTP formation than 0.1 mM 6o. The F1FO-ATPase is a target of Pzs blocking mPTP formation.
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Affiliation(s)
- Vincenzo Algieri
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
- Correspondence: (V.A.); (A.D.N.)
| | - Cristina Algieri
- Department of Veterinary Medical Sciences, Mitochondrial Biochemistry Lab, Via Tolara di Sopra, 50, 40064 Ozzano Emilia, BO, Italy
| | - Paola Costanzo
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
| | - Giulia Fiorani
- Department Molecular Sciences and Nanosystems, University Ca’ Foscari Venezia, Via Torino 155, 30172 Venezia Mestre, VE, Italy
| | - Antonio Jiritano
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
| | - Fabrizio Olivito
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
| | - Matteo Antonio Tallarida
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
| | - Fabiana Trombetti
- Department of Veterinary Medical Sciences, Mitochondrial Biochemistry Lab, Via Tolara di Sopra, 50, 40064 Ozzano Emilia, BO, Italy
| | - Loredana Maiuolo
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
| | - Antonio De Nino
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
- Correspondence: (V.A.); (A.D.N.)
| | - Salvatore Nesci
- Department of Veterinary Medical Sciences, Mitochondrial Biochemistry Lab, Via Tolara di Sopra, 50, 40064 Ozzano Emilia, BO, Italy
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6
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Geng M, Huang M, Kuang J, Fang W, Miao M, Ma Y. Application of N, N-Dimethylethanolamine as a One-Carbon Synthon for the Synthesis of Pyrrolo[1,2- a]quinoxalines, Quinazolin-4-ones, and Benzo[4,5]imidazoquinazolines via [5 + 1] Annulation. J Org Chem 2022; 87:14753-14762. [PMID: 36254464 DOI: 10.1021/acs.joc.2c02079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The synthesis of N-heterocycles composes a significant part of synthetic chemistry. In this report, a Cu(II)-catalyzed green and efficient synthesis of pyrrolo[1,2-a]quinoxaline, quinazolin-4-one, and benzo[4,5]imidazoquinazoline derivatives was developed, employing N,N-dimethylethanolamine (DMEA) as a C1 synthon. Green oxidant O2 is critical in these transformations, facilitating the formation of a key intermediate─a reactive iminium ion. The method conducted under mild conditions is compatible with a diversity of functional groups, providing an appealing alternative to the previously developed protocols.
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Affiliation(s)
- Meiqi Geng
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, 318000 Zhejiang, Taizhou, China.,Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, 310018 Zhejiang, Hangzhou, China
| | - Minzhao Huang
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, 318000 Zhejiang, Taizhou, China
| | - Jinqiang Kuang
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, 318000 Zhejiang, Taizhou, China
| | - Weiwei Fang
- International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, China
| | - MaoZhong Miao
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, 310018 Zhejiang, Hangzhou, China
| | - Yongmin Ma
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, 318000 Zhejiang, Taizhou, China
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7
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Jiang R, Mu Y, Zhang W, Hong Y, Iqbal Z, Hou J, Yang Z, Tang D. Acid-promoted synthesis of pyrazolo[4,3-c]quinoline derivatives by employing pyrazole-arylamines and β-keto esters via cleavage of C–C bonds. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2114372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Rui Jiang
- Institute of Agricultural Resources and Environment, Ningxia Academy of Agriculture and Forestry Science, Yinchuan, P. R. China
| | - Yangxiu Mu
- Institute of Agricultural Resources and Environment, Ningxia Academy of Agriculture and Forestry Science, Yinchuan, P. R. China
| | - Wei Zhang
- Ningxia Academy of Agriculture and Forestry Science, Yinchuan, P. R. China
| | - Yu Hong
- Institute of Agricultural Resources and Environment, Ningxia Academy of Agriculture and Forestry Science, Yinchuan, P. R. China
| | - Zafar Iqbal
- Institute of Agricultural Resources and Environment, Ningxia Academy of Agriculture and Forestry Science, Yinchuan, P. R. China
| | - Jing Hou
- Institute of Agricultural Resources and Environment, Ningxia Academy of Agriculture and Forestry Science, Yinchuan, P. R. China
| | - Zhixiang Yang
- Institute of Agricultural Resources and Environment, Ningxia Academy of Agriculture and Forestry Science, Yinchuan, P. R. China
| | - Dong Tang
- Institute of Agricultural Resources and Environment, Ningxia Academy of Agriculture and Forestry Science, Yinchuan, P. R. China
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8
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Samanta SK, Sarkar R, Sengupta U, Das S, Ganguly D, Hasija A, Chopra D, Bera MK. A direct entry to polycyclic quinoxaline derivatives via I 2-DMSO mediated oxidative decarboxylation of α-amino acids and the subsequent Pictet-Spengler cyclization reaction. Org Biomol Chem 2022; 20:4650-4658. [PMID: 35612282 DOI: 10.1039/d2ob00503d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A facile and highly efficient iodine-promoted strategy has been delineated for the synthesis of indolo and pyrrolo[1,2-a]quinoxaline derivatives via an oxidative Pictet-Spengler type amino cyclo-annulation reaction using ∝-amino acids as aldehyde surrogates. The concomitant benzylic oxidation and the compatibility of different starting materials under standard conditions made the current method versatile. The salient features of the protocol such as readily available starting materials, inexpensive promoters, environmental benignity, broad substrate scope, scalability, and good to excellent yield make the method more attractive to practitioners of organic synthesis.
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Affiliation(s)
- Surya Kanta Samanta
- Department of Chemistry, Indian Institute of Engineering Science and Technology (IIEST), Shibpur, Howrah 711 103, WB, India.
| | - Rumpa Sarkar
- Department of Chemistry, Indian Institute of Engineering Science and Technology (IIEST), Shibpur, Howrah 711 103, WB, India.
| | - Utsav Sengupta
- Department of Chemistry, Indian Institute of Engineering Science and Technology (IIEST), Shibpur, Howrah 711 103, WB, India.
| | - Sayan Das
- Centre for Health Science and Technology, JIS Institute of Advanced Studies and Research, JIS University, Kolkata, India
| | - Debabani Ganguly
- Centre for Health Science and Technology, JIS Institute of Advanced Studies and Research, JIS University, Kolkata, India
| | - Avantika Hasija
- Crystallography and Crystal Chemistry Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India
| | - Deepak Chopra
- Crystallography and Crystal Chemistry Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India
| | - Mrinal K Bera
- Department of Chemistry, Indian Institute of Engineering Science and Technology (IIEST), Shibpur, Howrah 711 103, WB, India.
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9
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An overview of quinoxaline synthesis by green methods: recent reports. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Quinoxalines and their derivatives belong to an important class of bicyclic aromatic heterocyclic system, also known as benzopyrazines, containing a benzene ring and a pyrazine ring. They have attracted considerable attention over the years due to their potential biological and pharmaceutical properties. A wide range of synthetic strategies is reported in this significant area of research. The present review showcases recent research advances in the synthesis of quinoxaline derivatives following environmentally benign approaches.
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10
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Chemboli R, Prasad K, Rao PR, Kumar ADN, Tej MB, Kapavarapu R, Rao MVB, Pal M. Sonochemical synthesis of indolo[1,2-a]quinoxaline derivatives in the presence of Amberlyst-15: Their evaluation as potential cytotoxic agents. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Borah B, Chowhan LR. Recent advances in the transition-metal-free synthesis of quinoxalines. RSC Adv 2021; 11:37325-37353. [PMID: 35496411 PMCID: PMC9043781 DOI: 10.1039/d1ra06942j] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 10/30/2021] [Indexed: 01/04/2023] Open
Abstract
Quinoxalines, also known as benzo[a]pyrazines, constitute an important class of nitrogen-containing heterocyclic compounds as a result of their widespread prevalence in natural products, biologically active synthetic drug candidates, and optoelectronic materials. Owing to their importance and chemists' ever-increasing imagination of new transformations of these products, tremendous efforts have been dedicated to finding more efficient approaches toward the synthesis of quinoxaline rings. The last decades have witnessed a marvellous outburst in modifying organic synthetic methods to create them sustainable for the betterment of our environment. The exploitation of transition-metal-free catalysis in organic synthesis leads to a new frontier to access biologically active heterocycles and provides an alternative method from the perspective of green and sustainable chemistry. Despite notable developments achieved in transition-metal catalyzed synthesis, the high cost involved in the preparation of the catalyst, toxicity, and difficulty in removing it from the final products constitute disadvantageous effects on the atom economy and eco-friendly nature of the transformation. In this review article, we have summarized the recent progress achieved in the synthesis of quinoxalines under transition-metal-free conditions and cover the reports from 2015 to date. This aspect is presented alongside the mechanistic rationalization and limitations of the reaction methodologies. The scopes of future developments are also highlighted.
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Affiliation(s)
- Biplob Borah
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Gandhinagar-382030 India
| | - L Raju Chowhan
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Gandhinagar-382030 India
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12
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Ahn J, Lee SB, Song I, Chun S, Oh DC, Hong S. Synthesis of 4-Aryl Pyrrolo[1,2-α]quinoxalines via Iron-Catalyzed Oxidative Coupling from an Unactivated Methyl Arene. J Org Chem 2021; 86:7390-7402. [PMID: 34028267 DOI: 10.1021/acs.joc.1c00371] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Herein, we describe the direct synthesis of pyrrolo[1,2-α]quinoxaline via oxidative coupling between methyl arene and 1-(2-aminophenyl) pyrroles. Oxidation of the benzylic carbon of the methyl arene was achieved by di-t-butyl peroxide in the presence of an iron catalyst, followed by conversion to an activated aldehyde in situ. Oxygen played a crucial role in the oxidation process to accelerate benzaldehyde formation. Subsequent Pictet-Spengler-type annulation completed the quinoxaline structure. The protocol tolerated various kinds of functional groups and provided 22 4-aryl pyrrolo[1,2-α]quinoxalines when various methyl arene derivatives were used. The developed method proceeded in air, and all catalysts, reagents, and solvents were easily accessible.
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Affiliation(s)
- Jiwon Ahn
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Seok Beom Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Injae Song
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Simin Chun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Suckchang Hong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
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13
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Mandal S, Pramanik A. Three-Component Synthesis of Pyrrolo/indolo[1,2-a]quinoxalines Substituted with o-Biphenylester/N-arylcarbamate/N-arylurea: A Domino Approach Involving Spirocyclic Ring Opening. J Org Chem 2021; 86:5047-5064. [DOI: 10.1021/acs.joc.0c02973] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Subhro Mandal
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Animesh Pramanik
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
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14
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15
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Liu S, Zhang P, Zhang Y, Zhou X, Liang J, Nan J, Ma Y. Bifunctional acidic ionic liquid-catalyzed decarboxylative cascade synthesis of quinoxalines in water under ambient conditions. Org Chem Front 2021. [DOI: 10.1039/d1qo01068a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An acid-functionalized ionic liquid (IL)-catalyzed cascade decarboxylative cyclization of 2-arylanilines with α-oxocarboxylic acids was developed.
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Affiliation(s)
- Shanshan Liu
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Pingjun Zhang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Yuanyuan Zhang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Xianying Zhou
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Jiahui Liang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Jiang Nan
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Yangmin Ma
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
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16
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Nan J, Chen P, Zhang Y, Yin Y, Wang B, Ma Y. Metal-Free Synthesis of 2-Substituted Quinolines via High Chemoselective Domino Condensation/Aza-Prins Cyclization/Retro-Aldol between 2-Alkenylanilines with β-Ketoesters. J Org Chem 2020; 85:14042-14054. [DOI: 10.1021/acs.joc.0c02063] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jiang Nan
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Pu Chen
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yuxin Zhang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yun Yin
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Bo Wang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yangmin Ma
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
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17
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Keivanloo A, Lashkari S, Bakherad M, Fakharian M, Abbaspour S. One-pot sequential coupling reactions as a new practical protocol for the synthesis of unsymmetrical 2,3-diethynyl quinoxalines and 4-ethynyl-substituted pyrrolo[1,2-a]quinoxalines. Mol Divers 2020; 25:981-993. [PMID: 32301033 DOI: 10.1007/s11030-020-10083-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/01/2020] [Indexed: 01/07/2023]
Abstract
One palladium-catalyzed sequential coupling reactions were successfully used as a new protocol for the synthesis of unsymmetrical 2,3-diethynyl quinoxalines and 4-ethynyl-substituted pyrrolo[1,2-a]quinoxalines. The one-pot two coupling reactions of 2,3-dichloroquinoxaline, with two different terminal alkynes, under controlled conditions produced selectively unsymmetrical 2,3-diethynyl quinoxalines with high yields. When one of the two terminal alkynes was 3-propyne-1-ol, in the presence of secondary amines, cyclization occurred and 4-ethynyl-substituted pyrrolo[1,2-a]quinoxalines were successfully formed. All synthesized compounds were tested against the two bacterial strains including Micrococcus luteus and Pseudomonas aeruginosa.
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Affiliation(s)
- Ali Keivanloo
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, 36199-95161, Iran.
| | - Saeed Lashkari
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, 36199-95161, Iran
| | - Mohammad Bakherad
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, 36199-95161, Iran
| | - Mahsa Fakharian
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, 36199-95161, Iran
| | - Sima Abbaspour
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, 36199-95161, Iran
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18
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Trujillo SA, Peña-Solórzano D, Bejarano OR, Ochoa-Puentes C. Tin(ii) chloride dihydrate/choline chloride deep eutectic solvent: redox properties in the fast synthesis of N-arylacetamides and indolo(pyrrolo)[1,2-a]quinoxalines. RSC Adv 2020; 10:40552-40561. [PMID: 35520840 PMCID: PMC9057578 DOI: 10.1039/d0ra06871c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 10/16/2020] [Indexed: 01/07/2023] Open
Abstract
In this contribution a physicochemical, IR and Raman characterization for the tin(ii) chloride dihydrate/choline chloride eutectic mixture is reported. The redox properties of this solvent were also studied by cyclic voltammetry finding that it can be successfully used as an electrochemical solvent for electrosynthesis and electroanalytical processes and does not require negative potentials as verified by the reduction of nitrobenzene. The potential use of this eutectic mixture as a redox solvent was further explored in obtaining aromatic amines and N-arylacetamides starting from a wide variety of nitroaromatic compounds. In addition, a fast synthetic strategy for the construction of a series of indolo(pyrrolo)[1,2-a]quinoxalines was developed by reacting 1-(2-nitrophenyl)-1H-indole(pyrrole) with aldehydes. This simple protocol offers a straightforward method for the construction of the target quinoxalines in short reaction times and high yields where the key step involves a tandem one-pot reductive cyclization-oxidation. Physicochemical and redox properties of SnCl2·2H2O/ChCl deep eutectic solvent were studied and applied in the synthesis of anilines, N-arylacetamides and indolo(pyrrolo)[1,2-a]quinoxalines starting from nitroaromatic compounds.![]()
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Affiliation(s)
- Sergio Alfonso Trujillo
- Laboratorio de Síntesis Orgánica Sostenible
- Departamento de Química
- Universidad Nacional de Colombia–Sede Bogotá
- Bogotá
- Colombia
| | - Diana Peña-Solórzano
- Laboratorio de Síntesis Orgánica Sostenible
- Departamento de Química
- Universidad Nacional de Colombia–Sede Bogotá
- Bogotá
- Colombia
| | - Oscar Rodríguez Bejarano
- Laboratorio de Electroquímica y Termodinámica Computacional
- Departamento de Química
- Universidad Nacional de Colombia–Sede Bogotá
- Bogotá
- Colombia
| | - Cristian Ochoa-Puentes
- Laboratorio de Síntesis Orgánica Sostenible
- Departamento de Química
- Universidad Nacional de Colombia–Sede Bogotá
- Bogotá
- Colombia
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19
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A highly divergent Pictet-Spengler approach for pyrrolo[1,2-a]quinoxalines from aryl amine using 1,2-dinitrobenzene as an oxidant. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151250] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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20
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Ni J, Jiang Y, Qi Z, Yan R. TFAA-Catalyzed Annulation Synthesis of Spiro Pyrrolo[1,2-a]quinoxaline Derivatives from 1-(2-Aminophenyl)pyrroles and Benzoquinones/Ketones. Chem Asian J 2019; 14:2898-2902. [PMID: 31283108 DOI: 10.1002/asia.201900567] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/07/2019] [Indexed: 12/31/2022]
Abstract
A metal-free trifluorosulfonate anhydride (TFAA)-catalyzed strategy for the synthesis of spiro pyrrolo[1,2-a]quinoxalines from 1-(2-aminophenyl)pyrroles and benzoquinones/ketones has been developed. With this general method, spiro pyrrolo[1,2-a]quinoxalines have been accessed via nucleophilic addition and cyclization. This reaction exhibits good functional group tolerance, and a wide range of products are obtained in moderate to good yields.
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Affiliation(s)
- Jixiang Ni
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Yong Jiang
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, China
| | - Zhenjie Qi
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
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21
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Lian G, Li J, Liu P, Sun P. Photoredox-Catalyzed Radical Cascade Reaction To Synthesize Fluorinated Pyrrolo[1,2-d]benzodiazepine Derivatives. J Org Chem 2019; 84:9322-9329. [DOI: 10.1021/acs.joc.9b00937] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Guifang Lian
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Jingyu Li
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Ping Liu
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Peipei Sun
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
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22
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Zeng X, Liu C, Yang W, Weng Y, Wang X, Hu Y. Metal-Free Method for Direct Synthesis of Functionalized β-Ketoenamines. J Org Chem 2019; 84:3656-3661. [PMID: 30777428 DOI: 10.1021/acs.joc.8b03247] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A new method for direct synthesis of β-ketoenamines was developed by a BF3·OEt2-catalyzed cyclization of 1-iodoalkyne and α-keto acid followed by an amine-mediated ring-opening in one pot. Its metal-free conditions allowed the easy synthesis of those products bearing the transition metal-sensitive functional groups. Its three-component process achieved wide range of functionalized products.
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Affiliation(s)
- Xiaobao Zeng
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
| | - Chulong Liu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
| | - Weiguang Yang
- 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
| | - 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
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23
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Jiang G, Wang S, Zhang J, Yu J, Zhang Z, Ji F. Palladium‐Catalyzed Primary Amine‐Directed Decarboxylative Annulation of
α
‐Oxocarboxylic Acids: Access to Indolo[1,2‐
a
]quinazolines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900001] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Guangbin Jiang
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Function Materia, College of Chemistry and BioengineeringGuilin University of Technology Guilin 541004 People's Republic of China
| | - Shoucai Wang
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Function Materia, College of Chemistry and BioengineeringGuilin University of Technology Guilin 541004 People's Republic of China
| | - Jun Zhang
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Function Materia, College of Chemistry and BioengineeringGuilin University of Technology Guilin 541004 People's Republic of China
| | - Jianwen Yu
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Function Materia, College of Chemistry and BioengineeringGuilin University of Technology Guilin 541004 People's Republic of China
| | - Ziang Zhang
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Function Materia, College of Chemistry and BioengineeringGuilin University of Technology Guilin 541004 People's Republic of China
| | - Fanghua Ji
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Function Materia, College of Chemistry and BioengineeringGuilin University of Technology Guilin 541004 People's Republic of China
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24
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Zhang J, Song C, Sheng L, Liu P, Sun P. Annulation of 1-(2-Aminoaryl)pyrroles, Ethers with Elemental Sulfur To Give 1,3,6-Benzothiadiazepine Derivatives through Double C–S Bond Formation and C–O Cleavage of Ethers. J Org Chem 2019; 84:2191-2199. [DOI: 10.1021/acs.joc.8b03187] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jie Zhang
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Chuwen Song
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Linfeng Sheng
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Ping Liu
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Peipei Sun
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
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25
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Krishna T, Reddy TN, Laxminarayana E, Kalita D. Copper-Catalyzed One-Pot Synthesis of Pyrrolo[1,2-a
]quinoxaline Derivatives from 1-(2-Aminophenyl)-pyrroles and Aldehydes. ChemistrySelect 2019. [DOI: 10.1002/slct.201803538] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Thalishetti Krishna
- Technology Development Centre; Custom Pharmaceutical Services, Dr. Reddy's Laboratories Ltd; Hyderabad 500049 India
- Department of Chemistry; Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad -; 500 085 Telangana India
| | - Thatikonda Narendar Reddy
- Crop Protection Chemicals Division; CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Telangana; Hyderabad-500007 India
| | - Eppakayala Laxminarayana
- Department of Chemistry, Sreenidhi Institute of Science and Technology (Autonomous), Ghatkesar; Hyderabad- 501301, Telangana India
| | - Dipak Kalita
- Technology Development Centre; Custom Pharmaceutical Services, Dr. Reddy's Laboratories Ltd; Hyderabad 500049 India
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26
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Domino Oxidative Cyclization for the One-Pot Synthesis of Pyrrolo[1, 2-a]quinoxaline Derivatives. ChemistrySelect 2018. [DOI: 10.1002/slct.201800960] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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27
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An Z, Zhao L, Wu M, Ni J, Qi Z, Yu G, Yan R. FeCl 3-Catalyzed synthesis of pyrrolo[1,2-a]quinoxaline derivatives from 1-(2-aminophenyl)pyrroles through annulation and cleavage of cyclic ethers. Chem Commun (Camb) 2018; 53:11572-11575. [PMID: 28990598 DOI: 10.1039/c7cc07089f] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A straightforward Fe-catalyzed method for the synthesis of pyrrolo[1,2-a]quinoxalines from 1-(2-aminophenyl)pyrroles and cyclic ethers, which includes functionalization of C(sp3)-H bonds and the construction of C-C and C-N bonds, has been developed. The features of this reaction are Fe catalysis, low-cost and readily accessible starting materials. Moreover, this procedure exhibits good functional group tolerance and a series of pyrrolo[1,2-a]quinoxaline derivatives are obtained in moderate to good yields.
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Affiliation(s)
- Zhenyu An
- State Key Laboratory of Applied Organic Chemistry, Key laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou, Gansu, China.
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28
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An Z, Jiang Y, Guan X, Yan R. Copper-catalyzed tandem aerobic oxidative cyclization for the synthesis of 4-cyanoalkylpyrrolo[1,2-a]quinoxalines from 1-(2-aminophenyl)pyrroles and cyclobutanone oxime esters. Chem Commun (Camb) 2018; 54:10738-10741. [DOI: 10.1039/c8cc06256k] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A copper-catalyzed tandem ring-opening/cyclization reaction for the synthesis of 4-cyanoalkylpyrrolo[1,2-a]quinoxalines from 1-(2-aminophenyl)pyrroles and cyclobutanone oxime esters has been developed.
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Affiliation(s)
- Zhenyu An
- State Key Laboratory of Applied Organic Chemistry
- Key laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Yong Jiang
- School of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing
- China
| | - Xin Guan
- State Key Laboratory of Applied Organic Chemistry
- Key laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry
- Key laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
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29
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Rubio-Presa R, Pedrosa MR, Fernández-Rodríguez MA, Arnáiz FJ, Sanz R. Molybdenum-Catalyzed Synthesis of Nitrogenated Polyheterocycles from Nitroarenes and Glycols with Reuse of Waste Reduction Byproduct. Org Lett 2017; 19:5470-5473. [DOI: 10.1021/acs.orglett.7b02792] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Rubén Rubio-Presa
- Departamento de Química,
Facultad de Ciencias, Universidad de Burgos, Pza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Marı́a R. Pedrosa
- Departamento de Química,
Facultad de Ciencias, Universidad de Burgos, Pza Misael Bañuelos s/n, 09001 Burgos, Spain
| | | | - Francisco J. Arnáiz
- Departamento de Química,
Facultad de Ciencias, Universidad de Burgos, Pza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Roberto Sanz
- Departamento de Química,
Facultad de Ciencias, Universidad de Burgos, Pza Misael Bañuelos s/n, 09001 Burgos, Spain
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30
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Lade JJ, Patil BN, Vhatkar MV, Vadagaonkar KS, Chaskar AC. An Efficient Synthesis of Pyrrolo[1,2-a
]quinoxalines by Copper-Catalyzed C−H Activation of Arylacetic Acids. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700239] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jatin J. Lade
- National Centre for Nanosciences and Nanotechnology; University of Mumbai, Vidyanagari, Kalina Campus, Santacruz (East); Mumbai- 400098 India
| | - Bhausaheb N. Patil
- National Centre for Nanosciences and Nanotechnology; University of Mumbai, Vidyanagari, Kalina Campus, Santacruz (East); Mumbai- 400098 India
| | - Mahendra V. Vhatkar
- National Centre for Nanosciences and Nanotechnology; University of Mumbai, Vidyanagari, Kalina Campus, Santacruz (East); Mumbai- 400098 India
| | - Kamlesh S. Vadagaonkar
- Department of Dyestuff Technology; Institute of Chemical Technology, Nathalal Parekh Marg, Matunga (East); Mumbai- 400019 India
| | - Atul C. Chaskar
- National Centre for Nanosciences and Nanotechnology; University of Mumbai, Vidyanagari, Kalina Campus, Santacruz (East); Mumbai- 400098 India
- Department of Dyestuff Technology; Institute of Chemical Technology, Nathalal Parekh Marg, Matunga (East); Mumbai- 400019 India
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31
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Lade JJ, Patil BN, Sathe PA, Vadagaonkar KS, Chetti P, Chaskar AC. Iron Catalyzed Cascade Protocol for the Synthesis of Pyrrolo[1, 2-a
]quinoxalines: A Powerful Tool to Access Solid State Emissive Organic Luminophores. ChemistrySelect 2017. [DOI: 10.1002/slct.201701383] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jatin J. Lade
- National Centre for Nanosciences and Nanotechnology; University of Mumbai-; 400 098 India
| | - Bhausaheb N. Patil
- National Centre for Nanosciences and Nanotechnology; University of Mumbai-; 400 098 India
| | - Pratima A. Sathe
- National Centre for Nanosciences and Nanotechnology; University of Mumbai-; 400 098 India
| | - Kamlesh S. Vadagaonkar
- Department of Dyestuff Technology; Institute of Chemical Technology; Mumbai- 400019 India
| | - Prabhakar Chetti
- Department of Chemistry; National Institute of Technology; Kurukshetra 136119, Haryana India
| | - Atul C. Chaskar
- National Centre for Nanosciences and Nanotechnology; University of Mumbai-; 400 098 India
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32
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Xie C, Zhang Z, Li D, Gong J, Han X, Liu X, Ma C. Dimethyl Sulfoxide Involved One-Pot Synthesis of Quinoxaline Derivatives. J Org Chem 2017; 82:3491-3499. [DOI: 10.1021/acs.joc.6b02977] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Caixia Xie
- Key
Laboratory of Special Functional Aggregated Materials, Ministry of
Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Zeyuan Zhang
- Key
Laboratory of Special Functional Aggregated Materials, Ministry of
Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Danyang Li
- Key
Laboratory of Special Functional Aggregated Materials, Ministry of
Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Jian Gong
- Key
Laboratory of Special Functional Aggregated Materials, Ministry of
Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Xushuang Han
- Key
Laboratory of Special Functional Aggregated Materials, Ministry of
Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Xuan Liu
- Key
Laboratory of Special Functional Aggregated Materials, Ministry of
Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Chen Ma
- Key
Laboratory of Special Functional Aggregated Materials, Ministry of
Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines,
Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China
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33
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Li J, Zhang J, Yang H, Gao Z, Jiang G. A Green Aerobic Oxidative Synthesis of Pyrrolo[1,2-a]quinoxalines from Simple Alcohols without Metals and Additives. J Org Chem 2016; 82:765-769. [DOI: 10.1021/acs.joc.6b02501] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jixing Li
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jinlong Zhang
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Huameng Yang
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Zeng Gao
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Gaoxi Jiang
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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