1
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Das A, Maji B. Direct C(3)5-H Polyfluoroarylation of 2-Amino/alkoxy Pyridines Enabled by a Transient and Electron-deficient Palladium Intermediate. Chemistry 2023; 29:e202301436. [PMID: 37154162 DOI: 10.1002/chem.202301436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 05/10/2023]
Abstract
Herein, we present an unprecedented azine-limited C5-H polyfluoroarylation of 2-aminopyridines enabled by a transient and electron-deficient perfluoroaryl-Pd species via C-H/C-H coupling. The protocol further allows C3(5)-H polyfluoroarylation of 2-alkoxypyridines guided by sterics and electronics for the first time. The late-stage C-H functionalization of drugs, drug derivatives, and natural product derivatives and synthesis of C5-aryl drug derivatives further demonstrated the method's utility. The preliminary mechanistic studies reveal that the synergistic combination of the bulky yet electrophilic perfluoroaryl-Pd species and the partial nucleophilicity of the C5-position of 2-amino/alkoxy-pyridines is the origin of reactivity and selectivity. Importantly, the first experimental evidence for the role of diisopropyl sulfide is provided.
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Affiliation(s)
- Animesh Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Biplab Maji
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
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2
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Parshuram Satpute D, Shirwadkar U, Kumar Tharalla A, Dattatray Shinde S, Nikhil Vaidya G, Joshi S, Patel Vatsa P, Jain A, Singh AA, Garg R, Mandoli A, Kumar D. Discovery of fluorinated 2‑Styryl 4(3H)-quinazolinone as potential therapeutic hit for oral cancer. Bioorg Med Chem 2023; 81:117193. [PMID: 36796126 DOI: 10.1016/j.bmc.2023.117193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/20/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
Oral squamous cell carcinoma (OSCC) is the most common malignant epithelial neoplasm, affects the mouth and throat, and accounts for 90 % of oral cancers. Considering the associated morbidity with neck dissections and the limitation of existing therapeutic agents, the discovery and development of new anticancer drugs/drug candidates for oral cancer treatment are of the utmost need. In this context, reported here is the identification of fluorinated 2‑styryl 4(3H)-quinazolinone as a promising hit for oral cancer. Preliminary studies indicate that the compound blocks the transition of G1 to S phase, thereby leading to arrest in the G1/S phase. Subsequent RNA-seq analysis revealed that the compound induces the activation of molecular pathways involved in apoptosis (such as TNF signalling through NF-κB, p53 pathways) and cell differentiation and suppresses the pathways of cellular growth and development (such as KRAS signaling) in CAL-27 cancer cells. It is noted that identified hit complies with a favorable range of ADME properties as per the computational analysis.
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Affiliation(s)
- Dinesh Parshuram Satpute
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmadabad, Palaj, Gandhinagar-382355, Gujarat, India
| | - Urjita Shirwadkar
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmadabad, Palaj, Gandhinagar-382355, Gujarat, India
| | - Anil Kumar Tharalla
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmadabad, Palaj, Gandhinagar-382355, Gujarat, India
| | - Sangita Dattatray Shinde
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmadabad, Palaj, Gandhinagar-382355, Gujarat, India
| | - Gargi Nikhil Vaidya
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmadabad, Palaj, Gandhinagar-382355, Gujarat, India
| | - Swarali Joshi
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmadabad, Palaj, Gandhinagar-382355, Gujarat, India
| | - Priyanka Patel Vatsa
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmadabad, Palaj, Gandhinagar-382355, Gujarat, India
| | - Alok Jain
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmadabad, Palaj, Gandhinagar-382355, Gujarat, India; Department of Bio-engineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi, India
| | - Abhishek A Singh
- Department of Molecular Biology, Radboud University, Nijmegen, Netherlands
| | - Rachana Garg
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmadabad, Palaj, Gandhinagar-382355, Gujarat, India; Division of Neurosurgery, Department of Surgery, City of Hope National Medical Center, Duarte, CA 91010, USA.
| | - Amit Mandoli
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmadabad, Palaj, Gandhinagar-382355, Gujarat, India.
| | - Dinesh Kumar
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmadabad, Palaj, Gandhinagar-382355, Gujarat, India.
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3
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Lu MZ, Goh J, Maraswami M, Jia Z, Tian JS, Loh TP. Recent Advances in Alkenyl sp 2 C-H and C-F Bond Functionalizations: Scope, Mechanism, and Applications. Chem Rev 2022; 122:17479-17646. [PMID: 36240299 DOI: 10.1021/acs.chemrev.2c00032] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Alkenes and their derivatives are featured widely in a variety of natural products, pharmaceuticals, and advanced materials. Significant efforts have been made toward the development of new and practical methods to access this important class of compounds by selectively activating the alkenyl C(sp2)-H bonds in recent years. In this comprehensive review, we describe the state-of-the-art strategies for the direct functionalization of alkenyl sp2 C-H and C-F bonds until June 2022. Moreover, metal-free, photoredox, and electrochemical strategies are also covered. For clarity, this review has been divided into two parts; the first part focuses on currently available alkenyl sp2 C-H functionalization methods using different alkene derivatives as the starting materials, and the second part describes the alkenyl sp2 C-F bond functionalization using easily accessible gem-difluoroalkenes as the starting material. This review includes the scope, limitations, mechanistic studies, stereoselective control (using directing groups as well as metal-migration strategies), and their applications to complex molecule synthesis where appropriate. Overall, this comprehensive review aims to document the considerable advancements, current status, and emerging work by critically summarizing the contributions of researchers working in this fascinating area and is expected to stimulate novel, innovative, and broadly applicable strategies for alkenyl sp2 C-H and C-F bond functionalizations in the coming years.
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Affiliation(s)
- Ming-Zhu Lu
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou 450001, China.,School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore
| | - Jeffrey Goh
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore
| | - Manikantha Maraswami
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore
| | - Zhenhua Jia
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jie-Sheng Tian
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Teck-Peng Loh
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou 450001, China.,School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore.,Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
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4
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Kumaran S, Parthasarathy K. Rhodium-Catalyzed Annulations and Heck Coupling/Aza-Michael Addition for the Synthesis of Benzothiadiazinoisoquinoline 6,6-Dioxides and Benzothiadiazinoisoindole 5,5-Dioxides, Respectively. J Org Chem 2022; 87:11989-12000. [PMID: 36049131 DOI: 10.1021/acs.joc.2c00964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new and efficient protocol has been demonstrated for the synthesis of benzothiadiazinoisoquinoline 6,6-dioxides and benzothiadiazinoisoindole 5,5-dioxides in good to excellent yields. These compounds are formed through a sequential Rh(III)-catalyzed C-H cyclization of dihydrophenylbenzothiadiazine 1,1-dioxides with alkynes and oxidative Heck coupling/aza-Michael addition of dihydrophenylbenzothiadiazine 1,1-dioxides with acrylates, respectively.
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Affiliation(s)
- Subramani Kumaran
- Department of Organic Chemistry, University of Madras, Guindy Campus, Tamilnadu, Chennai 600025, India
| | - Kanniyappan Parthasarathy
- Department of Organic Chemistry, University of Madras, Guindy Campus, Tamilnadu, Chennai 600025, India
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5
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Chang W, Li Z, Yuan C, Liu X, Feng J, Pang S, Duan L, Zhang Z. Synthesis of Highly Substituted 2‐Aminopyridines with Vinyl Azides, Isonitriles and Ketones. Chem Asian J 2022; 17:e202200083. [DOI: 10.1002/asia.202200083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/23/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Wenxu Chang
- China Agricultural University College of Agronomy and Biotechnology, and College of Science CHINA
| | - Zongyang Li
- China Agricultural University College of Agronomy and Biotechnology, and College of Science CHINA
| | - Chenhui Yuan
- China Agricultural University College of Agronomy and Biotechnology, and College of Science CHINA
| | - Xinying Liu
- China Agricultural University College of Agronomy and Biotechnology, and College of Science CHINA
| | - Jiyao Feng
- China Agricultural University College of Agronomy and Biotechnology, and College of Science CHINA
| | - Sen Pang
- China Agricultural University College of Agronomy and Biotechnology, and College of Science CHINA
| | - Liusheng Duan
- China Agricultural University College of Agronomy and Biotechnology, and College of Science CHINA
| | - Zhenhua Zhang
- China Agricultural University Department of Applied Chemistry 2, Yuanmingyuanxi Road 100193 Beijing CHINA
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6
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Synthesis and Fluorescent Properties of Aminopyridines and the Application in "Click and Probing". Molecules 2022; 27:molecules27051596. [PMID: 35268697 PMCID: PMC8912075 DOI: 10.3390/molecules27051596] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/24/2022] [Accepted: 02/24/2022] [Indexed: 11/17/2022] Open
Abstract
Unsubstituted pyridin-2-amine has a high quantum yield and is a potential scaffold for a fluorescent probe. However, the facile access to conjugated highly substituted aminopyridines and the study of their fluorescent properties is scarce. In this paper, synthesis and fluorescent properties of multisubstituted aminopyridines were studied based on a recently developed Rh-catalyzed coupling of vinyl azide with isonitrile to form a vinyl carbodiimide intermediate, following tandem cyclization with an alkyne. An aminopyridine substituted with an azide group as a potential probe was further designed, synthesized, and evaluated. The “clicking-and-probing” experiment of it on BSA protein showed the potential of aminopyridine as a scaffold of a biological probe.
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7
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Umadevi N, Kumar G, Reddy NG, Reddy BS. Recent Advances in C–H Activation and Functionalization of Quinazolinones/ Quinazolines. CURR ORG CHEM 2021. [DOI: 10.2174/1385272824999201210180732] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This review summarizes the transition metal-catalyzed direct C–H functionalization
of quinazolinones and quinazolines through C-C, C-N and C-O bond formations. It focuses
mainly on the C-H (sp<sup>2</sup> or sp<sup>3</sup>) bond arylation, amination, sulfamidation, acetoxylation,
halogenation, annulation of quinazolinones and quinazolines. This review illustrates the scope
of C-H activation and functionalization of various quinazolinone and quinazoline derivatives.
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Affiliation(s)
- N. Umadevi
- Indian Institute of Chemical Technology, Hyderabad, India
| | - G. Kumar
- Department of Chemistry, Yogi Vemana University, Kadapa, Andhra Pradesh, India
| | - N.C. Gangi Reddy
- Department of Chemistry, Yogi Vemana University, Kadapa, Andhra Pradesh, India
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8
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Moshkina TN, Nosova EV, Lipunova GN, Zhilina EF, Slepukhin PA, Nikonov IL, Charushin VN. The Rh( iii)-catalysed C–H/N–H annulation of 2-thienyl- and 2-phenyl-quinazolin-4(3 H)-ones with diphenylacetylene. NEW J CHEM 2021. [DOI: 10.1039/d1nj00935d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-Thienyl/phenyl substituted quinazolin-4(3H)-ones were converted into 4,5-diphenyl-7H-thieno[2′,3′:3,4]pyrido[2,1-b]quinazolin-7-ones or amide alcoholysis product via Rh(iii)-catalyzed reaction of with diphenylacetylene.
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Affiliation(s)
- Tatyana N. Moshkina
- Department of Organic and Biomolecular Chemistry
- Ural Federal University
- Yekaterinburg
- Russia
| | - Emiliya V. Nosova
- Department of Organic and Biomolecular Chemistry
- Ural Federal University
- Yekaterinburg
- Russia
- Postovsky Institute of Organic Synthesis
| | - Galina N. Lipunova
- Department of Organic and Biomolecular Chemistry
- Ural Federal University
- Yekaterinburg
- Russia
- Postovsky Institute of Organic Synthesis
| | - Ekaterina F. Zhilina
- Postovsky Institute of Organic Synthesis
- Ural Division of the Russian Academy of Sciences
- Yekaterinburg
- Russia
| | - Pavel A. Slepukhin
- Department of Organic and Biomolecular Chemistry
- Ural Federal University
- Yekaterinburg
- Russia
- Postovsky Institute of Organic Synthesis
| | - Igor L. Nikonov
- Department of Organic and Biomolecular Chemistry
- Ural Federal University
- Yekaterinburg
- Russia
- Postovsky Institute of Organic Synthesis
| | - Valery N. Charushin
- Department of Organic and Biomolecular Chemistry
- Ural Federal University
- Yekaterinburg
- Russia
- Postovsky Institute of Organic Synthesis
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9
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Mondal B, Ghosh P, Kundu M, Das S. 8-Aminoimidazo[1,2-a]pyridine (AIP) directed Pd(ii) catalysis: site-selective ortho-C(sp2)–H arylation in aqueous medium. Org Biomol Chem 2021; 19:1604-1609. [DOI: 10.1039/d0ob02510k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and facile Pd(ii) catalyzed selective ortho and β-C(sp2)–H arylation reaction employing the 8-AIP (aminoimidazo[1,2-a]pyridine) auxiliary as a removable N,N-bidentate directing group in a green solvent (water) has been reported.
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Affiliation(s)
- Biswajit Mondal
- TCG Life sciences Pvt. Ltd
- Kolkata 700091
- India
- Department of Chemistry
- University of North Bengal
| | - Prasanjit Ghosh
- Department of Chemistry
- University of North Bengal
- Darjeeling 734013
- India
| | | | - Sajal Das
- Department of Chemistry
- University of North Bengal
- Darjeeling 734013
- India
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10
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Zhang J, Lu X, Shen C, Xu L, Ding L, Zhong G. Recent advances in chelation-assisted site- and stereoselective alkenyl C–H functionalization. Chem Soc Rev 2021; 50:3263-3314. [DOI: 10.1039/d0cs00447b] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review highlights recent advances in vicinal- and geminal-group-directed alkenyl C–H functionalizations which proceeded by endo- and exo-cyclometallation.
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Affiliation(s)
- Jian Zhang
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 311121
- China
| | - Xiunan Lu
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 311121
- China
| | - Cong Shen
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 311121
- China
| | - Liangyao Xu
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 311121
- China
| | - Liyuan Ding
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 311121
- China
| | - Guofu Zhong
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 311121
- China
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11
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Han Z, Zhang Z, Li W, Du Z, Tao B, Da C, Jiao Z, Chen H, Li Y. Ruthenium‐Catalyzed Double C(sp
2
)−H Functionalizations of Fumaramides with Alkynes for the Divergent Synthesis of Pyridones and Naphthyridinediones. ChemCatChem 2020. [DOI: 10.1002/cctc.201902160] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhi‐Jian Han
- The Key Laboratory of the Digestive System Tumors of Gansu Province Department of Tumor Center Lanzhou University Second Hospital Lanzhou 730030 P.R. China
| | - Ze‐Xuan Zhang
- School of Life Sciences State Key Laboratory of Applied Organic Chemistry and Key Lab of Preclinical Study for New Drugs of Gansu Province Lanzhou University Lanzhou 730000 China
| | - Wei‐Ping Li
- School of Life Sciences State Key Laboratory of Applied Organic Chemistry and Key Lab of Preclinical Study for New Drugs of Gansu Province Lanzhou University Lanzhou 730000 China
- Gansu Chemical Industry Research Institute Co. LTD Lanzhou 730000 P.R. China
| | - Zhi‐Hong Du
- School of Life Sciences State Key Laboratory of Applied Organic Chemistry and Key Lab of Preclinical Study for New Drugs of Gansu Province Lanzhou University Lanzhou 730000 China
| | - Bao‐Xiu Tao
- School of Life Sciences State Key Laboratory of Applied Organic Chemistry and Key Lab of Preclinical Study for New Drugs of Gansu Province Lanzhou University Lanzhou 730000 China
| | - Chao‐Shan Da
- School of Life Sciences State Key Laboratory of Applied Organic Chemistry and Key Lab of Preclinical Study for New Drugs of Gansu Province Lanzhou University Lanzhou 730000 China
| | - Zuo‐Yi Jiao
- The Key Laboratory of the Digestive System Tumors of Gansu Province Department of Tumor Center Lanzhou University Second Hospital Lanzhou 730030 P.R. China
| | - Hao Chen
- The Key Laboratory of the Digestive System Tumors of Gansu Province Department of Tumor Center Lanzhou University Second Hospital Lanzhou 730030 P.R. China
| | - Yumin Li
- The Key Laboratory of the Digestive System Tumors of Gansu Province Department of Tumor Center Lanzhou University Second Hospital Lanzhou 730030 P.R. China
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12
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Kumaran S, Parthasarathy K. Cobalt(III)-Catalyzed Synthesis of Fused Quinazolinones by C-H/N-H Annulation of 2-Arylquinazolinones with Alkynes. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901763] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Subramani Kumaran
- Department of Organic Chemistry; University of Madras; Guindy Campus -600025 Chennai Tamilnadu India
| | - Kanniyappan Parthasarathy
- Department of Organic Chemistry; University of Madras; Guindy Campus -600025 Chennai Tamilnadu India
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13
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Kong L, Yan S, Yao Y, Xiao Q, Lin J. Cascade Reactions Utilizing the Nucleophilic Properties of 1,1‐Enediamines for the Regioselective Synthesis of 4‐Aryl‐2‐aminopyridines. ChemistrySelect 2019. [DOI: 10.1002/slct.201900026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ling‐Bin Kong
- Key Laboratory of Medicinal Chemistry for Natural ResourceMinistry Education, School of Chemical Science and TechnologyYunnan University Kunming 650091, P. R. China
| | - Sheng‐Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural ResourceMinistry Education, School of Chemical Science and TechnologyYunnan University Kunming 650091, P. R. China
| | - Yuan Yao
- Key Laboratory of Medicinal Chemistry for Natural ResourceMinistry Education, School of Chemical Science and TechnologyYunnan University Kunming 650091, P. R. China
| | - Qiang Xiao
- Key Laboratory of Medicinal Chemistry for Natural ResourceMinistry Education, School of Chemical Science and TechnologyYunnan University Kunming 650091, P. R. China
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural ResourceMinistry Education, School of Chemical Science and TechnologyYunnan University Kunming 650091, P. R. China
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14
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Zi QX, Yan SJ, Yang CL, Li K, Lin J. Three-Component Cascade Reaction of 1,1-Enediamines, N, N-Dimethylformamide Dimethyl Acetal, and 1,3-Dicarbonyl Compounds: Selective Synthesis of Diverse 2-Aminopyridine Derivatives. ACS OMEGA 2019; 4:2863-2873. [PMID: 31459516 PMCID: PMC6648487 DOI: 10.1021/acsomega.8b03284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 01/25/2019] [Indexed: 06/10/2023]
Abstract
A novel approach has been developed for the synthesis of three kinds of highly functionalized 2-aminopyridine derivatives (APDs) through a three-component reaction of 1,1-enediamines (EDAMs) 1, N,N-dimethylformamide dimethyl acetal (DMF-DMA) 2, and 1,3-dicarbonyl compounds 3-5 via a base-promoted cascade reaction, producing the desired products in good to excellent yields. This method represents a route to obtain a novel class of APDs in a concise, rapid, and practical manner. This approach is particularly attractive because of the following features: low cost, mild temperature, atom economy, high yields, and potential biological activity of the product.
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Affiliation(s)
| | | | | | | | - Jun Lin
- E-mail: Phone/Fax: +86 87165031633 (J. L.)
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15
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Luo Q, Huang R, Xiao Q, Yao Y, Lin J, Yan SJ. Highly Selective Synthesis of 2-Amino-4,6-diarylpyridine Derivatives by the Cascade Reaction of 1,1-Enediamines with α,β-Unsaturated Ketones. J Org Chem 2019; 84:1999-2011. [DOI: 10.1021/acs.joc.8b03008] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Qin Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P.R. China
| | - Rong Huang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P.R. China
| | - Qiang Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P.R. China
| | - Yuan Yao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P.R. China
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P.R. China
| | - Sheng-Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P.R. China
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16
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Vemula SR, Chhoun MR, Cook GR. Well-Defined Pre-Catalysts in Amide and Ester Bond Activation. Molecules 2019; 24:E215. [PMID: 30634382 PMCID: PMC6359523 DOI: 10.3390/molecules24020215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/02/2019] [Accepted: 01/02/2019] [Indexed: 11/17/2022] Open
Abstract
Over the past few decades, transition metal catalysis has witnessed a rapid and extensive development. The discovery and development of cross-coupling reactions is considered to be one of the most important advancements in the field of organic synthesis. The design and synthesis of well-defined and bench-stable transition metal pre-catalysts provide a significant improvement over the current catalytic systems in cross-coupling reactions, avoiding excess use of expensive ligands and harsh conditions for the synthesis of pharmaceuticals, agrochemicals and materials. Among various well-defined pre-catalysts, the use of Pd(II)-NHC, particularly, provided new avenues to expand the scope of cross-coupling reactions incorporating unreactive electrophiles, such as amides and esters. The strong σ-donation and tunable steric bulk of NHC ligands in Pd-NHC complexes facilitate oxidative addition and reductive elimination steps enabling the cross-coupling of broad range of amides and esters using facile conditions contrary to the arduous conditions employed under traditional catalytic conditions. Owing to the favorable catalytic activity of Pd-NHC catalysts, a tremendous progress was made in their utilization for cross-coupling reactions via selective acyl C⁻X (X=N, O) bond cleavage. This review highlights the recent advances made in the utilization of well-defined pre-catalysts for C⁻C and C⁻N bond forming reactions via selective amide and ester bond cleavage.
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Affiliation(s)
- Sandeep R Vemula
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND 58108⁻6050, USA.
| | - Michael R Chhoun
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND 58108⁻6050, USA.
| | - Gregory R Cook
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND 58108⁻6050, USA.
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17
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Abstract
The bismuth-catalyzed oxidative condensation of aldehydes with 2-aminobenzamide under aerobic conditions is reported using ethanol as the solvent. Good to excellent isolated yields (68-95%) of the corresponding 2-substituted quinazolinones were obtained under mild reaction conditions with excellent functional group tolerance. The quinazolinones were further functionalized to afford N-allylated quinazolinones, 2-aminopyridine derivatives, and annulated polyheterocyclic compounds via transition-metal catalyzed reactions.
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Affiliation(s)
- Sandeep R. Vemula
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND 58108-6050, USA
| | - Dinesh Kumar
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Gandhinagar 382355, Gujarat, India
| | - Gregory R. Cook
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND 58108-6050, USA
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18
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Weng Y, Kuai C, Lv W, Cheng G. Synthesis of 2-Aminopyridines via a Base-Promoted Cascade Reaction of N-Propargylic β-Enaminones with Formamides. J Org Chem 2018; 83:5002-5008. [PMID: 29651837 DOI: 10.1021/acs.joc.8b00128] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
N-Substituted formamides as nucleophiles react with in situ-generated 1,4-oxazepines from N-propargylic β-enaminones followed by spontaneous N-deformylation to deliver densely substituted 2-aminopyridines in good yields (31-88%). The formyl group is found to be a superior traceless activating group of free amines and would ultimately be removed in situ. This reaction proceeds smoothly at room temperature, in the presence of NaOH as sole additive, without protection from the atmosphere and generates H2O and sodium formate as byproducts.
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Affiliation(s)
- Yunxiang Weng
- College of Materials Science & Engineering , Huaqiao University , Xiamen 361021 , China
| | - Changsheng Kuai
- College of Materials Science & Engineering , Huaqiao University , Xiamen 361021 , China
| | - Weiwei Lv
- College of Materials Science & Engineering , Huaqiao University , Xiamen 361021 , China
| | - Guolin Cheng
- College of Materials Science & Engineering , Huaqiao University , Xiamen 361021 , China
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19
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Yang F, Yu J, Liu Y, Zhu J. Rhodium(III)-Catalyzed Oxadiazole-Directed Alkenyl C-H Activation for Synthetic Access to 2-Acylamino and 2-Amino Pyridines. J Org Chem 2017; 82:9978-9987. [PMID: 28861991 DOI: 10.1021/acs.joc.7b01303] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We report herein a Rh(III)-catalyzed alkenyl C-H activation protocol for the coupling of oxadiazoles with alkynes and synthesis of 2-acylamino and 2-amino pyridines, an important heterocyclic scaffold for various naturals products and synthetic pharmaceuticals bearing a readily reacting functional group. The selective protection/deprotection of amino groups through simple solvent switching, good functional group compatibility, superior product yield, and high regioselectivity are some of the notable synthetic features witnessed in this reaction protocol.
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Affiliation(s)
- Fan Yang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University , Nanjing 210093, China
| | - Jiaojiao Yu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University , Nanjing 210093, China
| | - Yun Liu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University , Nanjing 210093, China
| | - Jin Zhu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University , Nanjing 210093, China
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20
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Nareddy P, Jordan F, Szostak M. Recent Developments in Ruthenium-Catalyzed C–H Arylation: Array of Mechanistic Manifolds. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01645] [Citation(s) in RCA: 211] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pradeep Nareddy
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Frank Jordan
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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21
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Wu X, Zhao P, Geng X, Zhang J, Gong X, Wu YD, Wu AX. Direct Oxidative Cleavage of Multiple Csp3–H Bonds and a C–C Bond in 2-(Pyridin-2-yl)acetate Derivatives: Formal [3 + 1 + 1] Synthesis of 3-(Pyridin-2-yl)indolizine Skeletons. Org Lett 2017; 19:3319-3322. [DOI: 10.1021/acs.orglett.7b01492] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xingxing Gong
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - An-xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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22
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Associative Covalent Relay: An Oxadiazolone Strategy for Rhodium(III)-Catalyzed Synthesis of Primary Pyridinylamines. Angew Chem Int Ed Engl 2017; 56:5222-5226. [DOI: 10.1002/anie.201700320] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Indexed: 12/31/2022]
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23
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Yu X, Chen K, Wang Q, Guo S, Zha S, Zhu J. Associative Covalent Relay: An Oxadiazolone Strategy for Rhodium(III)-Catalyzed Synthesis of Primary Pyridinylamines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Xiaolong Yu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing National Laboratory of Microstructures; Collaborative Innovation Center of Chemistry for Life Sciences; Nanjing University; Nanjing 210093 China
| | - Kehao Chen
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing National Laboratory of Microstructures; Collaborative Innovation Center of Chemistry for Life Sciences; Nanjing University; Nanjing 210093 China
| | - Qi Wang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing National Laboratory of Microstructures; Collaborative Innovation Center of Chemistry for Life Sciences; Nanjing University; Nanjing 210093 China
| | - Shan Guo
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing National Laboratory of Microstructures; Collaborative Innovation Center of Chemistry for Life Sciences; Nanjing University; Nanjing 210093 China
| | - Shanke Zha
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing National Laboratory of Microstructures; Collaborative Innovation Center of Chemistry for Life Sciences; Nanjing University; Nanjing 210093 China
| | - Jin Zhu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing National Laboratory of Microstructures; Collaborative Innovation Center of Chemistry for Life Sciences; Nanjing University; Nanjing 210093 China
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24
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Hamasharif M, Smith OEP, Curran CJ, Hemming K. N-Alkylation and Aminohydroxylation of 2-Azidobenzenesulfonamide Gives a Pyrrolobenzothiadiazepine Precursor Whereas Attempted N-Alkylation of 2-Azidobenzamide Gives Benzotriazinones and Quinazolinones. ACS OMEGA 2017; 2:1222-1231. [PMID: 31457499 PMCID: PMC6640974 DOI: 10.1021/acsomega.7b00211] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 03/21/2017] [Indexed: 06/10/2023]
Abstract
N-Alkylation of 2-azidobenzenesulfonamide with 5-bromopent-1-ene gave an N-pentenyl sulfonamide, which underwent intramolecular aminohydroxylation to give an N-(2-azidoaryl)sulfonyl prolinol, a precursor for the synthesis of a pyrrolobenzothiadiazepine. The attempted N-alkylation of 2-azidobenzamide gave a separable mixture (∼1:1) of a benzotriazinone and a quinazolinone in a 72% combined yield. Other primary alkyl halides (3 examples) gave similar mixtures of benzotriazinones and quinazolinones. Benzylic, allylic, and secondary and tertiary alkyl halides (5 examples) gave only benzotriazinones in moderate yields. The results of mechanistic studies show the likely involvement of nitrene intermediates in the quinazolinone pathway and a second pathway involving a dimethylsulfoxide or dimethylsulfide-mediated conversion of 2-azidobenzamide into benzotriazinones.
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25
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Zhang J, Wu X, Gao Q, Geng X, Zhao P, Wu YD, Wu A. Diamination/Oxidative Cross-Coupling/Bicyclization of Anilines and Methyl Ketones: Direct I2-Promoted Synthesis of 1,2-Fused Oxindoles. Org Lett 2017; 19:408-411. [DOI: 10.1021/acs.orglett.6b03636] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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26
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Wang D, Zhang K, Jia L, Zhang D, Zhang Y, Cheng Y, Lin C, Wang B. nBu4NI-Mediated oxidation of methyl ketones to α-ketoamides: using ammonium, primary and secondary amine-salt as an amine moiety. Org Biomol Chem 2017; 15:3427-3434. [PMID: 28291273 DOI: 10.1039/c7ob00270j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Presented is the first example of synthesizing an array of primary-, secondary-, and tertiary-α-ketoamides in moderate to excellent yields with a catalyst nBu4NI from methyl ketones and amine/ammonium salts under mild conditions using oxidant TBHP.
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Affiliation(s)
- Dan Wang
- State Key Lab of Marine Resource Utilisation in South China Sea
- Hainan University
- Haikou 570228
- PR China
| | - Kuan Zhang
- State Key Lab of Marine Resource Utilisation in South China Sea
- Hainan University
- Haikou 570228
- PR China
| | - Luhan Jia
- State Key Lab of Marine Resource Utilisation in South China Sea
- Hainan University
- Haikou 570228
- PR China
| | - Danting Zhang
- State Key Lab of Marine Resource Utilisation in South China Sea
- Hainan University
- Haikou 570228
- PR China
| | - Yue Zhang
- State Key Lab of Marine Resource Utilisation in South China Sea
- Hainan University
- Haikou 570228
- PR China
| | - Yujia Cheng
- State Key Lab of Marine Resource Utilisation in South China Sea
- Hainan University
- Haikou 570228
- PR China
| | - Chang Lin
- State Key Lab of Marine Resource Utilisation in South China Sea
- Hainan University
- Haikou 570228
- PR China
| | - Bo Wang
- State Key Lab of Marine Resource Utilisation in South China Sea
- Hainan University
- Haikou 570228
- PR China
- Institute of Chemical Engineering
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27
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Vemula SR, Kumar D, Cook GR. Palladium-Catalyzed Allylic Amidation with N-Heterocycles via sp3 C–H Oxidation. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01818] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Sandeep R. Vemula
- Department of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
| | - Dinesh Kumar
- Department of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
| | - Gregory R. Cook
- Department of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
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28
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Affiliation(s)
- Dinesh Kumar
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
| | - Sandeep R. Vemula
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
| | - Gregory R. Cook
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
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