1
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Kumar M, Sharma AK, Ishu K, Singh KN. Sulfur-Mediated Decarboxylative Amidation of Cinnamic Acids via C═C Bond Cleavage. J Org Chem 2024; 89:9888-9895. [PMID: 38920263 DOI: 10.1021/acs.joc.4c00669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
A new strategy for the synthesis of amides has been developed using sulfur-mediated decarboxylative coupling of cinnamic acids with amines via oxidative cleavage of the C═C bond.
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Affiliation(s)
- Mahesh Kumar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Anup Kumar Sharma
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Km Ishu
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Krishna Nand Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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2
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Chen PH, Hsu SJ, Chen CC, Fu JC, Hou DR. Synthesis of Diarylamines via Nitrosonium-Initiated C-N Bond Formation. J Org Chem 2024; 89:10316-10326. [PMID: 38950197 DOI: 10.1021/acs.joc.4c01220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
Abstract
Electron-rich diarylamines, exemplified by anisole-derived amines, play pivotal roles in process chemistry, pharmaceuticals, and materials. In this study, homo-diarylamines were synthesized directly from the C-H activation of electron-rich arenes by sodium nitrate/trifluoroacetic acid and the successive treatment of iron powder. Mechanistic investigations reveal that nitrosoarene serves as the reaction intermediate, and the formation of the second C-N bond between the resulting nitrosoarene and electron-rich arene is catalyzed by the nitrosonium ion (NO+). Thus, hetero-diarylamines were synthesized using preformed nitrosoarenes and various electron-rich arenes. This reaction complements a range of cross-coupling reactions catalyzed by transition metal catalysts.
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Affiliation(s)
- Pin-Hsien Chen
- Department of Chemistry, National Central University, 300 Jhong-Da Rd., Jhong-Li, Taoyuan 320317, Taiwan
| | - Shu-Jung Hsu
- Department of Chemistry, National Central University, 300 Jhong-Da Rd., Jhong-Li, Taoyuan 320317, Taiwan
| | - Cheng-Chun Chen
- Department of Chemistry, National Central University, 300 Jhong-Da Rd., Jhong-Li, Taoyuan 320317, Taiwan
| | - Jui-Chen Fu
- Department of Chemistry, National Central University, 300 Jhong-Da Rd., Jhong-Li, Taoyuan 320317, Taiwan
| | - Duen-Ren Hou
- Department of Chemistry, National Central University, 300 Jhong-Da Rd., Jhong-Li, Taoyuan 320317, Taiwan
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3
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Mondal K, Mukhopadhyay N, Sengupta A, Roy T, Das P. Exploiting Coordination Behavior of 7-Azaindole for Mechanistic Investigation of Chan-Lam Coupling and Application to 7-Azaindole Based Pharmacophores. Chemistry 2023; 29:e202203718. [PMID: 36511941 DOI: 10.1002/chem.202203718] [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: 11/29/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022]
Abstract
Multiple spectroscopic techniques, along with single-crystal X-ray analysis, have been used to reveal the detailed structural and electronic information on reaction intermediates of a new copper(II)-DBU catalytic system for the N-arylation of 7-Azaindole. The reaction mixture of Chan-Lam cross-coupling yields two dimeric copper(II)-7-azaindole complexes, including one attached with DBU, prior to adding arylboronic acid and are confirmed structurally and spectroscopically. A suitable mechanism has been proposed using the dimeric copper(II) complex as a catalyst for the coupling reactions. The role of DBU as a base and also as an auxiliary ligand in the course of the reaction has been established. The transmetalated monomeric aryl-copper(II) species generated from the dimeric unit is oxidized by another equivalent of copper(II) to yield an aryl-copper(III) intermediate for facile N-arylation, which has been authenticated with UV-vis spectroscopy. The regeneration of the copper(II)-catalyst by aerial oxidation of colorless copper(I) species (generated via reductive elimination and disproportionation step) is confirmed by mass and absorption spectroscopy. Detailed DFT and TD-DFT calculations help to rationalize the proposed reaction intermediates and their corresponding electronic transitions. Moreover, the confirmation of copper(I)-7-azaindole intermediate via HRMS reaffirmed the involvement of Cu(II)/Cu(III)/Cu(I) species in the Chan-Lam type of coupling. A medicinally-important 7-azaindole-based SHP2 inhibitor has been synthesized via sequential arylation.
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Affiliation(s)
- Krishanu Mondal
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India
| | - Narottam Mukhopadhyay
- Department of Chemical Sciences I, ndian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, 741 246, India
| | - Arunava Sengupta
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India
| | - Tanumay Roy
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India
| | - Parthasarathi Das
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India
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4
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Park J, Jang D, Son J, An J, Park Y, Bae H, Kim M, Lee J. Copper(I)-Mediated Decarboxylative N-Arylation of Dioxazolones: Synthesis of N-Aryl Amides. Synlett 2023. [DOI: 10.1055/s-0041-1738431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
AbstractDioxazolones, which are potent amide precursors, have been widely explored for the formation of C–N bonds with the help of transition-metal catalysts. Here, we highlight our recent studies on the synthesis of N-aryl amides using dioxazolones and boronic acids in the presence of copper(I) chloride under mild conditions. The versatility of the developed reaction is demonstrated by its wide range of functional-group tolerances as well as the release of nontoxic carbon dioxide. Optimization screenings reveal that a fluorine additive improves the desired reactivity toward the intended transformation. The addition of triphenylphosphine results in an N-acyl iminophosphorane, suggesting the involvement of an N-acyl nitrene intermediate in this transformation.
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Affiliation(s)
- Jinhwan Park
- Department of Chemical Engineering (BK21 FOUR Graduate Program), Dong-A University
| | - Dongkyu Jang
- Department of Chemical Engineering (BK21 FOUR Graduate Program), Dong-A University
| | - Jongwoo Son
- Department of Chemical Engineering (BK21 FOUR Graduate Program), Dong-A University
- Department of Chemistry, Dong-A University
| | - Jihye An
- Department of Chemical Engineering (BK21 FOUR Graduate Program), Dong-A University
| | - Yeongmi Park
- Department of Chemical Engineering (BK21 FOUR Graduate Program), Dong-A University
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5
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Chemoselective Chan-Lam and reductive nitroarene coupling of boronic acid using an octahedral Ni-DMAP complex as catalyst. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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6
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Cui Y, Zhao Y, Shen J, Zhang G, Ding C. The stable "F-SO 2 +" donor provides a mild and efficient approach to nitriles and amides. RSC Adv 2022; 12:33064-33068. [PMID: 36425170 PMCID: PMC9672908 DOI: 10.1039/d2ra05890a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 10/20/2022] [Indexed: 10/17/2023] Open
Abstract
In this update, we developed a mild, efficient and practical method using fluorosulfuryl imidazolium salt A as an environment friendly promoter for conversion of oximes to nitriles or amides via β-elimination or Beckmann rearrangement in almost quantitative yield in 10 minutes. The target products were generated in gram-scale and could be collected through crystallization without silica gel column purification in excellent yield.
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Affiliation(s)
- Yin Cui
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Yiyong Zhao
- Zhejiang Ecological Environment Low Carbon Development Center Hangzhou 310014 P. R. China
| | - Junjie Shen
- Zhejiang Kefeng New Material Co. LTD Huzhou 313200 P. R. China
| | - Guofu Zhang
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Chengrong Ding
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
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7
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Xu S, Guo H, Liu Y, Chang W, Feng J, He X, Zhang Z. Rh(I)-Catalyzed Coupling of Azides with Boronic Acids Under Neutral Conditions. Org Lett 2022; 24:5546-5551. [PMID: 35880819 DOI: 10.1021/acs.orglett.2c02053] [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
Because of the importance of polyfunctional amines, C-N bond formation is important in synthetic organic chemistry. Here we present a neutral amination reaction using azides as the nitrogen source and arylboronic acids with a rhodium(I) catalyst to afford alkyl-aryl and aryl-aryl secondary amines. Natural products and pharmaceutical derivatives were applied, and gram-scale reactions were performed, which demonstrated the utility. Mechanistic experiments and DFT calculations suggested that the reaction involves a metal-nitrene intermediate.
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Affiliation(s)
- Shiyang Xu
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Hong Guo
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Yuhan Liu
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Wenxu Chang
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Jiyao Feng
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Xiongkui He
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Zhenhua Zhang
- College of Science, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
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8
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Adegboyega AK, Son J. Reaction of Dioxazolones with Boronic Acids: Copper-Mediated Synthesis of N-Aryl Amides via N-Acyl Nitrenes. Org Lett 2022; 24:4925-4929. [PMID: 35776142 DOI: 10.1021/acs.orglett.2c01837] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Dioxazolones, as direct amide sources, have been used with boronic acids in the presence of copper(I) chloride to access N-aryl amides at room temperature. The versatility of the developed reaction is proven by ample scope having a wide range of functional group tolerance. The reaction optimization conditions revealed that a fluorine additive demonstrated improved reactivity toward the intended transformation. The addition of triphenylphosphine resulted in N-acyl iminophosphorane, suggesting the involvement of an N-acyl nitrene intermediate.
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Affiliation(s)
| | - Jongwoo Son
- Department of Chemistry, Dong-A University, Busan 49315, South Korea.,Department of Chemical Engineering (BK21 FOUR Graduate Program), Dong-A University, Busan 49315, South Korea
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9
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Yang L, Huang Y, Yu W, Fan L, Wang T, Fu J. Copper-Catalyzed Oxidative Coupling of Quinazoline-3-Oxides: Synthesis of O-Quinazolinic Carbamates. J Org Chem 2022; 87:5136-5148. [DOI: 10.1021/acs.joc.1c03098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lingyun Yang
- National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
| | - Yangfei Huang
- National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
| | - Weijie Yu
- National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
| | - Lijia Fan
- National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
| | - Tao Wang
- National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
| | - Junkai Fu
- National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
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10
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Wang SN, Zhang GY, Shoberu A, Zou JP. Copper-Catalyzed Coupling of Amines with Carbazates: An Approach to Carbamates. J Org Chem 2021; 86:9067-9075. [PMID: 34139836 DOI: 10.1021/acs.joc.1c01031] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new approach for the preparation of carbamates via the copper-catalyzed cross-coupling reaction of amines with alkoxycarbonyl radicals generated from carbazates is described. This environmentally friendly protocol takes place under mild conditions and is compatible with a wide range of amines, including aromatic/aliphatic and primary/secondary substrates.
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Affiliation(s)
- Song-Ning Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Guo-Yu Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Adedamola Shoberu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Jian-Ping Zou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
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11
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Wang M, Liu Y, Wang L, Lu H, Feng L, Gao H. Cascade Chan‐Lam C−O Coupling/[3,3]‐Rearrangement of Arylhydroxylamines with Arylboronic Acids Toward NOBIN Analogues. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001570] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Min Wang
- School of Chemistry and Chemical Engineering Key Laboratory of Colloid and Interface Chemistry Ministry of Education Shandong University Ji'nan 250100 People's Republic of China
| | - Yue Liu
- School of Chemistry and Chemical Engineering Key Laboratory of Colloid and Interface Chemistry Ministry of Education Shandong University Ji'nan 250100 People's Republic of China
| | - Liying Wang
- School of Chemistry and Chemical Engineering Key Laboratory of Colloid and Interface Chemistry Ministry of Education Shandong University Ji'nan 250100 People's Republic of China
| | - Haifeng Lu
- School of Chemistry and Chemical Engineering Key Laboratory of Colloid and Interface Chemistry Ministry of Education Shandong University Ji'nan 250100 People's Republic of China
| | - Lei Feng
- School of Chemistry and Chemical Engineering Key Laboratory of Colloid and Interface Chemistry Ministry of Education Shandong University Ji'nan 250100 People's Republic of China
| | - Hongyin Gao
- School of Chemistry and Chemical Engineering Key Laboratory of Colloid and Interface Chemistry Ministry of Education Shandong University Ji'nan 250100 People's Republic of China
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12
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Vijayan A, Rao DN, Radhakrishnan KV, Lam PYS, Das P. Advances in Carbon–Element Bond Construction under Chan–Lam Cross-Coupling Conditions: A Second Decade. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1705971] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AbstractCopper-mediated carbon–heteroatom bond-forming reactions involving a wide range of substrates have been in the spotlight for many organic chemists. This review highlights developments between 2010 and 2019 in both stoichiometric and catalytic copper-mediated reactions, and also examples of nickel-mediated reactions, under modified Chan–Lam cross-coupling conditions using various nucleophiles; examples include chemo- and regioselective N-arylations or O-arylations. The utilization of various nucleophiles as coupling partners together with reaction optimization (including the choice of copper source, ligands, base, and other additives), limitations, scope, and mechanisms are examined; these have benefitted the development of efficient and milder methods. The synthesis of medicinally valuable or pharmaceutically important nitrogen heterocycles, including isotope-labeled compounds, is also included. Chan–Lam coupling reaction can now form twelve different C–element bonds, making it one of the most diverse and mild reactions known in organic chemistry.1 Introduction2 Construction of C–N and C–O Bonds2.1 C–N Bond Formation2.1.1 Original Discovery via Stoichiometric Copper-Mediated C–N Bond Formation2.1.2 Copper-Catalyzed C–N Bond Formation2.1.3 Coupling with Azides, Sulfoximines, and Sulfonediimines as Nitrogen Nucleophiles2.1.4 Coupling with N,N-Dialkylhydroxylamines2.1.5 Enolate Coupling with sp3-Carbon Nucleophiles2.1.6 Nickel-Catalyzed Chan–Lam Coupling2.1.7 Coupling with Amino Acids2.1.8 Coupling with Alkylboron Reagents2.1.9 Coupling with Electron-Deficient Heteroarylamines2.1.10 Selective C–N Bond Formation for the Synthesis of Heterocycle-Containing Compounds2.1.11 Using Sulfonato-imino Copper(II) Complexes2.2 C–O Bond Formation2.2.1 Coupling with (Hetero)arylboron Reagents2.2.2 Coupling with Alkyl- and Alkenylboron Reagents3 C–Element (Element = S, P, C, F, Cl, Br, I, Se, Te, At) Bond Forma tion under Modified Chan–Lam Conditions4 Conclusions
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Affiliation(s)
- Ajesh Vijayan
- Department of Chemistry, CHRIST (Deemed to be University)
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13
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Affiliation(s)
- Jin‐Quan Chen
- School of Chemistry and Environmental EngineeringWuhan Institute of Technology Wuhan 430205 People's Republic of China
| | - Jing‐Hang Li
- School of Chemistry and Environmental EngineeringWuhan Institute of Technology Wuhan 430205 People's Republic of China
| | - Zhi‐Bing Dong
- School of Chemistry and Environmental EngineeringWuhan Institute of Technology Wuhan 430205 People's Republic of China
- Key Laboratory of Green Chemical ProcessMinistry of EducationWuhan Institute of Technology Wuhan 430205 People's Republic of China
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional MoleculesHubei University Wuhan 430062 People's Republic of China
- Hubei key Laboratory of Novel Reactor and Green Chemistry TechnologyWuhan Institute of Technology Wuhan 430205 People's Republic of China
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14
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Akatyev N, Il'in M, Il'in(Jr.) M, Peregudova S, Peregudov A, Buyanovskaya A, Kudryavtsev K, Dubovik A, Grinberg V, Orlov V, Pavlov A, Novikov V, Volkov I, Belokon Y. Chan‐Evans‐Lam C−N Coupling Promoted by a Dinuclear Positively Charged Cu(II) Complex. Catalytic Performance and Some Evidence for the Mechanism of CEL Reaction Obviating Cu(III)/Cu(I) Catalytic Cycle. ChemCatChem 2020. [DOI: 10.1002/cctc.202000212] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Nikolay Akatyev
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
| | - Mikhail Il'in
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
| | - Mikhail Il'in(Jr.)
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
| | - Svetlana Peregudova
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
| | - Alexander Peregudov
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
| | - Anastasiya Buyanovskaya
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
| | - Kirill Kudryavtsev
- D. I. Mendeleyev University of Chemical Technology of Russia Miusskaya sq. 19 125047 Moscow Russia
| | - Alexander Dubovik
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
- N.M. Emanuel Institute of Biochemical Physics Russian Academy of Sciences Kosygin St. 4 119334 Moscow Russia
| | - Valerij Grinberg
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
| | - Victor Orlov
- M.V. Lomonosov Moscow State UniversityA.N. Belozersky Institute of Physico-Chemical Biology Leninskie Gory, 1/40 119991 Moscow Russia
| | - Alexander Pavlov
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
| | - Valentin Novikov
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
| | - Ilya Volkov
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
| | - Yuri Belokon
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov St. 28 119991 Moscow Russia
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15
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Mudithanapelli C, Kim MH. Metal-free late-stage C(sp 2)-H functionalization of N-aryl amines with various sodium salts. Org Biomol Chem 2020; 18:450-464. [PMID: 31799581 DOI: 10.1039/c9ob02217a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Metal-free consecutive C(sp2)-X (X = Cl, Br, S, N) bond formations of N-aryl amines (cyclic, fused, carbamate, and aminium radicals) were achieved under mild conditions using [bis(trifluoroacetoxy)iodo]benzene (PIFA) and simple nonharmful sodium salts. This direct and selective C(sp2)-H functionalization showed excellent functional group compatibility, cost effectiveness, and late-stage applicability for the synthesis of biologically active natural products. Two mechanisms were proposed to explain the ortho- or para-preference, as well as the accelerating effect of CH3NO2.
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Affiliation(s)
- Chandrashekar Mudithanapelli
- Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, 191 Hambakmoeiro, Yeonsu-gu, Incheon 21936, Republic of Korea.
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16
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Kumar LR, Thimmalapura V, Panduranga V, Mahesh M, Ramana PV, Sureshbabu VV. Copper catalyzed aryl amidation between Nα-Fmoc-protected amino-acid azides and aryl boronic acids. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1704008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- L. Roopesh Kumar
- Peptide Research Laboratory, Department of Studies in Chemistry, Bangalore University, Central College Campus, Bangalore, India
| | - Vishwanatha Thimmalapura
- Peptide Research Laboratory, Department of Studies in Chemistry, Bangalore University, Central College Campus, Bangalore, India
| | - Veladi Panduranga
- Peptide Research Laboratory, Department of Studies in Chemistry, Bangalore University, Central College Campus, Bangalore, India
| | - Mandipogula Mahesh
- Department of Chemistry, Sri Krishnadevaraya University, Anantapur, India
| | - P. Venkata Ramana
- Department of Chemistry, Sri Krishnadevaraya University, Anantapur, India
| | - Vommina V. Sureshbabu
- Peptide Research Laboratory, Department of Studies in Chemistry, Bangalore University, Central College Campus, Bangalore, India
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West MJ, Fyfe JWB, Vantourout JC, Watson AJB. Mechanistic Development and Recent Applications of the Chan–Lam Amination. Chem Rev 2019; 119:12491-12523. [DOI: 10.1021/acs.chemrev.9b00491] [Citation(s) in RCA: 159] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Matthew J. West
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - James W. B. Fyfe
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - Julien C. Vantourout
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Allan J. B. Watson
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
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18
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Jiao LY, Zhang Z, Yin XM, Li Z, Ma XX. Copper catalyzed synthesis of aryl/alkyl mixed phosphates from diphenylphosphoryl azides and aliphatic alcohols under mild conditions. J Catal 2019. [DOI: 10.1016/j.jcat.2019.09.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Li S, Khan R, Zhang X, Yang Y, Wang Z, Zhan Y, Dai Y, Liu YE, Fan B. One stone two birds: cobalt-catalyzed in situ generation of isocyanates and benzyl alcohols for the synthesis of N-aryl carbamates. Org Biomol Chem 2019; 17:5891-5896. [PMID: 31166354 DOI: 10.1039/c9ob00924h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient method for the synthesis of N-aryl carbamates from N-Boc-protected amines has been developed. The cobalt-catalyzed in situ generation of isocyanates from N-Boc-protected amines and benzyl alcohols from benzyl formates has been achieved for the first time, which in turn furnished the corresponding benzyl carbamates in moderate to high yields. The reaction was catalyzed by CoI2 with tris-(4-dimethylaminophenyl)-phosphine as the ligand and zinc powder as the reductant. The developed reaction conditions were found to be compatible for aromatic amines with both electron-donating and -withdrawing substituents.
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Affiliation(s)
- Sida Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China.
| | - Ruhima Khan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China.
| | - Xia Zhang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China.
| | - Yong Yang
- Chongqing Academy of Chinese Materia Medica, Chongqing, 400065, China.
| | - Zheting Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China.
| | - Yong Zhan
- Chongqing Academy of Chinese Materia Medica, Chongqing, 400065, China.
| | - Yuze Dai
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China.
| | - Yue-E Liu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China.
| | - Baomin Fan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China.
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20
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Won SY, Kim SE, Kwon YJ, Shin I, Ham J, Kim WS. Chan–Lam coupling reaction of sulfamoyl azides with arylboronic acids for synthesis of unsymmetrical N-arylsulfamides. RSC Adv 2019; 9:2493-2497. [PMID: 35520509 PMCID: PMC9059883 DOI: 10.1039/c8ra09219b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 01/14/2019] [Indexed: 11/27/2022] Open
Abstract
An efficient method was developed for the synthesis of unsymmetrical N-arylsulfamides using sulfamoyl azides and arylboronic acids in the presence of 10 mol% of copper chloride as the catalyst. The reaction was facilitated in MeOH in an open flask at room temperature. Unlike the coupling of sulfamides and boronic acids, the use of sulfamoyl azides was found to be beneficial with respect to the yield and reaction time. An efficient method was developed for the synthesis of unsymmetrical N-arylsulfamides using sulfamoyl azides and arylboronic acids in the presence of 10 mol% of copper chloride as the catalyst.![]()
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Affiliation(s)
- Suk-Young Won
- Department of Chemistry and Nanoscience
- Ewha Womans University
- Seoul 03760
- South Korea
| | - Seo-Eun Kim
- Department of Chemistry and Nanoscience
- Ewha Womans University
- Seoul 03760
- South Korea
| | - Yong-Ju Kwon
- Department of Chemistry and Nanoscience
- Ewha Womans University
- Seoul 03760
- South Korea
| | - Inji Shin
- Therapeutics & Biotechnology Division/Innovative Therapeutics Research Center
- Korea Research Institute of Chemical Technology (KRICT)
- Daejeon 34602
- South Korea
- Department of Medicinal and Pharmaceutical Chemistry
| | - Jungyeob Ham
- Natural Product Research Institute
- Korea Institute of Science and Technology (KIST)
- Gangneung 25451
- South Korea
| | - Won-Suk Kim
- Department of Chemistry and Nanoscience
- Ewha Womans University
- Seoul 03760
- South Korea
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21
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Sardarian AR, Dindarloo Inaloo I, Zangiabadi M. An Fe3O4@SiO2/Schiff base/Cu(ii) complex as an efficient recyclable magnetic nanocatalyst for selective mono N-arylation of primary O-alkyl thiocarbamates and primary O-alkyl carbamates with aryl halides and arylboronic acids. NEW J CHEM 2019. [DOI: 10.1039/c9nj00028c] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient and efficient selective mono N-arylation of primary O-alkyl thiocarbamates and carbamates is reported by a recyclable magnetic Cu(ii) nanocatalyst.
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Affiliation(s)
- Ali Reza Sardarian
- Chemistry Department
- College of Sciences
- Shiraz University
- Shiraz 71946-84795
- Iran
| | | | - Milad Zangiabadi
- Chemistry Department
- College of Sciences
- Shiraz University
- Shiraz 71946-84795
- Iran
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22
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Wan Y, Zhang Z, Ma N, Bi J, Zhang G. Acylamino-Directed Specific Sequential Difunctionalizations of Anilides via Metal-Free Relay Reactions for p-Oxygen and o-Nitrogen Incorporation. J Org Chem 2018; 84:780-791. [DOI: 10.1021/acs.joc.8b02636] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yameng Wan
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Zhiguo Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Nana Ma
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Jingjing Bi
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Guisheng Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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23
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Reddy LR, Kotturi S, Waman Y, Ravinder Reddy V, Patel C, Kobarne A, Kuttappan S. N-Arylation of Carbamates through Photosensitized Nickel Catalysis. J Org Chem 2018; 83:13854-13860. [PMID: 30299099 DOI: 10.1021/acs.joc.8b02182] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Leleti Rajender Reddy
- Piramal Discovery Solutions, Pharmaceutical Special Economic Zone, Sarkhej Bavla Highway, Ahmedabad, Gujarat 382213, India
| | - Sharadsrikar Kotturi
- Piramal Discovery Solutions, Pharmaceutical Special Economic Zone, Sarkhej Bavla Highway, Ahmedabad, Gujarat 382213, India
| | - Yogesh Waman
- Piramal Discovery Solutions, Pharmaceutical Special Economic Zone, Sarkhej Bavla Highway, Ahmedabad, Gujarat 382213, India
| | - Vudem Ravinder Reddy
- Piramal Discovery Solutions, Pharmaceutical Special Economic Zone, Sarkhej Bavla Highway, Ahmedabad, Gujarat 382213, India
| | - Chirag Patel
- Piramal Discovery Solutions, Pharmaceutical Special Economic Zone, Sarkhej Bavla Highway, Ahmedabad, Gujarat 382213, India
| | - Ajinath Kobarne
- Piramal Discovery Solutions, Pharmaceutical Special Economic Zone, Sarkhej Bavla Highway, Ahmedabad, Gujarat 382213, India
| | - Sasikumar Kuttappan
- Piramal Discovery Solutions, Pharmaceutical Special Economic Zone, Sarkhej Bavla Highway, Ahmedabad, Gujarat 382213, India
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24
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Xu S, Huang B, Qiao G, Huang Z, Zhang Z, Li Z, Wang P, Zhang Z. Rh(III)-Catalyzed C-H Activation of Boronic Acid with Aryl Azide. Org Lett 2018; 20:5578-5582. [PMID: 30179495 DOI: 10.1021/acs.orglett.8b02247] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A Rh(III)-catalyzed C-H activation of boronic acid with aryl azide to obtain unsymmetric carbazoles, 1 H-indoles, or indolines has been developed. The reaction constructs dual distinct C-N bonds via sp2/sp3 C-H activation and rhodium nitrene insertion. Synthetically, this approach represents an access to widely used carbazole derivatives. The practical application to CBP and unsymmetric TCTA derivatives has also been performed. Mechanistic experiments and DFT calculations demonstrate that a five-membered rhodacycle species is the key intermediate.
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Affiliation(s)
- Shiyang Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, and Department of Applied Chemistry , China Agricultural University , Beijing 100193 , China
| | - Baoliang Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, and Department of Applied Chemistry , China Agricultural University , Beijing 100193 , China
| | - Guanyu Qiao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, and Department of Applied Chemistry , China Agricultural University , Beijing 100193 , China
| | - Ziyue Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, and Department of Applied Chemistry , China Agricultural University , Beijing 100193 , China
| | - Zhen Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, and Department of Applied Chemistry , China Agricultural University , Beijing 100193 , China
| | - Zongyang Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, and Department of Applied Chemistry , China Agricultural University , Beijing 100193 , China
| | - Peng Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, and Department of Applied Chemistry , China Agricultural University , Beijing 100193 , China
| | - Zhenhua Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, and Department of Applied Chemistry , China Agricultural University , Beijing 100193 , China
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25
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Synthetic applications and methodology development of Chan-Lam coupling: a review. Mol Divers 2018; 23:215-259. [PMID: 30159807 DOI: 10.1007/s11030-018-9870-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 08/25/2018] [Indexed: 01/17/2023]
Abstract
Chan-Lam coupling is one of the most popular and easy methods to perform arylation of amines (N-arylations). This cross-coupling is generally performed by reacting aryl boronate derivatives with a variety of substrates involving nitrogen containing functional groups such as amines, amides, ureas, hydrazine, carbamates. This article summarizes the synthetic applications of this reaction and the efforts of scientists to develop novel and efficient methodologies for this reaction.
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26
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Ghosh P, Das S. Ligand Free Approach for the Copper(II)‐Mediated C‐NH
2
Arylation of 4‐Quinolone Derivatives Under Ambient Condition. ChemistrySelect 2018. [DOI: 10.1002/slct.201801756] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Prasanjit Ghosh
- Department of chemistryUniversity of North Bengal, Darjeeling 734013 West Bengal
| | - Sajal Das
- Department of chemistryUniversity of North Bengal, Darjeeling 734013 West Bengal
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27
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Lee H, Lee JK, Min SJ, Seo H, Lee Y, Rhee H. Copper(I)-Catalyzed Synthesis of 1,4-Disubstituted 1,2,3-Triazoles from Azidoformates and Aryl Terminal Alkynes. J Org Chem 2018; 83:4805-4811. [DOI: 10.1021/acs.joc.8b00022] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Heejin Lee
- Department of Bionanotechnology, Hanyang University, Sangnok-gu Hanyang Daehak-ro 55, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Jae Kyun Lee
- Center for Neuro-Medicine, Korea Institute of Science and Technology (KIST), Seongbuk-gu Hwarangro 14-gil 5, Seoul 136-791, Republic of Korea
| | - Sun-Joon Min
- Department of Applied Chemistry, Hanyang University, Sangnok-gu Hanyang Daehak-ro 55, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Hyeonglim Seo
- Department of Bionanotechnology, Hanyang University, Sangnok-gu Hanyang Daehak-ro 55, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Youngbok Lee
- Department of Bionanotechnology, Hanyang University, Sangnok-gu Hanyang Daehak-ro 55, Ansan, Gyeonggi-do 15588, Republic of Korea
- Department of Applied Chemistry, Hanyang University, Sangnok-gu Hanyang Daehak-ro 55, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Hakjune Rhee
- Department of Bionanotechnology, Hanyang University, Sangnok-gu Hanyang Daehak-ro 55, Ansan, Gyeonggi-do 15588, Republic of Korea
- Department of Applied Chemistry, Hanyang University, Sangnok-gu Hanyang Daehak-ro 55, Ansan, Gyeonggi-do, 15588, Republic of Korea
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28
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Kumar SV, Ma D. Synthesis of N-(Hetero)aryl Carbamates via CuI/MNAO Catalyzed Cross-Coupling of (Hetero)aryl Halides with Potassium Cyanate in Alcohols. J Org Chem 2018; 83:2706-2713. [PMID: 29406714 DOI: 10.1021/acs.joc.7b03175] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient route to N-(hetero)aryl carbamates was developed through CuI/MNAO [2-((2-methylnaphthalen-1-yl)amino)-2-oxoacetic acid] catalyzed cross-coupling of (hetero)aryl chlorides with potassium cyanate in alcohols at 120-130 °C. This method utilizes broadly available substrates to afford various N-(hetero)aryl carbamates in good to excellent yields. Moreover, (hetero)aryl bromides and (hetero)aryl iodides were also reacted at low catalyst loadings and relatively low temperatures to provide N-(hetero)aryl carbamates.
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Affiliation(s)
- S Vijay Kumar
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Dawei Ma
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
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29
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Mehra MK, Tantak MP, Arun V, Kumar I, Kumar D. Metal-free regioselective formation of C-N and C-O bonds with the utilization of diaryliodonium salts in water: facile synthesis of N-arylquinolones and aryloxyquinolines. Org Biomol Chem 2018; 15:4956-4961. [PMID: 28567465 DOI: 10.1039/c7ob00940b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Regioselective construction of crucial C-N and C-O bonds leading to N-arylquinolones and aryloxyquinolines has been accomplished by employing easily accessible diaryliodonium salts and quinolones in water under metal- and ligand-free conditions. This operationally simple strategy is significant due to mild reaction conditions, high product yields, recyclability of released iodoarenes and scalability to the gram level. The practical utility of the developed protocol was proved by the arylation of medicinally important heterocycles like acridin-9(10H)-one, 3-methylquinoxalin-2(1H)-one and 1H-benzo[d]imidazol-2(3H)-one.
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Affiliation(s)
- Manish Kumar Mehra
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
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30
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Ren Y, Rousseaux SAL. Metal-Free Synthesis of Unsymmetrical Ureas and Carbamates from CO 2 and Amines via Isocyanate Intermediates. J Org Chem 2018; 83:913-920. [PMID: 29226676 DOI: 10.1021/acs.joc.7b02905] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A mild and metal-free synthesis of aryl isocyanates from arylamines under an atmosphere of CO2 was developed. The carbamic acid intermediate, derived from the arylamine starting material and CO2 in the presence of DBU, is dehydrated by activated sulfonium reagents to generate the corresponding isocyanate. The latter can be detected by in situ IR and trapped by various amines and alcohols to make unsymmetrical ureas and carbamates, respectively. Dicarbamates can also be prepared in good yields via the mild dehydration of the corresponding dicarbamic acids.
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Affiliation(s)
- Yiming Ren
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Sophie A L Rousseaux
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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31
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Dindarloo Inaloo I, Majnooni S. Ureas as safe carbonyl sources for the synthesis of carbamates with deep eutectic solvents (DESs) as efficient and recyclable solvent/catalyst systems. NEW J CHEM 2018. [DOI: 10.1039/c8nj02624f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A simple, efficient and eco-friendly one-pot synthesis of primary, N-mono- and N-disubstituted carbamates is developed from ureas.
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Affiliation(s)
| | - Sahar Majnooni
- Department of Chemistry
- University of Isfahan
- Isfahan 81746-73441
- Iran
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32
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Bhunia S, Pawar GG, Kumar SV, Jiang Y, Ma D. Selected Copper-Based Reactions for C−N, C−O, C−S, and C−C Bond Formation. Angew Chem Int Ed Engl 2017; 56:16136-16179. [DOI: 10.1002/anie.201701690] [Citation(s) in RCA: 382] [Impact Index Per Article: 54.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Subhajit Bhunia
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 China
| | - Govind Goroba Pawar
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 China
| | - S. Vijay Kumar
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 China
| | - Yongwen Jiang
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 China
| | - Dawei Ma
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 China
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33
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Bhunia S, Pawar GG, Kumar SV, Jiang Y, Ma D. Ausgewählte Kupfer-katalysierte Reaktionen für die Bildung von C-N-, C-O-, C-S- und C-C-Bindungen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701690] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Subhajit Bhunia
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 China
| | - Govind Goroba Pawar
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 China
| | - S. Vijay Kumar
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 China
| | - Yongwen Jiang
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 China
| | - Dawei Ma
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 China
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34
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Wan H, Xu J, Liu Q, Li H, Lu Y, Abe M, Zeng X. Contrasting Photolytic and Thermal Decomposition of Phenyl Azidoformate: The Curtius Rearrangement Versus Intramolecular C–H Amination. J Phys Chem A 2017; 121:8604-8613. [DOI: 10.1021/acs.jpca.7b07969] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Huabin Wan
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
| | - Jian Xu
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
| | - Qian Liu
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
| | - Hongmin Li
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
| | - Yan Lu
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
| | - Manabu Abe
- Department
of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Xiaoqing Zeng
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
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35
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36
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Bukowska A, Bukowski W, Bester K, Hus K. Polymer supported copper(II) amine-imine complexes in the C-N and A3
coupling reactions. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3847] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Agnieszka Bukowska
- Faculty of Chemistry; Rzeszów University of Technology; Powstańców W-wy 6 35-959 Rzeszów Poland
| | - Wiktor Bukowski
- Faculty of Chemistry; Rzeszów University of Technology; Powstańców W-wy 6 35-959 Rzeszów Poland
| | - Karol Bester
- Faculty of Chemistry; Rzeszów University of Technology; Powstańców W-wy 6 35-959 Rzeszów Poland
| | - Krzysztof Hus
- Faculty of Chemistry; Rzeszów University of Technology; Powstańców W-wy 6 35-959 Rzeszów Poland
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37
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Liu S, Zu W, Zhang J, Xu L. Chemoselective N-arylation of aminobenzamides via copper catalysed Chan–Evans–Lam reactions. Org Biomol Chem 2017; 15:9288-9292. [DOI: 10.1039/c7ob02491f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Chemoselective N-arylation of unprotected aminobenzamides was achieved via Cu-catalysed Chan–Evans–Lam cross-coupling with aryl boronic acids for the first time.
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Affiliation(s)
- Shuai Liu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi University
- Shihezi
- China
| | - Weisai Zu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi University
- Shihezi
- China
| | - Jinli Zhang
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi University
- Shihezi
- China
- Key Laboratory for Systems Bioengineering MOE
| | - Liang Xu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi University
- Shihezi
- China
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38
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Ahmed EAMA, Lu X, Gong TJ, Zhang ZQ, Xiao B, Fu Y. Copper-catalyzed/mediated borylation reactions of epoxides with diboron reagents: access to β-hydroxyl boronic esters. Chem Commun (Camb) 2017; 53:909-912. [DOI: 10.1039/c6cc07924e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We report the first copper-catalyzed/mediated borylative ring opening reaction of epoxides.
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Affiliation(s)
- Ebrahim-Alkhalil M. A. Ahmed
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Xi Lu
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Tian-Jun Gong
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Zhen-Qi Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Bin Xiao
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
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39
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Siva Reddy A, Ranjith Reddy K, Nageswar Rao D, Jaladanki CK, Bharatam PV, Lam PYS, Das P. Copper(ii)-catalyzed Chan–Lam cross-coupling: chemoselective N-arylation of aminophenols. Org Biomol Chem 2017; 15:801-806. [DOI: 10.1039/c6ob02444k] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Copper(ii)-catalyzed boronic acid promoted chemoselective N-arylation of unprotected aminophenols has been developed.
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Affiliation(s)
- A. Siva Reddy
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - K. Ranjith Reddy
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - D. Nageswar Rao
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Chaitanya K. Jaladanki
- Department of Medicinal Chemistry
- National Institute of Educational and Research (NIPER)
- Mohali
- India
| | - Prasad V. Bharatam
- Department of Medicinal Chemistry
- National Institute of Educational and Research (NIPER)
- Mohali
- India
| | | | - Parthasarathi Das
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
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40
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Satheesh V, Sengoden M, Punniyamurthy T. “On Water” C(sp3)–H Functionalization/C–O/C–N Bonds Formations: Synthesis of Functionalized Oxazolidines and Imidazolidines. J Org Chem 2016; 81:9792-9801. [DOI: 10.1021/acs.joc.6b01850] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vanaparthi Satheesh
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Mani Sengoden
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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41
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Kim H, Park G, Park J, Chang S. A Facile Access to Primary Alkylamines and Anilines via Ir(III)-Catalyzed C–H Amidation Using Azidoformates. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01869] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hyunwoo Kim
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Gyeongtae Park
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Juhyeon Park
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 305-701, Korea
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42
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Rao DN, Rasheed S, Kumar KA, Reddy AS, Das P. Copper-Catalyzed CNH2Arylation of 2-Aminobenzimidazoles and Related C-Amino-NH-azoles. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600035] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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43
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Kumar KA, Kannaboina P, Jaladanki CK, Bharatam PV, Das P. Copper-CatalyzedN-Arylation of Tautomerizable Heterocycles with Boronic Acids and Its Application to Synthesis of Oxygenated Carbazoles. ChemistrySelect 2016. [DOI: 10.1002/slct.201600147] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Karampoori Anil Kumar
- Academy of Scientific and Innovative Research (AcSIR); Jammu-Campus; Canal Road Jammu- 180001 India
- Medicinal Chemistry Division; Indian Institute of Integrative Medicine (CSIR); Canal Road Jammu- 180001 India
| | - Prakash Kannaboina
- Academy of Scientific and Innovative Research (AcSIR); Jammu-Campus; Canal Road Jammu- 180001 India
- Medicinal Chemistry Division; Indian Institute of Integrative Medicine (CSIR); Canal Road Jammu- 180001 India
| | - Chaitanya K. Jaladanki
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER), Sector 67; S.A.S. Nagar - 160 062 Punjab India
| | - Prasad V. Bharatam
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER), Sector 67; S.A.S. Nagar - 160 062 Punjab India
| | - Parthasarathi Das
- Academy of Scientific and Innovative Research (AcSIR); Jammu-Campus; Canal Road Jammu- 180001 India
- Medicinal Chemistry Division; Indian Institute of Integrative Medicine (CSIR); Canal Road Jammu- 180001 India
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44
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Ghodsinia SSE, Akhlaghinia B. A high-yielding, expeditious, and multicomponent synthesis of urea and carbamate derivatives by using triphenylphosphine/trichloroisocyanuric acid system. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2015.1085038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Sara S. E. Ghodsinia
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Batool Akhlaghinia
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
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45
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Kumar KA, Kannaboina P, Rao DN, Das P. Nickel-catalyzed Chan–Lam cross-coupling: chemoselective N-arylation of 2-aminobenzimidazoles. Org Biomol Chem 2016; 14:8989-97. [DOI: 10.1039/c6ob01307d] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A complementary set of Ni- and Cu-based catalyst systems for the chemoselective N-arylation of 2-aminobenzimidazoles have been developed.
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Affiliation(s)
- K. Anil Kumar
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Prakash Kannaboina
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - D. Nageswar Rao
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Parthasarathi Das
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
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46
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Kim HK, Lee A. Facile one-pot synthesis of unsymmetrical ureas, carbamates, and thiocarbamates from Cbz-protected amines. Org Biomol Chem 2016; 14:7345-53. [DOI: 10.1039/c6ob01290f] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Zeng R, Bao L, Sheng H, Sun L, Chen M, Feng Y, Zhu M. Heterobimetallic dinuclear lanthanide alkoxide complexes as acid–base bifunctional catalysts for synthesis of carbamates under solvent-free conditions. RSC Adv 2016. [DOI: 10.1039/c6ra15160d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Heterobimetallic dinuclear lanthanide alkoxide complexes Ln2Na8(OCH2CH2NMe2)12(OH)2 [Ln: I (Nd), II (Sm), III (Yb) and IV (Y)] were used as efficient acid–base bifunctional catalysts for the synthesis of carbamates and the N-Boc protection of amines.
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Affiliation(s)
- Ruijie Zeng
- School of Chemistry and Chemical Engineering
- Center for Atomic Engineering of Advanced Materials
- Anhui University
- Hefei 230039
- P. R. China
| | - Linquan Bao
- School of Chemistry and Chemical Engineering
- Center for Atomic Engineering of Advanced Materials
- Anhui University
- Hefei 230039
- P. R. China
| | - Hongting Sheng
- School of Chemistry and Chemical Engineering
- Center for Atomic Engineering of Advanced Materials
- Anhui University
- Hefei 230039
- P. R. China
| | - Lili Sun
- School of Chemistry and Chemical Engineering
- Center for Atomic Engineering of Advanced Materials
- Anhui University
- Hefei 230039
- P. R. China
| | - Man Chen
- School of Chemistry and Chemical Engineering
- Center for Atomic Engineering of Advanced Materials
- Anhui University
- Hefei 230039
- P. R. China
| | - Yan Feng
- School of Chemistry and Chemical Engineering
- Center for Atomic Engineering of Advanced Materials
- Anhui University
- Hefei 230039
- P. R. China
| | - Manzhou Zhu
- School of Chemistry and Chemical Engineering
- Center for Atomic Engineering of Advanced Materials
- Anhui University
- Hefei 230039
- P. R. China
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48
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N -(Pyridin-2-yl)benzamide: efficient ligand for the nickel catalyzed Chan–Lam cross-coupling reaction. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.10.047] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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49
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Yang Y, Li W, Xia C, Ying B, Shen C, Zhang P. Catalyst-Controlled Selectivity in C−S Bond Formation: Highly Efficient Synthesis of C2- and C3-Sulfonylindoles. ChemCatChem 2015. [DOI: 10.1002/cctc.201500917] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yong Yang
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 P.R. China
| | - Wanmei Li
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 P.R. China
| | - Chengcai Xia
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 P.R. China
| | - Beibei Ying
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 P.R. China
| | - Chao Shen
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 P.R. China
| | - Pengfei Zhang
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 P.R. China
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50
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Rasheed S, Rao DN, Das P. Copper-Catalyzed Inter- and Intramolecular C-N Bond Formation: Synthesis of Benzimidazole-Fused Heterocycles. J Org Chem 2015; 80:9321-7. [PMID: 26322501 DOI: 10.1021/acs.joc.5b01396] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A Cu (II)-catalyzed, inter/intramolecular C-N bond formation for the synthesis of various benzimidazole-fused heterocycles in a concise manner has been reported. The robustness of this reaction is demonstrated by the synthesis of a series of benzimidazole-fused heteroaromatics (e.g., pyrido[1,2-a] benzimidazole, benzimidazo[1,2-a]quinolines, benzimidazo [1,2-a]pyrazine, benzo[4,5] imidazo[2,1-b]thiazoles) directly from 2-aminoheteroarenens and 2-iodoarylboronic acids in one-pot. The novel cascade protocol for C-N bond formation operates via unique combination of Chan-Lam type coupling followed by Ullmann-type reaction.
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Affiliation(s)
- Sk Rasheed
- Jammu Campus, Academy of Scientific and Innovative Research (AcSIR) , Jammu 180001, India.,Medicinal Chemistry Division, Indian Institute of Integrative Medicine(CSIR) , Jammu 180001, India
| | - D Nageswar Rao
- Jammu Campus, Academy of Scientific and Innovative Research (AcSIR) , Jammu 180001, India.,Medicinal Chemistry Division, Indian Institute of Integrative Medicine(CSIR) , Jammu 180001, India
| | - Parthasarathi Das
- Jammu Campus, Academy of Scientific and Innovative Research (AcSIR) , Jammu 180001, India.,Medicinal Chemistry Division, Indian Institute of Integrative Medicine(CSIR) , Jammu 180001, India
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