1
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Purkait A, Pal SVS, Soni K, Bhattacharyya K, Jana CK. Nitroso-azomethine(ene) reaction enabled annulations of nitrosoarenes, azomethines and alkenes. Chem Commun (Camb) 2024. [PMID: 39041230 DOI: 10.1039/d4cc02117g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
An unprecedented example of a nitroso-azomethine(ene) reaction is reported. Nitroso-azomethine(ene) reaction-mediated unprecedented annulation of nitrosoarenes, azomethines, and alkenes to furnish arylquinolines via arene functionalization of nitrosoarene has been developed. DFT studies provided mechanistic insights into the newly developed nitroso-azomethine(ene) reaction.
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Affiliation(s)
- Anisha Purkait
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Surya Veer Singh Pal
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Kaushik Soni
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
| | | | - Chandan K Jana
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
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2
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Zheng Q, Li X, Kurpiewska K, Dömling A. Synthesis of Tunable Fluorescent Imidazole-Fused Heterocycle Dimers. Org Lett 2022; 24:5014-5017. [PMID: 35830622 PMCID: PMC9490819 DOI: 10.1021/acs.orglett.2c01642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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A short, concise, and one-pot synthesis of imidazo-fused
heterocycle
dimers with tunable fluorescent properties has been developed. By
the first time use of glyoxal dimethyl acetal in the Groebke–Blackburn–Bienaymé
(GBB) three-component reaction (3CR), the innovation features a new
series of fluorescence-tunable imidazo-fused heterocycle dimers exhibiting
a broad substrate scope with good yields. Luminescence studies demonstrate
that these GBB-dimers possess color-tunable properties, and their
emission colors can be successively changed from blue to green and
yellow by easy substituent control.
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Affiliation(s)
- Qiang Zheng
- University of Groningen, Department of Drug Design, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Xin Li
- University of Groningen, Department of Drug Design, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Katarzyna Kurpiewska
- Department of Crystal Chemistry and Crystal Physics, Faculty of Chemistry, Jagiellonian University, 30-387 Kraków, Poland
| | - Alexander Dömling
- University of Groningen, Department of Drug Design, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
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3
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Yang X, Guo X, Yuan X, Chen B. K 2S 2O 8-promoted rearrangement of nitrones for the synthesis of benzo[ d]oxazoles. Org Chem Front 2022. [DOI: 10.1039/d2qo00680d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An efficient route for the synthesis of valuable benzoxazoles has been developed through self-oxidative cyclization with N–O bond cleavage.
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Affiliation(s)
- Xueying Yang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou, Gansu, China
| | - Xin Guo
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, China
| | - Xinglong Yuan
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou, Gansu, China
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou, Gansu, China
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4
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Purkait A, Saha S, Ghosh S, Jana CK. Lewis acid catalyzed reactivity switch: pseudo three-component annulation of nitrosoarenes and (epoxy)styrenes. Chem Commun (Camb) 2020; 56:15032-15035. [PMID: 33188668 DOI: 10.1039/d0cc02650f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Lewis acid catalyzed annulation reaction via arene functionalization of nitrosoarenes and C-C cleavage of (epoxy)styrene to provide arylquinolines is reported. The Lewis acid catalyst altered the annulation pattern providing arylquinolines instead of oxazolidines. The reaction with styrene resulted in a mixture of 2,4-diarylquinoline and 4-arylquinoline, while only 3-arylquinoline was formed from the reaction of epoxystyrene.
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Affiliation(s)
- Anisha Purkait
- Department of Chemistry, Indian Institute of Technology, Guwahati, 781039, India.
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5
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François B, Eberlin L, Berrée F, Whiting A, Carboni B. Generating Skeletal Diversity and Complexity from Boron-Substituted 1,3-Dienes and Enophiles. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000330] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Benjamin François
- Univ Rennes; CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226; 35000 Rennes France
| | - Ludovic Eberlin
- Univ Rennes; CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226; 35000 Rennes France
| | - Fabienne Berrée
- Univ Rennes; CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226; 35000 Rennes France
| | - Andrew Whiting
- Department of Chemistry; Durham University; Science Laboratories; South Road DH1 3LE Durham U.K
| | - Bertrand Carboni
- Univ Rennes; CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226; 35000 Rennes France
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6
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Roy SK, Purkait A, Aziz SMT, Jana CK. Acid mediated coupling of aliphatic amines and nitrosoarenes to indoles. Chem Commun (Camb) 2020; 56:3167-3170. [PMID: 32065174 DOI: 10.1039/c9cc09616g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Traditionally, amines react with nitrosoarenes to provide the corresponding imines or azo compounds. Herein, we report an acid mediated annulation reaction of aliphatic amines and nitrosoarenes to provide indole derivatives. The elusive direct annulation of aliphatic amines and nitrosoarenes via simultaneous C-C and C-N bond formation was achieved under metal free conditions. This conceptually novel method for indole synthesis does not require pre-functionalization steps for the new C-C and C-N bond formation. The method has been applied for an elegant synthesis of nor-neocryptolepine and neocryptolepine.
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7
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Pradhan S, Roy S, Ghosh S, Chatterjee I. Regiodivergent Aromatic Electrophilic Substitution Using Nitrosoarenes in Hexafluoroisopropanol: A Gateway for Diarylamines and
p
‐Iminoquinones Synthesis. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900788] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Suman Pradhan
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar Punjab-140001 India
| | - Sourav Roy
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar Punjab-140001 India
| | - Soumen Ghosh
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar Punjab-140001 India
| | - Indranil Chatterjee
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar Punjab-140001 India
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8
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Guo X, Han J, Liu Y, Qin M, Zhang X, Chen B. Synthesis of 2,3-Disubstituted NH Indoles via Rhodium(III)-Catalyzed C–H Activation of Arylnitrones and Coupling with Diazo Compounds. J Org Chem 2017; 82:11505-11511. [DOI: 10.1021/acs.joc.7b02105] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xin Guo
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University Gansu and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou 730000, People’s Republic of China
| | - Jianwei Han
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University Gansu and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou 730000, People’s Republic of China
| | - Yafeng Liu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University Gansu and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou 730000, People’s Republic of China
| | - Mingda Qin
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University Gansu and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou 730000, People’s Republic of China
| | - Xueguo Zhang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University Gansu and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou 730000, People’s Republic of China
| | - Baohua Chen
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University Gansu and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou 730000, People’s Republic of China
- Zhongwei High-Tech Institute of Lanzhou University, Zhongwei, Ningxia 755500, China
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9
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Adiyala PR, Sastry KNV, Kovvuri J, Nagarajan A, Reddy VG, Sayeed IB, Nayak VL, Maurya RA, Kamal A. Visible Light Driven Coupling of 2-aminopyridines and α-Keto Vinyl Azides for the Synthesis of Imidazo[1, 2-a
]pyridines and Their Cytotoxicity. ChemistrySelect 2017. [DOI: 10.1002/slct.201700952] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Praveen Reddy Adiyala
- Medicinal Chemistry & Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Kasinathuni Naga Visweswara Sastry
- Medicinal Chemistry & Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad-500 037 India
| | - Jeshma Kovvuri
- Medicinal Chemistry & Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Apoorva Nagarajan
- Medicinal Chemistry & Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Velma Ganga Reddy
- Medicinal Chemistry & Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Ibrahim Bin Sayeed
- Medicinal Chemistry & Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Vedinthe Lakshma Nayak
- Medicinal Chemistry & Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Ram Awatar Maurya
- Applied Organic Chemistry Group; Chemical Science & Technology Division; CSIR-North East Institute of Science and Technology; Jorhat Assam-785006 India
| | - Ahmed Kamal
- Medicinal Chemistry & Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad-500 037 India
- Catalytic Chemistry Research Chair; Chemistry Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
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10
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Bering L, Manna S, Antonchick AP. Sustainable, Oxidative, and Metal-Free Annulation. Chemistry 2017; 23:10936-10946. [DOI: 10.1002/chem.201702063] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Luis Bering
- Abteilung für Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Otto-Hahn-Straße 11 44227 Dortmund Germany
- Fakultät Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn-Straße 4a 44221 Dortmund Germany
| | - Srimanta Manna
- Abteilung für Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Otto-Hahn-Straße 11 44227 Dortmund Germany
- Fakultät Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn-Straße 4a 44221 Dortmund Germany
| | - Andrey P. Antonchick
- Abteilung für Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Otto-Hahn-Straße 11 44227 Dortmund Germany
- Fakultät Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn-Straße 4a 44221 Dortmund Germany
- Faculty of Science; Peoples' Friendship University of Russia; 6 Miklukho-Maklaya Street 117198 Moscow Russia
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11
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Ravi C, Adimurthy S. Synthesis of Imidazo[1,2‐a]pyridines: C‐H Functionalization in the Direction of C‐S Bond Formation. CHEM REC 2017; 17:1019-1038. [DOI: 10.1002/tcr.201600146] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 02/27/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Chitrakar Ravi
- Natural Products & Green ChemistryCSIR-Central Salt & Marine Chemicals Research Institute G.B. Marg, Bhavnagar-364002 Gujarat India
| | - Subbarayappa Adimurthy
- Natural Products & Green ChemistryCSIR-Central Salt & Marine Chemicals Research Institute G.B. Marg, Bhavnagar-364002 Gujarat India
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12
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Song Z, Antonchick AP. Catching α-aminoalkyl radicals: cyclization between tertiary alkylanilines and alkenes. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.04.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Rathore V, Sattar M, Kumar R, Kumar S. Synthesis of Unsymmetrical Diaryl Acetamides, Benzofurans, Benzophenones, and Xanthenes by Transition-Metal-Free Oxidative Cross-Coupling of sp3 and sp2 C–H Bonds. J Org Chem 2016; 81:9206-9218. [DOI: 10.1021/acs.joc.6b01771] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Vandana Rathore
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, MP 462 066, India
| | - Moh. Sattar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, MP 462 066, India
| | - Raushan Kumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, MP 462 066, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, MP 462 066, India
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14
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Zhang H, Wei Q, Wei S, Qu J, Wang B. Highly Efficient and Practical Thiocyanation of Imidazopyridines Using anN-Chlorosuccinimide/NaSCN Combination. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600485] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hailei Zhang
- State Key Laboratory of Fine Chemicals; School of Pharmaceutical Science and Technology; Dalian University of Technology; 116024 Dalian P. R. China
| | - Qian Wei
- State Key Laboratory of Fine Chemicals; School of Pharmaceutical Science and Technology; Dalian University of Technology; 116024 Dalian P. R. China
| | - Shiqiang Wei
- State Key Laboratory of Fine Chemicals; School of Pharmaceutical Science and Technology; Dalian University of Technology; 116024 Dalian P. R. China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals; School of Pharmaceutical Science and Technology; Dalian University of Technology; 116024 Dalian P. R. China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals; School of Pharmaceutical Science and Technology; Dalian University of Technology; 116024 Dalian P. R. China
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15
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Caporaso R, Manna S, Zinken S, Kochnev AR, Lukyanenko ER, Kurkin AV, Antonchick AP. Radical trideuteromethylation with deuterated dimethyl sulfoxide in the synthesis of heterocycles and labelled building blocks. Chem Commun (Camb) 2016; 52:12486-12489. [DOI: 10.1039/c6cc07196a] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A selective introduction of trideuteromethyl groups for the synthesis of labelled compounds under radical reaction conditions is demonstrated.
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Affiliation(s)
- Roberta Caporaso
- Chemical Biology
- Max Planck Institute of Molecular Physiology
- Otto-Hahn-Straβe 11
- 44227 Dortmund
- Germany
| | - Srimanta Manna
- Chemical Biology
- Max Planck Institute of Molecular Physiology
- Otto-Hahn-Straβe 11
- 44227 Dortmund
- Germany
| | - Sarah Zinken
- Chemical Biology
- Max Planck Institute of Molecular Physiology
- Otto-Hahn-Straβe 11
- 44227 Dortmund
- Germany
| | - Alexander R. Kochnev
- Department of Chemistry
- Lomonosov Moscow State University
- 1/3 Leninskie Gory
- 119991 Moscow
- Russia
| | - Evgeny R. Lukyanenko
- Department of Chemistry
- Lomonosov Moscow State University
- 1/3 Leninskie Gory
- 119991 Moscow
- Russia
| | - Alexander V. Kurkin
- Department of Chemistry
- Lomonosov Moscow State University
- 1/3 Leninskie Gory
- 119991 Moscow
- Russia
| | - Andrey P. Antonchick
- Chemical Biology
- Max Planck Institute of Molecular Physiology
- Otto-Hahn-Straβe 11
- 44227 Dortmund
- Germany
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16
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Manna S, Serebrennikova PO, Utepova IA, Antonchick AP, Chupakhin ON. Hypervalent Iodine(III) in Direct Oxidative Amination of Arenes with Heteroaromatic Amines. Org Lett 2015; 17:4588-91. [DOI: 10.1021/acs.orglett.5b02320] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Srimanta Manna
- Chemische
Biologie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn-Straße 11, 44227 Dortmund, Germany
- Fakultät
Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Straße 6, 44227 Dortmund, Germany
| | - Polina O. Serebrennikova
- Chemische
Biologie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn-Straße 11, 44227 Dortmund, Germany
- Ural Federal University, 19 Mira Straße, 620002 Ekaterinburg, Russian Federation
| | - Irina A. Utepova
- Ural Federal University, 19 Mira Straße, 620002 Ekaterinburg, Russian Federation
| | - Andrey P. Antonchick
- Chemische
Biologie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn-Straße 11, 44227 Dortmund, Germany
- Fakultät
Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Straße 6, 44227 Dortmund, Germany
| | - Oleg N. Chupakhin
- Ural Federal University, 19 Mira Straße, 620002 Ekaterinburg, Russian Federation
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17
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Adiyala PR, Mani GS, Nanubolu JB, Shekar KC, Maurya RA. Access to Imidazo[1,2-a]pyridines via Annulation of α-Keto Vinyl Azides and 2-Aminopyridines. Org Lett 2015; 17:4308-11. [PMID: 26308984 DOI: 10.1021/acs.orglett.5b02124] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel strategy for the synthesis of imidazo[1,2-a]pyridines via efficient catalyst/metal-free annulations of α-keto vinyl azides and 2-aminopyridines is described. Several imidazo[1,2-a]pyridines were synthesized from readily available vinyl azides and 2-aminopyridines and obtained in highly pure form by simply evaporating the reaction solvent. This remarkably high yielding and atom economical protocol allows the formation of three new C-N bonds through cascade reactions and rearrangements.
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Affiliation(s)
- Praveen Reddy Adiyala
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology (IICT) , Hyderabad-500007, India
| | - Geeta Sai Mani
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology (IICT) , Hyderabad-500007, India
| | | | - Kunta Chandra Shekar
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology (IICT) , Hyderabad-500007, India
| | - Ram Awatar Maurya
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology (IICT) , Hyderabad-500007, India
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18
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Manna S, Antonchick AP. Copper(I)-Catalyzed Radical Addition of Acetophenones to Alkynes in Furan Synthesis. Org Lett 2015; 17:4300-3. [DOI: 10.1021/acs.orglett.5b02114] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Srimanta Manna
- Abteilung
Chemische Biologie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
- Fakultät
Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
| | - Andrey P. Antonchick
- Abteilung
Chemische Biologie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
- Fakultät
Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
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19
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Bering L, Antonchick AP. Regioselective Metal-Free Cross-Coupling of Quinoline N-Oxides with Boronic Acids. Org Lett 2015; 17:3134-7. [PMID: 26066758 DOI: 10.1021/acs.orglett.5b01456] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A novel and operationally simple one-step C-H bond functionalization of quinoline N-oxides to 2-substituted quinolines was developed. This approach enables the regioselective functionalization under external oxidant- and metal-free conditions. The developed transformation represents the first application of the Petasis reaction in functionalization of heterocycles.
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Affiliation(s)
- Luis Bering
- †Abteilung Chemische Biologie, Max-Planck-Institut für molekulare Physiologie, Otto-Hahn-Straße 11, 44227 Dortmund, Germany.,‡Fakultät für Chemie und Chemische Biologie, Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Straße 6, 44221 Dortmund, Germany
| | - Andrey P Antonchick
- †Abteilung Chemische Biologie, Max-Planck-Institut für molekulare Physiologie, Otto-Hahn-Straße 11, 44227 Dortmund, Germany.,‡Fakultät für Chemie und Chemische Biologie, Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Straße 6, 44221 Dortmund, Germany
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20
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Yadav A, Verma A, Patel S, Kumar A, Rathore V, Meenakshi, Kumar S, Kumar S. KOtBu-mediated annulation of acetonitrile with aldehyde: synthesis of substituted dihydropyridin-2(1H)-ones, pyridin-2(1H)-ones, and thiopyridin-2(1H)-ones. Chem Commun (Camb) 2015; 51:11658-61. [DOI: 10.1039/c5cc02964c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
KOtBu-mediated annulation of acetonitrile with aldehyde was observed in which cleavage of four C(sp3)–H bonds occurred, and total eight new bonds formed.
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Affiliation(s)
- Abhimanyu Yadav
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Ajay Verma
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Saket Patel
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Amit Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Vandana Rathore
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Meenakshi
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Shailesh Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
| | - Sangit Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India
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