1
|
Singh R, Kumar R, Kaur M, Patil MT, Sahoo SC, Salunke DB. Groebke–Blackburn–Bienaymé
multicomponent reaction coupled with unconventional
Pictet–Spengler
cyclization for the synthesis of imidazo[4,5‐
b
]pyridine fused polycyclic heterocycles. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rahul Singh
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh India
| | - Ravinder Kumar
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh India
| | - Manpreet Kaur
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh India
| | - Madhuri T. Patil
- Department of Chemistry Mehr Chand Mahajan DAV College for Women Chandigarh India
| | - Subash Chandra Sahoo
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh India
| | - Deepak B. Salunke
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh India
- National Interdisciplinary Centre of Vaccine, Immunotherapeutics and Antimicrobials Panjab University Chandigarh India
| |
Collapse
|
2
|
Nayebzadeh B, Amiri K, Khosravi H, Mirzaei S, Rominger F, Dar'in D, Krasavin M, Bijanzadeh HR, Balalaie S. Synthesis of Spiro[chromene-imidazo[1,2- a]pyridin]-3'-imines via 6- exo-dig Cyclization Reaction. J Org Chem 2021; 86:13693-13701. [PMID: 34529434 DOI: 10.1021/acs.joc.1c01789] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A transition-metal-free postmodification of the Groebke-Blackburn-Bienaymé (GBB) reaction for the synthesis of spiro[chromene-imidazo[1,2-a]pyridin]-3'-imine was discovered. The unusual transformation represents the first example of activation and the reaction of the imidazole carbon atom. In this postcondensational modification, KOt-Bu acts as a base, which, after the isomerization of an alkyne moiety to allene, causes the next unique nucleophilic reaction of the imidazole carbon atom that results in spirocyclic structures. The proposed reaction mechanism was confirmed based on the DFT calculations.
Collapse
Affiliation(s)
- Behrouz Nayebzadeh
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 19697, Iran
| | - Kamran Amiri
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 19697, Iran
| | - Hormoz Khosravi
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 19697, Iran
| | - Saber Mirzaei
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Frank Rominger
- Organisch-Chemisches Institut der Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Dmitry Dar'in
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| | - Mikhail Krasavin
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| | - Hamid Reza Bijanzadeh
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Tehran 19697, Iran
| | - Saeed Balalaie
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 19697, Iran.,Medical Biology Research Center, Kermanshah University of Medical Sciences Kermanshah, Kermanshah 67155, Iran
| |
Collapse
|
3
|
Boltjes A, Dömling A. The Groebke-Blackburn-Bienaymé Reaction. EUROPEAN JOURNAL OF CHEMISTRY (PRINT) 2019; 2019:7007-7049. [PMID: 34012704 PMCID: PMC8130801 DOI: 10.1002/ejoc.201901124] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/23/2022]
Abstract
Imidazo[1,2-a]pyridine is a well-known scaffold in many marketed drugs, such as Zolpidem, Minodronic acid, Miroprofen and DS-1 and it also serves as a broadly applied pharmacophore in drug discovery. The scaffold revoked a wave of interest when Groebke, Blackburn and Bienaymé reported independently a new three component reaction resulting in compounds with the imidazo[1,2-a]-heterocycles as a core structure. During the course of two decades the Groebke Blackburn Bienaymé (GBB-3CR) reaction has emerged as a very important multicomponent reaction (MCR), resulting in over a hundred patents and a great number of publications in various fields of interest. Now two compounds derived from GBB-3CR chemistry received FDA approval. To celebrate the first 20 years of GBB-chemistry, we present an overview of the chemistry of the GBB-3CR, including an analysis of each of the three starting material classes, solvents and catalysts. Additionally, a list of patents and their applications and a more in-depth summary of the biological targets that were addressed, including structural biology analysis, is given.
Collapse
Affiliation(s)
- André Boltjes
- Department of Drug Design, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, Groningen, The Netherlands
| | - Alexander Dömling
- Department of Drug Design, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, Groningen, The Netherlands
| |
Collapse
|
4
|
Pedrola M, Jorba M, Jardas E, Jardi F, Ghashghaei O, Viñas M, Lavilla R. Multicomponent Reactions Upon the Known Drug Trimethoprim as a Source of Novel Antimicrobial Agents. Front Chem 2019; 7:475. [PMID: 31334221 PMCID: PMC6621506 DOI: 10.3389/fchem.2019.00475] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 06/20/2019] [Indexed: 01/02/2023] Open
Abstract
Novel antibiotic compounds have been prepared through a selective multicomponent reaction upon the known drug Trimethoprim. The Groebke-Blackburn-Bienaymé reaction involving this α-aminoazine, with a range of aldehydes and isocyanides afforded the desired adducts in one-step. The analogs display meaningful structural features of the initial drug together with relevant modifications at several points, keeping antibiotic potency and showing satisfactory antimicrobial profile (good activity levels and reduced growth rates), especially against methicillin-resistant Staphylococcus aureus. The new products may open new possibilities to fight bacterial infections.
Collapse
Affiliation(s)
- Marina Pedrola
- Laboratory of Medicinal Chemistry, Faculty of Pharmacy and Food Sciences and Institute of Biomedicine (IBUB), University of Barcelona, Barcelona, Spain
| | - Marta Jorba
- Laboratory of Molecular Microbiology & Antimicrobials, Department of Pathology & Experimental Therapeutics, Medical School, Hospitalet de Llobregat, University of Barcelona, Barcelona, Spain.,Bellvitge Institute for Biomedical Research (IDIBELL), Barcelona, Spain
| | - Eda Jardas
- Laboratory of Medicinal Chemistry, Faculty of Pharmacy and Food Sciences and Institute of Biomedicine (IBUB), University of Barcelona, Barcelona, Spain
| | - Ferran Jardi
- Laboratory of Medicinal Chemistry, Faculty of Pharmacy and Food Sciences and Institute of Biomedicine (IBUB), University of Barcelona, Barcelona, Spain
| | - Ouldouz Ghashghaei
- Laboratory of Medicinal Chemistry, Faculty of Pharmacy and Food Sciences and Institute of Biomedicine (IBUB), University of Barcelona, Barcelona, Spain
| | - Miguel Viñas
- Laboratory of Molecular Microbiology & Antimicrobials, Department of Pathology & Experimental Therapeutics, Medical School, Hospitalet de Llobregat, University of Barcelona, Barcelona, Spain.,Bellvitge Institute for Biomedical Research (IDIBELL), Barcelona, Spain
| | - Rodolfo Lavilla
- Laboratory of Medicinal Chemistry, Faculty of Pharmacy and Food Sciences and Institute of Biomedicine (IBUB), University of Barcelona, Barcelona, Spain
| |
Collapse
|
5
|
Kurhade S, Diekstra E, Sutanto F, Kurpiewska K, Kalinowska-Tłuścik J, Dömling A. Multicomponent Reaction Based Synthesis of 1-Tetrazolylimidazo[1,5- a]pyridines. Org Lett 2018; 20:3871-3874. [PMID: 29943994 PMCID: PMC6038091 DOI: 10.1021/acs.orglett.8b01452] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
A series
of unprecedented tetrazole-linked imidazo[1,5-a]pyridines
are synthesized from simple and readily available
building blocks. The reaction sequence involves an azido-Ugi-deprotection
reaction followed by an acetic anhydride-mediated N-acylation–cyclization process to afford the target heterocycle.
Furthermore, the scope of the methodology was extended to diverse
R3-substitutions by employing commercial anhydrides, acid
chlorides, and acids as an acyl component. The scope for the postmodification
reactions are explored and the usefulness of the synthesis is exemplified
by an improved three-step synthesis of a guanylate cyclase stimulator.
Collapse
Affiliation(s)
- Santosh Kurhade
- Department of Drug Design , University of Groningen , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
| | - Elmar Diekstra
- Department of Drug Design , University of Groningen , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
| | - Fandi Sutanto
- Department of Drug Design , University of Groningen , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
| | - Katarzyna Kurpiewska
- Jagiellonian University , Faculty of Chemistry , Gronostajowa 2 , 30-387 Krakow , Poland
| | | | - Alexander Dömling
- Department of Drug Design , University of Groningen , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
| |
Collapse
|
6
|
Giustiniano M, Basso A, Mercalli V, Massarotti A, Novellino E, Tron GC, Zhu J. To each his own: isonitriles for all flavors. Functionalized isocyanides as valuable tools in organic synthesis. Chem Soc Rev 2018; 46:1295-1357. [PMID: 27983738 DOI: 10.1039/c6cs00444j] [Citation(s) in RCA: 288] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The term functionalized isocyanides refers to all those isocyanides in which a neighbouring functional group can finely tune the reactivity of the isocyano group or can be exploited in post-functionalization processes. In this manuscript, we have reviewed all the isocyanides in which the pendant functional group causes either deviation from or reinforces the normal reactivity of the isocyano group and categorized them to highlight their common features and differences. An analysis of their synthetic potential and the possible unexplored directions for future research studies is also addressed.
Collapse
Affiliation(s)
- Mariateresa Giustiniano
- Dipartimento di Farmacia, Università degli Studi di Napoli "Federico II", via D. Montesano 49, 80131 Napoli, Italy
| | - Andrea Basso
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, via Dodecaneso 31, 16143 Genova, Italy
| | - Valentina Mercalli
- Dipartimento di Scienze del Farmaco, Università degli Studi del Piemonte Orientale "A. Avogadro", largo Donegani 2, 28100 Novara, Italy.
| | - Alberto Massarotti
- Dipartimento di Scienze del Farmaco, Università degli Studi del Piemonte Orientale "A. Avogadro", largo Donegani 2, 28100 Novara, Italy.
| | - Ettore Novellino
- Dipartimento di Farmacia, Università degli Studi di Napoli "Federico II", via D. Montesano 49, 80131 Napoli, Italy
| | - Gian Cesare Tron
- Dipartimento di Scienze del Farmaco, Università degli Studi del Piemonte Orientale "A. Avogadro", largo Donegani 2, 28100 Novara, Italy.
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland.
| |
Collapse
|
7
|
The Chemistry of Sulfur-Containing [5,5]-Fused Ring Systems With a Bridgehead Nitrogen. ADVANCES IN HETEROCYCLIC CHEMISTRY 2018. [DOI: 10.1016/bs.aihch.2017.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
8
|
Cioc RC, Preschel HD, van der Heijden G, Ruijter E, Orru RVA. Trityl Isocyanide as a Mechanistic Probe in Multicomponent Chemistry: Walking the Line between Ugi- and Strecker-type Reactions. Chemistry 2016; 22:7837-42. [DOI: 10.1002/chem.201600285] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Răzvan C. Cioc
- Department of Chemistry & Pharmaceutical Sciences and; Amsterdam Institute for Molecules Medicines and Systems (AIMMS); Vrije Universiteit Amsterdam; De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Hans D. Preschel
- Department of Chemistry & Pharmaceutical Sciences and; Amsterdam Institute for Molecules Medicines and Systems (AIMMS); Vrije Universiteit Amsterdam; De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Gydo van der Heijden
- Department of Chemistry & Pharmaceutical Sciences and; Amsterdam Institute for Molecules Medicines and Systems (AIMMS); Vrije Universiteit Amsterdam; De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Eelco Ruijter
- Department of Chemistry & Pharmaceutical Sciences and; Amsterdam Institute for Molecules Medicines and Systems (AIMMS); Vrije Universiteit Amsterdam; De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Romano V. A. Orru
- Department of Chemistry & Pharmaceutical Sciences and; Amsterdam Institute for Molecules Medicines and Systems (AIMMS); Vrije Universiteit Amsterdam; De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| |
Collapse
|
9
|
Copin C, Buron F, Routier S. Palladium-Catalyzed Amination of C-5 Bromoimidazo[2,1-b][1,3,4]thiadiazoles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600145] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
10
|
Multicomponent synthesis of novel coelenterazine derivatives substituted at the C-3 position. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
11
|
Kim YS, Kwak SH, Gong YD. Application of Thio-Ugi Adducts for the Preparation of Benzo[b]thiophene and S-Heterocycle Library via Copper Catalyzed Intramolecular C-S Bond Formation. ACS COMBINATORIAL SCIENCE 2015; 17:365-73. [PMID: 25961783 DOI: 10.1021/acscombsci.5b00034] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fused heterocycles, such as benzo[b]thiophene, thiochroman, benzo[b][1,4]thiazine, and 1,4-benzothiazepine were generated from thio-Ugi adducts containing a thioamide group through copper-catalyzed intramolecular C-S bond formation under microwave irradiation.
Collapse
Affiliation(s)
- Yong-Sang Kim
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| | - Se Hun Kwak
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| | - Young-Dae Gong
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| |
Collapse
|
12
|
Synthesis of imidazo[1,2-a]pyridin-chromones by a MW assisted Groebke–Blackburn–Bienaymé process. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.047] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
13
|
Goel R, Luxami V, Paul K. Recent advances in development of imidazo[1,2-a]pyrazines: synthesis, reactivity and their biological applications. Org Biomol Chem 2015; 13:3525-55. [DOI: 10.1039/c4ob01380h] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The synthesis, reactivity and multifarious biological activities at the different positions of imidazo[1,2-a]pyrazines are concisely discussed in this review.
Collapse
Affiliation(s)
- Richa Goel
- School of Chemistry and Biochemistry
- Thapar University
- Patiala 147004
- India
| | - Vijay Luxami
- School of Chemistry and Biochemistry
- Thapar University
- Patiala 147004
- India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry
- Thapar University
- Patiala 147004
- India
| |
Collapse
|
14
|
Devi N, Rawal RK, Singh V. Diversity-oriented synthesis of fused-imidazole derivatives via Groebke–Blackburn–Bienayme reaction: a review. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.10.032] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
15
|
Goel R, Luxami V, Paul K. Synthetic approaches and functionalizations of imidazo[1,2-a]pyrimidines: an overview of the decade. RSC Adv 2015. [DOI: 10.1039/c5ra14795f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review gives an overview to the synthesis of the imidazo[1,2-a]pyrimidines on the basis of multicomponent reactions, condensation reactions, intramolecular cyclizations etc. along with its reactivity at 3-position.
Collapse
Affiliation(s)
- Richa Goel
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147004
- India
| | - Vijay Luxami
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147004
- India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147004
- India
| |
Collapse
|
16
|
Demjén A, Gyuris M, Wölfling J, Puskás LG, Kanizsai I. Facile synthesis of 1H-imidazo[1,2-b]pyrazoles via a sequential one-pot synthetic approach. Beilstein J Org Chem 2014; 10:2338-44. [PMID: 25383103 PMCID: PMC4222397 DOI: 10.3762/bjoc.10.243] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Accepted: 09/18/2014] [Indexed: 11/23/2022] Open
Abstract
5-Aminopyrazole-4-carbonitrile and ethyl 5-aminopyrazole-4-carboxylate, as potential trifunctional building blocks are introduced in a facile, chemo- and regioselective multicomponent assembly of imidazo[1,2-b]pyrazoles via the Groebke–Blackburn–Bienaymé reaction (GBB reaction). Besides the synthetic elaboration of a green-compatible isocyanide-based access in three-component mode, we describe an operationally simple, one-pot two-step GBB protocol for the rapid construction of a 46 membered imidazo[1,2-b]pyrazole library with yields up to 83%.
Collapse
Affiliation(s)
- András Demjén
- AVIDIN Ltd., Alsó Kikötő sor 11, Szeged, H-6726, Hungary ; Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720, Szeged, Hungary
| | - Márió Gyuris
- AVIDIN Ltd., Alsó Kikötő sor 11, Szeged, H-6726, Hungary
| | - János Wölfling
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720, Szeged, Hungary
| | - László G Puskás
- AVIDIN Ltd., Alsó Kikötő sor 11, Szeged, H-6726, Hungary ; AVICOR Ltd., Alsó Kikötő sor 11, Szeged, H-6726, Hungary
| | - Iván Kanizsai
- AVIDIN Ltd., Alsó Kikötő sor 11, Szeged, H-6726, Hungary
| |
Collapse
|
17
|
Rozentsveig IB, Serykh VY, Chernysheva GN, Kondrashov EV, Fedotova AI, Ushakov IA, Tretyakov EV, Romanenko GV. Two-Step Regioselective Synthesis of 3-(Sulfonylamino)imidazo[1,2- a]pyrimidines from 2-Aminopyrimidines and N-(2,2-Dichloro-2-phenylethylidene)arensulfonamides. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402695] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
18
|
Kreye O, Trefzger C, Sehlinger A, Meier MAR. Multicomponent Reactions with a Convertible Isocyanide: Efficient and Versatile Grafting of ADMET-Derived Polymers. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400187] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Oliver Kreye
- Karlsruhe Institute of Technology, Institute of Organic Chemistry; Laboratory of Applied Chemistry; Fritz-Haber-Weg 6, Building 30.42 D-76131 Karlsruhe Germany
| | - Carsten Trefzger
- Karlsruhe Institute of Technology, Institute of Organic Chemistry; Laboratory of Applied Chemistry; Fritz-Haber-Weg 6, Building 30.42 D-76131 Karlsruhe Germany
| | - Ansgar Sehlinger
- Karlsruhe Institute of Technology, Institute of Organic Chemistry; Laboratory of Applied Chemistry; Fritz-Haber-Weg 6, Building 30.42 D-76131 Karlsruhe Germany
| | - Michael A. R. Meier
- Karlsruhe Institute of Technology, Institute of Organic Chemistry; Laboratory of Applied Chemistry; Fritz-Haber-Weg 6, Building 30.42 D-76131 Karlsruhe Germany
| |
Collapse
|
19
|
Ghorbani-Vaghei R, Amiri M. N,N,N′,N′-Tetrabromobenzene-1,3-disulfonamide and Poly(N-bromo-N-ethylbenzene-1,3-disulfonamide) as Mild and Efficient Catalysts for Solvent-free Synthesis ofN-Cyclohexyl-2-aryl(alkyl)-imidazo[1,2-a]pyridin-3-amine Derivatives. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1875] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ramin Ghorbani-Vaghei
- Department of Organic Chemistry, Faculty of Chemistry; Bu-Ali-Sina University; 65174 Hamedan Iran
| | - Mostafa Amiri
- Department of Organic Chemistry, Faculty of Chemistry; Bu-Ali-Sina University; 65174 Hamedan Iran
| |
Collapse
|
20
|
Rahmati A, Eskandari-Vashareh M, Alizadeh-Kouzehrash M. Synthesis of 3-(benzylideneamino)-2-phenyl-5H-imidazo[1,2-b]pyrazole-7-carbonitriles via a four-component condensation reaction. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.03.103] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
21
|
Lee CH, Hsu WS, Chen CH, Sun CM. A Telescoping Synthesis of Chimeric Polyheterocycles through a Piperidine-Mediated Multicomponent Reaction. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201645] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
22
|
Neo AG, Bornadiego A, Díaz J, Marcaccini S, Marcos CF. Elusive 2-aminofuran Diels–Alder substrates for a straightforward synthesis of polysubstituted anilines. Org Biomol Chem 2013; 11:6546-55. [DOI: 10.1039/c3ob41411f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
23
|
Pellegatti L, Vedrenne E, Hiebel MA, Buron F, Massip S, Leger JM, Jarry C, Routier S. Synthesis of [1,2,4,5]tetrazino[6′,1′:2,3]imidazo[4,5-c]isoquinolin-5-ones by microwave-assisted three-component reaction. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.07.129] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
24
|
Guchhait SK, Madaan C. Towards molecular diversity: dealkylation of tert-butyl amine in Ugi-type multicomponent reaction product establishes tert-butyl isocyanide as a useful convertible isonitrile. Org Biomol Chem 2010; 8:3631-4. [DOI: 10.1039/c0ob00022a] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
25
|
Krasavin M, Shkavrov S, Parchinsky V, Bukhryakov K. Imidazo[1,2-a]quinoxalines Accessed via Two Sequential Isocyanide-Based Multicomponent Reactions. J Org Chem 2009; 74:2627-9. [DOI: 10.1021/jo900050k] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mikhail Krasavin
- Chemical Diversity Research Institute, 2a Rabochaya Street, Khimki, Moscow Region, 141400, Russia
| | - Sergey Shkavrov
- Chemical Diversity Research Institute, 2a Rabochaya Street, Khimki, Moscow Region, 141400, Russia
| | - Vladislav Parchinsky
- Chemical Diversity Research Institute, 2a Rabochaya Street, Khimki, Moscow Region, 141400, Russia
| | - Konstantin Bukhryakov
- Chemical Diversity Research Institute, 2a Rabochaya Street, Khimki, Moscow Region, 141400, Russia
| |
Collapse
|