1
|
Jaiswal MK, Gupta A, Ansari FJ, Pandey VK, Tiwari VK. Recent Progress on Synthesis of Functionalized 1,5-Disubstituted Triazoles. Curr Org Synth 2024; 21:513-558. [PMID: 38804327 DOI: 10.2174/1570179420666230418123350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 12/13/2022] [Accepted: 01/12/2023] [Indexed: 05/29/2024]
Abstract
Immediately after the invention of 'Click Chemistry' in 2002, the regioselective 1,2,3- triazole scaffolds resulted from respective organic azides and terminal alkynes under Cu(I) catalysis have been well recognized as the functional heterocyclic core at the centre of modern organic chemistry, medicinal chemistry, and material sciences. This CuAAC reaction has several notable features including excellent regioselectivity, high-to-excellent yields, easy to execute, short reaction time, modular in nature, mild condition, readily available starting materials, etc. Moreover, the resulting regioselective triazoles can serve as amide bond isosteres, a privileged functional group in drug discovery and development. More than hundreds of reviews had been devoted to the 'Click Chemistry' in special reference to 1,4-disubstituted triazoles, while only little efforts were made for an opposite regioisomer i.e., 1,5-disubstituted triazole. Herein, we have presented various classical approaches for an expeditious synthesis of a wide range of biologically relevant 1,5- disubstituted 1,2,3-triazole analogues. The syntheses of such a class of diversly functionalized triazoles have emerged as a crucial investigation in the domain of chemistry and biology. This tutorial review covers the literature assessment on the development of various synthetic protocols for the functionalized 1,5-disubstituted triazoles reported during the last 12 years.
Collapse
Affiliation(s)
- Manoj K Jaiswal
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Abhishek Gupta
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Faisal J Ansari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Vinay K Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Vinod K Tiwari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| |
Collapse
|
2
|
Jaiswal MK, Tiwari VK. Growing Impact of Intramolecular Click Chemistry in Organic Synthesis. CHEM REC 2023; 23:e202300167. [PMID: 37522634 DOI: 10.1002/tcr.202300167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 07/11/2023] [Indexed: 08/01/2023]
Abstract
Click Chemistry, a modular, rapid, and one of the most reliable tool for the regioselective 1,2,3-triazole forming [3+2] reaction of organic azide and terimal alkyne is widely explored in various emerging domains of research ranging from chemical biology to catalysis and medicinal chemistry to material science. This regioselective reaction from a diverse range of azido-alkyne scaffolds has been well performed in both intermolecular as well as intramolecular fashions. In comparison to the intermolecular metal (Cu/Ru/Ni) variant of 'Click Chemistry', the intramolecular click tool is little addressed. The intramolecular click chemistry is exemplified as a mordern tool of cyclization which involves metal-catalyzed (CuAAC/RuAAC) cyclization, organo-catalyzed cyclization, and thermal-induced topochemical reaction. Thus, we report herein the recent approaches on intramolecular azide-alkyne cycloaddition 'Click Chemistry' with their wide-spread emerging applications in the developement of a diverse range of molecules including fused-heterocycles, well-defined peptidomemics, and macrocyclic architectures of various notable features.
Collapse
Affiliation(s)
- Manoj K Jaiswal
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Vinod K Tiwari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| |
Collapse
|
3
|
Kiyeleko S, Hocine S, Mautino G, Kuenemann M, Nawrotek A, Miallau L, Vuillard LM, Mirguet O, Kotschy A, Hanessian S. Tartgeting Non-alcoholic Fatty Liver Disease: Design, X-Ray co-crystal structure and synthesis of 'first-in-kind' inhibitors of Serine/Threonine Kinase25. Bioorg Med Chem Lett 2022; 75:128950. [PMID: 36030002 DOI: 10.1016/j.bmcl.2022.128950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/01/2022] [Accepted: 08/19/2022] [Indexed: 11/02/2022]
Abstract
We describe the synthesis of a series of 3-t-butyl 5-aminopyrazole p-substituted arylamides as inhibitors of serine-threonine25 (STK25), an enzyme implicated in the progression of non-alcoholic fatty liver disease (NAFLD). Appending a p-N-pyrrolidinosulphonamide group to the arylamide group led to a 'first-in kind' inhibitor with IC50=228nM. A co-crystal structure with STK 25 revealed productive interactions which were also reproduced using molecular docking. A new series of triazolo dihydro oxazine carboxamides of 3-t-butyl 5-aminopyrazole was not active against STK25.
Collapse
Affiliation(s)
- Scarlett Kiyeleko
- Department of Chemistry, Université de Montréal, Station Centre-Ville, C.P. 6128, Montreal, QC, H3C 3J7, Canada
| | - Sofiane Hocine
- Department of Chemistry, Université de Montréal, Station Centre-Ville, C.P. 6128, Montreal, QC, H3C 3J7, Canada
| | - Giséle Mautino
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy, France
| | - Mélaine Kuenemann
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy, France
| | - Agata Nawrotek
- NovAliX, Laboratoire de Biologie Structurale Servier au Synchrotron Soleil, LBS3 L'Orme des Merisiers 91190 St Aubin FRANCE
| | - Linda Miallau
- NovAliX, Laboratoire de Biologie Structurale Servier au Synchrotron Soleil, LBS3 L'Orme des Merisiers 91190 St Aubin FRANCE
| | | | - Olivier Mirguet
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy, France.
| | - Andras Kotschy
- Servier Research Institute of Medicinal Chemistry, Zahony u. 7., H-1031 Budapest, Hungary
| | - Stephen Hanessian
- Department of Chemistry, Université de Montréal, Station Centre-Ville, C.P. 6128, Montreal, QC, H3C 3J7, Canada.
| |
Collapse
|
4
|
Sitte NA, Ghiringhelli F, Shevchenko GA, Rominger F, Hashmi ASK, Schaub T. Copper‐Catalysed Synthesis of Propargyl Alcohol and Derivatives from Acetylene and other Terminal Alkynes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nikolai A. Sitte
- Catalysis Research Laboratory (CaRLa) Im Neuenheimer Feld 584 D-69120 Heidelberg Germany
| | - Francesca Ghiringhelli
- Catalysis Research Laboratory (CaRLa) Im Neuenheimer Feld 584 D-69120 Heidelberg Germany
| | - Grigory A. Shevchenko
- BASF SE Chemical Synthesis Research Carl-Bosch-Straße 38 D-67056 Ludwigshafen Germany
| | - Frank Rominger
- Institute of Organic Chemistry Heidelberg University Im Neuenheimer Feld 270 D-69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Catalysis Research Laboratory (CaRLa) Im Neuenheimer Feld 584 D-69120 Heidelberg Germany
- Institute of Organic Chemistry Heidelberg University Im Neuenheimer Feld 270 D-69120 Heidelberg Germany
| | - Thomas Schaub
- Catalysis Research Laboratory (CaRLa) Im Neuenheimer Feld 584 D-69120 Heidelberg Germany
- BASF SE Chemical Synthesis Research Carl-Bosch-Straße 38 D-67056 Ludwigshafen Germany
| |
Collapse
|
5
|
Cicetti S, Maestre E, Spanevello RA, Sarotti A. Towards the Synthesis of Highly Hindered Pyrrolidines by Intramolecular AAC Click Reactions: What Can Be Learned from DFT Calculations? European J Org Chem 2022. [DOI: 10.1002/ejoc.202200478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Soledad Cicetti
- IQUIR: Instituto de Quimica Rosario Organic Chemistry Department ARGENTINA
| | - Eugenia Maestre
- IQUIR: Instituto de Quimica Rosario Organic Chemistry Department ARGENTINA
| | | | - Ariel Sarotti
- IQUIR Química Orgánica Suipacha 570 2000 Rosario ARGENTINA
| |
Collapse
|
6
|
Armstrong I, Aldhumani AH, Schopis JL, Fang F, Parsons E, Zeng C, Hossain MI, Bergmeier SC, Hines JV. RNA drug discovery: Conformational restriction enhances specific modulation of the T-box riboswitch function. Bioorg Med Chem 2020; 28:115696. [PMID: 33069065 DOI: 10.1016/j.bmc.2020.115696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 10/23/2022]
Abstract
Antibacterial drug resistance is a global health concern that requires multiple solution approaches including development of new antibacterial compounds acting at novel targets. Targeting regulatory RNA is an emerging area of drug discovery. The T-box riboswitch is a regulatory RNA mechanism that controls gene expression in Gram-positive bacteria and is an exceptional, novel target for antibacterial drug design. We report the design, synthesis and activity of a series of conformationally restricted oxazolidinone-triazole compounds targeting the highly conserved antiterminator RNA element of the T-box riboswitch. Computational binding energies correlated with experimentally-derived Kd values indicating the predictive capabilities for docking studies within this series of compounds. The conformationally restricted compounds specifically inhibited T-box riboswitch function and not overall transcription. Complex disruption, computational docking and RNA binding specificity data indicate that inhibition may result from ligand binding to an allosteric site. These results highlight the importance of both ligand affinity and RNA conformational outcome for targeted RNA drug design.
Collapse
Affiliation(s)
- Ian Armstrong
- Department of Chemistry & Biochemistry, Clippinger Laboratory, Ohio University, Athens, OH 45701, USA
| | - Ali H Aldhumani
- Department of Chemistry & Biochemistry, Clippinger Laboratory, Ohio University, Athens, OH 45701, USA
| | - Jia L Schopis
- Department of Chemistry & Biochemistry, Clippinger Laboratory, Ohio University, Athens, OH 45701, USA
| | - Fang Fang
- Department of Chemistry & Biochemistry, Clippinger Laboratory, Ohio University, Athens, OH 45701, USA
| | - Eric Parsons
- Department of Chemistry & Biochemistry, Clippinger Laboratory, Ohio University, Athens, OH 45701, USA
| | - Chunxi Zeng
- Department of Chemistry & Biochemistry, Clippinger Laboratory, Ohio University, Athens, OH 45701, USA; Molecular & Cellular Biology Program, Ohio University, Athens, OH 45701, USA
| | - Md Ismail Hossain
- Department of Chemistry & Biochemistry, Clippinger Laboratory, Ohio University, Athens, OH 45701, USA
| | - Stephen C Bergmeier
- Department of Chemistry & Biochemistry, Clippinger Laboratory, Ohio University, Athens, OH 45701, USA; Edison Biotechnology Institute, Konneker Laboratories, Ohio University, Athens, OH 45701, USA
| | - Jennifer V Hines
- Department of Chemistry & Biochemistry, Clippinger Laboratory, Ohio University, Athens, OH 45701, USA; Molecular & Cellular Biology Program, Ohio University, Athens, OH 45701, USA.
| |
Collapse
|
7
|
Affiliation(s)
- Manoj Dhameja
- Department of Chemistry School Of Physical & Decision SciencesBabasaheb Bhimrao Ambedkar University (A Central University) Rae barelli Road Lucknow 226025 (U. P.) India
| | - Hariom Kumar
- Department of Chemistry School Of Physical & Decision SciencesBabasaheb Bhimrao Ambedkar University (A Central University) Rae barelli Road Lucknow 226025 (U. P.) India
| | - Preeti Gupta
- Department of Chemistry School Of Physical & Decision SciencesBabasaheb Bhimrao Ambedkar University (A Central University) Rae barelli Road Lucknow 226025 (U. P.) India
| |
Collapse
|
8
|
Danilkina NA, Vasileva AA, Balova IA. A.E.Favorskii’s scientific legacy in modern organic chemistry: prototropic acetylene – allene isomerization and the acetylene zipper reaction. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4902] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Alexei Evgrafovich Favorskii was an outstanding organic chemist who left a great scientific legacy as a result of long time and fruitful work. Most of the theoretically and practically important discoveries of A.E.Favorskii were made in the chemistry of acetylene and its derivatives. Nowadays, the reactions discovered by him, which include acetylene – allene isomerization, the Favorskii and retro-Favorskii reactions, the Favorskii rearrangement and the vinylation reaction, are widely used in industry and in laboratory synthesis. This review summarizes the main scientific achievements of A.E.Favorskii, as well as their development in modern organic chemistry. Much consideration is given to acetylene – allene isomerization as a convenient method for the synthesis of methyl-substituted acetylenes and to the acetylene zipper reaction as a synthetic tool for obtaining terminal acetylenes. The review presents examples of the application of these reactions in modern organic synthesis of complex molecules, including natural compounds and their analogues.
The bibliography includes 266 references.
Collapse
|
9
|
Duan X, Huang X, Fu C, Ma S. Palladium‐Catalyzed Selective Three‐Component Tandem Reaction to Bicyclic 1,2,3‐Triazole Derivatives. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901284] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Xinyu Duan
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou 310027, Zhejiang People's Republic of China
| | - Xin Huang
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou 310027, Zhejiang People's Republic of China
| | - Chunling Fu
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou 310027, Zhejiang People's Republic of China
| | - Shengming Ma
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou 310027, Zhejiang People's Republic of China
| |
Collapse
|
10
|
Gour J, Gatadi S, Akunuri R, Yaddanapudi MV, Nengroo MA, Datta D, Chopra S, Nanduri S. Catalyst-free facile synthesis of polycyclic indole/pyrrole substituted-1,2,3-triazoles. Org Biomol Chem 2019; 17:8153-8165. [PMID: 31460554 DOI: 10.1039/c9ob01560d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general and catalyst-free access to the fused polycyclic N-heterocycles via an intramolecular azide-alkene cascade reaction under mild reaction conditions has been developed. The reaction is applicable to both indole and pyrrole substrates, and a variety of substituents are tolerated. The entire sequence can be carried out in a one-pot operation. This methodology provides a sustainable and efficient access to a variety of novel polycyclic indole/pyrrole substituted-1,2,3-triazoles.
Collapse
Affiliation(s)
- Jitendra Gour
- National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | - Srikanth Gatadi
- National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | - Ravikumar Akunuri
- National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | | | - Mushtaq Ahmad Nengroo
- Biochemistry Division, CSIR-Central Drug Research Institute (CDRI), Lucknow 226031, India
| | - Dipak Datta
- Biochemistry Division, CSIR-Central Drug Research Institute (CDRI), Lucknow 226031, India
| | - Sidharth Chopra
- Division of Microbiology, CSIR-Central Drug Research Institute, Sitapur Road, Sector 10, Janakipuram Extension, Lucknow 226031, Uttar Pradesh, India
| | - Srinivas Nanduri
- National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| |
Collapse
|
11
|
Barlow TMA, Tourwé D, Ballet S. Cyclisation To Form Small, Medium and Large Rings by Use of Catalysed and Uncatalysed Azide-Alkyne Cycloadditions (AACs). European J Org Chem 2017. [DOI: 10.1002/ejoc.201700521] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Thomas M. A. Barlow
- Research Group of Organic Chemistry; Departments of Bioengineering Sciences and Chemistry; Vrije Universiteit Brussel; Pleinlaan 2 1050 Brussels Belgium
| | - Dirk Tourwé
- Research Group of Organic Chemistry; Departments of Bioengineering Sciences and Chemistry; Vrije Universiteit Brussel; Pleinlaan 2 1050 Brussels Belgium
| | - Steven Ballet
- Research Group of Organic Chemistry; Departments of Bioengineering Sciences and Chemistry; Vrije Universiteit Brussel; Pleinlaan 2 1050 Brussels Belgium
| |
Collapse
|
12
|
Johansson JR, Beke-Somfai T, Said Stålsmeden A, Kann N. Ruthenium-Catalyzed Azide Alkyne Cycloaddition Reaction: Scope, Mechanism, and Applications. Chem Rev 2016; 116:14726-14768. [DOI: 10.1021/acs.chemrev.6b00466] [Citation(s) in RCA: 223] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Johan R. Johansson
- Cardiovascular
and Metabolic Diseases, Innovative Medicines and Early Development
Biotech Unit, AstraZeneca, Pepparedsleden 1, SE-43183 Mölndal, Sweden
| | - Tamás Beke-Somfai
- Research
Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok
krt. 2, H-1117 Budapest, Hungary
| | - Anna Said Stålsmeden
- Chemistry
and Biochemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Göteborg, Sweden
| | - Nina Kann
- Chemistry
and Biochemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Göteborg, Sweden
| |
Collapse
|
13
|
C. Bergmeier S, Fang F, Maciagiewicz I. A Synthesis of Hexahydro-H-oxazolo[3,4-a]pyrazin-3-ones from Fused Aziridines. HETEROCYCLES 2016. [DOI: 10.3987/com-15-s(t)24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
14
|
Tao S, Hu Q, Li H, Ma S, Chen Y. Synthesis of [1,2,3]Triazolo[5,1-a]isoquinoline Derivatives via a Selective Cascade Cyclization Sequence of 1,2-bis(Phenylethynyl)benzene Derivatives. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1020952] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Shipeng Tao
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Qinquan Hu
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Huan Li
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Shan Ma
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Yunfeng Chen
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan, China
| |
Collapse
|
15
|
Kundu SK, Mitra K, Majee A. Copper(i) iodide catalyzed synthesis of primary propargylic alcohols from terminal alkyne. RSC Adv 2015. [DOI: 10.1039/c4ra12719f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of primary propargylic alcohols from terminal alkyne and paraformaldehyde catalyzed by copper(i) iodide, without using any moisture sensitive reagents.
Collapse
Affiliation(s)
| | - Kanchan Mitra
- Department of Chemistry
- Jhargram Raj College
- Jhargram
- India
| | - Adinath Majee
- Department of Chemistry
- Visva-Bharati (A Central University)
- Santiniketan-731235
- India
| |
Collapse
|
16
|
Omar MA, Frey W, Conrad J, Beifuss U. Transition-Metal-Free Synthesis of Imidazo[2,1-b]thiazoles and Thiazolo[3,2-a]benzimidazoles via an S-Propargylation/5-exo-dig Cyclization/Isomerization Sequence Using Propargyl Tosylates as Substrates. J Org Chem 2014; 79:10367-77. [DOI: 10.1021/jo501980w] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Mohamed A. Omar
- Bioorganische
Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße
30, D-70599 Stuttgart, Germany
| | - Wolfgang Frey
- Institut
für Organische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| | - Jürgen Conrad
- Bioorganische
Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße
30, D-70599 Stuttgart, Germany
| | - Uwe Beifuss
- Bioorganische
Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße
30, D-70599 Stuttgart, Germany
| |
Collapse
|
17
|
Maurya RA, Adiyala PR, Chandrasekhar D, Reddy CN, Kapure JS, Kamal A. Rapid access to novel 1,2,3-triazolo-heterocyclic scaffolds via tandem Knoevenagel condensation/azide-alkyne 1,3-dipolar cycloaddition reaction in one pot. ACS COMBINATORIAL SCIENCE 2014; 16:466-77. [PMID: 24945583 DOI: 10.1021/co500070e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An operationally simple, one-pot, two-step cascade method has been developed to afford biologically important fused 1,2,3-triazolo-heterocyclic scaffolds from 2-alkynyl aryl(heteroaryl) aldehydes and phenacyl azides. This unique atom economical transformation engages four reactive centers (aldehyde, alkyne, active methylene, and azide) under metal-free catalysis.
Collapse
Affiliation(s)
- Ram Awatar Maurya
- Division of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Praveen Reddy Adiyala
- Division of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - D. Chandrasekhar
- Division of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Chada Narsimha Reddy
- Division of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Jeevak Sopanrao Kapure
- Division of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Ahmed Kamal
- Division of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| |
Collapse
|
18
|
Bhattacharya D, Ghorai A, Pal U, Chandra Maiti N, Chattopadhyay P. Stereoselective domino azidation and [3 + 2] cycloaddition: a facile route to chiral heterocyclic scaffolds from carbohydrate derived synthons. RSC Adv 2014. [DOI: 10.1039/c3ra45363d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
19
|
Lee OS, Kim KH, Kim J, Kwon K, Ok T, Ihee H, Lee HY, Sohn JH. Correlation between functionality preference of Ru carbenes and exo/endo product selectivity for clarifying the mechanism of ring-closing enyne metathesis. J Org Chem 2013; 78:8242-9. [PMID: 23944769 DOI: 10.1021/jo401420f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Functionality preferences of metathesis Ru carbenes to various alkenes and alkynes with electronic and steric diversity were determined by using time-dependent fluorescence quenching. The functionality preferences depend not only on the properties of multiple bonds but also on the ligands on Ru. There was a good correlation between functionality preference and the metathesis reaction outcome. The correlation between functionality preference and exo/endo product ratio offers a solution to resolve the mechanistic issue related with alkene- vs alkyne-initiated pathway in ring-closing enyne metathesis. The correlation indicates the preference is likely to dictate the reaction pathway and eventually the outcome of the reaction. The Ru catalyst favoring alkyne over alkene provides more endo product, indicating that the reaction mainly initiates at the alkyne. By changing the substitution pattern, the preference can be reversed to give an exclusive exo product.
Collapse
Affiliation(s)
- Ok Suk Lee
- Department of Chemistry, College of Natural Sciences, Chungnam National University, Daejeon 305-764, Korea
| | | | | | | | | | | | | | | |
Collapse
|
20
|
Three-Membered Ring Systems. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/b978-0-08-099406-2.00002-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
21
|
Chen Y, Zhou S, Ma S, Liu W, Pan Z, Shi X. A facile synthesis of 5-amino-[1,2,3]triazolo[5,1-a]isoquinoline derivatives through copper-catalyzed cascade reactions. Org Biomol Chem 2013; 11:8171-4. [DOI: 10.1039/c3ob41774c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|