1
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Pilania M, Vaishya V, Singhal R, Kriplani T. Recent Advances in Transition-Metal-Catalyzed Reactions of N-Tosylhydrazones. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1719930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Abstract
N-Tosylhydrazones are highly versatile precursors for in situ carbene formation and are frequently used in metal-catalyzed cross-coupling reactions. Due to their many applications in organic synthesis, including C–C, C–O, C–N, and C–S bond formation, N-tosylhydrazones have recently received much interest. They can be simply synthesized by reacting an aldehyde or ketone with N-tosylhydrazine to produce a solid N-tosylhydrazone, which is a ‘green’ precursor of diazo compounds. Using a suitable metal catalyst, N-tosylhydrazones show versatile substrate scope for the synthesis of substituted diaminopyrroles, chromenopyrazoles, alkenylpyrazoles, benzofuran thioethers, tetrahydropyridazines, sulfur-containing heterocycles, and benzofurans with potent biological activities and even regioselective N-functionalization reactions. Metal-catalyzed reactions of N-tosylhydrazones for the construction of bioactive heterocycles are still highly in demand. Hence, this review focuses on the recent synthetic application of N-tosylhydrazones influenced by different transition metals with notable features like simple workup procedures, gram-scale synthesis, broad substrate scope, multicomponent processes, cyclization, and carbon–heteroatom bond formation.1 Introduction2 Applications of N-Tosylhydrazones3 Conclusion
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2
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Radolko J, Ehlers P, Langer P. Recent Advances in Transition‐Metal‐Catalyzed Reactions of N‐Tosylhydrazones. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100332] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jan Radolko
- Universität Rostock Institut für Chemie A.-Einstein-Str. 3a 18059 Rostock Germany
| | - Peter Ehlers
- Universität Rostock Institut für Chemie A.-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock Albert-Einstein-Str. 29a 18059 Rostock Germany
| | - Peter Langer
- Universität Rostock Institut für Chemie A.-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock Albert-Einstein-Str. 29a 18059 Rostock Germany
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3
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Zhang K, Provot O, Tran C, Alami M, Hamze A. Copper-catalyzed sulfonylation of N-tosylhydrazones followed by a one-pot C-N bond formation. Org Biomol Chem 2021; 19:5358-5367. [PMID: 34047324 DOI: 10.1039/d1ob00676b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new methodology to synthesize sulfonyl-N-phenylaniline derivatives via the trapping of bromo-sulfone derivatives generated from N-tosylhydrazones (NTHs) with amines is described. The reaction proved successful for a wide range of NTHs and amines and tolerated various functional groups on either coupling partner (35 examples). The mechanism was studied, and we showed that the sulfone formation does not follow a radical pathway.
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Affiliation(s)
- Kena Zhang
- Université Paris-Saclay, BioCIS, Faculté de Pharmacie, CNRS, 92290 Châtenay-Malabry, France.
| | - Olivier Provot
- Université Paris-Saclay, BioCIS, Faculté de Pharmacie, CNRS, 92290 Châtenay-Malabry, France.
| | - Christine Tran
- Université Paris-Saclay, BioCIS, Faculté de Pharmacie, CNRS, 92290 Châtenay-Malabry, France.
| | - Mouad Alami
- Université Paris-Saclay, BioCIS, Faculté de Pharmacie, CNRS, 92290 Châtenay-Malabry, France.
| | - Abdallah Hamze
- Université Paris-Saclay, BioCIS, Faculté de Pharmacie, CNRS, 92290 Châtenay-Malabry, France.
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4
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Lamaa D, Hauguel C, Lin HP, Messe E, Gandon V, Alami M, Hamze A. Sequential One-Pot Synthesis of 3-Arylbenzofurans from N-Tosylhydrazones and Bromophenol Derivatives. J Org Chem 2020; 85:13664-13673. [PMID: 33091298 DOI: 10.1021/acs.joc.0c01835] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A divergent and efficient one-pot sequence allowing direct access to 3-arylbenzofuran derivatives has been developed. The process, involving N-tosylhydrazones and bromophenols, proceeds via a palladium-catalyzed Barluenga-Valdés cross-coupling, followed by an aerobic, copper-catalyzed, radical cyclization to form Csp2-Csp2 and O-Csp2 bonds. 3-Arylated benzofurans bearing various substituents were obtained with good to excellent yields (up to 90%). Mechanistic investigation strongly supports a radical process for the cyclization step.
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Affiliation(s)
- Diana Lamaa
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| | - Camille Hauguel
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| | - Hsin-Ping Lin
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| | - Estelle Messe
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| | - Vincent Gandon
- Institut de Chimie Moleculaire et des Materiaux d'Orsay (ICMMO), CNRS UMR 8182, Université Paris-Saclay, Batiment 420, 91405 Orsay Cedex, France.,Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Institut Polytechnique de Paris, route de Saclay, 91128 Palaiseau Cedex, France
| | - Mouad Alami
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| | - Abdallah Hamze
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
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5
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He J, Zhang J, Dai B, Liu P. Sequentially Formations of Csp
3
‐Csp
2
and Csp
2
‐Csp
2
Bonds by a One‐pot Reaction Involving
N
‐Tosylhydrazone and
p
‐Bromobenzeneboronic Acid. ChemistrySelect 2019. [DOI: 10.1002/slct.201900652] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jing He
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang BingtuanShihezi University Shihezi 832003 P. R. China
| | - Jie Zhang
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang BingtuanShihezi University Shihezi 832003 P. R. China
| | - Bin Dai
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang BingtuanShihezi University Shihezi 832003 P. R. China
| | - Ping Liu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang BingtuanShihezi University Shihezi 832003 P. R. China
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6
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Thakur R, Jaiswal Y, Kumar A. Imidates: an emerging synthon for N-heterocycles. Org Biomol Chem 2019; 17:9829-9843. [DOI: 10.1039/c9ob01899a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights the recent application of imidates as building blocks for the synthesis of saturated and un-saturated N-heterocycles via C–N annulation reactions under acid/base/metal-catalyzed/radical-mediated reaction conditions.
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Affiliation(s)
- Rima Thakur
- Department of Chemistry
- National Institute of Technology
- Patna
- India
| | - Yogesh Jaiswal
- Department of Chemistry
- Indian Institute of Technology Patna
- Bihta
- India
| | - Amit Kumar
- Department of Chemistry
- Indian Institute of Technology Patna
- Bihta
- India
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7
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Naret T, Khelifi I, Provot O, Bignon J, Levaique H, Dubois J, Souce M, Kasselouri A, Deroussent A, Paci A, Varela PF, Gigant B, Alami M, Hamze A. 1,1-Diheterocyclic Ethylenes Derived from Quinaldine and Carbazole as New Tubulin-Polymerization Inhibitors: Synthesis, Metabolism, and Biological Evaluation. J Med Chem 2018; 62:1902-1916. [PMID: 30525602 DOI: 10.1021/acs.jmedchem.8b01386] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We report the synthesis and metabolic and biological evaluation of a series of 17 novel heterocyclic derivatives of isocombretastatin-A4 (iso-CA-4) and their structure-activity relationships. Among these derivatives, the most active compound, 4f, inhibited the growth of a panel of seven cancer cell lines with an IC50 in the low nanomolar range. In addition, 4f showed interesting activity against CA-4-resistant colon-carcinoma cells and multidrug-resistant leukemia cells. It also induced G2/M cell-cycle arrest. Structural data indicated binding of 4f to the colchicine site of tubulin, likely preventing the curved-to-straight tubulin structural changes that occur during microtubule assembly. Also, 4f disrupted the blood-vessel-like assembly formed by human umbilical-vein endothelial cells in vitro, suggesting its function as a vascular-disrupting agent. An in vitro metabolism study of 4f showed its high human-microsomal stability in comparison with that of iso-CA-4. The physicochemical properties of 4f may be conducive to CNS permeability, suggesting that this compound may be a possible candidate for the treatment of glioblastoma.
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Affiliation(s)
- Timothée Naret
- BioCIS, Université Paris-Sud, CNRS, Équipe Labellisée Ligue Contre le Cancer , Université Paris-Saclay , F-92290 Châtenay-Malabry , France
| | - Ilhem Khelifi
- BioCIS, Université Paris-Sud, CNRS, Équipe Labellisée Ligue Contre le Cancer , Université Paris-Saclay , F-92290 Châtenay-Malabry , France
| | - Olivier Provot
- BioCIS, Université Paris-Sud, CNRS, Équipe Labellisée Ligue Contre le Cancer , Université Paris-Saclay , F-92290 Châtenay-Malabry , France
| | - Jérôme Bignon
- CIBI Plateform , Institut de Chimie des Substances Naturelles, UPR 2301, CNRS , F-91198 Gif sur Yvette , France
| | - Hélène Levaique
- CIBI Plateform , Institut de Chimie des Substances Naturelles, UPR 2301, CNRS , F-91198 Gif sur Yvette , France
| | - Joelle Dubois
- Institut de Chimie des Substances Naturelles, UPR 2301, CNRS , F-91198 Gif sur Yvette , France
| | - Martin Souce
- Lip(Sys)2, Chimie Analytique Pharmaceutique (FKA EA4041 Groupe de Chimie Analytique de Paris-Sud), Université Paris-Sud , Université Paris-Saclay , F-92290 Châtenay-Malabry , France
| | - Athena Kasselouri
- Lip(Sys)2, Chimie Analytique Pharmaceutique (FKA EA4041 Groupe de Chimie Analytique de Paris-Sud), Université Paris-Sud , Université Paris-Saclay , F-92290 Châtenay-Malabry , France
| | - Alain Deroussent
- UMR 8203, Laboratoire de Vectorologie et Thérapeutique Anticancéreuses, CNRS, Université Paris-Sud , Université Paris-Saclay, Gustave Roussy , F-94805 Villejuif , France
| | - Angélo Paci
- UMR 8203, Laboratoire de Vectorologie et Thérapeutique Anticancéreuses, CNRS, Université Paris-Sud , Université Paris-Saclay, Gustave Roussy , F-94805 Villejuif , France.,Department of Pharmacology and Drug Analysis, Gustave Roussy Cancer Campus Grand Paris , Université Paris-Sud , F-94805 Villejuif , France
| | - Paloma F Varela
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS , Université Paris-Sud, Université Paris-Saclay , F-91198 Gif-sur-Yvette , France
| | - Benoît Gigant
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS , Université Paris-Sud, Université Paris-Saclay , F-91198 Gif-sur-Yvette , France
| | - Mouad Alami
- BioCIS, Université Paris-Sud, CNRS, Équipe Labellisée Ligue Contre le Cancer , Université Paris-Saclay , F-92290 Châtenay-Malabry , France
| | - Abdallah Hamze
- BioCIS, Université Paris-Sud, CNRS, Équipe Labellisée Ligue Contre le Cancer , Université Paris-Saclay , F-92290 Châtenay-Malabry , France
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8
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Bzeih T, Naret T, Hachem A, Jaber N, Khalaf A, Bignon J, Brion JD, Alami M, Hamze A. A general synthesis of arylindoles and (1-arylvinyl)carbazoles via a one-pot reaction from N-tosylhydrazones and 2-nitro-haloarenes and their potential application to colon cancer. Chem Commun (Camb) 2018; 52:13027-13030. [PMID: 27752657 DOI: 10.1039/c6cc07666a] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A convergent and effective synthesis of 3-aryl-indoles, 2,3-diaryl indoles, and (1-arylvinyl)carbazoles from a one-pot sequence involving the coupling of N-tosylhydrazones with ortho-nitro-haloarenes followed by a cyclization has been developed. Compound 5i exhibits excellent antiproliferative activity in the low nM range against colon cancer cell lines.
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Affiliation(s)
- Tourin Bzeih
- BioCIS, Equipe Labellisée Ligue Contre le Cancer, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France. and Laboratory for Medicinal Chemistry and Natural Products, Lebanese University, Faculty of Sciences (1) and PRASE-EDST, Hadath, Beirut, Lebanon
| | - Timothée Naret
- BioCIS, Equipe Labellisée Ligue Contre le Cancer, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France.
| | - Ali Hachem
- Laboratory for Medicinal Chemistry and Natural Products, Lebanese University, Faculty of Sciences (1) and PRASE-EDST, Hadath, Beirut, Lebanon
| | - Nada Jaber
- Laboratory for Medicinal Chemistry and Natural Products, Lebanese University, Faculty of Sciences (1) and PRASE-EDST, Hadath, Beirut, Lebanon
| | - Ali Khalaf
- Laboratory for Medicinal Chemistry and Natural Products, Lebanese University, Faculty of Sciences (1) and PRASE-EDST, Hadath, Beirut, Lebanon
| | - Jerome Bignon
- Institut de Chimie des Substances Naturelles, UPR 2301, CNRS avenue de la terrasse, F-91198 Gif sur Yvette, France
| | - Jean-Daniel Brion
- BioCIS, Equipe Labellisée Ligue Contre le Cancer, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France.
| | - Mouad Alami
- BioCIS, Equipe Labellisée Ligue Contre le Cancer, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France.
| | - Abdallah Hamze
- BioCIS, Equipe Labellisée Ligue Contre le Cancer, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France.
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9
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Naret T, Bignon J, Bernadat G, Benchekroun M, Levaique H, Lenoir C, Dubois J, Pruvost A, Saller F, Borgel D, Manoury B, Leblais V, Darrigrand R, Apcher S, Brion JD, Schmitt E, Leroux FR, Alami M, Hamze A. A fluorine scan of a tubulin polymerization inhibitor isocombretastatin A-4: Design, synthesis, molecular modelling, and biological evaluation. Eur J Med Chem 2018; 143:473-490. [DOI: 10.1016/j.ejmech.2017.11.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/12/2017] [Accepted: 11/20/2017] [Indexed: 12/12/2022]
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10
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Naret T, Bzeih T, Retailleau P, Alami M, Hamze A. One-Pot Selective Functionalization of Nitrogen-Containing Heterocycles with N
-tosylhydrazones and Amines. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701374] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Timothée Naret
- BioCIS; Equipe Labellisée Ligue Contre Le Cancer; Univ. Paris-Sud, CNRS; University Paris-Saclay Châtenay-Malabry 92290 France
| | - Tourin Bzeih
- BioCIS; Equipe Labellisée Ligue Contre Le Cancer; Univ. Paris-Sud, CNRS; University Paris-Saclay Châtenay-Malabry 92290 France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles; UPR 2301; CNRS Gif-sur-Yvette 91198 France
| | - Mouad Alami
- BioCIS; Equipe Labellisée Ligue Contre Le Cancer; Univ. Paris-Sud, CNRS; University Paris-Saclay Châtenay-Malabry 92290 France
| | - Abdallah Hamze
- BioCIS; Equipe Labellisée Ligue Contre Le Cancer; Univ. Paris-Sud, CNRS; University Paris-Saclay Châtenay-Malabry 92290 France
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11
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Gu N, Wei Y, Liu P, Liu Y, Dai B. Multi-Component One-Pot Reaction of Aromatic Carbonyl Compounds, Tosylhydrazide, and Arylboronic Acids. Molecules 2017; 22:molecules22122168. [PMID: 29215560 PMCID: PMC6149723 DOI: 10.3390/molecules22122168] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 12/04/2017] [Accepted: 12/06/2017] [Indexed: 11/23/2022] Open
Abstract
In this paper, we developed a new method using 4-bromoacetophenone as the starting material, with tosylhydrazide and two arylboronic acids using Barluenga and Suzuki couplings in a four-component one-pot reaction to afford the target product 4-benzyl-1,1′-biphenyls. This system that we have developed enables the use of easily accessible starting materials and can be employed on a wide variety of substrates with good functional group tolerance. In particular, this protocol can be applied to the synthesis of 4-(1-([1,1′-biphenyl]-4-yl)ethyl)pyridine derivatives, a class of potential analogs of CPY17 inhibitors of prostate cancer.
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Affiliation(s)
- Ningning Gu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Yu Wei
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Ping Liu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Yan Liu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Bin Dai
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
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12
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Seddigi ZS, Malik MS, Saraswati AP, Ahmed SA, Babalghith AO, Lamfon HA, Kamal A. Recent advances in combretastatin based derivatives and prodrugs as antimitotic agents. MEDCHEMCOMM 2017; 8:1592-1603. [PMID: 30108870 DOI: 10.1039/c7md00227k] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 07/03/2017] [Indexed: 01/01/2023]
Abstract
The dynamic and crucial role of tubulin in different cellular functions rendered it a promising target in anticancer drug development. Combretastatin A-4 (CA-4), an inhibitor of tubulin polymerization isolated from natural sources, is a lead molecule with significant cytotoxicity against tumour cells. Owing to its non polar nature it exhibits low solubility in natural biological fluids, thereby prompting the development of new CA-4 based derivatives. The modification of this lead molecule was mostly carried out by keeping the crucial cis-orientation of the double bond intact, along with a trimethoxyphenyl aromatic ring, by employing different approaches. The issue of solubility was also addressed by the development of water soluble prodrugs of CA-4. The present review highlights the investigations into the parallel development of both new CA-4 based derivatives and prodrugs in the past few years.
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Affiliation(s)
- Zaki S Seddigi
- Department of Environmental Health , College of Public Health and Health Informatics , Umm Al-Qura University , 21955 Makkah , Saudi Arabia
| | - M Shaheer Malik
- Science and Technology Unit , Umm Al-Qura University , 21955 Makkah , Saudi Arabia
| | - A Prasanth Saraswati
- Department of Medicinal Chemistry and Pharmacology , CSIR - Indian Institute of Chemical Technology , Hyderabad 500 007 , India . ; ; Tel: +91 40 27193157
| | - Saleh A Ahmed
- Department of Chemistry , Faculty of Applied Sciences , Umm Al-Qura University , 21955 Makkah , Saudi Arabia
| | - Ahmed O Babalghith
- Department of Medical Genetics, Faculty of Medicine , Umm Al-Qura University , 21955 Makkah , Saudi Arabia
| | - Hawazen A Lamfon
- Department of Biology , Faculty of Applied Sciences , Umm Al-Qura University , 21955 Makkah , Saudi Arabia
| | - Ahmed Kamal
- Department of Medicinal Chemistry and Pharmacology , CSIR - Indian Institute of Chemical Technology , Hyderabad 500 007 , India . ; ; Tel: +91 40 27193157
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13
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Vargas-Oviedo D, Charris-Molina A, Portilla J. Efficient Access to o
-Phenylendiamines and Their Use in the Synthesis of a 1,2-Dialkyl-5-trifluoromethylbenzimidazoles Library Under Microwave Conditions. ChemistrySelect 2017. [DOI: 10.1002/slct.201700623] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Diana Vargas-Oviedo
- Departamento de Química; Universidad de los Andes; Carrera 1 N° 18A-12 Bogotá Colombia
| | - Andrés Charris-Molina
- Departamento de Química; Universidad de los Andes; Carrera 1 N° 18A-12 Bogotá Colombia
| | - Jaime Portilla
- Departamento de Química; Universidad de los Andes; Carrera 1 N° 18A-12 Bogotá Colombia
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14
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Paraja M, Barroso R, Cabal MP, Valdés C. Synthesis of Highly Substituted Polyenes by Palladium-Catalyzed Cross-Couplings of Sterically Encumbered Alkenyl Bromides andN-Tosylhydrazones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601155] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Miguel Paraja
- Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; c/ Julián Clavería 8 33006 Oviedo Spain
| | - Raquel Barroso
- Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; c/ Julián Clavería 8 33006 Oviedo Spain
| | - M. Paz Cabal
- Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; c/ Julián Clavería 8 33006 Oviedo Spain
| | - Carlos Valdés
- Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; c/ Julián Clavería 8 33006 Oviedo Spain
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15
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Chen Y, Xu F, Sun Z. Synthesis of 1,2-disubstituted benzimidazoles using an aza-Wittig-equivalent process. RSC Adv 2017. [DOI: 10.1039/c7ra09010b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Based on an aza-Wittig-equivalent process, a novel synthetic approach for 1,2-disubstituted benzimidazoles has been successfully designed, which provides mild reaction conditions and excellent yields.
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Affiliation(s)
- Yuan Chen
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
| | - Fanghui Xu
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
| | - Zhihua Sun
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
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16
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Qiu D, Mo F, Zhang Y, Wang J. Recent Advances in Transition-Metal-Catalyzed Cross-Coupling Reactions With N -Tosylhydrazones. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2017. [DOI: 10.1016/bs.adomc.2017.04.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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