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Kapusterynska A, Bijani C, Paliwoda D, Vendier L, Bourdon V, Imbert N, Cojean S, Loiseau PM, Recchia D, Scoffone VC, Degiacomi G, Akhir A, Saxena D, Chopra S, Lubenets V, Baltas M. Mechanochemical Studies on Coupling of Hydrazines and Hydrazine Amides with Phenolic and Furanyl Aldehydes-Hydrazones with Antileishmanial and Antibacterial Activities. Molecules 2023; 28:5284. [PMID: 37446945 DOI: 10.3390/molecules28135284] [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: 06/07/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Hydrazone compounds represent an important area of research that includes, among others, synthetic approaches and biological studies. A series of 17 hydrazones have been synthesized by mechanochemical means. The fragments chosen were phenolic and furanyl aldehydes coupled with 12 heterocyclic hydrazines or hydrazinamides. All compounds can be obtained quantitatively when operating on a planetary ball mill and a maximum reaction time of 180 min (6 cycles of 30 min each). Complete spectroscopic analyses of hydrazones revealed eight compounds (3-5, 8-11, 16) present in one geometric form, six compounds (1, 2, 13-15) present in two isomeric forms, and three compounds (6, 7, 12) where one rotation is restricted giving rise to two different forms. The single crystal X-ray structure of one of the hydrazones bearing the isoniazid fragment (8) indicates a crystal lattice consisting of two symmetry-independent molecules with different geometries. All compounds obtained were tested for anti-infectious and antibacterial activities. Four compounds (1, 3, 5 and 8) showed good activity against Mycobacterium tuberculosis, and one (7) was very potent against Staphylococcus aureus. Most interesting, this series of compounds displayed very promising antileishmanial activity. Among all, compound 9 exhibited an IC50 value of 0.3 µM on the Leishmania donovani intramacrophage amastigote in vitro model and a good selectivity index, better than miltefosine, making it worth evaluating in vivo.
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Affiliation(s)
- Anna Kapusterynska
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, Inserm ERL 1289, 205 Route de Narbonne, BP 44099, CEDEX 4, 31077 Toulouse, France
| | - Christian Bijani
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, Inserm ERL 1289, 205 Route de Narbonne, BP 44099, CEDEX 4, 31077 Toulouse, France
| | - Damian Paliwoda
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, Inserm ERL 1289, 205 Route de Narbonne, BP 44099, CEDEX 4, 31077 Toulouse, France
| | - Laure Vendier
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, Inserm ERL 1289, 205 Route de Narbonne, BP 44099, CEDEX 4, 31077 Toulouse, France
| | - Valérie Bourdon
- Technological and Expert Platform, Chemistry Institute of Toulouse ICT-UAR2599, University of Toulouse, CNRS, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Nicolas Imbert
- Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, Faculty of Pharmacy, University Paris-Saclay, 91400 Orsay, France
| | - Sandrine Cojean
- Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, Faculty of Pharmacy, University Paris-Saclay, 91400 Orsay, France
| | - Philippe Marie Loiseau
- Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, Faculty of Pharmacy, University Paris-Saclay, 91400 Orsay, France
| | - Deborah Recchia
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, 27100 Pavia, Italy
| | - Viola Camilla Scoffone
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, 27100 Pavia, Italy
| | - Giulia Degiacomi
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, 27100 Pavia, Italy
| | - Abdul Akhir
- Division of Microbiology, CSIR-Central Drug Research Institute, Sector 10, Janakipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Deepanshi Saxena
- Division of Microbiology, CSIR-Central Drug Research Institute, Sector 10, Janakipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Sidharth Chopra
- Division of Microbiology, CSIR-Central Drug Research Institute, Sector 10, Janakipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Vira Lubenets
- Department of Biologically Active Substances, Pharmacy and Biotechnology, Lviv Polytechnic National University, S. Bandery, 12, 79013 Lviv, Ukraine
| | - Michel Baltas
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, Inserm ERL 1289, 205 Route de Narbonne, BP 44099, CEDEX 4, 31077 Toulouse, France
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2
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Panther LA, Guest DP, McGown A, Emerit H, Tareque RK, Jose A, Dadswell CM, Coles SJ, Tizzard GJ, González‐Méndez R, Goodall CAI, Bagley MC, Spencer J, Greenland BW. Solvent‐Free Synthesis of Core‐Functionalised Naphthalene Diimides by Using a Vibratory Ball Mill: Suzuki, Sonogashira and Buchwald–Hartwig Reactions. Chemistry 2022; 28:e202201444. [PMID: 35621283 PMCID: PMC9544761 DOI: 10.1002/chem.202201444] [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] [Received: 05/10/2022] [Indexed: 11/07/2022]
Abstract
Solvent‐free synthesis by using a vibratory ball mill (VBM) offers the chance to access new chemical reactivity, whilst reducing solvent waste and minimising reaction times. Herein, we report the core functionalisation of N,N’‐bis(2‐ethylhexyl)‐2,6‐dibromo‐1,4,5,8‐naphthalenetetracarboxylic acid (Br2‐NDI) by using Suzuki, Sonogashira and Buchwald–Hartwig coupling reactions. The products of these reactions are important building blocks in many areas of organic electronics including organic light‐emitting diodes (OLEDs), organic field‐effect transistors (OFETs) and organic photovoltaic cells (OPVCs). The reactions proceed in as little as 1 h, use commercially available palladium sources (frequently Pd(OAc)2) and are tolerant to air and atmospheric moisture. Furthermore, the real‐world potential of this green VBM protocol is demonstrated by the double Suzuki coupling of a monobromo(NDI) residue to a bis(thiophene) pinacol ester. The resulting dimeric NDI species has been demonstrated to behave as an electron acceptor in functioning OPVCs.
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Affiliation(s)
- Lydia A. Panther
- Department of Chemistry School of Life Sciences University of Sussex Arundel Building 305 Falmer, Brighton BN1 9QJ UK
| | - Daniel P. Guest
- Department of Chemistry School of Life Sciences University of Sussex Arundel Building 305 Falmer, Brighton BN1 9QJ UK
| | - Andrew McGown
- Department of Chemistry School of Life Sciences University of Sussex Arundel Building 305 Falmer, Brighton BN1 9QJ UK
| | - Hugo Emerit
- Department of Chemistry School of Life Sciences University of Sussex Arundel Building 305 Falmer, Brighton BN1 9QJ UK
| | - Raysa Khan Tareque
- Department of Chemistry School of Life Sciences University of Sussex Arundel Building 305 Falmer, Brighton BN1 9QJ UK
| | - Arathy Jose
- Department of Chemistry School of Life Sciences University of Sussex Arundel Building 305 Falmer, Brighton BN1 9QJ UK
| | - Chris M. Dadswell
- Department of Chemistry School of Life Sciences University of Sussex Arundel Building 305 Falmer, Brighton BN1 9QJ UK
| | - Simon J. Coles
- UK National Crystallography Service Chemistry University of Southampton University Road Southampton SO17 1BJ UK
| | - Graham J. Tizzard
- UK National Crystallography Service Chemistry University of Southampton University Road Southampton SO17 1BJ UK
| | - Ramón González‐Méndez
- Department of Chemistry School of Life Sciences University of Sussex Arundel Building 305 Falmer, Brighton BN1 9QJ UK
| | - Charles A. I. Goodall
- Faculty of Engineering & Science FES Engineering & Science School Operations University of Greenwich Old Royal Naval College Park Row London SE10 9LS UK
| | - Mark C. Bagley
- Department of Chemistry School of Life Sciences University of Sussex Arundel Building 305 Falmer, Brighton BN1 9QJ UK
| | - John Spencer
- Department of Chemistry School of Life Sciences University of Sussex Arundel Building 305 Falmer, Brighton BN1 9QJ UK
- Sussex Drug Discovery Centre School of Life Sciences University of Sussex Falmer, Brighton BN1 9QG UK
| | - Barnaby W. Greenland
- Department of Chemistry School of Life Sciences University of Sussex Arundel Building 305 Falmer, Brighton BN1 9QJ UK
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3
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Rawat P, Singh RN, Gautam A, Kumar M, Singh R, Bharati P. Effect of Structural Variation on Spectral, NLO Properties, and Biological Activity of Pyrrole Hydrazones. ACS OMEGA 2022; 7:29571-29586. [PMID: 36061655 PMCID: PMC9434614 DOI: 10.1021/acsomega.2c00951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
This paper describes spectral, non-linear optical (NLO), and biological activity variation of pyrrole hydrazones as a result of structural variation. In order to study structure-property variation, pyrrole hydrazones (3A, 3B, and 3C) were synthesized in both solid and solution phases. The grinding solvent-free method becomes rapid, easy, convenient, useful, sustainable, and eco-friendly green synthesis as compared to the classical solution phase reactions. The structure of pyrrole hydrazones has been elucidated by microanalysis and quantum chemical calculations. The intense emission at λem 521 nm (3A and 3B) and 617 nm (3C) in the visible (green and orange) region with Stokes shifts at 195, 160, and 282 nm reveals that the studied compounds work as good photoluminescent materials. All compounds show strong n-π* and charge transfer (π-π*) transitions in the UV-vis region with high extinction coefficients. In the studied systems (3A, 3B, and 3C), the orbital overlap between σ(NH-O) → σ*(NH-O) is found due to intra-molecular charge transfer. The first hyperpolarizabilities were found to be 48.83 × 10-30 esu for 3B and 63.89 × 10-30 esu for 3C, showing variation with structure. Their high values indicate more suitability for NLO application. Incorporation and/or change in position of electron-withdrawing groups increase the β0 values of 3B and 3C compared to 3A. The β value also increases monotonically as the polarity of the solvents increases. The red shift in N-H and C=O stretching Fourier-transform infrared bonds is due to the formation of dimers. The synthesized 3A, 3B, and 3C show good antimicrobial activity and are predicted to be potential antibacterial and antifungal drugs. The 3B has more molar refractivity (122.16 esu) than 3A and 3C and correlates well with the calculated binding affinity and experimental antimicrobial data.
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Mayurachayakul P, Niamnont N, Chaiseeda K, Chantarasriwong O. Catalyst‐ and Solvent‐Free Synthesis of N‐Acylhydrazones via Solid‐State Melt Reaction. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Nakorn Niamnont
- King Mongkut's University of Technology Thonburi Chemistry 10140 THAILAND
| | | | - Oraphin Chantarasriwong
- King Mongkut's University of Technology Thonburi Chemistry 126 Pracha Uthit Rd.Bang Mod 10140 Thung Khru THAILAND
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Bento O, Luttringer F, El Dine TM, Pétry N, Bantreil X, Lamaty F. Sustainable Mechanosynthesis of Biologically Active Molecules. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101516] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ophélie Bento
- IBMM: Institut des Biomolecules Max Mousseron Chemistry FRANCE
| | | | | | - Nicolas Pétry
- IBMM: Institut des Biomolecules Max Mousseron Chemistry FRANCE
| | - Xavier Bantreil
- IBMM: Institut des Biomolecules Max Mousseron Chemistry FRANCE
| | - Frédéric Lamaty
- IBMM: Institut des Biomolecules Max Mousseron Chemistry 1919 Rte de Mende 34293 Montpellier FRANCE
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6
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Yang X, Wu C, Su W, Yu J. Mechanochemical C−X/C−H Functionalization: An Alternative Strategy Access to Pharmaceuticals. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101440] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xinjie Yang
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Chongyang Wu
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Weike Su
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Jingbo Yu
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
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7
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Neethu K, Sivaselvam S, Theetharappan M, Ranjitha J, Bhuvanesh N, Ponpandian N, Neelakantan M, Kaveri M. In vitro evaluations of biomolecular interactions, antioxidant and anticancer activities of Nickel(II) and Copper(II) complexes with 1:2 coordination of anthracenyl hydrazone ligands. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120419] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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8
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Ying P, Yu J, Su W. Liquid‐Assisted Grinding Mechanochemistry in the Synthesis of Pharmaceuticals. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001245] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ping Ying
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Jingbo Yu
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Weike Su
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic of China
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9
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Pisk J, Đilović I, Hrenar T, Cvijanović D, Pavlović G, Vrdoljak V. Effective methods for the synthesis of hydrazones, quinazolines, and Schiff bases: reaction monitoring using a chemometric approach. RSC Adv 2020; 10:38566-38577. [PMID: 35517547 PMCID: PMC9057299 DOI: 10.1039/d0ra06845d] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 10/04/2020] [Indexed: 11/24/2022] Open
Abstract
Synthesis of hydrazones (1a–4a and 1b–4b), quinazolines (3c·MeOH and 3d·MeOH), and hydrazone-Schiff bases (4c and 4d) is achieved by combining suitable aldehydes (2,3- or 2,4-dihydroxybenzaldehyde) with four hydrazides (isonicotinic, nicotinic, and 2- or 4-aminobenzoic acid hydrazide). A suite of approaches for their preparation is described: solution-based synthesis, mechanosynthesis, and solid-state melt reactions. The mechanochemical approach is generally a better choice for the quinazolines, while the solid-state melt reaction is more efficient for derivatives of (iso)nicotinic based hydrazones. Crystalline amine-functionalised hydrazones 4a and 4b undergo post-synthetic modifications in reactions with 3- or 4-pyridinecarbaldehyde vapours to form hydrazone-Schiff bases 4a-3py, 4b-3py, 4a-4py, and 4b-4py. Mechanochemical and vapour-mediated reactions are followed by ex situ powder X-ray diffraction and IR-ATR methods, respectively. The chemometric analysis of these data using principal component analysis provided an insight into the reaction profiles and reaction times. Azines (5a and 5b), achieved from aldehydes and hydrazine, reversibly change colour in response to temperature changes. The structures of all products are ascertained by a combined use of spectroscopic and X-ray diffraction methods. The cytotoxic and antimicrobial activities of all compounds against selected human cancer cell lines and bacterial strains are evaluated. We compare different routes to prepare hydrazones, quinazolines, and hydrazone-Schiff bases: solution-based, vapor-mediated, mechanochemical, and solid-state melt synthesis.![]()
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Affiliation(s)
- Jana Pisk
- University of Zagreb, Faculty of Science, Department of Chemistry Horvatovac 102a 10000 Zagreb Croatia
| | - Ivica Đilović
- University of Zagreb, Faculty of Science, Department of Chemistry Horvatovac 102a 10000 Zagreb Croatia
| | - Tomica Hrenar
- University of Zagreb, Faculty of Science, Department of Chemistry Horvatovac 102a 10000 Zagreb Croatia
| | - Danijela Cvijanović
- University of Zagreb, School of Medicine, Department of Chemistry and Biochemistry Šalata 3 10000 Zagreb Croatia
| | - Gordana Pavlović
- University of Zagreb, Faculty of Textile Technology, Division of Applied Chemistry Prilaz baruna Filipovića 28a 10000 Zagreb Croatia
| | - Višnja Vrdoljak
- University of Zagreb, Faculty of Science, Department of Chemistry Horvatovac 102a 10000 Zagreb Croatia
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10
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Moussa Z, Al-Mamary M, Al-Juhani S, Ahmed SA. Preparation and biological assessment of some aromatic hydrazones derived from hydrazides of phenolic acids and aromatic aldehydes. Heliyon 2020; 6:e05019. [PMID: 33024857 PMCID: PMC7527643 DOI: 10.1016/j.heliyon.2020.e05019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/03/2020] [Accepted: 09/18/2020] [Indexed: 11/23/2022] Open
Abstract
There has been substantial interest over the past many years in the design of novel chemical compounds containing the azomethine group (-NH-N=CH) and exhibiting various medicinal properties such as antibacterial, antiviral, antifungal, and anti-inflammatory activities. Herein, hydrazones were synthesized via the chemical reaction of substituted aromatic hydrazides with various aromatic aldehydes. The obtained products were confirmed using different physical and spectroscopic techniques, such as m.p., IR, 1H-NMR and 13C-NMR. The present study was designed to synthesize different aromatic hydrazones assembled by various combinations of aromatic hydrazides and aromatic benzaldehydes containing different substituents such as hydroxyl and polyhydroxyl groups as key structural features. Thus, incorporating such moieties and simultaneously creating highly-conjugated systems was expected to create novel species to mimic as much as possible natural phenolics, chalcones and stilbenes. Compounds of aromatic hydrazones synthesized in the present study were tested in vitro for their direct and indirect antioxidant activities using different methods such as DPPH, ABTS and FTC. The antioxidant activities of the new compounds ranged from very weak to very high activity. In addition, the inhibition of tyrosinase and cholinesterase by these compounds was tested. The new compounds containing two or three hydroxyl groups attached to aldehyde rings exhibited significantly greater inhibition effects on tyrosinase or cholinesterase activities in comparison to other compounds of the same series containing only one hydroxyl group.
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Affiliation(s)
- Ziad Moussa
- Department of Chemistry, College of Science, United Arab Emirates University, P.O. Box 15551, Al Ain, United Arab Emirates
| | - Mohammed Al-Mamary
- Chemistry Department, Faculty of Science, Taibah University, PO Box 30002, Code, 14177, Al Madinah Al Almunawarrah, Saudi Arabia
| | - Sultan Al-Juhani
- Chemistry Department, Faculty of Science, Taibah University, PO Box 30002, Code, 14177, Al Madinah Al Almunawarrah, Saudi Arabia
| | - Saleh A. Ahmed
- Chemistry Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, 21955 Makkah, Saudi Arabia
- Department of Chemistry, Faculty of Science, Assiut University, 71516 Assiut, Egypt
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11
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Ali El-Remaily MAEAA, Soliman AMM, Elhady OM. Green Method for the Synthetic Ugi Reaction by Twin Screw Extrusion without a Solvent and Catalyst. ACS OMEGA 2020; 5:6194-6198. [PMID: 32226904 PMCID: PMC7098038 DOI: 10.1021/acsomega.0c00369] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 03/03/2020] [Indexed: 05/04/2023]
Abstract
This study describes the solvent and catalyst-free Ugi reaction by way of twin screw extrusion (TSE). Multicomponent chemical synthesis can be converted into a single process without repeated use of solvents through TSE. High synthetic yields are achieved in short reaction times and produced in solvent-free conditions, which lead to a more environmentally friendly process.
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12
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Balgotra S, Verma PK, Vishwakarma RA, Sawant SD. Catalytic advances in direct functionalizations using arylated hydrazines as the building blocks. CATALYSIS REVIEWS 2019. [DOI: 10.1080/01614940.2019.1702191] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Shilpi Balgotra
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
- Academy of Scientific and Innovative Research, New Delhi, India
| | - Praveen Kumar Verma
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Ram A. Vishwakarma
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Sanghapal D. Sawant
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
- Academy of Scientific and Innovative Research, New Delhi, India
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13
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Chakraborty B. Solvent‐free synthesis and 1,3‐dipolar cycloaddition reactions of
N
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methyl‐C‐(2‐furyl) nitrone in a ball mill and anticancer activities of the new cycloadducts. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3804] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Bhaskar Chakraborty
- Organic Chemistry LaboratorySikkim Government College (NBBDC) Gangtok India
- Academic Visitor, School of ChemistryCardiff University Cardiff UK
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14
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Hussein B, Ikhmais B, Kadirvel M, Magwaza RN, Halbert G, Bryce RA, Stratford IJ, Freeman S. Discovery of potent 4-aminoquinoline hydrazone inhibitors of NRH:quinoneoxidoreductase-2 (NQO2). Eur J Med Chem 2019; 182:111649. [PMID: 31514018 DOI: 10.1016/j.ejmech.2019.111649] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 08/22/2019] [Accepted: 08/26/2019] [Indexed: 01/18/2023]
Abstract
(NRH):quinone oxidoreductase 2 (NQO2) is associated with various processes involved in cancer initiation and progression probably via the production of ROS during quinone metabolism. Thus, there is a need to develop inhibitors of NQO2 that are active in vitro and in vivo. As part of a strategy to achieve this we have used the 4-aminoquinoline backbone as a starting point and synthesized 21 novel analogues. The syntheses utilised p-anisidine with Meldrum's acid and trimethyl orthoacetate or trimethyl orthobenzoate to give the 4-hydrazin-quinoline scaffold, which was derivatised with aldehydes or acid chlorides to give hydrazone or hydrazide analogues, respectively. The hydrazones were the most potent inhibitors of NQO2 in cell free systems, some with low nano-molar IC50 values. Structure-activity analysis highlighted the importance of a small substituent at the 2-position of the 4-aminoquinoline ring, to reduce steric hindrance and improve engagement of the scaffold within the NQO2 active site. Cytotoxicity and NQO2-inhibitory activity in vitro was evaluated using ovarian cancer SKOV-3 and TOV-112 cells (expressing high and low levels of NQO2, respectively). Generally, the hydrazones were more toxic than hydrazide analogues and further, toxicity is unrelated to cellular NQO2 activity. Pharmacological inhibition of NQO2 in cells was measured using the toxicity of CB1954 as a surrogate end-point. Both the hydrazone and hydrazide derivatives are functionally active as inhibitors of NQO2 in the cells, but at different inhibitory potency levels. In particular, 4-((2-(6-methoxy-2-methylquinolin-4-yl)hydrazono)methyl)phenol has the greatest potency of any compound yet evaluated (53 nM), which is 50-fold lower than its toxicity IC50. This compound and some of its analogues could serve as useful pharmacological probes to determine the functional role of NQO2 in cancer development and response to therapy.
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Affiliation(s)
- Buthaina Hussein
- Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine & Health, University of Manchester, Manchester, M13 9PT, UK
| | - Balqis Ikhmais
- Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine & Health, University of Manchester, Manchester, M13 9PT, UK
| | - Manikandan Kadirvel
- Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine & Health, University of Manchester, Manchester, M13 9PT, UK
| | - Rachael N Magwaza
- Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine & Health, University of Manchester, Manchester, M13 9PT, UK
| | - Gavin Halbert
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, G4 0NR, UK
| | - Richard A Bryce
- Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine & Health, University of Manchester, Manchester, M13 9PT, UK
| | - Ian J Stratford
- Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine & Health, University of Manchester, Manchester, M13 9PT, UK.
| | - Sally Freeman
- Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine & Health, University of Manchester, Manchester, M13 9PT, UK.
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15
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Chakraborty B. Mechanochemical synthesis and cycloaddition reactions of fluoro nitrone under solvent‐free conditions and potential antimicrobial activities of the cycloadducts. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3736] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Bhaskar Chakraborty
- Organic Chemistry LaboratorySikkim Government College (NBBDC) Gangtok India
- Academic visitorSchool of Chemistry, Cardiff University Cardiff UK
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16
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Khaldoun K, Safer A, Boukabcha N, Dege N, Ruchaud S, Souab M, Bach S, Chouaih A, Saidi-Besbes S. Synthesis and evaluation of new isatin-aminorhodanine hybrids as PIM1 and CLK1 kinase inhibitors. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.122] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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17
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Sathiyakumar S, Selvam P, Hakkim FL, Srinivasan K, Harrison WTA. Mechanochemical syntheses, crystal structures, and photo-luminescent properties of a new hydrazone and its nickel and cadmium complexes. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1519553] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
| | - Pitchai Selvam
- Department of Chemistry, Thiruvalluvar University, Vellore, India
| | - Faruck Lukmanul Hakkim
- Mathematics and Science Unit, College of Arts and Applied Sciences, Dhofar University, Salalah, Oman
- Research Center, Dhofar University, Salalah, Oman
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18
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Tan D, Loots L, Friščić T. Towards medicinal mechanochemistry: evolution of milling from pharmaceutical solid form screening to the synthesis of active pharmaceutical ingredients (APIs). Chem Commun (Camb) 2018; 52:7760-81. [PMID: 27185190 DOI: 10.1039/c6cc02015a] [Citation(s) in RCA: 197] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This overview highlights the emergent area of mechanochemical reactions for making active pharmaceutical ingredients (APIs), and covers the latest advances in the recently established area of mechanochemical screening and synthesis of pharmaceutical solid forms, specifically polymorphs, cocrystals, salts and salt cocrystals. We also provide an overview of the most recent developments in pharmaceutical uses of mechanochemistry, including real-time reaction monitoring, techniques for polymorph control and approaches for continuous manufacture using twin screw extrusion, and more. Most importantly, we show how the overlap of previously unrelated areas of mechanochemical screening for API solid forms, organic synthesis by milling, and mechanochemical screening for molecular recognition, enables the emergence of a new research discipline in which different aspects of pharmaceutical and medicinal chemistry are addressed through mechanochemistry rather than through conventional solution-based routes. The emergence of such medicinal mechanochemistry is likely to have a strong impact on future pharmaceutical and medicinal chemistry, as it offers not only access to materials and reactivity that are sometimes difficult or even impossible to access from solution, but can also provide a general answer to the demands of the pharmaceutical industry for cleaner, safer and efficient synthetic solutions.
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Affiliation(s)
- Davin Tan
- Department of Chemistry, McGill University, 801 Sherbrooke St. W, H3A 0B8 Montreal, Canada.
| | - Leigh Loots
- Department of Chemistry, McGill University, 801 Sherbrooke St. W, H3A 0B8 Montreal, Canada.
| | - Tomislav Friščić
- Department of Chemistry, McGill University, 801 Sherbrooke St. W, H3A 0B8 Montreal, Canada.
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19
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Martina K, Baricco F, Tagliapietra S, Moran MJ, Cravotto G, Cintas P. Highly efficient nitrobenzene and alkyl/aryl azide reduction in stainless steel jars without catalyst addition. NEW J CHEM 2018. [DOI: 10.1039/c8nj04240c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mechanochemically promoted reduction of nitro and azido derivatives may be successfully performed in stainless steel jars without catalyst addition.
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Affiliation(s)
- Katia Martina
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS, Centre for Nanostructured Interfaces and Surfaces, University of Turin
- 10125 Turin
- Italy
| | - Francesca Baricco
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS, Centre for Nanostructured Interfaces and Surfaces, University of Turin
- 10125 Turin
- Italy
| | - Silvia Tagliapietra
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS, Centre for Nanostructured Interfaces and Surfaces, University of Turin
- 10125 Turin
- Italy
| | - Maria Jesus Moran
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS, Centre for Nanostructured Interfaces and Surfaces, University of Turin
- 10125 Turin
- Italy
| | - Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS, Centre for Nanostructured Interfaces and Surfaces, University of Turin
- 10125 Turin
- Italy
| | - Pedro Cintas
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias-UEX, and IACYS-Unidad de Química Verde y Desarrollo Sostenible
- 06006 Badajoz
- Spain
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20
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Pisk J, Hrenar T, Rubčić M, Pavlović G, Damjanović V, Lovrić J, Cindrić M, Vrdoljak V. Comparative studies on conventional and solvent-free synthesis toward hydrazones: application of PXRD and chemometric data analysis in mechanochemical reaction monitoring. CrystEngComm 2018. [DOI: 10.1039/c7ce02136d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We describe the implementation of chemometric analysis for mechanochemical synthesis monitoring.
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Affiliation(s)
- Jana Pisk
- Faculty of Science
- Department of Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Tomica Hrenar
- Faculty of Science
- Department of Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Mirta Rubčić
- Faculty of Science
- Department of Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Gordana Pavlović
- Faculty of Textile Technology
- Division of Applied Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Vladimir Damjanović
- School of Medicine
- Department of Chemistry and Biochemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Jasna Lovrić
- School of Medicine
- Department of Chemistry and Biochemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Marina Cindrić
- Faculty of Science
- Department of Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Višnja Vrdoljak
- Faculty of Science
- Department of Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
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21
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Oliveira PFM, Guidetti B, Chamayou A, André-Barrès C, Madacki J, Korduláková J, Mori G, Orena BS, Chiarelli LR, Pasca MR, Lherbet C, Carayon C, Massou S, Baron M, Baltas M. Mechanochemical Synthesis and Biological Evaluation of Novel Isoniazid Derivatives with Potent Antitubercular Activity. Molecules 2017; 22:molecules22091457. [PMID: 28862683 PMCID: PMC6151834 DOI: 10.3390/molecules22091457] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 07/19/2017] [Accepted: 07/24/2017] [Indexed: 12/26/2022] Open
Abstract
A series of isoniazid derivatives bearing a phenolic or heteroaromatic coupled frame were obtained by mechanochemical means. Their pH stability and their structural (conformer/isomer) analysis were checked. The activity of prepared derivatives against Mycobacterium tuberculosis cell growth was evaluated. Some compounds such as phenolic hydrazine 1a and almost all heteroaromatic ones, especially 2, 5 and 7, are more active than isoniazid, and their activity against some M. tuberculosis MDR clinical isolates was determined. Compounds 1a and 7 present a selectivity index >1400 evaluated on MRC5 human fibroblast cells. The mechanism of action of selected hydrazones was demonstrated to block mycolic acid synthesis due to InhA inhibition inside the mycobacterial cell.
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Affiliation(s)
- Paulo F M Oliveira
- Department of Process Engineering, Université de Toulouse, Mines-Albi, CNRS UMR 5302, Centre RAPSODEE, Campus Jarlard, 81013 Albi, France.
- Department of Chemistry, Université de Toulouse, UPS, CNRS UMR 5068, LSPCMIB, 118 Route de Narbonne, 31062 Toulouse, France.
- CNRS, Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique, LSPCMIB, UMR-5068, 118 Route de Narbonne, 31062 Toulouse, France.
| | - Brigitte Guidetti
- Department of Chemistry, Université de Toulouse, UPS, CNRS UMR 5068, LSPCMIB, 118 Route de Narbonne, 31062 Toulouse, France.
- CNRS, Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique, LSPCMIB, UMR-5068, 118 Route de Narbonne, 31062 Toulouse, France.
| | - Alain Chamayou
- Department of Process Engineering, Université de Toulouse, Mines-Albi, CNRS UMR 5302, Centre RAPSODEE, Campus Jarlard, 81013 Albi, France.
| | - Christiane André-Barrès
- Department of Chemistry, Université de Toulouse, UPS, CNRS UMR 5068, LSPCMIB, 118 Route de Narbonne, 31062 Toulouse, France.
- CNRS, Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique, LSPCMIB, UMR-5068, 118 Route de Narbonne, 31062 Toulouse, France.
| | - Jan Madacki
- Department of Biochemistry, Comenius University in Bratislava, Faculty of Natural Sciences, Mlynská Dolina, Ilkovičova 6, 84215 Bratislava, Slovakia.
| | - Jana Korduláková
- Department of Biochemistry, Comenius University in Bratislava, Faculty of Natural Sciences, Mlynská Dolina, Ilkovičova 6, 84215 Bratislava, Slovakia.
| | - Giorgia Mori
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia; via Ferrata 1, 27100 Pavia, Italy.
| | - Beatrice Silvia Orena
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia; via Ferrata 1, 27100 Pavia, Italy.
| | - Laurent Roberto Chiarelli
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia; via Ferrata 1, 27100 Pavia, Italy.
| | - Maria Rosalia Pasca
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia; via Ferrata 1, 27100 Pavia, Italy.
| | - Christian Lherbet
- Department of Chemistry, Université de Toulouse, UPS, CNRS UMR 5068, LSPCMIB, 118 Route de Narbonne, 31062 Toulouse, France.
- CNRS, Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique, LSPCMIB, UMR-5068, 118 Route de Narbonne, 31062 Toulouse, France.
| | - Chantal Carayon
- Department of Chemistry, Université de Toulouse, UPS, CNRS UMR 5068, LSPCMIB, 118 Route de Narbonne, 31062 Toulouse, France.
- CNRS, Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique, LSPCMIB, UMR-5068, 118 Route de Narbonne, 31062 Toulouse, France.
| | - Stéphane Massou
- Department of Chemistry, Université de Toulouse, UPS, CNRS UMR 5068, LSPCMIB, 118 Route de Narbonne, 31062 Toulouse, France.
| | - Michel Baron
- Department of Process Engineering, Université de Toulouse, Mines-Albi, CNRS UMR 5302, Centre RAPSODEE, Campus Jarlard, 81013 Albi, France.
| | - Michel Baltas
- Department of Chemistry, Université de Toulouse, UPS, CNRS UMR 5068, LSPCMIB, 118 Route de Narbonne, 31062 Toulouse, France.
- CNRS, Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique, LSPCMIB, UMR-5068, 118 Route de Narbonne, 31062 Toulouse, France.
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22
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Rajput JD, Bagul SD, Bendre RS. Synthesis, biological activities and molecular docking simulation of hydrazone scaffolds of carvacrol, thymol and eugenol. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3007-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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23
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Oliveira PF, Haruta N, Chamayou A, Guidetti B, Baltas M, Tanaka K, Sato T, Baron M. Comprehensive experimental investigation of mechanically induced 1,4-diazines synthesis in solid state. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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Zhang X, Liu L, Li C. High-yielding aqueous synthesis of chloroacetophenones and aroyl chlorohydrins. RSC Adv 2016. [DOI: 10.1039/c6ra00433d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two new reactions for preparing chloroacetophenones and aroyl chlorohydrins promoted by sulfonyl chloride and mediated by water are reported.
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Affiliation(s)
- Xixi Zhang
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300072
- China
| | - Lei Liu
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300072
- China
| | - Chunbao Li
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300072
- China
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25
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Beillard A, Golliard E, Gillet V, Bantreil X, Métro TX, Martinez J, Lamaty F. Expedient Mechanosynthesis of N,N-Dialkyl Imidazoliums and Silver(I)-Carbene Complexes in a Ball-Mill. Chemistry 2015; 21:17614-7. [PMID: 26489706 DOI: 10.1002/chem.201503472] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 09/22/2015] [Indexed: 11/09/2022]
Abstract
The absence of solvent, associated with intensive mechanical agitation, allowed the first mechanosynthesis of high-value silver(I)-carbene complexes and the corresponding N,N-dialkylimidazolium precursors. This procedure gave outstanding results in terms of yield and reaction time, when compared to solution-based conditions previously described in literature, and was generalized to unprecedented compounds. Silver(I)-carbene complexes could either be obtained from N,N-dialkylimidazolium salts or directly from imidazole and alkyl halides in a one-pot two-step procedure without isolating the imidazolium intermediate. Additionally, an efficient one-pot three-step sequence, including imidazole alkylation, silver metalation, and transmetalation is reported.
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Affiliation(s)
- Audrey Beillard
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier cedex 5 (France)
| | - Ethan Golliard
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier cedex 5 (France)
| | - Valentin Gillet
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier cedex 5 (France)
| | - Xavier Bantreil
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier cedex 5 (France).
| | - Thomas-Xavier Métro
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier cedex 5 (France).
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier cedex 5 (France)
| | - Frédéric Lamaty
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier cedex 5 (France).
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26
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Bhutia ZT, P. G, Malik A, Kumar V, Chatterjee A, Roy BG, Banerjee M. In situ mechanochemical synthesis of nitrones followed by 1,3-dipolar cycloaddition: a catalyst-free, “green” route to cis-fused chromano[4,3-c]isoxazoles. RSC Adv 2015. [DOI: 10.1039/c5ra21044e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
An efficient, catalyst free mechanochemical route to cis-fused chromano[4,3-c]isoxazoles has been developed via a simple mortar-pestle grinding method.
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Affiliation(s)
- Zigmee T. Bhutia
- Department of Chemistry
- Birla Institute of Technology and Science
- Goa – 403 726
- India
| | - Geethika P.
- Department of Chemistry
- Birla Institute of Technology and Science
- Goa – 403 726
- India
| | - Anurag Malik
- Department of Chemistry
- Birla Institute of Technology and Science
- Goa – 403 726
- India
| | - Vikash Kumar
- Department of Chemistry
- Birla Institute of Technology and Science
- Goa – 403 726
- India
| | - Amrita Chatterjee
- Department of Chemistry
- Birla Institute of Technology and Science
- Goa – 403 726
- India
| | | | - Mainak Banerjee
- Department of Chemistry
- Birla Institute of Technology and Science
- Goa – 403 726
- India
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27
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Vrdoljak V, Pavlović G, Hrenar T, Rubčić M, Siega P, Dreos R, Cindrić M. Cobalt(iii) complexes with tridentate hydrazone ligands: protonation state and hydrogen bond competition. RSC Adv 2015. [DOI: 10.1039/c5ra22068h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Differently protonated ligands in [Co(HL)(L)] are stabilizedviasupramolecular assembling through O–H⋯O/N and N–H⋯N/O hydrogen bonding. Channels spreading either in each space dimension or predominantly in one direction are formed.
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Affiliation(s)
- Višnja Vrdoljak
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
| | - Gordana Pavlović
- University of Zagreb
- Faculty of Textile Technology
- Division of Applied Chemistry
- 10000 Zagreb
- Croatia
| | - Tomica Hrenar
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
| | - Mirta Rubčić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
| | - Patrizia Siega
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- Trieste
- Italy
| | - Renata Dreos
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- Trieste
- Italy
| | - Marina Cindrić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
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