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Hernández-Fernández J, Tiempos-Flores N, Ordóñez M, Rivas-Galindo V, López-Cortina S, García-Alvarez KG, Hernández-Fernández E. Microwave-Assisted Hydrolysis of Ethyl Azolylacetates and Cinnamates with K 2CO 3: Synthesis of Potassium Carboxylates. ACS OMEGA 2024; 9:40783-40789. [PMID: 39371973 PMCID: PMC11447747 DOI: 10.1021/acsomega.4c05596] [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: 06/14/2024] [Revised: 08/30/2024] [Accepted: 09/05/2024] [Indexed: 10/08/2024]
Abstract
In this study, the hydrolysis of ethyl azolylacetates and ethyl cinnamates using K2CO3/ethanol under microwave irradiation was developed. For this purpose, ethyl azolylacetates were first synthesized by nucleophilic substitution between the corresponding azole and ethyl bromoacetate under sonication at 50 °C for 3 h, yielding derivatives with 10-92% chemical yields, while ethyl cinnamates were obtained by a microwave-assisted Horner-Wadsworth-Emmons (HWE) reaction of triethyl phosphonoacetate with a variety of aryl aldehydes at 140 °C for 20 min, yielding derivatives with moderate to high yields (67-98%). Initially, the optimization of the hydrolysis reaction was performed using ethyl pyrazolylacetate as a model starting material while varying the temperature, time, and base equivalents; the best results were achieved by carrying out the reaction at 180 °C for 20 min with 3.0 eq of K2CO3. This simple and greener method facilitated the synthesis of potassium carboxylates in moderate to high yields, 80-98% for azolyl derivatives and 73-98% for cinnamate derivatives. The structures of all potassium carboxylates were confirmed by FTIR, 1H, 13C NMR, and HRMS.
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Affiliation(s)
- Jorge Hernández-Fernández
- Facultad
de Ciencias Químicas, Universidad
Autónoma de Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San
Nicolás de los Garza, Nuevo León 66455, México
| | - Norma Tiempos-Flores
- Facultad
de Ciencias Químicas, Universidad
Autónoma de Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San
Nicolás de los Garza, Nuevo León 66455, México
| | - Mario Ordóñez
- Centro
de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos 62209, México
| | - Verónica
M. Rivas-Galindo
- Facultad
de Medicina, Universidad Autónoma
de Nuevo León, Fco. I. Madero s/n, Mitras Centro, Monterrey, Nuevo León 64460, México
| | - Susana López-Cortina
- Facultad
de Ciencias Químicas, Universidad
Autónoma de Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San
Nicolás de los Garza, Nuevo León 66455, México
| | - Katia Guadalupe García-Alvarez
- Facultad
de Ciencias Químicas, Universidad
Autónoma de Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San
Nicolás de los Garza, Nuevo León 66455, México
| | - Eugenio Hernández-Fernández
- Facultad
de Ciencias Químicas, Universidad
Autónoma de Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San
Nicolás de los Garza, Nuevo León 66455, México
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2
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Almas I, Malik A, Rasool N, Kanwal A, Khalid T, Nawaz H. Microwave-assisted protocol towards synthesis of heterocyclic molecules: a comparative analysis with conventional synthetic methodologies (years 2019-2023): a review. Mol Divers 2024:10.1007/s11030-024-10981-y. [PMID: 39302538 DOI: 10.1007/s11030-024-10981-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Accepted: 08/26/2024] [Indexed: 09/22/2024]
Abstract
Microwave-assisted protocols have become extensively accepted across various scientific and technological domains because of their numerous advantages, shorter reaction times, higher yields, and often milder reaction conditions. In this review, we focus on the synthesis of N, O, and S-containing heterocyclic structural cores, crucial in the development of pharmaceuticals, agrochemicals, and materials science following through conventional and microwave method via eliminating the side products and enhances the product yield that is nowadays the biggest barrier for a synthetic chemist. The major findings emphasizes the substantial advantages of microwave-assisted techniques over conventional synthetic protocols. This comparative study underscores the potential of microwave-assisted techniques to revolutionize heterocyclic compound synthesis, providing insights into optimizing reaction conditions and expanding the scope of chemical synthesis in industrial applications.
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Affiliation(s)
- Iffat Almas
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Ayesha Malik
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan.
| | - Nasir Rasool
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Aqsa Kanwal
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Tahira Khalid
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Hamna Nawaz
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
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3
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Gupta D, Guliani E, Bajaj K. Coumarin-Synthetic Methodologies, Pharmacology, and Application as Natural Fluorophore. Top Curr Chem (Cham) 2024; 382:16. [PMID: 38722386 DOI: 10.1007/s41061-024-00462-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 04/09/2024] [Indexed: 06/12/2024]
Abstract
Coumarins are secondary metabolites made up of benzene and α-pyrone rings fused together that can potentially treat various ailments, including cancer, metabolic, and degenerative disorders. Coumarins are a diverse category of both naturally occurring as well as synthesized compounds with numerous biological and therapeutic properties. Coumarins as fluorophores play a key role in fluorescent labeling of biomolecules, metal ion detection, microenvironment polarity detection, and pH detection. This review provides a detailed insight into the characteristics of coumarins as well as their biosynthesis in plants and metabolic pathways. Various synthetic strategies for coumarin core involving both conventional and green methods have been discussed comparing advantages and disadvantages of each method. Conventional methods discussed are Pechmann, Knoevenagel, Perkin, Wittig, Kostanecki, Buchwald-Hartwig, and metal-induced coupling reactions such as Heck and Suzuki, as well as green approaches involving microwave or ultrasound energy. Various pharmacological applications of coumarin derivatives are discussed in detail. The structural features and conditions responsible for influencing the fluorescence of coumarin core are also elaborated.
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Affiliation(s)
- Deepshikha Gupta
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Sector 125, Noida, India.
| | - Eksha Guliani
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Sector 125, Noida, India
| | - Kiran Bajaj
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Sector 125, Noida, India
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Bera SK, Behera S, De Luca L, Basoccu F, Mocci R, Porcheddu A. Unveiling the Untapped Potential of Bertagnini's Salts in Microwave-Assisted Synthesis of Quinazolinones. Molecules 2024; 29:1986. [PMID: 38731478 PMCID: PMC11085446 DOI: 10.3390/molecules29091986] [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: 03/29/2024] [Revised: 04/22/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Microwave-assisted organic synthesis (MAOS) has emerged as a transformative technique in organic chemistry, significantly enhancing the speed, efficiency, and selectivity of chemical reactions. In our research, we have employed microwave irradiation to expedite the synthesis of quinazolinones, using water as an eco-friendly solvent and thereby adhering to the principles of green chemistry. Notably, the purification of the product was achieved without the need for column chromatography, thus streamlining the process. A key innovation in our approach is using aldehyde bisulfite adducts (Bertagnini's salts) as solid surrogates of aldehydes. Bertagnini's salts offer several advantages over free aldehydes, including enhanced stability, easier purification, and improved reactivity. Green metrics and Eco-Scale score calculations confirmed the sustainability of this approach, indicating a reduction in waste generation and enhanced sustainability outcomes. This methodology facilitates the synthesis of a diverse array of compounds, offering substantial contributions to the field, with potential for widespread applications in pharmaceutical research and beyond.
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Affiliation(s)
- Shyamal Kanti Bera
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Cagliari, Italy; (S.K.B.); (S.B.); (F.B.); (R.M.)
| | - Sourav Behera
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Cagliari, Italy; (S.K.B.); (S.B.); (F.B.); (R.M.)
| | - Lidia De Luca
- Dipartimento di Scienze Chimiche, Fisiche, Matematiche e Naturali, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy;
| | - Francesco Basoccu
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Cagliari, Italy; (S.K.B.); (S.B.); (F.B.); (R.M.)
| | - Rita Mocci
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Cagliari, Italy; (S.K.B.); (S.B.); (F.B.); (R.M.)
| | - Andrea Porcheddu
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Cagliari, Italy; (S.K.B.); (S.B.); (F.B.); (R.M.)
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5
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Nazeri MT, Nasiriani T, Torabi S, Shaabani A. Isocyanide-based multicomponent reactions for the synthesis of benzopyran derivatives with biological scaffolds. Org Biomol Chem 2024; 22:1102-1134. [PMID: 38251960 DOI: 10.1039/d3ob01671d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Benzopyrans (BZPs) are among the most privileged and influential small O-heterocycles that form the core of many natural compounds, commercial drugs, biological compositions, agrochemicals, and functional materials. BZPs are divided into six general categories including coumarins, chromans, 2H-chromenes, 4H-chromenes, chromones, and 4-chromanones, each of which is abundant in many plants and foods. These oxygenated heterocyclic compounds are fascinating motifs and have extensive applications in biology and materials science. Hence, numerous efforts have been made to develop innovative approaches for their extraction and synthesis. However, most of them are step-by-step or multi-step strategies that suffer from waste material generation and a tedious extraction process. Isocyanide-based multicomponent reactions (I-MCRs) offer a highly efficient method for overcoming these problems. The I-MCR is a simple and environmentally friendly one-pot domino procedure that does not require intermediate isolation or workup and is generally more efficient in material usage. This review covers all research articles related to I-MCRs for synthesizing BZP derivatives from the beginning to the middle of the year 2023. This strategy will be useful for organic and pharmaceutical chemists to design new drugs and optimize the synthesis steps of biological compounds and commercial drugs with benzopyran cores.
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Affiliation(s)
- Mohammad Taghi Nazeri
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Tahereh Nasiriani
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Saeed Torabi
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Ahmad Shaabani
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
- Peoples' Friendship University of Russia (RUDN University), 6, Miklukho-Maklaya Street, Moscow, 117198, Russian Federation
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6
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Dong ZB, Gong Z, Dou Q, Cheng B, Wang T. A decade update on the application of β-oxodithioesters in heterocyclic synthesis. Org Biomol Chem 2023; 21:6806-6829. [PMID: 37555699 DOI: 10.1039/d3ob00601h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
The diverse synthesis of heterocyclic compounds has always been one of the popular subjects of organic chemistry. To this end, great efforts have been devoted to developing new reagents and establishing new strategies and methods concerning efficiency, selectivity and sustainability. β-Oxodithioesters and their enol tautomers (i.e., α-enolic dithioesters), as a class of simple and readily accessible sulfur-containing synthons, have been widely applied in the construction of various five- and six-membered heterocycles (e.g., thiophenes, thiopyrans, thiazoles, pyridines and quinolines) and other useful open-chain frameworks. Due to their unique chemical structures, β-oxodithioesters bear multiple reaction sites, which enable them to participate in two-component or multicomponent reactions to construct various heterocyclic compounds. In the past decade, the application of β-oxodithioesters in the synthesis of heterocycles has made remarkable progress. Herein, an update on the recent advances in the application of β-oxodithioesters in the synthesis of heterocycles during the period from 2013 to 2023/06 is provided. According to the different types of rings concerning heteroatoms in products, this review is divided into five sections under discussion including (i) synthesis of sulfur-containing heterocycles, (ii) synthesis of sulfur and nitrogen-containing heterocycles, (iii) synthesis of nitrogen-containing heterocycles, (iv) synthesis of nitrogen and oxygen-containing heterocycles, and (v) modification to other open-chain frameworks.
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Affiliation(s)
- Zhi-Bing Dong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
| | - Zhiying Gong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Qian Dou
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Bin Cheng
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Taimin Wang
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
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7
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Bukhari SNA, Ahmed N, Amjad MW, Hussain MA, Elsherif MA, Ejaz H, Alotaibi NH. Covalent Organic Frameworks (COFs) as Multi-Target Multifunctional Frameworks. Polymers (Basel) 2023; 15:267. [PMID: 36679148 PMCID: PMC9866219 DOI: 10.3390/polym15020267] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/27/2022] [Accepted: 12/27/2022] [Indexed: 01/06/2023] Open
Abstract
Covalent organic frameworks (COFs), synthesized from organic monomers, are porous crystalline polymers. Monomers get attached through strong covalent bonds to form 2D and 3D structures. The adjustable pore size, high stability (chemical and thermal), and metal-free nature of COFs make their applications wider. This review article briefly elaborates the synthesis, types, and applications (catalysis, environmental Remediation, sensors) of COFs. Furthermore, the applications of COFs as biomaterials are comprehensively discussed. There are several reported COFs having good results in anti-cancer and anti-bacterial treatments. At the end, some newly reported COFs having anti-viral and wound healing properties are also discussed.
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Affiliation(s)
- Syed Nasir Abbas Bukhari
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia
| | - Naveed Ahmed
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia
| | - Muhammad Wahab Amjad
- Center for Ultrasound Molecular Imaging and Therapeutics, Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Muhammad Ajaz Hussain
- Centre for Organic Chemistry, School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Mervat A. Elsherif
- Chemistry Department, College of Science, Jouf University, Sakaka 72388, Saudi Arabia
| | - Hasan Ejaz
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 72388, Saudi Arabia
| | - Nasser H. Alotaibi
- Department of Clinical Pharmacy, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia
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8
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Sahoo BM, Banik BK, Kumar BVVR, Panda KC, Tiwari A, Tiwari V, Singh S, Kumar M. Microwave Induced Green Synthesis: Sustainable Technology for Efficient Development of Bioactive Pyrimidine Scaffolds. Curr Med Chem 2023; 30:1029-1059. [PMID: 35733315 DOI: 10.2174/0929867329666220622150013] [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: 10/08/2021] [Revised: 03/10/2022] [Accepted: 04/01/2022] [Indexed: 11/22/2022]
Abstract
Microwave radiation is used as a heating source during the synthesis of heterocyclic compounds. The heating mechanisms involved in microwave-induced synthesis include dipolar polarization and ionic conduction. This heating technology follows the green protocol as it involves the use of recyclable organic solvents during synthesis. The microwave heating approach offers a faster rate of reaction, easier work-up procedure, and higher product yield with purity and also reduces environmental pollution. So, microwave heating is applied as a sustainable technology for the efficient production of pyrimidine compounds as one of the heterocyclic moieties. Pyrimidine is a six-membered nitrogenous heterocyclic compound that plays a significant role due to several therapeutic applications. This moiety acts as an essential building block for generating drug candidates with diverse biological activities, including anti-cancer (capecitabine), anti-thyroid (propylthiouracil), antihistaminic (pemirolast), antimalarial (pyrimethamine), antidiabetic (alloxan), antihypertensive (minoxidil), anti-inflammatory (octotiamine), antifungal (cyprodinil), antibacterial (sulfamethazine), etc. This review is focused on the synthesis of pyrimidine analogs under microwave irradiation technique and the study of their therapeutic potentials.
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Affiliation(s)
- Biswa Mohan Sahoo
- Roland Institute of Pharmaceutical Sciences (Biju Patnaik University of Technology Nodal Centre of Research), Berhampur 760010, Odisha, India
| | - Bimal Krishna Banik
- Department of Mathematics and Natural Sciences, College of Sciences and Human Studies, Prince Mohammad Bin Fahd University, Al Khobar, Kingdom of Saudi Arabia
| | - Bera Venkata Varaha Ravi Kumar
- Roland Institute of Pharmaceutical Sciences (Biju Patnaik University of Technology Nodal Centre of Research), Berhampur 760010, Odisha, India
| | - Krishna Chandra Panda
- Roland Institute of Pharmaceutical Sciences (Biju Patnaik University of Technology Nodal Centre of Research), Berhampur 760010, Odisha, India
| | - Abhishek Tiwari
- Faculty of Pharmacy, Pharmacy Academy, IFTM University, Lodhipur Rajput, Moradabad 244102, Uttar Pradesh, India
| | - Varsha Tiwari
- Faculty of Pharmacy, Pharmacy Academy, IFTM University, Lodhipur Rajput, Moradabad 244102, Uttar Pradesh, India
| | - Sunil Singh
- 4Department of Pharmaceutical Chemistry, Shri Sai College of Pharmacy, Handia, Prayagraj 221503, Uttar Pradesh, India
| | - Manish Kumar
- M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133207, Haryana, India
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Pasumpon K, Mahendran V, Shanmugam S. Microwave‐Assisted Tandem Copper‐Catalyzed Three‐Component Reaction for Synthesis of 2‐Iminopyrans. ChemistrySelect 2022. [DOI: 10.1002/slct.202203659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Kamaraj Pasumpon
- Department of Organic Chemistry School of Chemistry Madurai Kamaraj University Madurai 625 021
- Department of Chemistry Eurofins Advinus Biopharma Services India Pvt. Ltd Bangalore 560058
| | | | - Sivakumar Shanmugam
- Department of Organic Chemistry School of Chemistry Madurai Kamaraj University Madurai 625 021
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10
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Chang TH, Chang YC, Lee CI, Lin YR, Ko FH. Optimization Temperature Programming of Microwave-Assisted Synthesis ZnO Nanoneedle Arrays for Optical and Surface-Enhanced Raman Scattering Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3989. [PMID: 36432278 PMCID: PMC9696083 DOI: 10.3390/nano12223989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/20/2022] [Accepted: 11/10/2022] [Indexed: 06/16/2023]
Abstract
This study used a rapid and simple microwave-assisted synthesis method to grow ZnO nanoneedle arrays on the silicon substrate with the ZnO seed layer. The effects of reaction temperature and time on the lengths of ZnO nanoneedle arrays were investigated. The appropriate temperature programming step can grow the longer ZnO nanoneedle arrays at the same reaction time (25 min), which is 2.08 times higher than without the temperature programming step. The geometry of the ZnO nanoneedle arrays features a gradual decrease from the Si substrate to the surface, which provides an excellent progressive refractive index between Si and air, resulting in excellent antireflection properties over an extensive wavelength range. In addition, the ZnO nanoneedle arrays exhibit a suitable structure for uniform deposition of Ag nanoparticles, which can provide three-dimensional hot spots and surface active sites, resulting in higher surface-enhanced Raman scattering (SERS) enhancement, high uniformity, high reusability, and low detection limit for R6G molecule. The ZnO/Ag nanoneedle arrays can also reveal a superior SERS-active substrate detecting amoxicillin (10-8 M). These results are promising for applying the SERS technique for rapid low-concentration determination in different fields.
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Affiliation(s)
- Tung-Hao Chang
- Department of Radiation Oncology, Changhua Christian Hospital, Changhua 50006, Taiwan
- Department of Radiological Technology, Yuanpei University, Hsinchu 30015, Taiwan
- Department of Medical Imaging and Radiological Sciences, Central Taiwan University of Science and Technology, Taichung 40601, Taiwan
| | - Yu-Cheng Chang
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan
| | - Chung-I Lee
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Ying-Ru Lin
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Fu-Hsiang Ko
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
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11
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Nasiriani T, Javanbakht S, Nazeri MT, Farhid H, Khodkari V, Shaabani A. Isocyanide-Based Multicomponent Reactions in Water: Advanced Green Tools for the Synthesis of Heterocyclic Compounds. Top Curr Chem (Cham) 2022; 380:50. [PMID: 36136281 DOI: 10.1007/s41061-022-00403-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 08/12/2022] [Indexed: 12/01/2022]
Abstract
Reaction rate acceleration using green methods is an intriguing area of research for chemists. In this regard, water as a "green solvent" plays a crucial role in the acceleration of some organic transformations and reveals exclusive selectivity and reactivity in comparison with conventional organic solvents. In particular, multicomponent reactions (MCRs) as sustainable tools lead to the rapid generation of small-molecule libraries in water and aqueous media due to the prominent role of the hydrophobic effect. MCRs, as diversity-oriented synthesis (DOS) methods, have great efficiency with simple operations, atom, pot, and step economy synthesis, and mechanistic beauty. Among diverse classes of MCRs, isocyanide-based multicomponent reactions (I-MCRs), as sustainable and versatile reactions, have gained considerable attention in the synthesis of diverse heterocycle rings, especially in drug design because of the peculiar nature of isocyanide as a particular active reactant. I-MCRs that are performed in water are mild, environmentally friendly, and easily controlled, and have a reduced number of workup, purification, and extraction steps, which fit well with the advantages of "green" chemistry. Performing these powerful organic transformations in water and aqueous media is accompanied by acceleration owing to negative activation volumes, which originate from connecting several reactants together to generate a single product. It should be noted that the combination of MCR strategy and aqueous phase reaction is of growing interest for the development of sustainable synthetic techniques in organic conversions. However, an exclusive account focusing on the recent progress in eco-friendly I-MCRs for the construction of heterocycles in water and aqueous media is particularly lacking. This review highlights the progress of various kinds of I-MCRs in water and aqueous media as benign methods for the efficient construction of vital heterocyclic scaffolds, with a critical discussion of the subject in the period 2000-2021. We hope that this themed collection will be of interest and beneficial for organic and pharmaceutical chemists and will inspire more reaction development in this fascinating field.
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Affiliation(s)
- Tahereh Nasiriani
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran
| | - Siamak Javanbakht
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran
| | - Mohammad Taghi Nazeri
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran
| | - Hassan Farhid
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran
| | - Vida Khodkari
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran
| | - Ahmad Shaabani
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran. .,Peoples' Friendship University of Russia, RUDN University, 6, Miklukho-Maklaya Street, Moscow, 117198, Russian Federation.
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12
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Badiger KB, Kamanna K. Green Method Synthesis of Pyrano[2,3- d]Pyrimidine Derivatives: Antimicrobial and Electrochemical Behavior Studies. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2108852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Krishnappa B. Badiger
- Peptide and Medicinal Chemistry Research Laboratory, Department of Chemistry, Rani Channamma University, Belagavi, India
| | - Kantharaju Kamanna
- Peptide and Medicinal Chemistry Research Laboratory, Department of Chemistry, Rani Channamma University, Belagavi, India
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13
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Broadband Dielectric Spectroscopic Detection of Ethanol: A Side-by-Side Comparison of ZnO and HKUST-1 MOFs as Sensing Media. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10070241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The most common gas sensors are based on chemically induced changes in electrical resistivity and necessarily involve making imperfect electrical contacts to the sensing materials, which introduce errors into the measurements. We leverage thermal- and chemical-induced changes in microwave propagation characteristics (i.e., S-parameters) to compare ZnO and surface-anchored metal–organic-framework (HKUST-1 MOF) thin films as sensing materials for detecting ethanol vapor, a typical volatile organic compound (VOC), at low temperatures. We show that the microwave propagation technique can detect ethanol at relatively low temperatures (<100 °C), and afford new mechanistic insights that are inaccessible with the traditional dc-resistance-based measurements. In addition, the metrological technique avoids the inimical measurand distortions due to parasitic electrical effects inherent in the conductometric volatile organic compound detection.
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14
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Rahman M, Ghosh S, Bhattacherjee D, Zyryanov GV, Bagdi AK, Hajra A. Recent Advances in Microwave‐assisted Cross‐Coupling Reactions. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Matiur Rahman
- Ural Federal University named after the first President of Russia B N Yeltsin: Ural'skij federal'nyj universitet imeni pervogo Prezidenta Rossii B N El'cina Department of Organic and Biomolecular Chemistry RUSSIAN FEDERATION
| | | | - Dhananjay Bhattacherjee
- Ural Federal University named after the first President of Russia B N Yeltsin: Ural'skij federal'nyj universitet imeni pervogo Prezidenta Rossii B N El'cina Department of Organic and Biomolecular Chemistry RUSSIAN FEDERATION
| | - Grigory V. Zyryanov
- Ural Federal University named after the first President of Russia B N Yeltsin: Ural'skij federal'nyj universitet imeni pervogo Prezidenta Rossii B N El'cina Department of Organic and Biomolecular Chemistry RUSSIAN FEDERATION
| | | | - Alakananda Hajra
- Visva-Bharati Chemistry Santiniketan Road 731235 Santiniketan, Bolpur INDIA
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15
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Dhawale KD, Ingale AP, Pansare MS, Gaikwad SS, Thorat NM, Patil LR. Sulfated Tungstate as a Heterogeneous Catalyst for Synthesis of 3-Functionalized Coumarins under Solvent-Free Conditions. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2074477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Kiran D. Dhawale
- Department of Chemistry, Rao Bahadur Narayanrao Borawake College, Savitribai Phule Pune University, Ahmednagar, Maharashtra, India
| | - Ajit P. Ingale
- Department of Chemistry, Dada Patil College, Savitribai Phule Pune University, Ahmednagar, Maharashtra, India
| | - Madhuri S. Pansare
- Department of Chemistry, Dada Patil College, Savitribai Phule Pune University, Ahmednagar, Maharashtra, India
| | - Sanjay S. Gaikwad
- Department of Chemistry, MES, Abasaheb Garware College, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Nitin M. Thorat
- Department of Chemistry, Maharaja Jivajirao Shinde Mahavidyalaya, Savitribai Phule Pune University, Ahmednagar, Maharashtra, India
| | - Limbraj R. Patil
- Department of Chemistry, Maharaja Jivajirao Shinde Mahavidyalaya, Savitribai Phule Pune University, Ahmednagar, Maharashtra, India
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16
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Yun ES, Akhtar MS, Mohandoss S, Lee YR. Microwave-assisted annulation for the construction of pyrido-fused heterocycles and their application as photoluminescent chemosensors. Org Biomol Chem 2022; 20:3397-3407. [PMID: 35362508 DOI: 10.1039/d2ob00257d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A catalyst-free microwave-assisted annulation protocol for the preparation of biologically interesting pyrido-fused quinazolinones and pyrido[1,2-a]benzimidazoles is developed. This reaction involves the [3 + 3] annulation of various quinazolinones or benzimidazoles with 3-formylchromones to yield functionalized 11H-pyrido[2,1-b]quinazolin-11-one and pyrido[1,2-a] benzimidazole derivatives. This approach is successfully extended to the construction of various pyrazolo[4,3-d]pyrido[1,2-a]pyrimidin-10(1H)-ones. The present approach is complementary to the existing synthetic methodologies and offers a rapid and facile approach with a broad substrate scope, good yields, catalyst-free conditions, and a high functional group tolerance. The optimal synthesized compound is also employed as an "on-off" photoluminescent probe for the selective detection of Fe3+ and Ag+ metal ions.
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Affiliation(s)
- Ei Seul Yun
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Muhammad Saeed Akhtar
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Sonaimuthu Mohandoss
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
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17
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León Sandoval A, Doherty KE, Wadey GP, Leadbeater NE. Solvent- and additive-free oxidative amidation of aldehydes using a recyclable oxoammonium salt. Org Biomol Chem 2022; 20:2249-2254. [PMID: 35230379 DOI: 10.1039/d2ob00307d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A range of acyl azoles have been prepared from aromatic, heteroaromatic, and aliphatic aldehydes by means of an oxidative amidation reaction. The methodology employs a substoichiometric quantity of an oxoammonium salt as the oxidant. It avoids the need for additives such as a base, is run solvent-free, and the oxoammonium salt is recyclable.
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Affiliation(s)
- Arturo León Sandoval
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269, USA.
| | - Katrina E Doherty
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269, USA.
| | - Geoffrey P Wadey
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269, USA.
| | - Nicholas E Leadbeater
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269, USA.
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18
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Borah B, Dwivedi KD, Kumar B, Chowhan LR. Recent advances in the microwave- and ultrasound-assisted green synthesis of coumarin-heterocycles. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103654] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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19
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Photodynamic Evaluation of Triazine Appended Porphyrins as Anti-Leishmanial and Anti-tumor Agents. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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20
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Khatavi SY, Kamanna K. Facile and greener method synthesis of pyrano[2,3-d]pyrimidine-2,4,7-triones: Electrochemical and biological activity evaluation studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131708] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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21
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Construction and Aromatization of Hantzsch 1,4‐Dihydropyridines under Microwave Irradiation: A Green Approach. ChemistrySelect 2022. [DOI: 10.1002/slct.202104032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Teja C, Ramanathan K, Naresh K, Vidya R, Gomathi K, Nawaz FR. Design, Synthesis, and Biological Evaluation of Tryptanthrin Alkaloids as Potential anti-Diabetic and Anticancer Agents. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.2021257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Chitrala Teja
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, India
| | - Karuppasamy Ramanathan
- Department of Biotechnology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
| | - Kondapalli Naresh
- Department of Pharmaceutical Chemistry, G. Pulla Reddy College of Pharmacy, Hyderabad, India
| | - R. Vidya
- VIT School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, India
| | - K. Gomathi
- Dr. MGR Educational Research Institute, Chennai, India
| | - Fazlur Rahman Nawaz
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, India
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23
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Teja C, Roshini H, Thiyagamurthy P, Daniel JA, Devi SA, Vidya R, Nawaz Khan FR. Tetrabutylammonium-salt, a novel ionic medium for the synthesis of quinoline–hybrid chalcones, and its biological evaluation. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.2020308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Chitrala Teja
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Hanumanthu Roshini
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Pandurangan Thiyagamurthy
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - J. Arul Daniel
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - S. Asha Devi
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - R. Vidya
- VIT School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Fazlur Rahman Nawaz Khan
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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24
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Cirujano FG, Dhakshinamoorthy A. Supported metals on porous solids as heterogeneous catalysts for the synthesis of propargylamines. NEW J CHEM 2022. [DOI: 10.1039/d1nj05091e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This perspective summarizes recent developments in the synthesis of propargylamines using porous solids (zeolites, MOFs and carbon) as supports/catalysts.
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Affiliation(s)
- Francisco G. Cirujano
- Institute of Molecular Science (ICMOL), Universidad de Valencia, 46980 Paterna, Valencia, Spain
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25
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Macías-Benítez P, Sierra-Padilla A, J Tenorio M, Moreno-Dorado FJ, Guerra FM. Copper-Catalyzed Microwave-Expedited Oxyphosphorylation of Alkynes with Diethyl Phosphite and t-Butyl Hydroperoxide Synthesis of Densely Functionalized Phosphonylated Indenones. J Org Chem 2021; 86:16409-16424. [PMID: 34709823 DOI: 10.1021/acs.joc.1c01763] [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
Treatment of alkynes with diethyl phosphite and t-butyl hydroperoxide in the presence of [Cu(MeCN)4]BF4 under microwave irradiation produced the oxyphosphorylation of the triple bond, giving rise to the corresponding β-ketophosphonates in moderate-to-good yields. When the triple bond was conjugated to a carbonyl group bearing an aromatic ring, it led to the cyclization of the resulting ketone intermediate, producing eventually different phosphonylated indenones.
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Affiliation(s)
- Pablo Macías-Benítez
- Departamento de Química Orgánica and Instituto de Biomoléculas, Universidad de Cádiz, Polígono Río San Pedro s/n, Puerto Real 11510, Cádiz, Spain
| | - Alfonso Sierra-Padilla
- Departamento de Química Orgánica and Instituto de Biomoléculas, Universidad de Cádiz, Polígono Río San Pedro s/n, Puerto Real 11510, Cádiz, Spain
| | - Manuel J Tenorio
- Departamento de Ciencia de Materiales e Ingeniería Metalúrgica y Química Inorgánica and Instituto de Biomoléculas, Universidad de Cadiz, Polígono Río San Pedro s/n, Puerto Real 11510, Cádiz, Spain
| | - F Javier Moreno-Dorado
- Departamento de Química Orgánica and Instituto de Biomoléculas, Universidad de Cádiz, Polígono Río San Pedro s/n, Puerto Real 11510, Cádiz, Spain
| | - Francisco M Guerra
- Departamento de Química Orgánica and Instituto de Biomoléculas, Universidad de Cádiz, Polígono Río San Pedro s/n, Puerto Real 11510, Cádiz, Spain
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26
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Mali G, Shaikh BA, Garg S, Kumar A, Bhattacharyya S, Erande RD, Chate AV. Design, Synthesis, and Biological Evaluation of Densely Substituted Dihydropyrano[2,3- c]pyrazoles via a Taurine-Catalyzed Green Multicomponent Approach. ACS OMEGA 2021; 6:30734-30742. [PMID: 34805701 PMCID: PMC8600639 DOI: 10.1021/acsomega.1c04773] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/18/2021] [Indexed: 05/07/2023]
Abstract
An efficient taurine-catalyzed green multicomponent approach has been described for the first time to synthesize densely substituted therapeutic core dihydropyrano[2,3-c]pyrazoles. Applications of the developed synthetic strategies and technologies revealed the synthesis of a series of newly designed 1,4-dihydropyrano[2,3-c]pyrazoles containing isonicotinamide, spirooxindole, and indole moieties. Detailed in silico analysis of the synthesized analogues revealed their potential to bind wild-type and antibiotic-resistant variants of dihydrofolate reductase, a principal drug target enzyme for emerging antibiotic-resistant pathogenic Staphylococcus aureus strains. Hence, the synthesized dihydropyrano[2,3-c]pyrazole derivatives presented herein hold immense promise to develop future antistaphylococcal therapeutic agents.
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Affiliation(s)
- Ghanshyam Mali
- Department
of Chemistry, Indian Institute of Technology
Jodhpur, Jodhpur 342037, India
| | - Badrodin A. Shaikh
- Department
of Chemistry, Dr. Babasaheb Ambedkar Marathwada
University, Aurangabad 431004, India
| | - Shivani Garg
- Department
of Bioscience and Bioengineering, Indian
Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Akhilesh Kumar
- Department
of Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, India
| | - Sudipta Bhattacharyya
- Department
of Bioscience and Bioengineering, Indian
Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Rohan D. Erande
- Department
of Chemistry, Indian Institute of Technology
Jodhpur, Jodhpur 342037, India
| | - Asha V. Chate
- Department
of Chemistry, Dr. Babasaheb Ambedkar Marathwada
University, Aurangabad 431004, India
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27
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Klintworth R, Morgans GL, Scalzullo SM, de Koning CB, van Otterlo WAL, Michael JP. Silica gel and microwave-promoted synthesis of dihydropyrrolizines and tetrahydroindolizines from enaminones. Beilstein J Org Chem 2021; 17:2543-2552. [PMID: 34760023 PMCID: PMC8551872 DOI: 10.3762/bjoc.17.170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 09/29/2021] [Indexed: 01/02/2023] Open
Abstract
A wide range of N-(ethoxycarbonylmethyl)enaminones, prepared by the Eschenmoser sulfide contraction between N-(ethoxycarbonylmethyl)pyrrolidine-2-thione and various bromomethyl aryl and heteroaryl ketones, underwent cyclization in the presence of silica gel to give ethyl 6-(hetero)aryl-2,3-dihydro-1H-pyrrolizine-5-carboxylates within minutes upon microwave heating in xylene at 150 °C. Instead of functioning as a nucleophile, the enaminone acted as an electrophile at its carbonyl group during the cyclization. Yields of the bicyclic products were generally above 75%. The analogous microwave-assisted reaction to produce ethyl 2-aryl-5,6,7,8-tetrahydroindolizine-3-carboxylates from (E)-ethyl 2-[2-(2-oxo-2-arylethylidene)piperidin-1-yl]acetates failed in nonpolar solvents, but occurred in ethanol at lower temperature and microwave power, although requiring much longer time. A possible mechanism for the cyclization is presented, and further functionalization of the newly created pyrrole ring in the dihydropyrrolizine core is described.
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Affiliation(s)
- Robin Klintworth
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO Wits 2050, Johannesburg, South Africa
| | - Garreth L Morgans
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO Wits 2050, Johannesburg, South Africa
| | - Stefania M Scalzullo
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO Wits 2050, Johannesburg, South Africa
| | - Charles B de Koning
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO Wits 2050, Johannesburg, South Africa
| | - Willem A L van Otterlo
- Department of Chemistry and Polymer Science, Stellenbosch University, Matieland 7602, Stellenbosch, South Africa
| | - Joseph P Michael
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO Wits 2050, Johannesburg, South Africa
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28
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Rostami A, Ebrahimi A, Sakhaee N, Golmohammadi F, Al-Harrasi A. Microwave-Assisted Electrostatically Enhanced Phenol-Catalyzed Synthesis of Oxazolidinones. J Org Chem 2021; 87:40-55. [PMID: 34581567 DOI: 10.1021/acs.joc.1c01686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An electrostatically enhanced phenol is utilized as a straightforward, sustainable, and potent one-component organocatalyst for the atom-economic transformation of epoxides to oxazolidinones under microwave irradiation. Integrating a positively charged center into phenols over a modular one-step preparation gives rise to a bifunctional system with improved acidity and activity, competent in rapid assembly of epoxides and isocyanates under microwave irradiation in a short reaction time (20-60 min). A careful assessment of the efficacy of various positively charged phenols and anilines and the impact of several factors, such as catalyst loading, temperature, and the kind of nucleophile, on catalytic reactivity were examined. Under neat conditions, this one-component catalytic platform was exploited to prepare more than 40 examples of oxazolidinones from a variety of aryl- and alkyl-substituted epoxides and isocyanates within minutes, where up to 96% yield and high degree of selectivity were attained. DFT calculations to achieve reaction barriers for different catalytic routes were conducted to provide mechanistic understanding and corroborated the experimental findings in which concurrent epoxide ring-opening and isocyanate incorporation were proposed.
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Affiliation(s)
- Ali Rostami
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
| | - Amirhossein Ebrahimi
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
| | - Nader Sakhaee
- Roger Adams Laboratory, University of Illinois, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Farhad Golmohammadi
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
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29
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Deb B, Debnath S, Chakraborty A, Majumdar S. Bis-indolylation of aldehydes and ketones using silica-supported FeCl 3: molecular docking studies of bisindoles by targeting SARS-CoV-2 main protease binding sites. RSC Adv 2021; 11:30827-30839. [PMID: 35498942 PMCID: PMC9041420 DOI: 10.1039/d1ra05679d] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 09/01/2021] [Indexed: 02/06/2023] Open
Abstract
We report herein an operationally simple, efficient and versatile procedure for the synthesis of bis-indolylmethanes via the reaction of indoles with aldehydes or ketones in the presence of silica-supported ferric chloride under grindstone conditions. The prepared supported catalyst was characterized by SEM and EDX spectroscopy. The present protocol has several advantages such as shorter reaction time, high yield, avoidance of using harmful organic solvents during the reaction and tolerance of a wide range of functional groups. Molecular docking studies targeted toward the binding site of SARS-CoV-2 main protease (3CLpro or Mpro) enzymes were investigated with the synthesized bis-indoles. Our study revealed that some of the synthesized compounds have potentiality to inhibit the SARS-CoV-2 Mpro enzyme by interacting with key amino acid residues of the active sites via hydrophobic as well as hydrogen bonding interactions.
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Affiliation(s)
- Barnali Deb
- Department of Chemistry, Tripura University Suryamaninagar 799 022 India +91-381-237-4802 +91-381-237-9070
| | - Sudhan Debnath
- Department of Chemistry, Netaji Subhash Mahavidalaya Tripura 799114 India
| | - Ankita Chakraborty
- Department of Chemistry, Tripura University Suryamaninagar 799 022 India +91-381-237-4802 +91-381-237-9070
| | - Swapan Majumdar
- Department of Chemistry, Tripura University Suryamaninagar 799 022 India +91-381-237-4802 +91-381-237-9070
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30
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Microwave-Assisted, One-Pot Synthesis of Doxycycline under Heterogeneous Catalysis in Water. Antibiotics (Basel) 2021; 10:antibiotics10091084. [PMID: 34572666 PMCID: PMC8466421 DOI: 10.3390/antibiotics10091084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/03/2021] [Accepted: 09/05/2021] [Indexed: 12/01/2022] Open
Abstract
The selective synthesis of active pharmaceutical molecules is a challenging issue, particularly when attempting to make the reactions even more sustainable. The present work focuses on the microwave-assisted hydrogenolysis of oxytetracycline to selectively produce α-doxycycline. Although the combination of microwave irradiation and a heterogeneous rhodium catalyst provided good conversions, the selective synthesis of active α-doxycycline was only achieved when an oxytetracycline-cyclodextrin complex was used as the starting material, giving the desired product at 34.0% yield in a one-step reaction under very mild conditions.
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31
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Tandon R, Tandon N, Patil SM. Overview on magnetically recyclable ferrite nanoparticles: synthesis and their applications in coupling and multicomponent reactions. RSC Adv 2021; 11:29333-29353. [PMID: 35479579 PMCID: PMC9040805 DOI: 10.1039/d1ra03874e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/02/2021] [Indexed: 12/22/2022] Open
Abstract
Nanocatalysis is an emerging area of research that has attracted much attention over the past few years. It provides the advantages of both homogeneous as well as heterogeneous catalysis in terms of activity, selectivity, efficiency and reusability. Magnetically recoverable nanocatalysts provide a larger surface area for the chemical transformations where the organic groups can be anchored and lead to decrease in the reaction time, increase in the reaction output and improve the atom economy of the chemical reactions. Moreover, magnetic nanocatalysts provide a greener approach towards the chemical transformations and are easily recoverable by the aid of an external magnet for their reusability. This review aims to give an insight into the important work done in the field of magnetically recoverable nanocatalysts and their applications in carbon-carbon and carbon-heteroatom bond formation.
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Affiliation(s)
- Runjhun Tandon
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 India
| | - Nitin Tandon
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 India
| | - Shripad M Patil
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University Phagwara-144411 India
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32
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Singh R, Sindhu J, Devi M, Kumar A, Kumar R, Hussain K, Kumar P. Solid‐Supported Materials‐Based Synthesis of 2‐Substituted Benzothiazoles: Recent Developments and Sanguine Future. ChemistrySelect 2021. [DOI: 10.1002/slct.202101368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Rahul Singh
- Department of Chemistry Kurukshetra University Kurukshetra 136119 INDIA
| | - Jayant Sindhu
- Department of Chemistry COBS&H CCS Haryana Agricultural University Hisar 125004 INDIA
| | - Meena Devi
- Department of Chemistry Kurukshetra University Kurukshetra 136119 INDIA
| | - Ashwani Kumar
- Department of Pharmaceutical Sciences Guru Jambheshwar University of Science and Technology Hisar 125001 INDIA
| | - Ramesh Kumar
- Department of Chemistry Kurukshetra University Kurukshetra 136119 INDIA
| | - Khalid Hussain
- Department of Applied Sciences and Humanities Mewat Engineering College Nuh 122107 INDIA
| | - Parvin Kumar
- Department of Chemistry Kurukshetra University Kurukshetra 136119 INDIA
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33
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Ingale AP, Shinde SV, Thorat NM. Sulfated tungstate: A highly efficient, recyclable and ecofriendly catalyst for chemoselective N-tert butyloxycarbonylation of amines under the solvent-free conditions. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1942060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ajit P. Ingale
- Department of Chemistry, Dada Patil College, Savitribai Phule Pune University, Ahmednagar, India
| | - Sandeep V. Shinde
- Department of Chemistry, Pratibha Niketan College, Swami Ramanand Teerth Marathwada University, Nanded, India
| | - Nitin M. Thorat
- Department of Chemistry, Maharaja Jivajirao Shinde College, Savitribai Phule Pune University, Ahmednagar, India
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Teja C, Garg A, Rohith G, Roshini H, Jena S, Nawaz Khan FR. Diversity Oriented Synthesis of Oxygen-Heterocycles, Warfarin Analogs Utilizing Microwave-Assisted Dimethyl Urea-Based Deep Eutectic Solvents. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1912123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Chitrala Teja
- Organic and Medicinal Chemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Ashna Garg
- Organic and Medicinal Chemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - G.K. Rohith
- Organic and Medicinal Chemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Hanumanthu Roshini
- Organic and Medicinal Chemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Sushovan Jena
- Organic and Medicinal Chemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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Tamargo RJI, Rubio PYM, Mohandoss S, Shim JJ, Lee YR. Cyrene™ as a Neoteric Bio-Based Solvent for Catalyst-Free Microwave-Assisted Construction of Diverse Bipyridine Analogues for Heavy-Metal Sensing. CHEMSUSCHEM 2021; 14:2133-2140. [PMID: 33780600 DOI: 10.1002/cssc.202100379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/26/2021] [Indexed: 06/12/2023]
Abstract
An environment-friendly synthetic protocol was developed to access polyfunctionalized bipyridines from readily available amines, chromone-3-carboxaldehydes, and pyridinylacetonitriles under catalyst- and additive-free conditions using the bio-renewable neoteric solvent dihydrolevoglucosenone (Cyrene™). In this strategy, amines served as both a mild-base promoter and a substrate. In addition, water was the only by-product of this reaction. This multi-component protocol provided highly diverse 2,3-, 3,3-, and 3,4-bipyridines in good-to-excellent yields. Operational simplicity, short reaction time, excellent atom economy, and easily obtainable substrates are among the features of this microwave-assisted synthesis. Additionally, the compounds synthesized via this method have demonstrated the ability to detect heavy metals, specifically mercury(II), copper(II), and iron (III) ions.
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Affiliation(s)
- Ramuel John Inductivo Tamargo
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
- Advanced Materials and Organic Synthesis Laboratory, Department of Chemical Engineering, University of the Philippines Diliman, Quezon City, 1101, Philippines
| | - Peter Yuosef M Rubio
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
| | - Sonaimuthu Mohandoss
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
| | - Jae-Jin Shim
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
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Farhid H, Khodkari V, Nazeri MT, Javanbakht S, Shaabani A. Multicomponent reactions as a potent tool for the synthesis of benzodiazepines. Org Biomol Chem 2021; 19:3318-3358. [PMID: 33899847 DOI: 10.1039/d0ob02600j] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Benzodiazepines (BZDs), a diverse class of benzofused seven-membered N-heterocycles, display essential pharmacological properties and play vital roles in some biochemical processes. They have mainly been prescribed as potential therapeutic agents, which interestingly represent various biological activities such as anticancer, anxiolytic, antipsychotic, anticonvulsant, antituberculosis, muscle relaxant, and antimicrobial activities. The extensive biological activities of BZDs in various fields have encouraged medicinal chemists to discover and design novel BZD-based scaffolds as potential therapeutic candidates with the favorite biological activity through an efficient protocol. Although certainly valuable and important, conventional synthetic routes to these bicyclic benzene compounds contain methodologies often requiring multistep procedures, which suffer from waste materials generation and lack of sustainability. By contrast, multicomponent reactions (MCRs) have recently advanced as a green synthetic strategy for synthesizing BZDs with the desired scope. In this regard, MCRs, especially Ugi and Ugi-type reactions, efficiently and conveniently supply various complex synthons, which can easily be converted to the BZDs via suitable post-transformations. Also, MCRs, especially Mannich-type reactions, provide speedy and economic approaches for the one-pot and one-step synthesis of BZDs. As a result, various functionalized-BZDs have been achieved by developing mild, efficient, and high-yielding MCR protocols. This review covers all aspects of the synthesis of BZDs with a particular focus on the MCRs as well as the mechanism chemistry of synthetic protocols. The present manuscript opens a new avenue for organic, medicinal, and industrial chemists to design safe, environmentally benign, and economical methods for the synthesis of new and known BZDs.
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Affiliation(s)
- Hassan Farhid
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Vida Khodkari
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Mohammad Taghi Nazeri
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Siamak Javanbakht
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Ahmad Shaabani
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran. and Peoples' Friendship University of Russia (RUDN University), 6, Miklukho-Maklaya Street, Moscow, 117198, Russian Federation
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Sharifi A, Babaalian Z, Abaee MS, Moazami M, Mirzaei M. Synergistic promoting effect of ball milling and Fe(ii) catalysis for cross-dehydrogenative-coupling of 1,4-benzoxazinones with indoles. HETEROCYCL COMMUN 2021. [DOI: 10.1515/hc-2020-0123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
In this work, a novel C(sp3)–C(sp2) cross-dehydrogenative-coupling method is developed to react benzoxazin-2-one derivatives with various indoles. As a result, combined use of ball milling and Fe(ii) catalysis leads to rapid coupling of 1,4-benzoxazinones with derivatives of indole. Under the conditions, derivatives of 1 couple with various indoles at room temperature to produce good yields of the desired compounds within 0.5–2 h time period. Thus, derivatives of both starting materials couple smoothly under relatively mild conditions to give good yields of 3.
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Affiliation(s)
- Ali Sharifi
- Organic Chemistry Department, Chemistry and Chemical Engineering Research Center of Iran , P. O. Box 14335-186 , Tehran , Iran
| | - Zahra Babaalian
- Organic Chemistry Department, Chemistry and Chemical Engineering Research Center of Iran , P. O. Box 14335-186 , Tehran , Iran
| | - M. Saeed Abaee
- Organic Chemistry Department, Chemistry and Chemical Engineering Research Center of Iran , P. O. Box 14335-186 , Tehran , Iran
| | - Maryam Moazami
- Organic Chemistry Department, Chemistry and Chemical Engineering Research Center of Iran , P. O. Box 14335-186 , Tehran , Iran
| | - Mojtaba Mirzaei
- Organic Chemistry Department, Chemistry and Chemical Engineering Research Center of Iran , P. O. Box 14335-186 , Tehran , Iran
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Soni JP, Joshi SV, Chemitikanti KS, Shankaraiah N. The Riveting Chemistry of Poly‐
aza
‐heterocycles Employing Microwave Technique: A Decade Review. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001472] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Jay Prakash Soni
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 India
| | - Swanand Vinayak Joshi
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 India
| | - Krishna Sowjanya Chemitikanti
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 India
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Alves TMF, Jardim GAM, Ferreira MAB. A green metal-free "one-pot" microwave assisted synthesis of 1,4-dihydrochromene triazoles. RSC Adv 2021; 11:10336-10339. [PMID: 35423519 PMCID: PMC8695595 DOI: 10.1039/d1ra01169c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 02/24/2021] [Indexed: 12/16/2022] Open
Abstract
The synthesis of several 4-aryl-1,4-dihydrochromene-triazoles was achieved via a metal-free "one-pot" procedure using PEG400 as the sole solvent in an eco-friendly process. Using microwave irradiation, the triazole derivatives were obtained in good yields and short reaction times starting from readily accessible building blocks.
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Affiliation(s)
- Tânia M F Alves
- Centre for Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar Rodovia Washington Luís, Km 235, SP-310, São Carlos São Paulo 13565-905 Brazil
| | - Guilherme A M Jardim
- Centre for Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar Rodovia Washington Luís, Km 235, SP-310, São Carlos São Paulo 13565-905 Brazil
| | - Marco A B Ferreira
- Centre for Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar Rodovia Washington Luís, Km 235, SP-310, São Carlos São Paulo 13565-905 Brazil
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40
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Banik BK, Sahoo BM, Kumar BVVR, Panda KC, Jena J, Mahapatra MK, Borah P. Green Synthetic Approach: An Efficient Eco-Friendly Tool for Synthesis of Biologically Active Oxadiazole Derivatives. Molecules 2021; 26:molecules26041163. [PMID: 33671751 PMCID: PMC7927091 DOI: 10.3390/molecules26041163] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/30/2020] [Accepted: 01/07/2021] [Indexed: 11/23/2022] Open
Abstract
Green synthetic protocol refers to the development of processes for the sustainable production of chemicals and materials. For the synthesis of various biologically active compounds, energy-efficient and environmentally benign processes are applied, such as microwave irradiation technology, ultrasound-mediated synthesis, photo-catalysis (ultraviolet, visible and infrared irradiation), molecular sieving, grinding and milling techniques, etc. Thesemethods are considered sustainable technology and become valuable green protocol to synthesize new drug molecules as theyprovidenumerous benefits over conventional synthetic methods.Based on this concept, oxadiazole derivatives are synthesized under microwave irradiation technique to reduce the formation of byproduct so that the product yield can be increased quantitatively in less reaction time. Hence, the synthesis of drug molecules under microwave irradiation follows a green chemistry approach that employs a set of principles to minimize or remove the utilization and production of hazardous toxic materials during the design, manufacture and application of chemical substances.This approach plays a major role in controlling environmental pollution by utilizing safer solvents, catalysts, suitable reaction conditions and thereby increases the atom economy and energy efficiency. Oxadiazole is a five-membered heterocyclic compound that possesses one oxygen and two nitrogen atoms in the ring system.Oxadiazole moiety is drawing considerable interest for the development of new drug candidates with potential therapeutic activities including antibacterial, antifungal, antiviral, anticonvulsant, anticancer, antimalarial, antitubercular, anti-asthmatic, antidepressant, antidiabetic, antioxidant, antiparkinsonian, analgesic and antiinflammatory, etc. This review focuses on different synthetic approaches of oxadiazole derivatives under microwave heating method and study of their various biological activities.
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Affiliation(s)
- Bimal Krishna Banik
- Department of Mathematics and Natural Sciences, College of Sciences and Human Studies, Prince Mohammad Bin Fahd University, Al Khobar 31952, Saudi Arabia
- Correspondence: (B.K.B.); (B.M.S.)
| | - Biswa Mohan Sahoo
- Roland Institute of Pharmaceutical Sciences, Biju Patnaik University of Technology Nodal Centre of Research, Berhampur 760010, India; (B.V.V.R.K.); (K.C.P.); (J.J.)
- Correspondence: (B.K.B.); (B.M.S.)
| | - Bera Venkata Varaha Ravi Kumar
- Roland Institute of Pharmaceutical Sciences, Biju Patnaik University of Technology Nodal Centre of Research, Berhampur 760010, India; (B.V.V.R.K.); (K.C.P.); (J.J.)
| | - Krishna Chandra Panda
- Roland Institute of Pharmaceutical Sciences, Biju Patnaik University of Technology Nodal Centre of Research, Berhampur 760010, India; (B.V.V.R.K.); (K.C.P.); (J.J.)
| | - Jasma Jena
- Roland Institute of Pharmaceutical Sciences, Biju Patnaik University of Technology Nodal Centre of Research, Berhampur 760010, India; (B.V.V.R.K.); (K.C.P.); (J.J.)
| | | | - Preetismita Borah
- CSIR-Central Scientific Instruments Organization, Chandigarh 160030, India;
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41
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Virgin and chemically functionalized amino acids as green corrosion inhibitors: Influence of molecular structure through experimental and in silico studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129259] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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1D Zn(II) Coordination Polymers as Effective Heterogeneous Catalysts in Microwave-Assisted Single-Pot Deacetalization-Knoevenagel Tandem Reactions in Solvent-Free Conditions. Catalysts 2021. [DOI: 10.3390/catal11010090] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The new 1D CPs [Zn(L1)(H2O)4]n.nH2O (1) and [Zn(L2)(H2O)2]n (2) [L1 = 1,1′-(ethane-1,2-diyl)bis(6-oxo-1,6-dihydropyridine-3-carboxylic acid); L2 = 1,1′-(propane-1,3-diyl)bis(6-oxo-1,6-dihydropyridine-3-carboxylic acid)] were prepared from flexible dicarboxylate pro-ligands (H2L1 and H2L2). Both CPs 1 and 2 were characterized by elemental, FTIR, and powder X-ray diffraction analysis. Their geometry and the structural features were unveiled by single-crystal X-ray diffraction analysis. The underlying topology of the CPs was illustrated by the topological analysis of the H-bonded structure of CP 1, which revealed a 3,4,6-connected trinodal net. On the other hand, topological analysis on the hydrogen-bonded network of CP 2 showed a 2,3,3,4,6,7-connected hexanodal net. The thermal stability of the CPs was investigated by thermogravimetric analysis. CPs 1 and 2 act as heterogeneous catalysts in one-pot tandem deacetalization–Knoevenagel condensation reactions under environmentally mild conditions. CPs 1 exhibits a yield of ca. 91% in a microwave-assisted solvent-free medium, whereas a slightly lower yield was obtained for CP 2 (87%) under the same experimental protocol. The recyclability of catalyst 1 was also assessed. To our knowledge, these are the first Zn(II)-based CPs to be applied as heterogeneous catalysts for the above tandem reactions under environmentally friendly conditions.
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Singh S, Dhanawat M, Gupta S, Kumar D, Kakkar S, Nair A, Verma I, Sharma P. Naturally Inspired Pyrimidines Analogues for Alzheimer's Disease. Curr Neuropharmacol 2021; 19:136-151. [PMID: 33176653 PMCID: PMC8033975 DOI: 10.2174/1570159x18666201111110136] [Citation(s) in RCA: 3] [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: 06/17/2020] [Revised: 10/28/2020] [Accepted: 11/06/2020] [Indexed: 01/17/2023] Open
Abstract
Alzheimer's disease (AD) is a multifarious and developing neurodegenerative disorder. The treatment of AD is still a challenge and availability of drug therapy on the basis of symptoms is not up to the mark. In the context of existence, which is getting worse for the human brain, it is necessary to take care of all critical measures. The disease is caused due to multidirectional pathology of the body, which demands the multi-target-directed ligand (MTDL) approach. This gives hope for new drugs for AD, summarized here in with the pyrimidine based natural product inspired molecule as a lead. The review is sufficient in providing a list of chemical ingredients of the plant to cure AD and screen them against various potential targets of AD. The synthesis of a highly functionalized scaffold in one step in a single pot without isolating the intermediate is a challenging task. In few examples, we have highlighted the importance of this kind of reaction, generally known as multi-component reaction. Multi-component is a widely accepted technique by the drug discovery people due to its high atom economy. It reduces multi-step process to a one-step process, therefore the compounds library can be made in minimum time and cost. This review has highlighted the importance of multicomponent reactions by giving the example of active scaffolds of pyrimidine/fused pyrimidines. This would bring importance to the fast as well as smart synthesis of bio-relevant molecules.
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Affiliation(s)
- Shivani Singh
- Department of Pharmaceutical Sciences, Somany College of Pharmacy, Rewari, Haryana, India
- Department of Pharmaceutical Sciences, Maharishi Dayanand University, Rohtak, Haryana, India
| | - Meenakshi Dhanawat
- Department of Pharmaceutical Sciences, M. M. College of Pharmacy, M. M. (Deemed to be University), Mullana, (Ambala), Haryana, India
| | - Sumeet Gupta
- Department of Pharmaceutical Sciences, M. M. College of Pharmacy, M. M. (Deemed to be University), Mullana, (Ambala), Haryana, India
| | - Deepak Kumar
- Department of Pharmaceutical Sciences, Indra Gandhi University, Mirpur, Rewari Haryana, India
| | - Saloni Kakkar
- Department of Pharmaceutical Sciences, Maharishi Dayanand University, Rohtak, Haryana, India
| | - Anroop Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Inderjeet Verma
- Department of Pharmaceutical Sciences, M. M. College of Pharmacy, M. M. (Deemed to be University), Mullana, (Ambala), Haryana, India
| | - Prerna Sharma
- Department of Pharmaceutical Sciences, M. M. College of Pharmacy, M. M. (Deemed to be University), Mullana, (Ambala), Haryana, India
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44
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Sapkal A, Kamble S. Greener and Environmentally Benign Methodology for the Synthesis of Pyrazole Derivatives. ChemistrySelect 2020. [DOI: 10.1002/slct.202003008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Aboli Sapkal
- Department of Chemistry Yashavantrao Chavan Institute of Science (Autonomous) Satara Maharashtra India
| | - Santosh Kamble
- Department of Chemistry Yashavantrao Chavan Institute of Science (Autonomous) Satara Maharashtra India
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45
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Microwave mediated lipase-catalyzed synthesis of n-butyl palmitate and thermodynamic studies. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101741] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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46
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Sarkate AP, Gavane DS, Kale BD, Karnik KS, Narula IS, Khandare AL, Rajhans AP, Jambhorkar VS. Microwave-Assisted Copper Slag-Catalyzed Green S-Arylation of Arenethiols with Arylboronic Acids. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s107042802007026x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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47
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Ghosh A, Chattopadhyay SK. Microwave-mediated Synthesis of Medium Ring-sized Heterocyclic Compounds. CURRENT MICROWAVE CHEMISTRY 2020. [DOI: 10.2174/2213335607666200226101602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Many medium ring-sized heterocyclic motifs are found in naturally occurring compounds
of significant biological activity which led to the investigation of the biological activity of simpler
heterocyclic compounds accommodating these ring systems. Therefore, the development of newer
synthetic methodologies to access such ring systems has remained an important activity over the last
few decades. However, common methods of their synthesis are usually associated with thermodynamic
disadvantages. Many metal-mediated transformations e.g., Heck reaction, Suzuki reaction, etc.
tend to overcome some of these effects but at the cost of environmental disadvantages. In recent
years, several green chemical techniques have found useful applications in the synthesis of such ring
systems. In particular, the use of microwave technology has provided better opportunities. The present
review attempts to highlight many synthetic approaches developed for the synthesis of such heterocyclic
scaffolds of pharmacological interest involving condensation reaction, coupling reaction,
Multi-component reaction, Cyclo-addition reaction, Dipolar cycloaddition reaction, etc. An emphasis
has also been given on the distinct advantages offered by microwave application over classical approaches,
wherever such knowledge is available.
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Affiliation(s)
- Amrita Ghosh
- Department of Chemistry, University of Kalyani Kalyani-741235, West Bengal, India
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48
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Banerjee B. Microwave-assisted Carbon-Carbon and Carbon-Heteroatom Bond Forming Reactions - Part 1B. CURRENT MICROWAVE CHEMISTRY 2020. [DOI: 10.2174/221333560702200714141435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Bubun Banerjee
- Department of Chemistry, Indus International University, V.P.O. Bathu, Distt. Una, Himachal Pradesh-174301, India
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Singh J, Lathwal A, Agarwal S, Nath M. Microwave-accelerated Approaches to Diverse Xanthenes: A Review. CURRENT MICROWAVE CHEMISTRY 2020. [DOI: 10.2174/2213335607999200417173336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Microwave-accelerated methods have emerged as powerful tools in organic synthesis to
enhance the reaction rates and provide products with high yields, improved selectivity, lower energy
consumption, mild reaction conditions and negligible waste generation. Xanthenes are an important
class of biologically important oxygen-containing heterocyclic molecules that possess a multitude of
pharmaceutical properties. By considering the medicinal and material significance of these molecules,
a large number of synthetic methodologies and catalytic systems have been reported for the synthesis
of a wide range of xanthenes in the past. However, the focus of the present review is to summarize
various microwave-assisted protocols for the synthesis of diversely substituted xanthene analogues.
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Affiliation(s)
- Jagmeet Singh
- Department of Chemistry, Faculty of Science, University of Delhi, Delhi-110 007, India
| | - Ankit Lathwal
- Department of Chemistry, Faculty of Science, University of Delhi, Delhi-110 007, India
| | - Shalini Agarwal
- Department of Chemistry, Faculty of Science, University of Delhi, Delhi-110 007, India
| | - Mahendra Nath
- Department of Chemistry, Faculty of Science, University of Delhi, Delhi-110 007, India
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50
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Yang Y, Fu R, Liu Y, Cai J, Zeng X. Microwave-promoted one-pot three-component synthesis of 2,3-dihydroquinazolin-4(1H)-ones catalyzed by heteropolyanion-based ionic liquids under solvent-free conditions. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131312] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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