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Relevant bibliographies by topics / Synthesis of benzoxazoles

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Academic literature on the topic 'Synthesis of benzoxazoles'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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Journal articles on the topic "Synthesis of benzoxazoles"

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Özil, Musa, and Emre Menteşe. "Microwave-assisted Synthesis of Benzoxazoles Derivatives." Current Microwave Chemistry 7, no. 3 (2020): 183–95. http://dx.doi.org/10.2174/2213335607999200518094114.

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Background: Benzoxazole, containing a 1,3-oxazole system fused with a benzene ring, has a profound effect on medicinal chemistry research owing to its important pharmacological activities. On the other hand, the benzoxazole derivative has exhibited important properties in material science. Especially in recent years, microwave-assisted synthesis is a technique that can be used to increase diversity and quick research in modern chemistry. The utilization of microwave irradiation is beneficial for the synthesis of benzoxazole in recent years. In this focused review, we provide a metaanalysis of

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Kumar, Dinesh, Santosh Rudrawar, and Asit K. Chakraborti. "One-Pot Synthesis of 2-Substituted Benzoxazoles Directly from Carboxylic Acids." Australian Journal of Chemistry 61, no. 11 (2008): 881. http://dx.doi.org/10.1071/ch08193.

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Methanesulfonic acid has been found to be a highly effective catalyst for a convenient and one-pot synthesis of 2-substituted benzoxazoles by the reaction of 2-aminophenol with acid chlorides, generated in situ from carboxylic acids. Aryl, heteroaryl, and arylalkyl carboxylic acids provided excellent yields of the corresponding benzoxazoles. The reaction conditions were compatible with various substituents such as chloro, bromo, nitro, methoxy, cyclopentyloxy, phenoxy, thiophenoxy, and conjugated double bonds. Benzoxazole formation was found to be general with respect to substituted 2-aminophe

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Staniszewska, Monika, Łukasz Kuryk, Aleksander Gryciuk, et al. "In Vitro Anti-Candida Activity and Action Mode of Benzoxazole Derivatives." Molecules 26, no. 16 (2021): 5008. http://dx.doi.org/10.3390/molecules26165008.

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A newly synthetized series of N-phenacyl derivatives of 2-mercaptobenzoxazole, including analogues of 5-bromo- and 5,7-dibromobenzoxazole, were screened against Candida strains and the action mechanism was evaluated. 2-(1,3-benzoxazol-2-ylsulfanyl)-1-(4-bromophenyl)ethanone (5d), 2-(1,3-benzoxazol-2-ylsulfanyl)-1-(2,3,4-trichloro-phenyl)ethanone (5i), 2-(1,3-benzoxazol-2-ylsulfanyl)-1-(2,4,6-trichlorophenyl)ethanone (5k) and 2-[(5-bromo-1,3-benzoxazol-2-yl)sulfanyl]-1-phenylethanone (6a) showed anti-C. albicans SC5314 activity, where 5d displayed MICT = 16 µg/mL (%R = 100) and a weak anti-prol

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Arisoy, Mustafa, Ozlem Temiz-Arpaci, Fatma Kaynak-Onurdag, and Selda Ozgen. "Synthesis and Antimicrobial Evaluation of 2-(p-Substituted Phenyl)-5-[(4-substituted piperazin-1-yl)acetamido]-benzoxazoles." Zeitschrift für Naturforschung C 69, no. 9-10 (2014): 368–74. http://dx.doi.org/10.5560/znc.2014-0024.

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Abstract series of 2-(p-substituted phenyl)-5-(2-{4-[(p-chloro-fluorophenyl)=phenyl] piperazin-1-yl}- acetamido)-benzoxazoles were synthesized and tested for their antimicrobial activities. The structures of the new derivatives were elucidated by spectral techniques. The minimum inhibitory concentrations (MIC) of the new benzoxazoles, along with those of previously synthesized analogues, were determined against standard bacterial and fungal strains and drug-resistant isolates, and compared with those of several reference drugs. The new benzoxazole derivatives were found to possess a broad spec

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Glamočlija, Una, Subhash Padhye, Selma Špirtović-Halilović, et al. "Synthesis, Biological Evaluation and Docking Studies of Benzoxazoles Derived from Thymoquinone." Molecules 23, no. 12 (2018): 3297. http://dx.doi.org/10.3390/molecules23123297.

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Thymoquinone (TQ), a natural compound with antimicrobial and antitumor activity, was used as the starting molecule for the preparation of 3-aminothymoquinone (ATQ) from which ten novel benzoxazole derivatives were prepared and characterized by elemental analysis, IR spectroscopy, mass spectrometry and NMR (1H, 13C) spectroscopy in solution. The crystal structure of 4-methyl-2-phenyl-7-isopropyl-1,3-benzoxazole-5-ol (1a) has been determined by X-ray diffraction. All compounds were tested for their antibacterial, antifungal and antitumor activities. TQ and ATQ showed better antibacterial activit

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Aruna, G., Ravindra Kulkarni, Baswaraj Machaa, Malathi Jojula, Shravan Gunda, and G. Achaiah. "Design, Synthesis and Evaluation of Aryloxybenzylidene Hydrazinyl-Benzoxazoles/Benzothiazoles Analogs as Antimycobacterial Agents." Asian Journal of Organic & Medicinal Chemistry 5, no. 3 (2020): 185–91. http://dx.doi.org/10.14233/ajomc.2020.ajomc-p272.

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Substituted 2-(2-(4-aryloxybenzylidene)hydrazinyl)benzothiazole/benzoxazoles series were designed through molecular hybridization and synthesized in condensation reaction of hydrazinylbenzothiazole/ benzoxazole with substituted aryloxy benzaldehydes. All the synthesized compounds were assigned structure based on spectral data and were evaluated for antimycobacterial activity. Among both benzothiazole and benzoxazole derivatives, the compounds 8f and 9e were found to show most potent antitubercular activity with MIC value of 0.89 and 0.92 μM which are on a par with those of standard antitubercu

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Imramovsky, Ales, Jan Kozic, Matus Pesko, et al. "Synthesis and Antimycobacterial and Photosynthesis-Inhibiting Evaluation of 2-[(E)-2-Substituted-ethenyl]-1,3-benzoxazoles." Scientific World Journal 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/705973.

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A series of twelve 2-[(E)-2-substituted-ethenyl]-1,3-benzoxazoles was designed. All the synthesized compounds were tested against three mycobacterial strains. The compounds were also evaluated for their ability to inhibit photosynthetic electron transport (PET) in spinach (Spinacia oleraceaL.) chloroplasts. 2-[(E)-2-(4-Methoxyphenyl)ethenyl]-1,3-benzoxazole, 2-[(E)-2-(2,3-dihydro-1-benzofuran-5-yl)ethenyl]-1,3-benzoxazole and 2-{(E)-2-[4-(methylsulfanyl)phenyl]ethenyl}-1,3-benzoxazole showed the highest activity againstM. tuberculosis,M. kansasii,andM. avium, and they demonstrated significantl

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Malakar, Chandi, Nagaraju Vodnala, Raghuram Gujjarappa, Arup Kabi, Mohan Kumar, and Uwe Beifuss. "Facile Protocols towards C2-Arylated Benzoxazoles using Fe(III)-Catalyzed C(sp 2-H) Functionalization and Metal-Free Domino Approach." Synlett 29, no. 11 (2018): 1469–78. http://dx.doi.org/10.1055/s-0037-1609718.

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Considering their growing attention in the field of medicinal chemistry and drug-discovery research, the facile and convenient approaches towards the preparation of 2-aryl benzoxazole derivatives have been described. The transformation is accomplished by using Fe(III)-catalyzed C–H activation of benzoxazoles with boronic acids to obtain a wide range of C2-arylated benzoxazoles in high yields. The developed method excludes the formation of self-coupling compounds as side products. On the other hand, the synthesis of the products is also achieved via a metal-free domino protocol by the reaction

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M, Jyothi, and Ramchander Merugu. "AN UPDATE ON THE SYNTHESIS OF BENZOXAZOLES." Asian Journal of Pharmaceutical and Clinical Research 10, no. 10 (2017): 48. http://dx.doi.org/10.22159/ajpcr.2017.v10i10.19457.

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Benzoxazoles being structurally similar to bases adenine and guanine interact with biomolecules present in living systems. These compounds possess antimicrobial, central nervous system activities, antihyperglycemic potentiating activity, analgesic, and anti-inflammatory activity. It can also be used as starting material for other bioactive molecules. Modifications in structure and the biological profiles of new generations of benzoxazoles were found to be more potent with enhanced biological activity. Considering all these, we have prepared this review and discussed the synthesis and biologica

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Kale, Dolly, Gajanan Rashinkar, Audumbar Patil, Arjun Kumbhar, and Rajashri Salunkhe. "Facile Access to 2-Substituted Benzoxazoles Using Sawdust Supported N-Heterocyclic Carbene-Ni Complex via C-H Activation." Letters in Organic Chemistry 17, no. 6 (2020): 479–89. http://dx.doi.org/10.2174/1570178616666190705153927.

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Sawdust supported N-heterocyclic carbene-nickel complex has been prepared by covalent grafting of 1-methyl imidazole in the matrix of chloropropyl modified sawdust followed by reaction with nickel acetate. The resultant NHC-Ni complex was employed as a heterogeneous catalyst for the synthesis of 2-substituted benzoxazoles from benzoxazole and aryl boronic acids following C-H activation strategy. The recycling experiments showed that the complex could be reused for five consecutive runs without significant loss in the yield of products.

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Dissertations / Theses on the topic "Synthesis of benzoxazoles"

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Hutson, Leslie K. "Synthesis of Benzoxazoles Containing Allyl Crosslinking Sites via Claisen Rearrangements." Wright State University / OhioLINK, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=wright974400715.

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Kleinhans, Dewald Johannes. "Studies in the synthesis of benzoxazole compounds." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97900.

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Thesis (PhD)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Benzoxazoles are an important class of π-electron-excessive, benzene-fused heterocyclic compounds found in natural products and display a wide range of pharmacological applications. It is therefore a widely used starting scaffold for drug and agrochemical discovery programs. Other applications include: chiral auxiliaries in asymmetric reactions, chiral receptors for the resolution of racemic mixtures, fluorescent whitening dyes, various photochromic materials and as ligands for a wide range of catalytic reactions. Due to ou

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Park, Joonwon. "Synthesis and molecular control of star-like poly-2,4-benzoxazole." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/8656.

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Avant, Lavern Marshall. "Synthesis and characterization of a cross-digitated poly (2,5-Benzoxazole) (ABPBO)." Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/8464.

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Bi, Xiaoman bi. "Synthesis and Characterization of Novel Fluorescent Sensors Based on Terpyridine, Benzoxazole and Benzothiazole Chromophores." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1512743963248758.

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Njaria, Paul Magutu. "Antimycobacterial 2-aminoquinazolinones and benzoxazole-based oximes: synthesis, biological evaluation, physicochemical profiling and supramolecular derivatization." Doctoral thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/26954.

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Tuberculosis (TB) is a life-threatening infectious disease caused by Mycobacterium tuberculosis (Mtb). Globally, TB is a major public health burden with an estimated 10.4 million new cases and 1.8 million deaths reported in 2015. Although TB is curable, the treatment options currently available are beset by numerous shortcomings such as lengthy and complex treatment regimens, drug-drug interactions, drug toxicities, as well as emergence of widespread multi-drug resistance. Therefore, there is an urgent and compelling need to develop new, more effective, safer drugs with novel mechanisms of act

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Luo, Guo-Wei, and 羅國瑋. "Synthesis and Properties of Poly(benzoxazole-imide)Copolymer/Clay Nanocomposites." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/76168487506357286813.

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碩士<br>國立成功大學<br>材料科學及工程學系碩博士班<br>92<br>Poly(benzoxazole-imide) (PBO-PI) copolymer/clay nanocomposites have been prepared from a PBO-PI precursor－poly(hydroxyamide-amic acid) (PHA-PAA) and two different organoclays. The PBO-PI precursor was made by a polycondensation reaction between 2,2-bis(3-amino-4-hydroxyphenol) hexafluoropropane (BisAPAF), 4,4-oxydiphthalic anhydride (ODPA) and isophthaloyl dichloride (IC). The organoclays were formed by a cation exchange reaction between a Na+-montmorillonite clay and an ammonium salt of dodecylamine (DOA) or 4-phenoxyaniline (POA). The glass transition t

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Chang, Ying-Ching, and 張孆璟. "Synthesis of Anticacer Bis (benzimidazoles) Library and Benzimidazolyl benzoxazole Related to UK-1." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/8s3bfm.

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Chen, Tai-an, and 陳泰安. "Synthesis and Characterization of New Polyimides Containing Pendent Benzimidazoles Groups and Polybenzimidazoles Containing Pendent Benzoxazole Groups." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/93346838677936173720.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>102<br>Part 1 A series of new polyimides (PIs) with pendant benzimidazole had been synthesized. They had inherent viscosities in the range of 0.96~1.20 dLg-1, and they could form tough and flexible films. The PIs exhibited high thermal stability with 10% decomposition temperature more than 500℃ in nitrogen, and their and soft temperature around 300℃. These films exhibited good mechanical properties with tensile stress exceeded 132 MPa.However,the mechanical properties of phosphoric acid doped PI significantly decreased. The mechanical properties of crosslinked polyim

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Chen, Szu-Yuan, and 陳思源. "Synthesis and Characterization of New Polybenzimidazoles Containing Pendent Benzoxazole Groups for Proton Exchange Membrane Fuel Cell at Intermediate Temperature." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/19376040315169121072.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>101<br>A series of new polybenzimidazoles (PBIs) with pendant heterocyclic ring have been synthesized. The resulting polymers showed good solubility in aprotic solvents. They had inherent viscosities in the range of 0.92~1.9 dLg-1, and they could form tough and flexible films. They exhibited high thermal stability with initial decomposition temperature ranging from 653 to 705 in nitrogen, and their glass transition temperature around 300℃. These films exhibited good mechanical properties with tensile stress exceeded 94.5 MPa. Phosphoric acid (PA) doped PBI was swolle

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Book chapters on the topic "Synthesis of benzoxazoles"

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Wang, Fengjiang, and James R. Hauske. "Solid-Phase Synthesis of Benzoxazoles via Mitsunobu Reaction." In Solid-Phase Organic Syntheses. John Wiley & Sons, Inc., 2001. http://dx.doi.org/10.1002/0471220434.ch7.

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Neelima, G., K. Lakshmi, and K. Sesha Maheswaramma. "In Silico Studies of Benzoxazole Derivatives Using Ferrite-L-cysteine Magnetic Nanoparticles: Green Synthesis." In Special Publications. Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781839160783-00288.

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Unger, Thomas A. "Benzoxazoles benzoxazolines benzoxazolinones benzoxazolones." In Pesticide Synthesis Handbook. Elsevier, 1996. http://dx.doi.org/10.1016/b978-081551401-5.50339-7.

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Block, E. "Synthesis from 2-[(3-Hydroxyalkyl)selanyl]benzoxazoles." In Sulfur, Selenium, and Tellurium. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-01367.

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DeRosa, Thomas F. "Benzoxazoles." In Advances in Synthetic Organic Chemistry and Methods Reported in US Patents. Elsevier, 2006. http://dx.doi.org/10.1016/b978-008044474-1/50019-0.

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Kantlehner, W. "Synthesis from Benzoxazole-2-thiones." In Three Carbon-Heteroatom Bonds: Ketenes and Derivatives. Georg Thieme Verlag KG, 2006. http://dx.doi.org/10.1055/sos-sd-024-00421.

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List, B., C. Chandler, R. R. Torres, and A. Erkkilä. "Synthesis from 2-(Methylsulfanyl)benzoxazole." In X-Ene-X (X=F, Cl, Br, I, O, S, Se, Te, N, P), Ene-Hal, and Ene-O Compounds. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-032-00279.

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Schnrch, M., J. Hmmerle, and P. Stanetty. "Synthesis of Benzoxazole-2(3)-thiones." In Science of Synthesis Knowledge Updates KU 2011/1. Georg Thieme Verlag KG, 2010. http://dx.doi.org/10.1055/sos-sd-111-00428.

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"Chapter 8 Oxazoles and benzoxazoles." In Palladium in heterocyclic chemistry - A guide for the synthetic chemist. Elsevier, 2000. http://dx.doi.org/10.1016/s1460-1567(00)80012-4.

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Balasubramanian, Marudai. "Chapter 8 Oxazoles and benzoxazoles." In Palladium in Heterocyclic Chemistry - A Guide for the Synthetic Chemist. Elsevier, 2007. http://dx.doi.org/10.1016/s1460-1567(07)80057-2.

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Conference papers on the topic "Synthesis of benzoxazoles"

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Jampilek, Josef, Jarmila Vinsova, Tatjana Grafnetterova, and Jiri Dohnal. "Synthesis and Hydrophobic Properties of Benzoxazoles." In The 9th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2005. http://dx.doi.org/10.3390/ecsoc-9-01466.

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Seijas, Julio, M. Vázquez-Tato, M. Carballido-Reboredo, and José Crecente-Campo. "P2S5 Mediated Synthesis of Benzoxazoles and Benzothiazoles by Microwave Irradiation." In The 9th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2005. http://dx.doi.org/10.3390/ecsoc-9-01642.

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Vinšová, Jarmila, Václav Horák, Vladimír Buchta, and Jarmila Kaustová. "Highly Lipophilic Benzoxazoles with Potential Antibacterial Activity." In The 8th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2004. http://dx.doi.org/10.3390/ecsoc-8-01977.

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Affeldt, Ricardo F., Dennis Russowsky, and Fabiano S. Rodembusch. "Novel Photoactive N-Heterocycles Bearing a Benzoxazole Moiety: Synthesis and Photophysical study." In 14th Brazilian Meeting on Organic Synthesis. Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0156-1.

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Ha, Sie-Tiong, and Kok-Leei Foo. "New thermotropic liquid crystals with benzoxazole core." In The 15th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2011. http://dx.doi.org/10.3390/ecsoc-15-00747.

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Soares, Ana, Susana Costa, and M. Sameiro Gonçalves. "Benzoxazole Derivatives as Phototriggers for the Release of Butyric Acid." In The 18th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2014. http://dx.doi.org/10.3390/ecsoc-18-a034.

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