Academic literature on the topic '1,3,4-Oxadiazoles'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic '1,3,4-Oxadiazoles.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "1,3,4-Oxadiazoles"
Vasiliev, N. V., Yu E. Lyashenko, A. E. Patalakha, and G. A. Sokolski. "Perfluoro 1,3,4-oxadiazoles." Journal of Fluorine Chemistry 58, no. 2-3 (August 1992): 375. http://dx.doi.org/10.1016/s0022-1139(00)80841-6.
Full textVasiliev, N. V., Yu E. Lyashenko, A. E. Patalakha, and G. A. Sokolski. "Perfluoro-1,3,4-oxadiazoles." Journal of Fluorine Chemistry 65, no. 3 (December 1993): 227–31. http://dx.doi.org/10.1016/s0022-1139(00)80860-x.
Full textHeimann, Dominik, Corinna Lueg, Henk de Vries, Bastian Frehland, Dirk Schepmann, Laura H. Heitman, and Bernhard Wünsch. "Bioisosteric replacement of central 1,2,4-oxadiazole ring of high affinity CB2 ligands by regioisomeric 1,3,4-oxadiazole ring." MedChemComm 8, no. 8 (2017): 1697–705. http://dx.doi.org/10.1039/c7md00296c.
Full textHanif, Muhammad, Khurram Shoaib, Muhammad Saleem, Nasim Hasan Rama, Sumera Zaib, and Jamshed Iqbal. "Synthesis, Urease Inhibition, Antioxidant, Antibacterial, and Molecular Docking Studies of 1,3,4-Oxadiazole Derivatives." ISRN Pharmacology 2012 (August 13, 2012): 1–9. http://dx.doi.org/10.5402/2012/928901.
Full textDkhar, Gatphoh, M. Vijay Kumar, and B. C. Revanasiddappa. "CHLORAMINE-T MEDIATED SYNTHESIS OF 1,3,4-OXADIAZOLE DERIVATIVES." INDIAN DRUGS 57, no. 07 (October 8, 2020): 74–76. http://dx.doi.org/10.53879/id.57.07.12224.
Full textStewart, Scott, Xiao-Feng Wu, Zhiping Yin, Dennis Power, and Zechao Wang. "Synthesis of 1,3,4-Oxadiazoles via Annulation of Hydrazides and Benzene-1,3,5-triyl Triformate under Metal-Free Conditions." Synthesis 50, no. 16 (April 16, 2018): 3238–42. http://dx.doi.org/10.1055/s-0037-1609481.
Full textRajak, Harish, Murli Dhar Kharya, and Pradeep Mishra. "Biologically Active 2,5-Disubstituted-1,3,4-Oxadiazoles." International Journal of Pharmaceutical Sciences and Nanotechnology 2, no. 1 (August 31, 2009): 390–406. http://dx.doi.org/10.37285/ijpsn.2009.2.1.2.
Full textMallikarjuna Reddy, Guda, Akkarapalli Muralikrishna, Venkatapuram Padmavathi, Adivireddy Padmaja, Thandaiah Krishna Tilak, and Chippada Appa Rao. "Synthesis and Antioxidant Activity of Styrylsulfonylmethyl 1,3,4-Oxadiazoles, Pyrazolyl/Isoxazolyl-1,3,4-oxadiazoles." Chemical and Pharmaceutical Bulletin 61, no. 12 (2013): 1291–97. http://dx.doi.org/10.1248/cpb.c13-00652.
Full textAjani, Olayinka Oyewale, and King T. Iyaye. "Recent advances on oxadiazole motifs: Synthesis, reactions and biological activities." Mediterranean Journal of Chemistry 10, no. 5 (May 12, 2020): 418. http://dx.doi.org/10.13171/mjc10502005121200ooa.
Full textBelen'kii, L. I., S. I. Luiksaar, I. S. Poddubnyi, and M. M. Krayushkin. "Novel syntheses of symmetrical 2,5-diaryl-1,3,4-oxadiazoles and 1,4-phenylenebis-1,3,4-oxadiazoles." Russian Chemical Bulletin 47, no. 11 (November 1998): 2238–45. http://dx.doi.org/10.1007/bf02494289.
Full textDissertations / Theses on the topic "1,3,4-Oxadiazoles"
Caneschi, Wiliam. "Síntese e avaliação biológica de 1,2,4- e 1,3,4-oxadiazóis." Universidade Federal de Juiz de Fora (UFJF), 2016. https://repositorio.ufjf.br/jspui/handle/ufjf/4086.
Full textApproved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-04-19T11:42:35Z (GMT) No. of bitstreams: 1 wiliamcaneschi.pdf: 24031147 bytes, checksum: 55a6b3c64e0dad5d05212886301c8aa2 (MD5)
Made available in DSpace on 2017-04-19T11:42:35Z (GMT). No. of bitstreams: 1 wiliamcaneschi.pdf: 24031147 bytes, checksum: 55a6b3c64e0dad5d05212886301c8aa2 (MD5) Previous issue date: 2016-12-20
CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Os heterociclos oxadiazólicos estão presentes em inúmeras estruturas com diversas propriedades biológicas, por esse motivo, o interesse nessa pesquisa. Desse modo, este trabalho encontra-se dividido em dois capítulos: o primeiro refere-se a síntese de oxadiazóis com intuito de verificar seu potencial biológico, enquanto o segundo, baseia-se no desenvolvimento de novas metodologias para síntese dos derivados 1,2,4 e 1,3,4oxadiazólicos. No primeiro capítulo, vinte e uma substâncias derivadas do heterociclo 1,2,4oxadiazólico foram obtidas por meio de reações de substituição nucleofilica de segunda ordem e trinta e dois novos derivados 1,3,4-oxadiazólicos foram obtidos a partir de reações do tipo Mannich. Os compostos foram testados quanto as suas propriedades citotóxicas e antibacteriana. De um modo geral, os derivados 1,2,4-oxadiazólicos não apresentaram interessantes atividades biológicas. Por outro lado, os regioisômeros 1,3,4- demonstraram um perfil de atividade interessante, sendo mais ativas que aquelas moléculas contendo o grupo piperazina alquilado com doze átomos de carbono. Para a atividade antitubercular, foi verificada uma melhor atividade para os 1,3,4-oxadiazóis alquilados com quatorze átomos de carbono. A busca cada vez maior por metodologias mais simples e eficientes na síntese de novas substâncias, propiciou, neste segundo capítulo, a síntese de uma série de derivados 1,2,4- e 1,3,4-oxadiazólicos obtidos por reações de aminocarbonilação catalisadas por paládio. Vários nucleófilos hidrazidas e amidoximas foram passíveis de reação com diferentes brometos de arila e monóxido de carbono produzido ex situ, em uma reação multicomponente, possibilitando a formação desses heterociclos em altos rendimentos. Essa metodologia se mostrou eficaz na marcação isotópica de ¹³C para diferentes compostos bem como permitiu a síntese do fármaco ataluren com rendimento global de 43%.
Oxadiazoles heterocycles are present in many structures with different biological properties, therefore, the interest in this research. So, this work is divided in two chapters: the first refers to the synthesis of these heterocycles in order to verify its biological potential, while the second is based on the development of new methodologies for synthesis of derivatives 1.2, 4 and 1,3,4-oxadiazoles. In the first chapter, twenty one 1,2,4-oxadiazoles derivatives were obtained by nucleophilic substitution reactions of second order and thirty two new 1,3,4oxadiazoles derivatives were obtained through Mannich-type reactions. The compounds were tested for their anticancer and antibacterial properties. In general, 1,2,4-oxadiazoles derivatives did not show interesting activity against the tested pathologies. On the other hand, 1,3,4-regioisomers demonstrated interesting activity profile, being most active those molecules containing the alkylated piperazine group with twelve carbons chain. For the antitubercular activity, a better activity was verified for the alkylated 1,3,4oxadiazoles with fourteen carbon chain. The search for efficient and simple methods for the synthesis of new molecules, allowed in the second chapter, the synthesis of a number of 1,2,4- and 1,3,4-oxadiazoles derivatives obtained by reactions palladium-catalyzed aminocarbonylation reactions. Various nucleophiles hydrazides and amidoximes were able of reaction with different aryl bromides and carbon monoxide produced ex situ in a multicomponent reaction, enabling the formation of such heterocycles in high yields. This methodology was effective for isotopic ¹³C labeling for different compounds as well as allowed the synthesis of the drug ataluren in an 43% overall yield.
Cauliez, Pascal. "Composés issus de l'acide pyroglutamique : hétérocyclisations de diacyl hydrazines polysilylées en oxadiazoles-1,3,4 et pyrrolidino triazinones-1,2,4." Lille 1, 1989. http://www.theses.fr/1989LIL10169.
Full textCaneschi, Wiliam. "Síntese e avaliação biológica de 1,3,4-oxadiazóis derivados da isoniazida." Universidade Federal de Juiz de Fora (UFJF), 2013. https://repositorio.ufjf.br/jspui/handle/ufjf/4646.
Full textApproved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-05-25T13:32:21Z (GMT) No. of bitstreams: 1 williamcaneschi.pdf: 11580354 bytes, checksum: d5186d98d0e023e595e7509f1a08efff (MD5)
Made available in DSpace on 2017-05-25T13:32:21Z (GMT). No. of bitstreams: 1 williamcaneschi.pdf: 11580354 bytes, checksum: d5186d98d0e023e595e7509f1a08efff (MD5) Previous issue date: 2013-02-22
CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Diversos análogos 1,3,4-oxadiazóis tem sido reportados na literatura uma vez que possuem grande espectro de atividade biológica, como: antiviral, antibacteriano, antitumoral, antioxidante, anti-inflamatório, anticonvulsivante, antimalarial, antifúngica e analgésica. Com o intuito de desenvolver moléculas ativas e seletivas a certas doenças, este trabalho descreve a síntese de derivados N-acilidrazonas e seus respectivos 2,3-diidro-1,3,4-oxadiazóis, o que resultou na obtenção de vinte e sete derivados inéditos, dentre eles: nove derivados de Nacilidrazonas e dezoito derivados 2,3-diidro-1,3,4-oxadiazóis. Foram obtidos vinte e oito derivados N-acilidrazonas a partir de uma reação de adição de aldeídos aromáticos e heteroaromáticos com a isoniazida. Para a obtenção das N-acilidrazonas com cadeia longa, foi proposto, inicialmente, a alquilação do 4-hidroxibenzaldeído com haletos de alquila com: 1-cloroexano, 1-cloro-octano, 1-bromononano, 1-clorodecano, 1-clorododecano, 1-lorotetradecano e 1-bromo-propargila. Foi proposta também a síntese de dois derivados sulfonados, sintetizados pela mesma metodologia de alquilação com os cloretos de mesila e tosila. Em seguida, os aldeídos alquilados e sulfonados sintetizados e dezenove aldeídos comerciais foram condensados a isoniazida gerando os derivados N-acilidrazonas, que por sua vez, foram ciclizados, em reação com anidrido acético, que gerou vinte e sete derivados 2,3-diidro-1,3,4-oxadiazólicos. As estruturas dos compostos obtidos foram elucidadas por espectroscopia na região do infravermelho, RMN de 1H e de 13C, técnicas de RMN 2D, espectrometria de massas. Os análogos oxadiazólicos foram submetidos a teste de citotoxicidade, antibacteriano, antioxidante e antimalarial. Os compostos se mostraram bastantes ativos contra células cancerígenas, com índices de seletividade superiores ao composto padrão utilizado.
Several analogs 1,3,4-oxadiazoles have been reported in the literature due to wide range biological activity, such as: antiviral, antibacterial, antitumoral, antioxidant, anti-inflammatory, anticonvulsivant, antimalarial, antifungal e analgesic activity. With the aim to develop molecules active and selective for some illness, this work describe the synthesis of some N-acyl-hydrazones derivatives and the respective 2,3-dihydro-1,3,4-oxadiazoles, that resulted the obtainment twenty seven inedited derivatives, among them: nine N-acyl-hydrazones derivatives and eighteen 2,3-dihydro-1,3,4-xadiazoles derivatives. At this work were obtainment twenty e eight N-acylhydrazones derivatives through the addition reaction of aromatics and heteroaromatics aldehydes with isoniazid. For the obtainment of N-acyl-hydrazones of long chain, the 4-hydroxybenzaldehyde was alkylated with several alkyl halides: 1-chlorohexane, 1-chlorooctane, 1-bromononane, 1-chlorodecane, 1-chlorododecane, 1-hlorotetradecane and 1-bromopropargyl. It was also proposed the synthesis of two sulfa derivatives, synthesized by the same alkylation methodology with the mesyl and tosyl chloride. These alkylated aldehydes and nineteen commercials aldehydes were condensed to the isoniazid that gave the N-acyl-hydrazones derivatives, which in turn were cyclized to obtain the 2,3-dihydro-1,3,4-oxadiazoles derivatives in reaction with acetic anhydride. The structures of the compounds were elucidated by in infrared, ¹H NMR, ¹³C NMR, 2D NMR techniques, mass spectrometry. The oxadiazoles analogs were submitted to citotoxicity, antibacterial, antioxidant and antimalarial activity. The compounds showed great activity against tumor cells, with selectivity index higher than standard compound used.
Rasras, Anas [Verfasser], and Sabine [Akademischer Betreuer] Amslinger. "Synthesis of biologically active enones: 2,3-dihydro-1,3,4-oxadiazoles, alpha-X-cyclopentenones and attempts towards limnophilaspiroketone and zerumbone / Anas Rasras. Betreuer: Sabine Amslinger." Regensburg : Universitätsbibliothek Regensburg, 2015. http://d-nb.info/1092188061/34.
Full textChang, Wei-En, and 張維恩. "The synthesis and the fluorescence spectra of 1,3,4-oxadiazoles and related compounds." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/33586363637803609692.
Full text國立中央大學
化學工程與材料工程研究所
91
1,3,4-oxadiazoles were prepared by 1,2-dibenzoylhydrazines and cyclodehydration in solution phase involving reagents (reagents = PPA、POCl3、BF3‧Et2O).Use suited cyclo-dehydration for each 1,2-dibenzoylhydrazine. The product which PET and ethylene glycol reacted to could be handle to be 1,2-dibenzoylhydrazine and cyclodehydration by PPA. It can be success to form 1,3,4-oxadiazole. The strong donor substitutent not only was shift the wavelength of fluorescent to longer wavelength but also increased the maximum strength. The compounds containing double 1,3,4-oxadiazole ring or double bonds were as same as the compounds containing strong donor substitutent. The compounds containing nitro substitutent didn’t affect the maximum uv absorption and The fluorescent wavelength very much,but shown very weak fluorescent strength. The fluorescent wavelength of the 1,3,4-oxadiazole compounds containing strong donor or acceptor substitutent didn’t fit the value caculated by the Pestemer rule(coefficient is 2.5).However,the fluorescent wavelength of the 1,3,4-oxadiazole compounds without substitutent or with weak or acceptor substitutent was equal to the value. Therefore,Pestemer rule was applied to the 1,3,4-oxadiazoles without substitutent or with weak or acceptor substitutent. Reactive dye could form a covalent bond with cotton in all saline solution. The product by coupling J-acid with triazine could react with 1,3,4-oxadiazole containing amino substitutent to form the dye containing 1,3,4-oxadiazoyl substitutent. The fluorscent of dye was lower than 1,3,4-oxadiazole containing amino substitutent,but it was higher than the dye by coupling J-acid with trazine.
Solařová, Hana. "Fosfinoferrocenové amidy a hydrazidy." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-297652.
Full textBook chapters on the topic "1,3,4-Oxadiazoles"
Simmons, Kirk A., Blaik P. Halling, Robert J. Schmidt, and Debra A. Witkowski. "2-(2′-Nitrophenyl)-1,3,4-oxadiazoles." In ACS Symposium Series, 236–46. Washington, DC: American Chemical Society, 1991. http://dx.doi.org/10.1021/bk-1991-0443.ch019.
Full textBehr, Lyell C. "1,3,4-Oxadiazoles: Ring Index 85." In Chemistry of Heterocyclic Compounds: A Series Of Monographs, 263–82. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470186787.ch10.
Full textBrovarets, V. S., O. P. Mityukhin, A. V. Golovchenko, and B. S. Drach. "Syntheses of Fluorinated 1,3-Oxazoles, 1,3,4-Oxadiazoles, 1,3,4-Thiadiazoles, and Oxazolo[4,5-d]pyrimidines." In ACS Symposium Series, 281–89. Washington, DC: American Chemical Society, 2009. http://dx.doi.org/10.1021/bk-2009-1003.ch013.
Full textWalczak, Krzysztof Z., and Wojciech Szczepankiewicz. "1,3,4-Oxadiazoles." In Reference Module in Chemistry, Molecular Sciences and Chemical Engineering. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-818655-8.00019-6.
Full textSuwiński, J., and W. Szczepankiewicz. "1,3,4-Oxadiazoles." In Comprehensive Heterocyclic Chemistry III, 397–466. Elsevier, 2008. http://dx.doi.org/10.1016/b978-008044992-0.00506-x.
Full textHill, John. "1,3,4-Oxadiazoles." In Comprehensive Heterocyclic Chemistry II, 267–87. Elsevier, 1996. http://dx.doi.org/10.1016/b978-008096518-5.00084-8.
Full textCurtis, A. D. M. "From 1,3,4-Oxadiazoles." In Five-Membered Hetarenes with Three or More Heteroatoms, 1. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-013-00885.
Full textStanovnik, B., and J. Svete. "Synthesis from 1,3,4-Oxadiazoles." In Five-Membered Hetarenes with Two Nitrogen or Phosphorus Atoms, 1. Georg Thieme Verlag KG, 2002. http://dx.doi.org/10.1055/sos-sd-012-00172.
Full textHeydt, H. "Of 2,5-Dihydro-1,3,4-oxadiazoles." In Heteroatom Analogues of Aldehydes and Ketones, 1. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00779.
Full text"Product Class 8: 1,3,4-Oxadiazoles." In Category 2, Hetarenes and Related Ring Systems, edited by Storr and Gilchrist. Stuttgart: Georg Thieme Verlag, 2004. http://dx.doi.org/10.1055/sos-sd-013-00323.
Full textConference papers on the topic "1,3,4-Oxadiazoles"
Slovesnova, N. V., I. S. Kovalev, D. S. Kopchuk, G. V. Zyryanov, O. N. Chupakhin, and A. Yu Petrov. "pH-color changing of 1,3,4-oxadiazoles." In PROCEEDINGS OF INTERNATIONAL CONFERENCE ON RECENT TRENDS IN MECHANICAL AND MATERIALS ENGINEERING: ICRTMME 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0018568.
Full textYarovenko, V., I. Zavarzin, and M. Krayushkin. "Convenient synthesis of 1,2,5-(1,3,4)-oxadiazolyl-1,2,4-oxadiazoles." In The 1st International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 1997. http://dx.doi.org/10.3390/ecsoc-1-02051.
Full textMartins, Bruna Simões, Elisiane Frantz Heck, Caroline Raquel Bender, Wolmar A. Severo Filho, Antonio L. Braga, Oscar E. Dorneles Rodrigues, and Luciano Dornelles. "Synthesis of 1,3,4-oxadiazoles derivatives from -amino acids and acyl hydrazides using microwave irradiation." In 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0364-1.
Full textRao, A. Tejeswara, A. Jaya Shree, A. Vijay Kumar Reddy, and Grigory V. Zyryanov. "Synthesis and molecular properties of novel fluoroquinolone citrate conjugates linked to 1,3,4-oxadiazoles as antibacterial and anticancer agents." In PROCEEDINGS OF INTERNATIONAL CONFERENCE ON RECENT TRENDS IN MECHANICAL AND MATERIALS ENGINEERING: ICRTMME 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0023473.
Full text