Academic literature on the topic 'Vilsmeier'

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Journal articles on the topic "Vilsmeier"

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Kumar, Ajay, Om Prakash, Mayank Kinger, and Shiv P. Singh. "Synthesis of some new 1-aryl-4-formyl-3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)pyrazoles using the Vilsmeier–Haack reaction — Isolation of the key intermediate 1-aryl-3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)pyrazoles." Canadian Journal of Chemistry 84, no. 3 (2006): 438–42. http://dx.doi.org/10.1139/v06-015.

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Arylhydrazones of dehydroacetic acid (DHA) underwent Vilsmeier–Haack reaction to generate the corresponding 1-aryl-4-formyl-3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)pyrazoles (1) with the pyrone moiety of the DHA remaining intact. However, when the reaction was performed using 1 equiv. of the reagent, compounds of 1-aryl-3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)pyrazoles (2a–2f) were obtained, which underwent smooth conversion to 1-aryl-4-formyl-3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)pyrazoles (1) on further treatment with another equivalent of the Vilsmeier–Haack reagent. This unreported
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Corbett, Michael, and Seb Caille. "A Bench-Stable Vilsmeier Reagent for in situ Alcohol Activation: Synthetic Application in the Synthesis of 2-Amino-2-Thiazolines." Synlett 28, no. 20 (2017): 2845–50. http://dx.doi.org/10.1055/s-0036-1589086.

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A robust, chemoselective direct condensation/cyclization of thioureas and amino alcohols is described. Employing a bench-stable Vilsmeier reagent, methoxymethylene-N,N-dimethyliminium methyl sulfate, the selective in situ activation of alcohols is achieved with high efficiency and broad functional-group tolerance. The reversible interaction of the Vilsmeier reagent with substrate was key to the success of this activation strategy.
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Guzmán, Angel, Moises Romero, and Joseph M. Muchowski. "Vilsmeier–Haack reaction with succinamidals. A convenient synthesis of 5-chloropyrrole-2-carboxaldehydes and 5-chloropyrrole-2,4-dicarboxaldehydes." Canadian Journal of Chemistry 68, no. 5 (1990): 791–94. http://dx.doi.org/10.1139/v90-125.

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It is shown that the reaction of N-alkylsuccinamidals (2) with the Vilsmeier–Haack reagent derived from DMF and phosphorus oxychloride can be controlled to preferentially produce either 5-chloropyrrole-2-carboxaldehydes (8) or 5-chloropyrrole-2,4-dicarboxaldehydes (9). The corresponding N-unsubstituted aldehydes are obtained when N-tert-butoxycarbonylsuccinamidal (11) is the substrate in the above reactions. Keywords: Vilsmeier–Haack reaction, succinamidals, 5-chloropyrrole-2-carboxaldehydes, 5-chloropyrrole-2,4-dicarboxaldehydes.
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Lu, Shi-Han, Po-Lin Liu, and Fung Fuh Wong. "Vilsmeier reagent-mediated synthesis of 6-[(formyloxy)methyl]-pyrazolopyrimidines via a one-pot multiple tandem reaction." RSC Advances 5, no. 58 (2015): 47098–107. http://dx.doi.org/10.1039/c5ra07707a.

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Bakhotmah, Dina A., Reda M. Abdul-Rahman, Mohammad S. Makki, Mohamed A. El-Zahabi, and Mansor Suliman. "Synthesis, Physiochemical Properties, Photochemical Probe, and Antimicrobial Effects of Novel Norfloxacin Analogues." ISRN Organic Chemistry 2011 (March 6, 2011): 1–11. http://dx.doi.org/10.5402/2011/184754.

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The emerging resistance to antimicrobial drugs demands the synthesis of new remedies for microbial infections. Attempts have been made to prepare new compounds by modifications in the quinolone structure. An important method for the synthesis of new quinolone is using Vilsmeier approach but has its own limitations. The present work aimed to synthesize novel norfloxacin analogues using modified Vilsmeier approach and conduct preliminary investigations for the evaluation of their physicochemical properties, photochemical probe, and antimicrobial effects. In an effort to synthesize norfloxacin an
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Flitsch, Wilhelm, Jürgen Lauterwein, Robert Temme, and Birgit Wibbeling. "An anomalous vilsmeier reaction." Tetrahedron Letters 29, no. 27 (1988): 3391–92. http://dx.doi.org/10.1016/0040-4039(88)85171-2.

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Awad, Ibrahim M. A., and Khairy M. Hassan. "Studies in Vilsmeier-Haack reaction: Reaction of 3-methyl-1-phenyl-4-arylidene-5-pyrazolone." Collection of Czechoslovak Chemical Communications 54, no. 3 (1989): 706–12. http://dx.doi.org/10.1135/cccc19890706.

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The 3-methyl group in Ia, b has been found to undergo diformylation by Vilsmeier reagent to give the aminoacrolein derivatives (IIa, b). Treatment of IIa, b with different reagents affords the related 1-phenyl-4-arylidene-5-pyrazolone derivatives with different heterocyclic systems in the 3-position. The Vilsmeier reaction on pyrazolopyrazole (XIII) have been utilized to prove chemically that new heterocyclic systems are formed only at the 3-position and no addition on the carbon-carbon double bond in the conjugated system O=C-C=C-(B) takes place.
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Ruberte, Ana Carolina, Carlos Aydillo, Arun K. Sharma, Carmen Sanmartín, and Daniel Plano. "Vilsmeier reagent, NaHSe and diclofenac acid chloride: one-pot synthesis of a novel selenoindolinone with potent anticancer activity." RSC Advances 10, no. 63 (2020): 38404–8. http://dx.doi.org/10.1039/d0ra07332f.

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Nasuhipur, Forough, Zarrin Ghasemi, Morgane Poupon, and Michal Dušek. "POCl3 mediated one-pot deoxygenative aromatization and electrophilic chlorination of dihydroxy-2-methyl-4-oxo-indeno[1,2-b]pyrroles." RSC Advances 13, no. 26 (2023): 17812–16. http://dx.doi.org/10.1039/d3ra02515b.

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Smetanin, N. V., S. A. Varenichenko, A. V. Kharchenko, O. K. Farat, and V. I. Markov. "Synthesis of new substituted pyridines via Vilsmeier-Haack reagent." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 1 (March 2023): 34–39. http://dx.doi.org/10.32434/0321-4095-2023-146-1-34-39.

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New substituted pyridines were synthesized by the reaction of spiroimidazolidinones with the Vilsmeier-Haack reagent (PBr3/DMF) with satisfactory yields. The reaction proceeds as an electrophilic trigger process according to the push-pull mechanism due to the anomeric effect of two nitrogen atoms with an increase in the primary heterocycle. An explanation is proposed for the different chemical behavior of 5',6',7',8'-tetrahydro-1'H-spiro[cyclohexane-1,2'-quinazolin]-4'(3'H)-one and spiroimidazolidinones under Vilsmeier-Haack reaction conditions. The likely reason is the hybridization of the am
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Dissertations / Theses on the topic "Vilsmeier"

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Willetts, S. E. "The reactions of modified Vilsmeier reagents." Thesis, Staffordshire University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370561.

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Simpson, Anthony Joseph. "Synthetic and mechanistic studies of Vilsmeier chemistry." Thesis, Northumbria University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385912.

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Goon, Simon. "Applications of the Vilsmeier reagent in synthesis." Thesis, University of Sunderland, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245363.

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Taylor, David Lawrence. "The Reverse Vilsmeier route to quinolinium salts and derivatives." Thesis, University of Sunderland, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294163.

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Mahmoud, Ahmed B. Abdelwahab. "Synthesis and reactivity of 3-acetyl-2-aminothiophenes." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0318/document.

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Un intérêt grandissant pour le système thiéno[2,3-b] pyridine est apparu ces trois dernières décennies. De nombreux chercheurs ont présentés des composés basés sur ce système comme traitement possible de l'anxiété et de la dépression, comme bactéricide, contre l'inflammation et la leishmania, la malaria et les maladies auto-immunes. Les ortho-amino acyl thiophènes sont des produits de départ possible pour synthétiser ces motifs. L'accès à ce type de composés sera la première étape de ce travail. Nous décrivons ici la première synthèse de 3-acétyl-2-aminothiophènes en utilisant la réaction à 3
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Shawcross, Andrew Paul. "The synthesis of novel heterocyclic compounds and observations on the Vilsmeier reaction." Thesis, University of Newcastle Upon Tyne, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328112.

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Cheng, Ying. "Part I: the 't-amino effect' in the Vilsmeier formylation of p-substituted tertiary anilines : part II: study of the chemistry of aminochlorocarbenes derived from Vilsmeier reagents by the action of bases." Thesis, University of Sunderland, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297371.

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Kashef, Hussein El. "Synthèse et étude physicochimique de nouveaux systèmes hétérocycliques : benzothiénopyrrolopyrazines, benzothiénopyrrolodiazépines et benzothiénopyrrolizines." Caen, 1994. http://www.theses.fr/1994CAEN4051.

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Le, Dréan Isabelle. "Synthèse et réactivité spécifique d'acroléines et d'énones possèdant un groupe trifluorométhyle." Lyon 1, 1993. http://www.theses.fr/1993LYO10199.

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Ce travail a necessite la synthese d'une part de derives d'acroleines et d'enones possedant un atome de chlore et un groupe trifluoromethyle en position beta, obtenus par reaction de vilsmeier sur des trifluoromethylcetones et d'autre part de trifluoromethylenones avec un atome de chlore en position beta, formees par trifluoromethylation d'acroleines puis oxydation de l'alcool. L'action de la potasse sur quelques aldehydes permet d'obtenir des trifluoromethylacetylenes et trifluoromethylalcenes. Differents nucleophiles ont ete additionnes sur ces trifluoromethylenones et acroleines conduisant
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Vilsmeier, Christian [Verfasser], and Walter [Akademischer Betreuer] Gubler. "A comparison of the real and non-archimedean Monge-Ampère operator / Christian Vilsmeier ; Betreuer: Walter Gubler." Regensburg : Universitätsbibliothek Regensburg, 2020. http://d-nb.info/1217481362/34.

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Books on the topic "Vilsmeier"

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R, Giles Paul, ed. Synthesis using Vilsmeier reagents. CRC Press, 1994.

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Marson, C. M. Synthesis Using Vilsmeier Reagents. Taylor & Francis Group, 2018.

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Marson, Charles M., and Paul R. Giles. Synthesis Using Vilsmeier Reagents. CRC Press, 2018. http://dx.doi.org/10.1201/9781351077071.

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Marson, C. M. Synthesis Using Vilsmeier Reagents. Taylor & Francis Group, 2018.

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Marson, C. M. Synthesis Using Vilsmeier Reagents. Taylor & Francis Group, 2018.

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Marson, C. M. Synthesis Using Vilsmeier Reagents. Taylor & Francis Group, 2018.

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Synthesis Using Vilsmeier Reagents. Taylor & Francis Group, 2017.

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Simpson, Anthony Joseph. Synthetic and mechanistic studies of Vilsmeier chemistry. 1994.

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Shawcross, Andrew Paul. The synthesis of novel heterocyclic compounds and observations on the Vilsmeier reaction. 1989.

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Book chapters on the topic "Vilsmeier"

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Laue, Thomas, and Andreas Plagens. "Vilsmeier-Reaktion." In Teubner Studienbücher Chemie. Vieweg+Teubner Verlag, 1994. http://dx.doi.org/10.1007/978-3-322-94015-5_102.

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Laue, Thomas, and Andreas Plagens. "Vilsmeier-Reaktion." In Teubner Studienbücher Chemie. Vieweg+Teubner Verlag, 1998. http://dx.doi.org/10.1007/978-3-322-94077-3_105.

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Laue, Thomas, and Andreas Plagens. "Vilsmeier-Reaktion." In Teubner Studienbücher Chemie. Vieweg+Teubner Verlag, 1994. http://dx.doi.org/10.1007/978-3-322-94726-0_102.

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Li, Jie Jack. "Vilsmeier—Haack reaction." In Name Reactions. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-05336-2_307.

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Li, Jie Jack. "Vilsmeier–Haack reaction." In Name Reactions. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-03979-4_279.

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Li, Jie Jack. "Vilsmeier-Haack-Reaktion." In Namensreaktionen. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-52850-7_154.

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Li, Jie Jack. "Vilsmeier—Haack reaction." In Name Reactions. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04835-1_295.

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Li, Jie Jack. "Vilsmeier– Haack reaction." In Name Reactions. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01053-8_260.

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Li, Jie Jack. "Vilsmeier-Haack Reaction." In Name Reactions. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-50865-4_154.

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Samsoniya, Sh A., M. V. Trapaidze, and N. N. Nikoleishvili. "Formation of Trimethine Cyanine of the Dipyrrolobenzoquinoxaline Series Under the Conditions of the Vilsmeier Reaction." In Advanced Polymer Structures. Apple Academic Press, 2023. http://dx.doi.org/10.1201/9781003352181-35.

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Conference papers on the topic "Vilsmeier"

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missoum, Hadjer, Yazid Datoussaid, and Noureddine Choukchou-braham. "synthesis of heterocycle via Vilsmeier-haack reaction." In The 24th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2020. http://dx.doi.org/10.3390/ecsoc-24-08101.

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Dambaev, Aleksandr V., Denis A. Kolesnik, Igor P. Yakovlev, and Tamara L. Semakova. "Formylation of 2-Methylpyrimidine-4,6-diol Under the Conditions of the Vilsmeier–Haack Reaction." In ECSOC 2024. MDPI, 2024. https://doi.org/10.3390/ecsoc-28-20128.

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Vinogradov, Andrey, and Vyacheslav Platonov. "Reactions of polyfluoroarylzinc compounds with Vilsmeier-Haack reagent; new synthesis of polyfluorinated aromatic aldehydes and acetales." In The 15th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2011. http://dx.doi.org/10.3390/ecsoc-15-00607.

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Tretyakova, E. V., E. V. Salimova, and L. V. Parfenova. "Synthesis of 7-formyl methyl abietate via Vilsmeier-Haack reaction and cytotoxic activity of abietane diterpene derivatives." In ACTUAL PROBLEMS OF ORGANIC CHEMISTRY AND BIOTECHNOLOGY (OCBT2020): Proceedings of the International Scientific Conference. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0069202.

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Ali, Tarik, Magdy Ibrahim, Eman El-Amin, and Zeinab El-Gendy. "4,6-Diacetylresorcinol in Heterocyclic Synthesis Part II: Vilsmeier-Haack Reactions of 4,6-Diacetylresorcinol and Its Schiff Bases and Hydrazones to Construct of New Substituted Pyrano[3,2-g]chromenes." In The 16th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2012. http://dx.doi.org/10.3390/ecsoc-16-01069.

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