Relevant bibliographies by topics / Tosylhydrazine

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters

Academic literature on the topic 'Tosylhydrazine'

Author: Grafiati
Published: 7 June 2025
Last updated: 16 July 2025

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Journal articles on the topic "Tosylhydrazine"

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Yamasaki, Naoto, Marina Kanno, Kyohei Sakamoto, Yusuke Kasai, Hiroshi Imagawa, and Hirofumi Yamamoto. "m-C2B10H11HgCl/AgOTf-Catalyzed Reaction for Reductive Deoxygenation." Synlett 29, no. 02 (2017): 169–75. http://dx.doi.org/10.1055/s-0036-1588554.

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A m-C2B10H11HgCl/AgOTf-catalyzed reaction of allyl silyl ethers with N-Boc-N′-tosylhydrazine has been developed. Under mild conditions, the resulting allyl hydrazine products were transformed into naked alkenes in good yield. Furthermore, the used m-C2B10H11HgCl could be recovered quantitatively.
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Pramanik, Sayan, and Chhanda Mukhopadhyay. "Tosylhydrazine-promoted self-conjugate reduction–Michael/aldol reaction of 3-phenacylideneoxindoles towards dispirocyclopentanebisoxindole derivatives." Beilstein Journal of Organic Chemistry 18 (April 27, 2022): 469–78. http://dx.doi.org/10.3762/bjoc.18.49.

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An efficient tosylhydrazine-mediated conjugate reduction of 3-phenacylideneoxindole and sequential Michael/intramolecular aldol reaction is reported under base-catalyzed conditions towards the formation of densely substituted dispirocyclopentanebisoxindole derivatives. The reaction proceeded in a diastereoselective manner to afford four chiral stereocenters. The method also has advantages of wide substrate scope, readily available starting materials and operational simplicity through one pot reaction.
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Leelakumar, N., V. Nagapurnima, Gowd V. Suresh, B. V. Durga Rao, and Lakshman Shaik. "Bioactive and Solvent Free Synthesis of 5-phenyl-3-(Trifluoromethyl)-1H-pyrazole." Research Journal of Chemistry and Environment 26, no. 10 (2022): 117–22. http://dx.doi.org/10.25303/2610rjce1170122.

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The biological activities associated with 5-phenyl-3-(Trifluoromethyl)-1H-pyrazole, the synthesis, spectro- scopic identification and antibacterial activity of 5-phenyl-3-(Trifluoromethyl)-1H-pyrazole analogues (4a-4l) were obtained from substituted aromaticaldehyde, tosylhydrazine with 2-bromo-3,3,3-trifluoro prop-1-ene in the presence of in alcoholic medium using DABCO as a catalyst. The title compounds were evaluated by spectroscopic techniques such as 1HNMR, 13CNMR, LCMS and elemental analysis. The tested compounds were examined for antibacterial activity against gram positive and gram neg
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Iwadare, Tsukasa, Yoshiyuki Ichinohe, and Kazuhiko Orito. "Decomposition of tosylhydrazones of benzoin, benzoin acetate, and benzoin benzoate with alkali and metal complex hydrides." Canadian Journal of Chemistry 74, no. 2 (1996): 227–31. http://dx.doi.org/10.1139/v96-025.

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Treatment of tosylhydrazones of benzoin, benzoin acetate, and benzoin benzoate with alkali under protic and aprotic conditions yielded diphenyl acetylene together with desoxybenzoin. An increase in leaving aptitude of the adjacent group enhanced the formation of diphenyl acetylene. By treatment with LiAlH4 and with NaBH4, the tosylhydrazones gave stilbenes in good yields. Selective formation of cis- or trans-stilbene was observed in some cases. Key words: tosylhydrazone, benzoin derivatives, decomposition, metal complex hydrides.
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Kamijo, Shin, Mohammad Al-Masum, and Yoshinori Yamamoto. "Palladium catalyzed hydrosulfination of allenes with tosylhydrazine leading to allylsulfones." Tetrahedron Letters 39, no. 7 (1998): 691–94. http://dx.doi.org/10.1016/s0040-4039(97)10637-2.

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Adéyolé, TIMOTOU, Yves Guillaume MOLOU Kouassi, Simplice ZOAKOUMA Pépin, et al. "Design, Synthesis of Novel Benzylidenehydrazone Derivatives." Pharmaceutical and Chemical Journal 9, no. 6 (2022): 36–42. https://doi.org/10.5281/zenodo.13981753.

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This article describes the synthesis of new benzylidenehydrazone derivatives (<strong>4a-c</strong>). These compounds were synthesized by first designing N-substituted benzaldehyde derivatives (<strong>3a-c</strong>) through the action of cyclic amine with 2-chloro-5-nitrobenzaldehyde (<strong>2)</strong>. Condensation of these aldehydes (<strong>3a-c</strong>) with tosylhydrazine led to hydrazones derivatives (<strong>4a-c</strong>). The structures of these compounds were characterized by <sup>1</sup>H, <sup>13</sup>C Nuclear Magnetic Resonance (NMR) spectroscopy, and High-Resolution Mass Spe
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Roy, Saikat, and Ashwini Nangia. "p-Tosylhydrazine: a redetermination from single-crystal data at 100 K." Acta Crystallographica Section E Structure Reports Online 63, no. 9 (2007): o3696. http://dx.doi.org/10.1107/s1600536807037518.

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AVDEENKO, A. P., and N. I. EVGRAFOVA. "ChemInform Abstract: Reaction of N-Arylsulfonyl-1,4-naphthoquinon-4-imines with Tosylhydrazine." ChemInform 24, no. 31 (2010): no. http://dx.doi.org/10.1002/chin.199331148.

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KAMIJO, S., M. AL-MASUM, and Y. YAMAMOTO. "ChemInform Abstract: Palladium-Catalyzed Hydrosulfination of Allenes with Tosylhydrazine Leading to Allylsulfones." ChemInform 29, no. 18 (2010): no. http://dx.doi.org/10.1002/chin.199818110.

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Zhou, Lei, Zhenxing Liu, Yizhou Liu, Yan Zhang, and Jianbo Wang. "N-Tosylhydrazine-mediated deoxygenative hydrogenation of aldehydes and ketones catalyzed by Pd/C." Tetrahedron 69, no. 30 (2013): 6083–87. http://dx.doi.org/10.1016/j.tet.2013.05.070.

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Dissertations / Theses on the topic "Tosylhydrazine"

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Roche, Maxime. "Couplages pallado-catalysés de N-tosylhydrazones : synthèse d’oléfines apparentées à l’isocombrétastatine A4." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA114843.

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Les travaux rapportés dans ce mémoire concernent le développement de nouveaux couplages pallado-catalysés de N-tosylhydrazones ainsi que leurs applications à la synthèse d’analogues de l’isocombrétastatine A4 (isoCA-4). La première partie du manuscrit est consacrée à l’étude de la réactivité de N-tosylhydrazones encombrées dans les couplages avec des halogénures d’aryle. Des conditions ont été mise au point afin d’avoir accès à des molécules 1,1-diaryléthylène ortho/ortho’-disubstituées en relation avec l’isoCA-4. Une autre partie de ce travail est dédiée au développement de réactions tandem i
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Aziz, Jessy. "Réactivités de N-Tosylhydrazones : application à la Synthèse d’Analogues de l’isoCombrétastatine A-4." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA114839.

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Les travaux rapportés dans ce mémoire concernent le développement de la réactivité de N-tosylhydrazones dans la création de liaisons carbone-carbone et carbone-azote ainsi que leurs applications à la synthèse des analogues de l’isocombrétastatine A-4 (isoCA-4), aux propriétés antivasculaires.Au cours de ce travail, des molécules de type 1,1-diaryléthylène furent synthétisées par un couplage pallado-catalysé entre des N-tosylhydrazones et des aryles halogénés. Ainsi, des oléfines polysubstituées avec un motif alcoxyle, analogues de l’isoCA-4, ont présenté des activités biologiques intéressantes
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Lawson, Marie. "Recherche de nouveaux ligands du site de la colchicine : Modélisation moléculaire, synthèse et évaluation biologique." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLS069.

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Dans le cadre de cette thèse nous nous intéressons à la découverte de nouveaux ligands originaux de la tubuline ayant une activité inhibitrice de sa polymérisation. Pour ce faire, une étude rationnelle in silico est effectuée afin d’obtenir des molécules actives in vitro sur cette protéine. Lors de cette première année de thèse nous avons mis en place en collaboration avec l’équipe de modélisation de BioCIS – CNRS (Dr. G. Bernadat et Pr. T. Ha-Duong) un criblage virtuel sur une chimiothèque de plus de 3 millions de structures chimiques présentes dans la base de données ZINC en fonction de desc
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Kamga, Mark-Henry Mbahmi. "Novel Strategy for the Synthesis of Allenes." Digital Commons @ East Tennessee State University, 2009. https://dc.etsu.edu/etd/1797.

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Allenes are very important chemical reagents in organic synthesis. Due to their high reactivity, they have been extensively used to carry out a variety of unique and effective chemical transformations including but not limited to ionic and free radical additions and transition metal catalyzed cyclizations. As the chemistry of this group of compounds is explored further and their applications expanded there is a need to develop alternative and cost effective methods for their synthesis. Our approach involves the synthesis of allenes from oxa-bicyclo-alkan-2-ones by methyllithium induced Eschenm
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Naret, Timothée. "Réactions de couplage pallado-catalysées entre des N-tosylhydrazones et des hétérocycles : application à la synthèse d'analogues de l'isoCombretastatine A-4." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS443.

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Les travaux rapportés dans ce manuscrit de thèse concernent la synthèse et l'évaluation biologique d'analogues de la Combretastatine A-4, un produit naturel aux propriétés antivasculaire et cytotoxique. Pour cela, deux thématiques ont été abordées.D'un côté, des études méthodologiques autours de couplages pallado-catalysés entre des N-tosylhydrazones et des halogénures d'aryle et d'hétéroaryle ont été réalisées dans le but de fournir des outils synthétiques nécessaires à la préparation de librairies de molécules. Ces études ont conduit à la synthèse one-pot de 5-(1-arylvinyl)benzimidazoles à p
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Bzeih, Tourin. "Methodologies involving N-tosylhydrazones for the synthesis of new isocombretastatin A-4 analogs, and the synthesis of thiazole derivatives for antitumor application." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS488.

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Ce document de thèse est divisé en deux parties indépendantes, la première partie décrit la synthèse et l'évaluation biologique de nouveaux analogues du composé anti-vasculaire, l'isocombretastatine A-4. Ce travail se situe à l'interface entre la chimie et la biologie.Des réactions séquentielles monotopes mettant en œuvre des réactions de couplage pallado-catalysées entre des N-tosylhydrazones et divers bromure de nitro-aryles et bromure de nitro-biaryles suivies d'une cyclisation réductrice ont conduit à la synthèse d’une chimiothèque d'indoles C2-, C3-, N-aryles et des carbazoles de vinyle a
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Peng, Shao-Yu, and 彭韶郁. "A New Synthesis of Acylhydrazine and Tosylhydrazine." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/89534410824759746348.

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Jiun-Min, Lai, and 賴俊敏. "Photochemical decomposition of cyclopentylideneacetaldehyde tosylhydrazone." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/33455747471519981384.

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碩士<br>靜宜大學<br>應用化學系<br>82<br>Cyclopentylideneacetaldehyde tosylhydrazone在鹼性溶液中會先形成 diazo化合物, 再經直接照光後, 會產生三種重排產物即spiro[2.4]he- pt-1-ene, 1-vinylcyclopentene和vinylidenecyclopentane。這些重排 產物經實驗後發現可能是經由二個競爭性途徑而產生的, 其主要途 徑(64%)可能是來自於diazo excited state(單重激發態)經失去氮後, 直 接產生重排, 另一個次要途徑(36%)可能是來自於此diazo(單重激發態)脫 去氮, 先形成viynlcarbene(基底態)後, 再經環化及1,2-H shift或1,4- H shift所得到之產物。整個反應機構可藉由[Re]/[Ad] vs 1/[alkene]作 圖所得之線性關係,來加以說明。 In base solution cyclopentylideneacetaldehyde tosy
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陳似鮮. "Cyclopentylideneacetaldehyde tosylhydrazone:base induced photochemistry and thermolysis reaction of cyclopentylideneacetaldehyde tosylhydrazone." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/36396881783423466765.

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Patapas, Joseph. "The photolytic deprotection of aliphatic ketones from tosylhydrazones." Thesis, 2002. http://spectrum.library.concordia.ca/2150/1/MQ77948.pdf.

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Ketones are amongst the most important and versatile groups of chemicals known, with applications in industry as solvents and starting materials, as well as playing an important role in biological and medicinal applications. With their importance for synthetic chemists, the search for means of protecting ketones is ongoing. Tosylhydrazones have been suggested as such a means because they are easily formed through a simple condensation reaction between the ketone and p-tolysulfonylhydrazine, and they are resistant to many chemical conditions. Despite this, tosylhydrazones have seen little use
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Book chapters on the topic "Tosylhydrazine"

1

Zhang, Yan, and Jianbo Wang. "Alkene Synthesis Through Transition Metal-Catalyzed Cross-Coupling of N-Tosylhydrazones." In Topics in Current Chemistry. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/128_2012_322.

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von Angerer, S. "Dechlorination of 3-Chloropyrimidines with Tosylhydrazine." In Science of Synthesis Knowledge Updates KU 2011/1. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-116-00347.

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Herr, R. J. "Tosylhydrazine Condensation with α,β-γ,δ-Unsaturated Ketones." In Six-Membered Hetarenes with Two Unlike or More than Two Heteroatoms and Fully Unsaturated Larger-Ring Heterocycles. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-017-01477.

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Kim, S., and J. Y. Yoon. "Reduction of Tosylhydrazones." In Heteroatom Analogues of Aldehydes and Ketones. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00624.

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Margaretha, P. "Synthesis from -Alkyl--tosylhydrazines." In Chlorine, Bromine, and Iodine. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-035-00098.

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Kim, S., and J. Y. Yoon. "Nucleophilic Additions to Tosylhydrazones." In Heteroatom Analogues of Aldehydes and Ketones. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00625.

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Herr, R. J. "Diazoalkane Formation from Tosylhydrazones." In Six-Membered Hetarenes with Two Unlike or More than Two Heteroatoms and Fully Unsaturated Larger-Ring Heterocycles. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-017-01483.

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Zysman-Colman, E. "Using Tosylhydrazones and Alkylboranes." In Monocyclic Arenes, Quasiarenes, and Annulenes. Georg Thieme Verlag KG, 2010. http://dx.doi.org/10.1055/sos-sd-045-00135.

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Salan, J. "Of γ-Lactone Tosylhydrazones." In Ketones. Georg Thieme Verlag KG, 2005. http://dx.doi.org/10.1055/sos-sd-026-00443.

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Wicha, J. "Reduction of Tosylhydrazones with Catecholborane." In Alkanes. Georg Thieme Verlag KG, 2009. http://dx.doi.org/10.1055/sos-sd-048-00054.

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