Bibliografías temáticas / Thia-Michael

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Literatura académica sobre el tema "Thia-Michael"

Autor: Grafiati
Publicado: 25 de enero de 2025
Última modificación: 31 de julio de 2025

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Artículos de revistas sobre el tema "Thia-Michael"

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Berne, Dimitri, Vincent Ladmiral, Eric Leclerc, and Sylvain Caillol. "Thia-Michael Reaction: The Route to Promising Covalent Adaptable Networks." Polymers 14, no. 20 (2022): 4457. http://dx.doi.org/10.3390/polym14204457.

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While the Michael addition has been employed for more than 130 years for the synthesis of a vast diversity of compounds, the reversibility of this reaction when heteronucleophiles are involved has been generally less considered. First applied to medicinal chemistry, the reversible character of the hetero-Michael reactions has recently been explored for the synthesis of Covalent Adaptable Networks (CANs), in particular the thia-Michael reaction and more recently the aza-Michael reaction. In these cross-linked networks, exchange reactions take place between two Michael adducts by successive diss
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2

Guha, Chayan, Nayim Sepay, Tapas Halder та Asok Mallik. "Remarkable Diastereoselectivity of the Thia-Michael Reaction on α,α′-Di[(E)-benzylidene]alkanones: Exclusive Formation of a meso Product". Synlett 29, № 09 (2018): 1161–66. http://dx.doi.org/10.1055/s-0036-1591961.

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Thia-Michael addition of thiophenol to α,α′-di[(E)-benzyl­idene]alkanones of both cyclic (six-membered) and acyclic varieties using anhydrous K2CO3 or amberlyst-15 as catalyst has been found to be highly diastereoselective at 15 °C. A one-pot protocol was developed for such reactions by a tandem aldol-thia-Michael process. The stereochemistry of the products was confirmed by X-ray crystallographic studies and in all cases formation of a meso product was observed.
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3

Genty, Axelle, Ismail Alahyen, Marie-José Tranchant та ін. "Straightforward Access to Polyfunctionalized δ-Lactams via Domino Aza–Michael/Thia–Michael/Aldol Sequence". Molecules 30, № 10 (2025): 2154. https://doi.org/10.3390/molecules30102154.

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Domino reactions are powerful tools for the straightforward synthesis of complex molecules with a particular emphasis on functionalized azacycles. We report a contribution in this field, implemented via a new thia–Michael/aldol sequence between readily accessible N-alkoxyacrylamides and α,β-unsaturated carbonyls, for access to polysubstituted δ-lactams with acceptable-to-good yields and good selectivity. This method, initially developed in a two-component approach and characterized by the mildness of its reaction conditions, was shown to be compatible with various thiophenol derivatives and to
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4

Wessig, Pablo, Tanja Schulze, Alexandra Pfennig, Steffen M. Weidner, Sascha Prentzel, and Helmut Schlaad. "Thiol–ene polymerization of oligospiroketal rods." Polymer Chemistry 8, no. 44 (2017): 6879–85. http://dx.doi.org/10.1039/c7py01569k.

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Lin, Ya-mei, Guo-ping Lu, Chun Cai, and Wen-bin Yi. "An odorless thia-Michael addition using Bunte salts as thiol surrogates." RSC Advances 5, no. 34 (2015): 27107–11. http://dx.doi.org/10.1039/c5ra01381j.

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6

Herbert, Katie M., Patrick T. Getty, Neil D. Dolinski, et al. "Dynamic reaction-induced phase separation in tunable, adaptive covalent networks." Chemical Science 11, no. 19 (2020): 5028–36. http://dx.doi.org/10.1039/d0sc00605j.

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Bosica, Giovanna, Roderick Abdilla, and Alessio Petrellini. "Thia-Michael Reaction under Heterogeneous Catalysis." Organics 4, no. 1 (2023): 86–96. http://dx.doi.org/10.3390/org4010007.

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Thia-Michael reactions between aliphatic and aromatic thiols and various Michael acceptors were performed under environmentally-friendly solvent-free conditions using Amberlyst® A21 as a recyclable heterogeneous catalyst to efficiently obtain the corresponding adducts in high yields. Ethyl acrylate was the main acceptor used, although others such as acrylamide, linear, and cyclic enones were also utilized successfully. Bifunctional Michael donor, 3-mercaptopropanoic acid, positively furnished the product, albeit in a lower yield and after leaving the reaction to take place for a longer time. T
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Qiu, Lin, Zhongqing Wen, Yuling Li, et al. "Stereoselective functionalization of platensimycin and platencin by sulfa-Michael/aldol reactions." Organic & Biomolecular Chemistry 17, no. 17 (2019): 4261–72. http://dx.doi.org/10.1039/c9ob00324j.

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Hayama, Noboru, Yusuke Kobayashi, Eriko Sekimoto та ін. "A solvent-dependent chirality-switchable thia-Michael addition to α,β-unsaturated carboxylic acids using a chiral multifunctional thiourea catalyst". Chemical Science 11, № 21 (2020): 5572–76. http://dx.doi.org/10.1039/d0sc01729a.

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Mostardeiro, Vitor B., Marina C. Dilelio, Teodoro S. Kaufman, and Claudio C. Silveira. "Efficient synthesis of 4-sulfanylcoumarins from 3-bromo-coumarins via a highly selective DABCO-mediated one-pot thia-Michael addition/elimination process." RSC Advances 10, no. 1 (2020): 482–91. http://dx.doi.org/10.1039/c9ra09545d.

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Tesis sobre el tema "Thia-Michael"

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Genty, Axelle. "Synthèse stéréοsélective d’hétérοcycles azοtés par réactiοns mοnοtοpes dοminο". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMLH30.

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Les hétérocycles azotés sont particulièrement présents en chimie médicinale et pharmaceutique. Les δ-lactames, en particulier, connaissent un essor croissant en raison de leur fort intérêt biologique et de leur utilisation en tant qu'intermédiaires réactionnels pour la synthèse de molécules d'intérêt. L’étude croissante de ces composés conduit à une recherche de nouvelles voies de synthèse pour accéder à ces motifs polyfonctionnalisés. Les réactions monotopes se distinguent comme une stratégie privilégiée, permettant, en une seule étape, la formation de multiples liaisons et centres stéréogène
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2

Li, Mao. "Iron(III) catalyzed asymmetric Diels-Alder reaction - Iron(II) catalyzed thia-Michael addition and aldehyde allylation reactions." Doctoral thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/34969.

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En raison de leur grande performance, leur prix peu élevé, et leur abondance sur la terre, les catalyseurs de fer ont été choisis pour être testés dans trois différentes transformations de la chimie organique. Le premier projet concerne les réactions asymétriques de Diels-Alder catalysées par Fe⁺¹¹¹ et le ligand bipyridine chiral à des dérivés α, β-insaturés de l’oxazolidin-2-one. Dans un premier temps, nous avons testé différents solvants, diverses quantités en catalyseur, temps de réaction variés et divers sels de fer tels que Fe(ClO₄)₂·6H₂O, Fe(ClO₄)₂·6H₂O, Fe(OTf)₃, Fe(OTf)₂, FeCl₂, FeCl₃,
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3

Nocentini, Benedetta. "Indagine su reazioni di sulfa-Michael di interesse in campo cosmetologico e sul trattamento ricostruttore del capello." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15849/.

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The aim of this work was to evaluate the reactivity of cysteinyl residues that can be found in damaged human hair with Michael acceptors under mild conditions and to gain information on the hair modifications occurring in hair bleached and then repaired with some commercial formulations. In some patents, the use of some molecules effective for repairing damaged hair is claimed. Their structure is compatible with the occurrence of Michael addition reactions, and the need of more detailed studies about the reaction mechanism and the effect on human hair of commercial products containing hair reb
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4

Guerre, Marc. "Synthèse et Auto-assemblage de Copolymères Fluorés Amphiphiles Deeper insight into the MADIX Polymerization of Vinylidene Fluoride A Journey into the Microstructure of PVDF Made by RAFT Limits of vinylidene Fluoride RAFT Polymerization One-pot Synthesis of Poly(Vinylidene Fluoride) Methacrylate Macromonomer via thia-Michael addition RAFT synthesis of well-defined PVDF-b-PVAc block copolymers Combination of cationic and radical RAFT polymerization: A versatile route to well-defined poly(vinyl ethyl ether)-block-poly(vinylidene fluoride) block copolymers Amphiphilic poly(vinylidene fluoride)-b-poly(vinyl alcohol) block copolymer: Synthesis and Self-Assembly in water Polymerization-induced Self-Assembly of PVAc-b-PVDF block copolymers via RAFT dispersion polymerization of VDF in dimethylcarbonate." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2017. http://www.theses.fr/2017ENCM0006.

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Les polymères fluorés constituent une classe de polymères à part, aux propriétés remarquables (résistance chimique et thermique, ferroélectricité et piézoélectricité lorsqu‟ils sont semicristallins pour en citer quelques-unes). Les polymères fluorés ont trouvé de nombreuses applications industrielles. Toutefois, ils n‟ont pas encore attiré tout l‟intérêt qui leur est dû de la part de la communauté scientifique. Il reste en effet difficile de préparer des architectures polymères fluorées bien définies. Les techniques de synthèse développées et utilisées jusqu‟à présent permettent la synthèse d‟
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5

Chiang, Chien-Wei, and 江建緯. "C2-Symmetric Proline-Derivative Nickel Complexes for Mimicking the Functional Model of Nickel Superoxide Dismutase and Their Application for thia-Michael Addition." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/41634518463801219304.

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博士<br>國立臺灣師範大學<br>化學系<br>101<br>Nickel-containing superoxide dismutase (NiSOD), has been discovered recently from Streptomyces species and marine cyanobacteria. NiSOD can catalyze the dismutation of O2− into O2 and H2O2 through a cycle of Ni(II) and Ni(III) oxidation states. In order to mimic the fuction of the active site of the NiSOD, a series of pentadentate ligands equipped with pyridine and proline derivatives have been designed and prepared. The prepared ligand, for instance 2,6-bis(((S)-2-(diphenylhydroxymethyl)-1-pyrrolidinyl)methyl)pyridine (H2BDPP), was deprotonated and employed to r
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6

Huang, Hsin‐Yi, and 黃馨誼. "(1) Sequential Yb(OTf)3 Catalyzed One-Pot Three-Component Thia-Michael Addition(2) p-Toluenesulfonic Acid Catalyzed N-Formylation of N-Formylimide with Amine in Water." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5q3k22.

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碩士<br>國立中興大學<br>化學系所<br>106<br>In the first part of this thesis, we report the three-component one-pot reaction of thia-Michael additions by using Yb(OTf)3. Compared with traditional work, thia-Michael addition comes from commercially available thiols and α,β-unsaturated compounds in alkaline condition, however, the starting material of thiols have some disadvantages, including smelly odor and easily oxidized to disulfide bond. In order to improve this situation, the reactions conducted under organic halides conditions have been reported. Herein, we report a new synthetic method that produces
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Actas de conferencias sobre el tema "Thia-Michael"

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Movassagh, Barahman, and Ali Yousefi. "Magnetite (Fe3O4) Nanoparticles: An Efficient and Reusable Catalyst for the Synthesis of Thioethers, Vinyl Thioethers, Thiol Esters, and Thia-Michael Adducts under Solvent-Free Condition." In The 17th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2013. http://dx.doi.org/10.3390/ecsoc-17-a018.

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