Bibliografías temáticas / Nuclephilic addition

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Literatura académica sobre el tema "Nuclephilic addition"

Autor: Grafiati
Publicado: 10 de marzo de 2023

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Artículos de revistas sobre el tema "Nuclephilic addition"

1

MIYATA, Okiko, Tetsuro SHINADA, Takeaki NAITO y Ichiya NINOMIYA. "Stereospecific nuclephilic addition reaction of thiophenol to .ALPHA.,.BETA.-unsaturated esters." CHEMICAL & PHARMACEUTICAL BULLETIN 37, n.º 11 (1989): 3158–60. http://dx.doi.org/10.1248/cpb.37.3158.

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Lencina, María M. Soledad, Franco L. Redondo, Camila Müller, Vivina Hanazumi, Cristian Vitale, Mario D. Ninago, Daniel A. Vega, Marcelo A. Villar y Andrés E. Ciolino. "A Straightforward Methodology for the Synthesis of α,ω-Telechelic Poly(dimethylsiloxane)s". Australian Journal of Chemistry 71, n.º 3 (2018): 160. http://dx.doi.org/10.1071/ch17508.

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In this work we report the synthesis of α,ω-telechelic poly(dimethylsiloxane)s (α,ω-PDMS) by employing a novel bifunctional initiator obtained from a commercially available siloxane precursor, diglycidylether-terminated poly(dimethylsiloxane) (PDMS-DGE). The synthetic strategy was easily followed by different colour changes, and involved the high-vacuum reaction of sec-Bu−Li+ with 1,1′-diphenylethylene (DPE) to afford the addition adduct (bright red) that was subsequently reacted with PDMS-DGE, promoting the nuclephilic ring-opening from epoxide-end chains. The resulting bifunctional initiator (light green) was then employed to polymerize hexamethyl(cyclotrisiloxane) monomer (D3) by using conventional anionic polymerization (from light green to pale yellow). From suitable terminating agents, silane (–SiH), vinyl (–CH=CH2), hydroxy (–OH), and even methacryloyl α,ω-PDMS were obtained. 1H NMR and FT-IR analyses confirmed the presence of the targeted functional groups in the resulting polymers. However, a careful siliconization procedure should be performed over glass surfaces during the fractionation of chlorosilane ampoules in order to avoid the presence of silanol moieties that decrease end-capping efficiency. This fact was observed not only from NMR but also from size exclusion chromatography (SEC) analyses, since narrow molar masses distributions (1.15 ≤ Mw/Mn ≤ 1.3) and a good control over the resulting molar masses were observed.
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Kaboudin, Babak, Hamideh Haghighat, Saied Alaie y Tsutomu Yokomatsu. "Novel Method for the Synthesis of α-Amino-α′-hydroxyalkylphosphinic Acids and Bis(α-aminoalkyl)phosphinic Acids: Nuclephilic Addition of α-Hydroxy-H-phosphinic Acids to Diimines". Synlett 23, n.º 13 (23 de julio de 2012): 1965–69. http://dx.doi.org/10.1055/s-0032-1316706.

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Mosteiro, Roberto, Alberto Fernández, Margarita López-Torres, Digna Vázquez-García, Leticia Naya, Juan M. Ortigueira, José M. Vila y Jesús J. Fernández. "Versatile nuclephilic Michael addition to chelated (Ph2P)2CCH2 (vdpp) in Schiff base cyclometallated palladium(II) compounds: C–C, C–O and C–N bond formation, dinuclear palladacycles and geometrical isomerism". Journal of Organometallic Chemistry 720 (diciembre de 2012): 30–37. http://dx.doi.org/10.1016/j.jorganchem.2012.07.021.

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5

PIKUL, S. y J. JURCZAK. "ChemInform Abstract: Stereochemical Consequences of Nuclephilic Additions to 2,3-O-Isopropylideneglyceraldehyd." Chemischer Informationsdienst 17, n.º 9 (4 de marzo de 1986). http://dx.doi.org/10.1002/chin.198609084.

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Tesis sobre el tema "Nuclephilic addition"

1

Marradi, Marco. "New chiral nitrones for stereoselective syntheses of biologically active natural products and their analogues". Doctoral thesis, 2005. http://hdl.handle.net/2158/1161177.

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Use of carbohydrates (chiral pool) in organic synthesis through their transformation into chiral nitrones, as intermediates for the preparation of biologically active molecules (analogues of alkaloids)
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