52277-33-5Relevant articles and documents
A facile approach to bis(Isoxazoles), promising ligands of the ampa receptor
Averina, Elena B.,Grigoriev, Vladimir V.,Grishin, Yuri K.,Karlov, Dmitry S.,Kuznetsova, Tamara S.,Palyulin, Vladimir A.,Radchenko, Eugene V.,Rybakov, Victor B.,Sadovnikov, Kirill S.,Sedenkova, Kseniya N.,Vasilenko, Dmitry A.,Zamoyski, Vladimir L.
, (2021/11/01)
A convenient synthetic approach to novel functionalized bis(isoxazoles), the promising bivalent ligands of the AMPA receptor, was elaborated. It was based on the heterocyclization reactions of readily available electrophilic alkenes with the tetranitromethane-triethylamine complex. The structural diversity of the synthesized compounds was demonstrated. In the electrophysi-ological experiments using the patch clamp technique on Purkinje neurons, the compound 1,4-phenylenedi(methylene)bis(5-aminoisoxazole-3-carboxylate) was shown to be highly potent positive modulator of the AMPA receptor, potentiating kainate-induced currents up to 70% at 10?11 M.
Catalyzed synthesis method for 1,4-butanediol acrylate by means of solid acid
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Paragraph 0015; 0016; 0017; 0018; 0019; 0020; 0021-0027, (2017/05/13)
The invention provides a catalyzed synthesis method for 1,4-butanediol acrylate by means of solid acid. The method comprises the step that under the catalyzing effect of a solid-acid catalyst, crylic acid reacts with 1,4-butanediol for two to eight hours at 110-140 DEG C for preparing the 1,4-butanediol acrylate, wherein the molar ratio of the crylic acid to the 1,4-butanediol is 2.5:1-5:1, and the mass of the solid-acid catalyst is 1-20% of that of the 1,4-butanediol. The efficiency for catalyzing the 1,4-butanediol acrylate by means of the solid acid is high, and the selectivity of the 1,4-butanediol acrylate is high, so that the catalyzed synthesis method for the 1,4-butanediol acrylate by means of the solid acid has wide application prospects.
Free radical and nitroxide mediated polymerization of hydroxy-functional acrylates prepared via lipase-catalyzed transacylation reactions
Popescu, Dragos,Hoogenboom, Richard,Keul, Helmut,Moeller, Martin
experimental part, p. 2610 - 2621 (2011/04/22)
3-Hydroxypropyl acrylate, 4-hydroxybutyl acrylate, 2-methyl-3-hydroxypropyl acrylate, 2-hydroxypropyl acrylate, neopentyl glycol acrylate, glyceryl acrylate, and dihydroxyhexyl acrylate were prepared via transacylation reaction of methyl acrylate with diols and triols catalyzed by Candida antarctica lipase B. After removal of the enzyme by filtration and the methyl acrylate by distillation, the monomers were polymerized via free radical polymerization (FRP) with azobisisobutyronitrile as initiator and nitroxide mediated polymerization (NMP) employing Blocbuilder alkoxyamine initiator and SG-1 free nitroxide resulting in hydroxy functional poly(acrylates). The NMP kinetics are discussed in detail. In addition, the polymers obtained by FRP and NMP are compared and the results are related to the amount of bisacrylates that are present in the initial monomer mixtures resulting from the transacylation reactions