15911-93-0Relevant articles and documents
New poly(1,2,3-triazolesulfonic acids) for proton exchange membranes of fuel cell
Ponomarev,Zharinova, M. Yu.,Petrovskii,Klemenkova
, p. 305 - 310 (2009)
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Synthesis of podands with cyanurate or isocyanurate cores and terminal triple bonds
Piron, Flavia,Oprea, Cornelia,Cisma, Crinas,Terec, Anamaria,Roncali, Jean,Grosu, Ion
, p. 1639 - 1644 (2010)
The synthesis of podands with cyanuric or isocyanuric acid cores and oligoethyleneoxy pendant arms exhibiting terminal triple bonds or brominated triple bonds is reported. The starting material for cyanuric acid derived podands is commercially available c
Heterogeneous Organocatalysts Based on a Triazine-Triazole Silane Ligand
Cruz, Paula,Pérez, Yolanda,del Hierro, Isabel
supporting information, p. 4206 - 4214 (2018/09/27)
Robust and non-air-sensitive metal-free triazine-triazole heterogeneous organocatalysts were prepared. The synthetic procedure involved the co-condensation of a bridged tris silane precursor with tetraethyl orthosilicate (TEOS) in the presence of cetyltrimethylammonium bromide (CTAB). In addition, the silane precursor was anchored post-synthesis onto mesoporous silica nanoparticles and used to stabilize magnetic nanoparticles. The organocatalysts were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), N2 adsorption-desorption, transmission electron microscopy (TEM), solid-state nuclear magnetic resonance spectroscopy (CP-MAS-NMR), Fourier-transform infrared spectroscopy (FT-IR), and UV/Vis diffuse reflectance spectroscopy (DRUV/Vis). All materials, recoverable and recyclable, possess good catalytic activity in Knoevenagel condensation and in the one-pot three-component reaction for the synthesis of 2-amino-chromene derivatives under mild conditions.
HYDROXY GROUP PROTECTING AGENT AND HYDROXY GROUP PROTECTION METHOD
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Paragraph 0052, (2015/01/07)
To provide: a hydroxy group protecting agent which is stable and easy to use, does not have carcinogenicity, a tearing property or the like, and is inexpensive; and a hydroxy group protection method which enables the protection of a hydroxy group under acidic conditions. [Solution] A hydroxy group protecting agent in which at least one protecting group is bound to a nitrogen-containing electron-withdrawing heterocyclic ring through any one of an oxygen atom, a sulfur atom and a nitrogen atom. The heterocyclic ring is a triazine ring or the like, and the protecting group is a benzyl group or the like. Specifically, the hydroxy group protecting agent is 2,4,6-tribenzyloxy-1,3,5-triazine, 2,4,6-tris(4-methoxybenzyloxy)-1,3,5-triazine or the like. In addition, 2,4,6-tris(t-butoxy)-1,3,5-triazine or the like can also be used. For protecting a hydroxy group, a compound of interest which has a hydroxy group is reacted with the hydroxy group protecting agent under acidic conditions.