56468-46-3Relevant articles and documents
Synthesis of Fluorescent Indazoles by Palladium-Catalyzed Benzannulation of Pyrazoles with Alkynes
Kim, Og Soon,Jang, Jin Hyeok,Kim, Hyun Tae,Han, Su Jin,Tsui, Gavin Chit,Joo, Jung Min
, p. 1450 - 1453 (2017)
The synthesis of indazoles from pyrazoles and internal alkynes is described. Instead of complex benzenoid compounds, readily available pyrazoles were used for the preparation of indazoles by reaction of the C-H bonds of the heterocyclic ring. Oxidative benzannulation was also applied to imidazoles, providing benzimidazoles. This convergent strategy enabled alteration of the photochemical properties of benzo-fused diazoles by varying the substituents at the benzene ring, thus leading to the development of tetraarylindazoles as new fluorophores.
Polyfunctional imidazolium surfactant and preparation method thereof
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Paragraph 0035; 0036, (2018/09/12)
The invention discloses a polyfunctional imidazolium surfactant and a preparation method thereof. The preparation method comprises the following steps: 1) preparing an alkyl-substituted imidazole intermediate; 2) preparing a bromo-oligomer intermediate; and 3) under nitrogen protection, adding the alkyl-substituted imidazole intermediate, the bromo-oligomer intermediate and acetonitrile in a reaction bottle, stirring the materials, heating the materials and performing backflow, reacting the materials, cooling the materials to room temperature, and removing a solvent to obtain the tri-imidazolium surfactant. Compared with the prior art, the tri-imidazolium surfactant has excellent performance, has three imidazolium groups, and greatly enhances the hydrophilic performance of the surfactant.The tri-imidazolium surfactant can adjust an amount of a monomer, effectively controls a size of a hydrophobic group in the surfactant molecules, and is in favor of regulating and controlling the performance of the surfactant. The preparation method of the tri-imidazolium surfactant has the advantage of simple process, and the obtained product has the advantages of easy separating and purifying, less by-product, and environmentally friendly performance.
Activity of new iminium compounds against bacteria and fungi strains. Part 28: Synthesis of 1-ethyl-, 1-n-decyl-2-phenyl-3-(n-alkylthiomethyl)- and 1-ethyl, 1-n-dodecyl-2-phenyl-3-(n-alkoxymethyl)imidazolium chlorides
Pernak,Krysinski,Skrzypczak
, p. 623 - 626 (2007/10/02)
The synthesis of quaternary imidazolium compounds was performed by reaction of 1-ethyl- or 1-n-dodecyl-2-phenylimidazole with chloromethyl-n-alkyl ether or chloromethyl-n-alkyl sulfid. The antibacterial properties of the compounds obtained were tested on
