24910-68-7Relevant articles and documents
Synthesis and Characterization of New 1,3,5 -Triazine Derivatives Based on Benzene Ring
Shallal, Muhammed Abdalhasan,Hussien, Hyffaa Y.
, p. 7201 - 7208 (2021/11/16)
Liquid crystal materials have a number of ordinary uniqueness such as mechanical or electro-optical properties. New triazines derivatives compound was obtained starting from 1,3,5-triazine and 1,3,5-trichlorobenzene. The synthesized compound consists of three-armed, one arm of phenol and two armed of 2,4-bis-(dode-cyloxy)-6- ethynyltriazine that built up via reaction of triazine with dodecan-1-ol. The substitution was achieved efficiently at appropriate temperature under the argon atmosphere by cross coupling. However, the two armed of 2,4- bis(dodecyloxy)ethynyltriazine on the periphery are considered for liquid crystal application. The target compound did not exhibit a transition phase in its pure state but, after ionic interaction with 4-DBA which already possess a phase transition, it showed a phase transition and liquid crystal properties. We study the liquid crystal properties of obtained organic salts after ionic interaction through hydrogen bonding via methods of OPM "optical polarizing microscope"and DSC "differential calorimetric scanning). After purification with column chromatography then confirmed their structures by analysis of spectroscopy (MS, NMR, and FT-IR).
Compound pyrene has and its preparation method, the organic electroluminescent device (by machine translation)
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Paragraph 0085; 0086; 0087, (2016/10/31)
The present invention provides a method for preparing the same composition and pyrene, organic electroluminescent device, the compound pyrene has formula (I) is shown. Compared with the prior art, the present invention provides the compound pyrene derivatives [...] N in the introduction, or O and S Ar 1-Ar 5 of pyrene three-dimensional structure is formed, at the same time can be adjusted through the introduction of the group wavelength of the compound, so as to improve the formula (I) luminescence of compound shown in the organic electroluminescent device of the light-emitting efficiency and the life-SPAN of the device. (by machine translation)
Copper-mediated synthesis of mono- and dichlorinated diaryl ethers
?ermák, Jan K.,Církva, Vladimír
supporting information, p. 4185 - 4188 (2014/07/22)
An efficient synthesis of polychlorinated diphenyl ethers (PCDEs) using the Cu(OAc)2-catalyzed Chan-Lam coupling reaction is described. A library of all possible mono- and dichlorinated diphenyl ether congeners was prepared and characterized using MS, 1H, and 13C NMR spectroscopy, and Kovats retention indices. Our approach, using the optimized reaction conditions (i.e., reaction temperature, oxidizing atmosphere and base), significantly improves and simplifies the process compared to previously reported syntheses.