2203-14-7Relevant articles and documents
Structure, thermal stability, antioxidant activity and DFT studies of trisphenols and related phenols
Yu, Shasha,Wang, Yishan,Ma, Yujie,Wang, Limin,Zhu, Jia,Liu, Shenggao
, p. 159 - 170 (2017)
Two kinds of trisphenols have been successfully synthesized and their structures were confirmed by IR spectra, 1HNMR, 13CNMR, mass spectra and X-ray diffraction. They exhibited better thermal stability than both monophenol and bisphenols due to their higher molecular weight. Moreover, their antioxidant activities have been investigated in lubricant oil using PDSC and RBOT. The results showed that the o-trisphenol 3b exhibited the best antioxidant activity while the p-trisphenol 3a was the worst. In addition, their relationship between structures and properties has been further explored by a series of DFT calculations including the BDE values, the IP values and the Gibbs free energy barriers for the reaction between phenols and methylperoxyl radicals.
Two are better than one - Synthesis of novel blue and green emissive hydroxy-oxadiazoles
Anghel, C?t?lin C.,B?descu, Codru?a,H?dade, Niculina D.,M?d?lan, Augustin M.,Matache, Mihaela,Mirea, Anca G.,P?un, Anca,Popescu, Codru?a C.
, (2021/11/16)
We describe herein synthesis of novel hydroxy-bis-2,5-disubstituted-1,3,4-oxadiazoles and their ability to emit green light, through ESIPT mechanism. Unlike previous reports, our compounds exhibit very good quantum yields, most likely avoiding the presume
Process preparation method of 4-substituted-2, 6-dimethylphenol
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Paragraph 0122-0124, (2019/07/11)
The present invention discloses a process preparation method of 4-substituted-2, 6-dimethyl phenol. According to the process preparation method, a preparation route method is improved and optimized, reaction conditions are optimized, post-treatment and purification methods are improved, so that the danger grade of operation and the production cost are reduced; and the requirement for the corrosionresistance grade of reaction container equipment is low, the operation is safe, and the post-treatment is environment-friendly; and the prepared 4-substituted-2, 6-dimethyl phenol has less impurities, thus, the purity and the quality of an intermediate product are greatly improved while the yield is improved as well, the difficulty of process control in the production process of a subsequent rawmaterial medicine product is improved, and the quality and qualification rate of the subsequent raw material medicine product are improved; and the steps of the preparation method is simple to operate, the solvent and the process conditions are safe and easy to achieve, environment-friendly production is achieved, and the preparation method has wide application prospect.