16737-71-6Relevant articles and documents
A photopolymerization initiator, and ink composition using the same
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Paragraph 0160; 0161, (2017/02/24)
PROBLEM TO BE SOLVED: To provide a compound useful as a water soluble photopolymerization initiator, and an ink composition containing the same.SOLUTION: A compound is represented by general formula (1) [in general formula (1), each of Rto Rindependently represents a hydrogen atom or a substituent, however, at least one of Rto Ris a group represented by R-X-* (wherein Xrepresents an oxygen atom or a sulfur atom, Rrepresents a substituent, and * represents a site connecting with a benzene ring), also Rrepresents a substituent other than an aryl group and a heterocyclic group, and two or more Rs may be identical to or different from one another].
Copper(ii)-catalyzed C-O coupling of aryl bromides with aliphatic diols: Synthesis of ethers, phenols, and benzo-fused cyclic ethers
Liu, Yajun,Park, Se Kyung,Xiao, Yan,Chae, Junghyun
supporting information, p. 4747 - 4753 (2014/06/24)
A highly efficient copper-catalyzed C-O cross-coupling reaction between aryl bromides and aliphatic diols has been developed employing a cheaper, more efficient, and easily removable copper(ii) catalyst. A broad range of aryl bromides were coupled with aliphatic diols of different lengths using 5 mol% CuCl2 and 3 equivalents of K2CO3 in the absence of any other ligands or solvents to afford the corresponding hydroxyalkyl aryl ethers in good to excellent yields. In this newly developed protocol, aliphatic diols have multilateral functions as coupling reactants, ligands, and solvents. The resulting hydroxyalkyl aryl ethers were further readily converted into the corresponding phenols, presenting a valuable alternative way to phenols from aryl bromides. Furthermore, it was demonstrated that they are useful intermediates for more advanced molecules such as benzofurans and benzo-fused cyclic ethers. This journal is
β-Hydroxyalkylation of sterically hindered phenols with epoxides in acid medium
Krysin,Amitina,Egorova,Vasiliev
experimental part, p. 354 - 360 (2011/06/27)
Reactions of 2,6-dialkylphenols with ethylene oxide, propylene oxide and epichlorohydrin in the presence of SnCl4 at the temperature from -5 to +5°C leads to the formation of respective phenols containing a hydroxy group in the β-position of the aliphatic chain of the para-substituent. The conditions for maximum selectivity of the reaction of 2,6-di-tert-butylphenol with ethylene oxide were determined. By HPLC-MS method the directions of the side reactions were explored. The method has been successfully tested in a pilot installation. With 2,6-dimethylphenol instead of 2,6-di-tert-butylphenol a sharp increase occurs in the content of ethers in the reaction product. With epichlorohydrin, 2,6-di-tert-butylphenol affords a product, which is easily converted into an epoxide containing a sterically hindered phenol in its structure.