Imaging Science and Photochemistry ›› 2016, Vol. 34 ›› Issue (6): 564-568.DOI: 10.7517/j.issn.1674-0475.2016.06.564

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Preparation and Characterization of Cationic Photoinitator (4-Hydroxyphenyl)methyl(phenylmethyl) Sulfonium Hexafluoroantimonate

LIU Anchang1, YU Caihong1, PANG Yulian2, ZHANG Shukang1, DONG Yuanhai1, YU Yu1   

  1. 1. Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan 430074, Hubei, P. R. China;
    2. Hubei Gurun Technology Co., Ltd, Wuhan 430074, Hubei, P. R. China
  • Received:2016-05-17 Online:2016-11-15 Published:2016-11-15

Abstract:

A method is provided for preparing (4-hydroxyphenyl)methyl-(phenylmethyl)sulfonium hexafluoroantimonate. 4-Mercaptophenol reacted with benzyl chloride in the present of triethylamine to give 4-(benzylthio)phenol;4-(benzylthio)phenol reacted with dimethyl sulfate in the solution of toluene to give (4-hydroxyphenyl)methyl(phenylmethyl) iodonium sulfonium methyl sulfate salt. Then the salt reacted with KPF6 in the solution of methanol to give the (4-hydroxyphenyl)methyl-(phenylmethyl)sulfonium hexafluoroantimonate, which structure was identified by UV and 1HNMR. The total yield is above 75%.

Key words: UV-phocoinitiator, sulfonium salt, 4-mercaptophenol