Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (6): 652-657.DOI: 10.11944/j.issn.1000-0518.2015.06.140366

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Synthesis of Polyethylene Glycol Vitamin E Succinate in Ionic Liquid

GONG Kai*, WANG Liguo, CHEN Jinghua   

  1. School of Pharmaceutical Science,Jiangnan University,Wuxi,Jiangsu 214122,China
  • Received:2014-10-23 Accepted:2015-01-13 Published:2015-06-10 Online:2015-06-10
  • Contact: Kai GONG
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.51303069)

Abstract:

Polyethylene glycol 1000(PEG 1000) Vitamin E succinate was prepared by a two-step esterification reaction of Vitamin E using ionic liquids as reaction catalysts. Vitamin E succinate(TAS) was obtained via the esterification of vitamin E catalyzed by 1-(N',N'-dimethylamino-ethyl)-3-methyl-imidazolium tetrafluoroborate. Under the conditions of 1:1.2 molar ratio of Vitamin E and succinic anhydride in 1,2-dichloroethane at 80 ℃ for 4 h, the isolated yield reached 90%. Under 1:2 molar ratio of TAS and PEG 1000 for 5 h at 100 ℃, polyethylene glycol 1000 Vitamin E succinate was synthesized in 1-methyl-3-propyl sulfonic acid imidazolium hydrogen sulfate/toluene media with 91% yield.

 

Key words: ionic liquid, green catalysis, vitamin E succinate, polyethylene glycol 1000 vitamin E succinate

CLC Number: