Chin. J. Org. Chem. ›› 2008, Vol. 28 ›› Issue (08): 1471-1474. Previous Articles     Next Articles



王明奎*,a ; 李 甫a,b   

  1. (a中国科学院成都生物研究所 成都 610041)
    (b中国科学院研究生院 北京 100039)
  • 收稿日期:2007-09-11 修回日期:2008-03-05 发布日期:2008-08-18
  • 通讯作者: 王明奎

Synthesis of an Episulfide Intermediate

WANG, Ming-Kui*,a ; LI, Fu a,b   

  1. (a Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041)
    (b Graduate School of Chinese Academy of Sciences, Beijing 100039)
  • Received:2007-09-11 Revised:2008-03-05 Published:2008-08-18
  • Contact: WANG, Ming-Kui

In order to prepare monomers for high refractive index resin, an episulfide intermediate, meth-oxycarbonyldithiothiirane, was synthesized, which could react with thiols to make episulfide monomers in a mild condition. Monomer 2,2’-[methylene bis-dithio]-bis-thiirane was prepared with dimercaptomethane and the intermediate. Polymerization of this monomer gave a thermosetting optical resin with index and Abbe number as high as nD/νD=1.79/28.

Key words: methoxycarbonyldithiothiirane, super-high refractive index, optical resin, 2,2’-[methylene bis-dithio]-bis-thiirane