Synthesis of cyclic di- and trithiocarbonates from epoxides and carbon disulfide catalyzed by N-heterocyclic carbene
作者:Jinsong Cao、Meng Yu、Hanzhu Li、Liang Wang、Xu Zhu、Guangying Wang、Yanhui Shi、Changsheng Cao
DOI:10.1007/s11164-014-1634-5
日期:2015.8
Abstract The synthesis of cyclic di- and trithiocarbonates from the reaction of epoxides and carbon disulfide catalyzed by N -heterocyclic carbene prepared in situ is described. 1,3-Oxathiolane-2-thiones or 1,3-dithiolane-2-thiones was obtained in high yield with good selectivity when the reactions were carried out with 4 in DMSO at 100 °C in the presence of K2CO3. The possible catalytic mechanism
Cyclic dithiocarbonates, their preparation and application
申请人:Henkel Kommanditgesellschaft auf Aktien
公开号:EP1506964A1
公开(公告)日:2005-02-16
The present invention relates to cyclic 5-membered ring dithiocarbonate compounds of the general formula
wherein, in the formula, R1, R2, and R3 are the same or different, each of which denotes hydrogen or a C1 to C4 straight-chain or branched alkyl. The invention further relates to a process for producing these compounds and a variety of products obtainable by reacting the title compounds.
Preparation of 1,3-Oxathiolane-2-thiones by the Reaction of Oxirane and Carbon Disulfide
作者:Nobuhiro Kihara、Yuichi Nakawaki、Takeshi Endo
DOI:10.1021/jo00107a034
日期:1995.1
RADICALLY POLYMERIZABLE SULFUR-CONTAINING COMPOUND AND RADICALLY POLYMERIZABLE SULFUR-CONTAINING POLYMER
申请人:Showa Denko K.K.
公开号:EP1791824B1
公开(公告)日:2009-08-05
Radically Polymerizable Sulfur-Containing Compound And Radically Polymerizable Sulfur-Containing Polymer
申请人:Ohta Keisuke
公开号:US20070208149A1
公开(公告)日:2007-09-06
The invention relates to a radically polymerizable sulfur-containing compound having a group represented by formula (1) and at least one selected from among groups represented by formulae (2) to (4), a radically polymerizable sulfur-containing polymer obtained by subjecting the compound to cationic ring-opening (co)polymerization, production process thereof, a composition containing the sulfur-containing compound and/or the sulfur-containing polymer, and a cured product obtained from the composition . . . (1)(2)(3)(4) . . . (R
1
to R
6
each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.) The cured product obtained from the radically polymerizable sulfur-containing compound and the radically polymerizable sulfur-containing polymer having a high refractive index is useful as an optical material, especially for lens material.