POLYETHERS, METHODS OF MAKING SAME, AND USES THEREOF
申请人:Coates Geoffrey W.
公开号:US20140179895A1
公开(公告)日:2014-06-26
Isotactic polyethers, methods of making polyethers, and uses of polyethers. The polyethers have a chain transfer group formed from a chain transfer agent. The methods of making the polyethers use monoalcohol chain transfer agents or multifunctional chain transfer agents. The polyethers can be used in materials, such as polyurethanes, elastomers, thermoset plastics, and thermoplastics, and as non-ionic surfactants.
US9365674B2
申请人:——
公开号:US9365674B2
公开(公告)日:2016-06-14
A broadly applicable and practical oligomeric (salen)Co catalyst for enantioselective epoxide ring-opening reactions
作者:David E. White、Pamela M. Tadross、Zhe Lu、Eric N. Jacobsen
DOI:10.1016/j.tet.2014.03.043
日期:2014.7
enhancements in reactivity and enantioselectivity relative to monomeric and other multimeric (salen) Co catalysts in a wide variety of enantioselective epoxide ring-opening reactions. The application of catalyst 4a is illustrated in the kinetic resolution of terminalepoxides by nucleophilic ring-opening with water, phenols, and primary alcohols; the desymmetrization of meso epoxides by addition of