摘要
利用多齿手性1,1′-联二萘酚(BINOL)与Ti(OiPr)4在溶剂中通过自组装方式形成一种不溶性高聚物,然后将其用于不对称催化氧化硫醚成亚砜的反应.研究表明制备的自组装Ti-BI-NOL催化剂均有较好的催化性能,ee值高达98%;配体的连接桥和反应溶剂对催化剂催化性能均有较大的影响.
Insoluble 1, 1′-bi-2-naphthol-Ti (BINOL-Ti) coordination polymeric catalysts were prepared by self-assembly of BINOL-based multitopic ligands and Ti(OiPr)4. In the application to catalytical asymmetric oxidation of sulfide to sulfoxide, the resulting catalysts exhibited good yield and excellent enantioselectivity(up to 98%ee) and the preliminary results showed that the bridged-linker and the solvent were found to have a sig- nificant effect on the enantioselectivity.
出处
《华中师范大学学报(自然科学版)》
CAS
CSCD
2008年第2期228-231,共4页
Journal of Central China Normal University:Natural Sciences
基金
重庆市科委基金(2007BB4442)
重庆市教委基金(KJ070402)资助项目
关键词
1
1′-联二萘酚
自组装
不对称催化
配位聚合物
1, 1′-bi-2-naphthol
self-assembly
asymmetric catalysis
coordination polymer.