中国科学院上海有机化学研究所机构知识库
Advanced  
SIOC OpenIR  > 金属有机化学国家重点实验室  > 期刊论文
学科主题: 金属有机化学
题名: Self-supported heterogeneous titanium catalysts for enantioselective carbonyl-ene and sulfoxidation reactions
其他题名: 自负载的非均相Ti催化剂用于不对称羰基-烯和硫醚氧化反应
作者: Wang XS(王细胜) ; Wang XW(王兴旺) ; Guo HC(郭红超) ; Wang Z(王正) ; Ding KL(丁奎岭)
通讯作者: 丁奎岭
刊名: Chem.-Eur. J.
发表日期: 2005
卷: 11, 期:14, 页:4078-4088
收录类别: SCI
部门归属: 中科院上海有机化学研究所
英文摘要: A new strategy for the heterogenization of chiral titanium complexes was developed by the in situ assembly of bridged multitopic BINOL ligands with [Ti(OiPr)(4)] without using a support. The assembled heterogeneous catalysts (self-supported) showed excellent enantioselectivity in both the carbonyl-ene reaction of alpha-methylstyrene with ethyl glyoxylate (up to 98% ee) and the oxidation of sulfides (up to > 99% ee). The catalytic performance of these heterogeneous catalytic systems was comparable or even superior to that attained with their homogeneous counterparts. The spacers between the two BINOL units of the ligands in the assembled catalysts had significant impact on the enantioselectivity of the carbonyl-ene reaction. This demonstrates the importance of the supramolecular structures of the assemblies on their catalytic behavior. In the catalysis of sulfoxidation, the self-supported heterogeneous titanium catalysts were highly stable and could be readily recycled and reused for over one month (at least eight cycles) without significant loss of activity and enantioselectivity (up to > 99.9% ee). The features of these self-supported catalysts, such as facile preparation, robust chiral structure of solid-state catalysts, high density of the catalytically active units in the solids, as well as easy recovery and simple recycling, are particularly important in developing methods for the synthesis of optically active compounds in industrial processes.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000230380300003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/17799
Appears in Collections:金属有机化学国家重点实验室_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
2005125.pdf(419KB)----开放获取--View Download

Recommended Citation:
Wang XS,Wang XW,Guo HC,et al. Self-supported heterogeneous titanium catalysts for enantioselective carbonyl-ene and sulfoxidation reactions[J]. Chem.-Eur. J.,2005,11(14):4078-4088.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[王细胜]'s Articles
[王兴旺]'s Articles
[郭红超]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[王细胜]‘s Articles
[王兴旺]‘s Articles
[郭红超]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 2005125.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace