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学科主题: 有机化学
题名: 聚乙烯负载氮叶立德催化的二氢呋喃衍生物的高选择性合成
其他题名: Highly Diastereroselective Synthesis of Dihydrofurans Catalyzed by PE-supported Pyridinium
作者: 陈帅帅 ; 罗时忠 ; 李军方 ; 孙秀丽 ; 唐勇
通讯作者: 唐勇
刊名: 高等学校化学学报
发表日期: 2011-01-01
卷: 32, 期:3, 页:712-716
收录类别: SCI
部门归属: 安徽师范大学; 中科院上海有机化学研究所
英文摘要: The Ylide reaction is one of the most useful approaches in forming ring compounds, and highly efficient catalysis of Ylide reaction becomes one of the important frontiers in organic synthetic research. Polymer supported catalysis with tunable loading may increase the efficiency of the catalysis and avoid the volatilization of the ylide catalysis which might be savory and poisonous. In the presence of catalytic (O(-)NX) TiCl(3) and MMAO, 4-(undec-10-enyl) pyridine was triumphantly inserted into the polyethylene chains. This PE supported pyridine proved to be an excellent recoverable and reusable organocatalyst. In the presence of catalytic amount of PE-supported pyridine and Fe(Tcpp) CI, alpha-ylidene-beta-diketones reacted with diazoacetate affording dihydrofurans respectively in up to 96% yield with high diastereoselectivities. The catalyst could be easily recovered after the reaction by cooling the reaction mixture to room temperature because the solubility of the PE-supported catalyst is dependent on the temperature and comonomer content. The yield of the reaction was almost maintained with excellent selectivity which was higher than 90% in 3 runs. This application allowed PE to be used as a cheap, readily prepared, easy separated, no-volatility, low noxious and recoverable catalyst support.
语种: 中文
内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/19397
Appears in Collections:金属有机化学国家重点实验室_期刊论文

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Recommended Citation:
陈帅帅,罗时忠,李军方,等. 聚乙烯负载氮叶立德催化的二氢呋喃衍生物的高选择性合成[J]. 高等学校化学学报,2011,32(3):712-716.
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