Kinetic Studies on Reactions of Monocyclic Oxyphosphoranes with Ethylene Glycol

被引：0
|
作者：
Nan Ting ZHANG
Xin CHEN
Yu Fen ZHAO(Bioorganic Phosphorus Chemistry Laboratory Department of ChemistryTsinghua University
机构：
来源：
Chinese Chemical Letters | 1997年 / 02期
关键词：
Ethylene;
D O I：
暂无
中图分类号：
O643 [化学动力学、催化作用];
学科分类号：
070304 ; 081704 ;
摘要：
The reaction of monocyclic oxyphosphorane compounds 1a,1b,1c with ethylene glycol in pyridine was studied by 31P NMR.The results show that compound 1a the an unsaturated five-membered ring reacts faster than compound 1b the a saturated ring attached by two trans p-nitro phenyl groups,which in turn reacts greatly faster than the Cis- compound 1c. To interpret the mechanism, a hexacoordinate intermediate whose five-membered ring occupied the e-,e- position was proposed.
引用
收藏
页码：149 / 152
页数：4
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