Kinetic Studies on Reactions of Monocyclic Oxyphosphoranes with Ethylene Glycol

作     者：Nan Ting ZHANG Xin CHEN Yu Fen ZHAO(Bioorganic Phosphorus Chemistry Laboratory Department of ChemistryTsinghua University, Beiing, 100084) 

作者机构：TSING HUA UNIVDEPT CHEMBIOORGAN PHOSPHORUS CHEM LABBEIJING 100084PEOPLES R CHINA 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：1997年第8卷第2期

页      面：149-152页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

主　　题：Ethylene 

摘      要：The reaction of monocyclic oxyphosphorane compounds 1a,1b,1c with ethylene glycol in pyridine was studied by P-31 NMR. The results show that compound 1a with an unsaturated five-membered ring reacts faster than compound 1b with 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.