Oxygen-18-labeling evidence against a hexacoordinate phosphorus intermediate in the alkaline hydrolysis of ethyl ethylene phosphate
作者:David G. Gorenstein、Kazunari Taira
DOI:10.1021/ja00386a056
日期:1982.11
The role of the hexacoordinate phosphorus intermediate in the reactions of phosphate esters is elucidated in this report. This report presents /sup 18/O labeling results that argue against the formation of such a species in the hydrolysis of a related five-membered ring phosphate ester, ethyl ethylene phosphate. Results confirm that no oxygen exchange from solvent occurs during the course of the reaction
本报告阐明了六配位磷中间体在磷酸酯反应中的作用。本报告提出了 /sup 18/O 标记结果,反对在相关的五元环磷酸酯、乙基亚乙基磷酸酯的水解中形成此类物质。结果证实,在反应过程中或与起始材料或产物之间没有发生来自溶剂的氧交换,并且所有产物在 pH2-15 下都有 100% 的 PO 裂解(其他结果未报告)。此外,最重要的是,我们在任何条件下都没有发现形成六配位中间体的证据。