Phosphorus betaines derived from cycloheptene and cyclooctene oxides. Inversion of cyclooctene
作者:Edwin Vedejs、Karel A. J. Snoble、Philip L. Fuchs
DOI:10.1021/jo00946a024
日期:1973.3
Influence of strain on chemical reactivity. Relative reactivity of torsionally distorted double bonds in MCPBA epoxidations
作者:Kenneth J. Shea、Jang Seob Kim
DOI:10.1021/ja00034a042
日期:1992.4
The second-order reaction rata were measured for the MCPBA epoxidation in CH 2 Cl 2 for a series of cyclic olefins including bridgehead olefins and trans-cycloalkenes. As expected, strained bridgehead alkenes and trans-cycloalkenes showed faster reaction rates than nonstrained cis-cycloalkenes. The MM-2 steric energies of alkenes, alkanes, and their corresponding epoxides were calculated to evaluate