Using Secondary α Deuterium Kinetic Isotope Effects To Determine the Symmetry of S<sub>N</sub>2 Transition States
作者:Kenneth Charles Westaway、Thuy Van Pham、Yao-ren Fang
DOI:10.1021/ja962088f
日期:1997.4.1
The secondary α deuterium and heavy atom kineticisotopeeffects found for two different SN2 reactions suggest that the magnitude of secondary α deuteriumkineticisotopeeffects can be determined by the length of only the shorter (stronger) reacting bond in an unsymmetrical SN2 transition state rather than by the usual nucleophile−leaving group distance. Although this means the interpretation of these