The α-secondary isotope effect in the 1,2∼C rearrangement of cyclopropylchlorocarbene
作者:Robert A. Moss、Weiguo Liu、Karsten Krogh-Jespersen
DOI:10.1016/s0040-4039(00)61718-5
日期:1993.9
The experimental α-secondary kinetic isotope effect for the rearrangement of (2,2-dideuteriocylopropyl)chlorocarbene, 2-2, to chlorocyclobutenes, 4 and 5, is H/D = 1.20 at 21 °C. The corresponding value calculated by ab initio electronic structure methods is 1.12. The isotope effect very largely originates in hybridization changes at the migrating carbon atom.
为(2,2-dideuteriocylopropyl)chlorocarbene的重排,2-实验α-次级动力学同位素效应2,至chlorocyclobutenes,4和5,是ħ / d = 1.20在21℃。从头算电子结构方法计算得出的相应值为1.12。同位素效应很大程度上起源于迁移的碳原子处的杂交变化。