Dynamics and a Unified Understanding of Competitive [2,3]- and [1,2]-Sigmatropic Rearrangements Based on a Study of Ammonium Ylides
作者:Bibaswan Biswas、Sean C. Collins、Daniel A. Singleton
DOI:10.1021/ja4128289
日期:2014.3.12
The [2,3]- and [1,2]-sigmatropic rearrangements of ammoniumylides are studied by a combination of experimental, standard computational, and dynamic trajectory methods. The mixture of concerted [2,3] rearrangement and bond cleavage observed experimentally is accounted for by the outcome of trajectories passing through the formal [2,3] rearrangement transition state. In this way the bond cleavage is