Aziridine Scaffolds for the Detection and Quantification of Hydrogen-Bonding Interactions through Transition-State Stabilization
作者:Luciana Giordano、Cam T. Hoang、Michael Shipman、James H. R. Tucker、Tiffany R. Walsh
DOI:10.1002/anie.201005580
日期:2011.1.17
The rate of N inversion in aziridine derivatives is found to depend upon intramolecular interactions between the aziridine N and attached functional groups, thus allowing specific noncovalent interactions to be studied. The ortho‐substituted pyridine undergoes faster inversion as a result of the formation of an intramolecular amide–pyridine (NH⋅⋅⋅N) hydrogen bond in its transition state (see scheme)