Translational Isomerizations in [2]Catenanes with Unsymmetrically Substituted Resorcinol-Based Tethers
作者:Ronald L. Halterman、David E. Martyn
DOI:10.1021/jo071036d
日期:2007.10.1
The translational isomerizations of nine [2]catenanes (2−10) containing an electron-rich dibenzo-34-crown-10 ether (BPP34C10) interlocked with rings containing an unsymmetric 4-substituted (chloro, ethyl, or hexyl) resorcinol-based tether linking two electron-deficient dipyridyl groups have been studied by variable temperature (VT) 1H NMR spectroscopy. The second symmetric tether between the dipyridyl