Synthesis of macrocyclic polyethers via Ru complex-catalyzed metathesis cyclization and their use as the ring component of rotaxanes
Ring closing metathesis of the vinyl group-terminated oligoethers catalyzed by RuCl2({double bond, long}CHPh)(PCy3)2 yielded macrocyclic polyethers containing vinylene group. The 1H and 13C NMR spectr