Synthesis and Spectroscopic Properties of a Novel Bis-spirocalixarene
作者:Gerald Dyker、Michael Mastalerz
DOI:10.1055/s-2006-939730
日期:2006.6
A convenient synthesis of the first spiro-bound calix[4]arene containing fluorenyl moieties at the para-position is presented. Dynamic NMR effects of the spiro-calixarene 4 are in accord with a preferred partial-cone conformation.
O-arylation of calix[4]arenes with N-heteroarenes with temperature control under neat conditions. The resulting multidentate ligands are potential building blocks for transition metal complexes or supramolecular aggregates: dipyridoxycalixarene 3b, together with palladium(II) chloride, produced a complex with a fascinating crystal structure, six molecules self-assembling into hexamericsupracycles with an