Stepwise construction of novel zig-zag shaped thiophene-based back-to-back terpyridine ligands with acetylenic tethers
作者:Antoinette De Nicola、Céline Ringenbach、Raymond Ziessel
DOI:10.1016/s0040-4039(02)02386-9
日期:2003.1
cross-coupling of halogenated thiophene units with acetylene grafted terpyridine effectively yields ethynylated thiophenes. Deprotection of the propargylic fragment provides additional building blocks, which could be used in an iterative sequence of reactions. Reliable and practical synthetic routes are now available for the construction of very large polytopic frameworks.