Macrocyclic metal complexes as ladder polymers

摘要

Macrocyclic bis-dienes and diendienophile were prepared in Diels-Alder reactions starting from the bis-dienophilic (hemiporphyrazinato)nickel complex 1. Compound 1 was reacted either with the tetraene 2 or with tetraphenylcyclopentadienone (4). By combination of macrocyclic bis-dienes and bis-dienophiles, ladder-type oligomers (e.g. 9 or 10) were synthesized. The described oligomers are precursors for the corresponding conjugated oligomers, which are of interest as organic conductors. The preparation of the corresponding phthalocyanine compounds e.g. 13-16 and a method for obtaining the wanted "D-2h" phthalocyanine 19 without using tedious methods are reported. [References: 20]