A new method for indole functionalization. Nucleophilic displacement reactions of [η6-(4- or 5-chloroindole)](η5-cyclopentadienyl)ruthenium(II) hexafluorophosphates
Abstract
New cyclopentadienylruthenium complexes of 4- or 5-chloroindole prepared by a thermal substitution reaction of (cyclopentadienyltrisacetonitrile)ruthenium with 4- or 5-chloroindole undergo smooth nucleophilic aromatic substitution with various nucleophiles.