Synthesis and dehydrative condensation of monomeric hydroxoruthenium complexes with hydrotris(3,5-diisopropylpyrazolyl)borate ligand, TpiPr2Ru(L2)-OH (L2 = dppe, bipy).

Abstract

Monomeric neutral hydroxoruthenium complexes, TpiPr2RuOH(L2) (L2 = dppe, bipy), are prepared by deprotonation of aquo complexes, and it is confirmed that dehydrative condensation reaction of the hydroxo complexes with carboxylic acids involves protonation of hydroxo ligand followed by replacement of the resultant aquo ligand by the nucleophile.