Komplexe von Acetylaceton und Acetonylaceton mit Alkali- und Erdalkaliionen. MO-SCF-Berechnungen und UV-Spektroskopie

In analogy to previous investigations on main group metal ion complexes with diacetyl², model calculations within the LCGO MO SCF framework using minimal basis sets are used in combination with UV spectrocopy in order to investigate complex formation tendencies, eventual ion specifities and ion binding energies of Li, Na, K, Mg and Ca ions with dicarbonyl ligands. The influence of the separation of the coordinative centers by methylene groups on the interaction with these metal ions is discussed. The simple quantum chemical models seem to work in the case of diacetyl and acetylacetone, whereas they fail in the prediction of the experimentally observed interaction of acetonylacetone with the metal ions.

     

Carbon-carbon bond formation between alkylated alkenes and acrylic ester via 2-methoxyalkyl radicals

Methoxymercuration/demercuration reactions of alkenes 10 in $\text{10}$ in the presence of acrylic ester yield products $\text{11}$ in a carbon-carbon bond formation reaction.