Gunther Schlingloff

Use of molecular oxygen in the Baeyer-Villiger oxidation the influence of metal catalysts

Abstract Baeyer-Villiger oxidation of ketones using molecular oxygen and benzaldehyde in the absence of metal catalysts afforded lactones in high yields. The catalytic activity of various metal salts has been studied.

Metal-catalysed enantiospecific aerobic oxidation of cyclobutanones

The metal-catalysed aerobic oxidation of substituted racemic cyclobutanones provides optically active lactones with enantioselectivities of up to 95% e.e.

β-Hydroxy sulfoximines as catalysts for the enantioselective alkylation of aldehydes

Optically active β-hydroxy sulfoximines are catalysts for the enantioselective ethyl transfer from diethylzinc to aldehydes affording secondary alcohols with high enantioselectivity; the structure of a dimeric zinc alkoxide has been determined by X-ray diffraction analysis.