ChemInform Abstract: Oxidation of Enamines with Molecular Oxygen. Part 3. Oxidation of Some Aminostyrenes.

Abstract

Oxidation of Enamines with Molecular Oxygen. Part 3. Oxidation of Some Aminostyrenes.-In order to get a better insight in the mechanism of olefin oxidation, the oxidation of the aminostyrenes (I)-(V) is investigated. In all cases only an oxidative attack at the C-C double bond takes place. Reaction products (tabulated by use of gaschromatographic analysis) are α-aminoketones and/or products of the C-C double bond cleavage. Aprotic dipolar solvents and the addition of molecular sieves 5Å promote the oxygen uptake, whereas addition of hydroquinone does not influence the rate of oxygen uptake or the yields of oxidation products. -(BLAU, K.; BURGEMEISTER, I.; GRASNICK, J.; VOERCKEL, V.; J. Prakt. Chem. 333 (1991) 3, 455-466; Sekt. Chem., TU Merseburg, O-4200 Merseburg, Fed. Rep. Ger.; EN)