No abstract

Der pKa‐Wert von (Ia) wird bestimmt.

No abstract

Aus dem Peroxid (I) wird in Methanol durch Umsetzung mit Na und dem Acyl‐ Chlorid (II) das gemischte Peroxid (III) erhalten.

The present paper describes the effect of various systems (carbocylic, as well as heterocyclic), on the decomposition rates of acyl peroxides. Systems studied include benzoyl-, 1-naphthoyl-, 2-naphthoyl-, 2and 3-thenoyl-, and 2and 3-furoyl. A total of 16 peroxides were prepared of which 12 have not previously been described. Rate studies were performed on the various compounds at 3 to 7 temperatures ranging from approximately 60-100°C. Rates were determined by Infrared spectroscopy. Activation energies were computed for all compounds studied. Further Investigation, Involving compounds which bear substituents on the various aromatic groups, appears to be Indicated before any overall conclusions on the effect of structure on decomposition rate can be made.