No abstract

Die Aminobutinyloxy‐ (III) bzw. die Aminobutinylphthalimide (V) wurden durch Mannich‐Reaktion der Phthalimide (I) bzw. (IV) mit den cyclischen Aminen (II) und Paraformaldehyd synthetisiert.

The thermal decomposition of bis (triphenylsilyl) peroxide gave an essentially quantitative yield of pentaphenylphenoxydisiloxane. Bis(p-tolyldiphenylsilyl) peroxide and bis(p-anisyldiphenylsilyl) peroxide were synthesized and analysis of the products of their thermal rearrangements gave a migratory aptitude series', p-anisyl, 6.0; p-tolyl, 1.1; phenyl, 1.0. These figures are consistent with a free-radical mechanism for the rearrangement. Triphenylsilyl triphenylgermyl peroxide was synthesized and its thermal decomposition occurs exclusively by phenyl-silicon bond cleavage to yield, ultimately, phenol, 0.62, triphenylgermyl moiety, 0,98, and polymeric diphenylsilyl oxide. Reproducible first-order kinetics were obtained with difficulty for 1 half-life for the thermal decomposition of the silylgermyl peroxide: fciao, 0.4; km, 1.0; km, 6.0 X 10~6 sec""1.

No abstract

Die thermische Zersetzung der Bis‐triarylsilyl‐peroxide (I) wird untersucht und verläuft unter Wanderung des Sauerstoffs zu (IIa)‐(IIc) bzw. (IIIb) und (IIIc).