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A general method for the evaluation of the kinetics of the solution phase bromination of alkanes and substituted alkanes is presented. The model used considers reversible transfer reactions of the radicals formed with both hydrogen bromide and hydrogen tribromide. Cage reversal of the geminate radical – hydrogen bromide pair and reversal with hydrogen tribromide are used to rationalize the differences observed between the vapor and solution phase kinetics.The method is applied to the bromination of 1-chlorobutane.

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Die Photolyse eines Gemisches aus der Azoverbindung (I) und dem Thiophenol (II) in den Toluolen (III) ergibt außer Stickstoff die Kohlenwasserstoffe (IV)‐(VI) und das Sulfid (VII).