721than about six or seven carbon atoms, the randomisation of hydrogen atoms over the whole chain is unimportant but the elimination of olefins proceeds by complicated reaction steps not yet known. We thus think that, in its present state, the validity of the quasi-equilibrium theory for the prediction of the fragmentation pattern of alkyl radical ions is doubtful.We would like to express our thanks to Mr. G. Philippossian for his many hints on synthesis and to the Swiss National Foundation for the Encouragement of Research for a grant.
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