Abstract
Abstract The rates of β-aryl migration in vinyl cations were determined by laser flash photolysis of the corresponding vinyl bromides in acetonitrile. β-Anisyl migration occurred very rapidly (k≥108 s−1). β-Phenyl migration in Ph(An)C=\overset+C-Ph→An-\overset+C=CPh2 was relatively slow process (k=7.4 × 106 s−1 at 273 K).
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