Summary
Allylaromatics undergo isomerization by the use of chlorodicarbonylrhodium(I) dimer as the metal catalyst and phase transfer catalysis conditions [benzene or methylene chloride as the organic phase, aqueous NaOH, and a quarternary ammonium salt as the phase transfer catalyst]. Isomerization of allyl amines and sulfones occurred as well, but the rhodium(I) complex was not required in the latter case.
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Alper, H., Hachem, K. Phase transfer and rhodium (I) catalyzed isomerization of allylaromatics and cognate systems. Transition Met Chem 6, 219–220 (1981). https://doi.org/10.1007/BF00618227
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DOI: https://doi.org/10.1007/BF00618227