Selectivity Relationships and Substituent-Substituent Interactions in Carbocation-Forming Bromination. The Transition-State Contribution to the ρ Variation

Article abstract of DOI:10.1021/ja00329a034

For arylolefin bromination through benzylic carbocations, X-C6H4-C⁺(R)-CHBr-R', there are 18 reaction constants, ρ^R, describing ring-substituent effect X, which vary from -1.6 to -5.9 depending on R and R' (H, Me, OMe, or Ar').This r