Abstract Kinetic studies were carried out on the aminolysis of propargly and 1- methylpropargyl arenesulphonates in acetonitrile at 45· 0 C. The cross-interaction constants, ρ xz and β xz, are similar to, but smaller than, those for the SN 2 processes at other primary and secondary carbon centers. Compared with the allyl series, the smaller magnitude of ρ xz and β xz reflects a looser transition state, which in turn leads to a lower rate despite the ...
