Abstract Solvolysis rates of 2-(aryldimethylsilyl)-1-methylethyl and 2-(aryldimethylsilyl)-1-tert- butylethyl trifluoroacetates were determined conductimetrically in 60%(v/v) aqueous ethanol. The effects of aryl substituents at the silicon atom on the solvolysis rates at 50 C were correlated with equation image parameters of r+= 0.15 with the Yukawa–Tsuno equation, giving ρ values of− 1.5 for both secondary α-Me and α-tert-Bu systems. The ρ values for ...
