(Solution) - When toluene is sulfonated concentrated H2SO4 at room temperature predominantly -(2025 Original AI-Free Solution)
Paper Details
When toluene is sulfonated (concentrated H2SO4) at room temperature, predominantly (about 95% of the total) ortho and para substitution occurs. If elevated temperatures (150-200(C) and longer reaction times are employed, meta (chiefly) and para substitution account for some 95% of the products. Account for these differences in terms of kinetic and thermodynamic pathways. (m-Toluenesulfonic acid is the most stable isomer.)