Abstract Reactions of 2, 6-diisopropylaniline and its 4-bromo and 4-thiocyanato derivatives with methyl iodide in dimethylformamide in the presence of potassium carbonate gave exclusively the corresponding N, N-dimethyl-substituted products. Heating of 2, 6- diisopropylaniline and 2, 6-diisopropyl-4-thiocyanatoaniline with methyl iodide without a solvent afforded only N-methyl derivatives.
