Question

1,3–Dimethoxybenzene (below) is very reactive toward electrophilic aromatic substitution. Draw a complete mechanism for the following nitration reaction making sure you include details of formation of the required electrophile and all possible delocalized structures for the intermediate cation. Provide a brief explanation for why only the pictured product is formed:

Answer 1

In electrophilic aromatic substitution reaction, as OMe are the donating groups, therefore incoming NO2 electrophile will go on the ortho and para to the methoxy group. Another forming products are not that much stable. Bcoz three group are at the adjacent positions. Therefore this product is not forming.