▎ 摘　　要

NOVELTY - Substituted aryl compounds (I) are new. USE - (I) are useful for producing nanostructures, preferably nanoribbons i.e. graphene or graphene nanoribbons. ADVANTAGE - (I) provide nanoribbons with high yield and without any harsh reaction conditions. DETAILED DESCRIPTION - Substituted aryl compounds of formula (I) are new. R1=H, halo, aliphatic, (hetero)aryl or heteroaliphatic; R1a=aryl (optionally substituted with at least one of aliphatic, alkoxy, amide, amine, thioether, haloalkyl, NO2, halo, silyl, cycloaliphatic or aryl) or an electron donating group; n=1-3; and m=0-1000. An INDEPENDENT CLAIM is also included for the preparation of (I).