Aprotic solvents 12 Aromatic nucleophilic substitution 10 Dimer nucleophile mechanism 6 Dimer nucleophile mechanisms 6 Dimers 6 Hydrogen bonds 6 Mixed aggregates 6 Nucleophiles 6 Solvents 6 Toluene 6 Aromatic compounds 4 Aromatic nucleophilic substitutions 4 Hydrogen 4 aprotic solvents 4 aromatic nucleophilic substitution 4 dimer nucleophile mechanism 4 1 chloro 2,4 dinitrobenzene 2 1 fluoro 2,4 dinitrobenzene 2 1-chloro-2 , 4-dinitrobenzene 2 2- GUANIDINOBENZIMIDAZOLE 2 2-GUANIDINOBENCIMIDAZOL 2 2-Guanidinobenzimidazole 2 AROMATIC NUCLEOPHILIC SUBSTITUTION 2 Ab initio density functional theories (DFT) 2 Ab-initio calculations 2 Aggregates 2 Amine aggregation states 2 Amines 2 Amino acids 2 Aromatization 2