Arylation of adamantanamines: III. Palladium-catalyzed arylation of adamantane-1,3-diyldimethanamine and 2,2′-(adamantane-1,3-diyl)diethanamine
摘要:
Palladium-catalyzed arylation of adamantane-1,3-diyldimethanamine and 2,2'-(adamantane-1,3-diyl)diethanamine with isomeric bromochloro- and dibromobenzenes was studied. The yields of N,N'-diarylation products depend on the initial diamine and dihalobenzene structure. Side reactions were revealed, which reduced the yield of the target products. The arylation of 2,2'-(adamantane-1,3-diyl) diethanamine gives the corresponding N,N'-diaryl derivatives with better yield. The possibility for synthesizing unsymmetrical N, N'-diaryl derivatives of 2,2'-(adamantane-1,3-diyl) diethanamine was demonstrated.