Push-pull systems based on 2,4,6-triaryl pyrimidines. 2,4-diaryl-6- and 2-aryl-4,6-bis{4-[(<i>E</i>)-2-arylvinyl]phenyl}pyrimidines

Previously undescribed 2,4,6-triarylpyrimidines were synthesized by condensation of benzamidine and 4-(methyl-, 4-butoxy)benzamidine hydrochlorides with ( E )-1,3-diaryl-2-propen-1-ones in alcohol in the presence of KOH. The latter were reacted with ( E )- N -(2-chlorophenyl)-1-arylmethanimines in the KOH/LiH/DMF system to give 2,4-diaryl-6- and 2-aryl-4,6-bis{4-[( E )-2-arylvinyl]phenyl}-pyrimidines.