Preparative Synthesis of 4,4'-Bis[5-alkyl(aryl)benzoxazol-2-yl]biphenyls
摘要:
An attempt was made to prepare 4,4'-bis[5-alkyl(aryl)benzoxazol-2-yl]biphenyls by reaction of dimethyl 4,4'-biphenyldicarboxylate with substituted o-aminophenols in a high-boiling solvent in the presence of boric acid.