Convenient Synthesis of 2,7-Diamino-9,9- bis(4-aminophenyl)fluorene

Abstract

For the synthesis of 2,7-diamino-9,9-bis(4-aminophenyl)fluorene 2 , first 2,7-dinitro-9,9-bis(4-aminophenyl)fluorene 1 was synthesized by the reaction of 2,7-dinitro-9-fluorenone with aniline and aniline hydrochloride. 2 was obtained by the reduction of 1 with hydrazine hydrate and 10% palladium on carbon.