Synthesis and Electronic Properties of Phenothiazinyl Primary Amines

Phenothiazinyl primary amines were synthesized in moderate to excellent yields from cyano (oligo)phenothiazines by reduction with LiAlH4 in diethyl ether or with nBuNBH4 in dichloromethane. All representatives show first reversible oxidation waves, they are UV absorbing and dimers emit blue-green light upon UV excitation with substantial quantum yield.