Synthesis and Properties of Amide Derivatives of 4-N,N-Dialkylaminoazobenzenes

Several disperse dyes, derivatives of 4-N,N-dialkylaminoazobenzenes having acetylamino, carbamyl, phthalimide or naphthalimide substituents have been prepared. Their spectral properties and reaction to heat were determined, and their usefulness was evaluated in terms of sublimation fastness