摘要:
By coupling of aryldiazonium salts 5 with N,N-disubstituted 2-amino-5H-selenazoles 4 deeply coloured 5-arylazo-substituted 2-amino-selenazoles 6a-6l have been prepared and their solvatochromic properties deter-mined by means of UV/Vis spectroscopy, and compared with the ones of several other arylazosubstituted N,N'-dialkylanilines 7a-7d, 2-(N,N-dialkylamino)-thiophenes 8a-8e, and 2-(N,N-dialkylamino)-thiazoles 9a-9c.