76486-13-0Relevant academic research and scientific papers
EFFECT OF BENZANNELLATION ON THE COLOR OF p-AMINOAZO COMPOUNDS
Gorelik, M. V.,Lomzakova, V. I.
, p. 1641 - 1646 (2007/10/02)
Monoazo dyes containing a naphthalene ring were obtained by diazotization of 1-amino-4-nitro-2-naphthonitrile, 3-amino-5-nitronaphthoisothiazole, and 3-amino-5-nitrobenzoindazole and coupling of the diazonium salts with N,N-dialkyl derivatives of anilines.Their visible spectra were compared with the spectra of the corresponding benzene analogs.Annellation of the benzene ring in the residue of the diazo component gives rise to a bathochromic or hypsochromic shift, depending on the structure of the dye.The nature of the observed effects is discussed.
