1092684-78-0Relevant articles and documents
2-Nitrosobenzothiazoles: useful synthons for new azobenzothiazole dyes
Faustino, Hélio,El-Shishtawy, Reda M.,Reis, Lucinda V.,Santos, Paulo F.,Almeida, Paulo
, p. 6907 - 6909 (2008)
Novel azobenzothiazole dyes have been synthesized by condensation of 2-nitrosobenzothiazole and 6-nitro-2-nitrosobenzothiazole with aniline, anthranilic acid, 3-hydroxymethylaniline, 2-, 3- and 4-chloroaniline, 4-fluoroaniline, 4-iodoaniline or 4-nitroaniline. The new synthetic approach described is advantageous over the classic diazotization process commonly used for the preparation of related disperse dyes, since the presence of an electron-donating group at the para-position, or equivalent, of the coupling component is no more a pre-requisite for the success of the condensation reaction.
