Yellow red- 3-imino-indolene dyes - for light-fast dyeing of polyesters

    公开(公告)号:DE2142245A1

    公开(公告)日:1973-03-01

    申请号:DE2142245

    申请日:1971-08-24

    Applicant: BASF AG

    Abstract: Dyes are of formula (I): (where X is the residue of a methylene-active cpd. an aromatic or heterocyclic primary amine, R1 is H or 1-4C alkyl, R2 is 1-4C alkyl, phenyl opt. substd. by Cl, Br, OH, CH3 and/or CH3O, indoyl-2, 2-phenyl indolyl-3- or 2,4-dihydroxyquinolyl-3-gp. or R1 and R2 together with the methylene C atom form a 6-membered carbocycle or a 5- or 6-membered heterocycle opt. joined to a benzene nucleus). Prepared e.g. by condensing a cpd. (I) where the -N=CR1R2 gp. is replaced by H, with a hydrazone H2N-N=CR1R2. e.g. a yellow dye is obtained by condensing 1-(cyano-carbonamido)-3-imino-isoindolene with 3-acetyl-2:4-dihydroxy-quinoline hydrazone.

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