| 摘要 |
<p>The pigments are of formula (I) (in which R1 is hal. nitro, alkoxy, or opt. substd. amino, R2 is the remainder of a 1- or 2-ring aromatic system without further heteroatoms; R3 is an opt. substd. s-triazinyl or pyrimidyl gp. and n is 0, 1 or 2). Pref. R1 is Cl, Br, NO2, alkoxy, amino, alkyl- or dialkyl-amino, phenylamino or acylamino; R2 is -CH=CH-CH=CH- or (II) opt. substd. with Cl, Br, Ch3, alkoxy, phenoxy, NO2, acyl acyloxy or acylamino-, R3 is opt. substd. with Cl, Br, alkyl, alkoxy, phenoxy, amino, alkyl or dialkyl-amino phenylamino or acylamino, and the alkyl or alkoxy gps. are 1-4C. They are suitable as pigments for plastics, paper and printing inks, as dispersion dyes for synthetic fibres nd as vat dyes, with good general fastness.</p> |
