| 摘要 |
<p>Compds. have the formula: where D is a (substd.) aromatic-carbocyclic or aromatic-heterocyclic residue, R is H or an organic residue, R1 is H or a (substd.) hydrocarbon residue, a (substd) heterocyclic residue or a (substd) amino group, A- is an anion, K+ has the formula where R2 and R3 are (substd) (cyclo)alkyl groups or form, with R2 and the N atom a heterocyclic group, R4 and R5 are H or (substd) (cyclo)alkyl groups, R6 and R7 are (substd) hydrocarbon residues, and R8 is a (substd) (cyclo)alkyl group, and where R4 and/or R3 with R5 and the N atom, R6 and R7, or R6, R7 and R8 with the N atom, may form heterocyclic groups. The dyes are prepared in known way. The dyes can be used on polyacrylonitrile, polyamides, polyesters, compositions contg. natural materials or resins, synthetic compositions, leather or paper. The dyes have good solubility in water and organic solvents, and have good pH stability. The dyeings are stable to washing perspiration, sublimation, pleating, ironing, steaming, (sea) water, dry cleaning and solvents. Certain intermediates are optical brighteners and insecticides.</p> |
