| 摘要 |
<p>New azo cpds. are of formula (I). In (I), R1 is (ar)alkyl, alkenyl or (hetero)aryl; R2 is H or alkyl; R3 is H, alkyl, a halogen, CN, OR' or C COOR'; R4 is H, (ar)alkyl, aryl or cycloalkyl, R5 is H (ar)alkyl or alkenyl; Y is CN, halogen, CF3, NO2 or SO2R1; Y1 is halogen or CN. X1 is H or a substit. having a para equiv. of -0.3 to +0.3 (Hammet); X2 is H, halogen, or OR1, COOR1, COOH, NR2CHO, CF3, NR2COR1; N(COR1)2, NR2SO2R1 or NR2SO2N(R2)2, X3 is alkyl or X2; and X1 forms with X2 and X3 the gp.- and R4, as well as R4 and R5, can be joined by an alkenyl chain, the alkyl, aralkyl, alkenyl, aryl and heteroaryl residues mentioned here alone optionally carrying non-ionic or COOH substs. Red to violet colourants for spin dying and mass colouring synthetic textiles such as polyamides and partic. polyesters such as polyethylene terephthalate. They can also be used for cellulose acetates, cellulose triacetate, polyurethanes, polyolefines and hydrocarbons.</p> |
