Efficient and Convenient Route for the Synthesis of Some New Antipyrinyl Monoazo Dyes: Application to Polyester Fibers and Biological Evaluation
Table 1
Optical measurements of compounds 2–10.
Dye
R%
2
56.11
−0.48
5.03
88.96
5.05
95.44
—
—
—
—
—
3
35.78
4.48
12.63
78.49
13.4
70.47
−10.47
8.35
−24.97
28.33
1.15
4
36.41
−3.59
12.87
8.09
13.36
105.58
−80.87
8.31
10.14
81.93
1.11
5
22.34
−4.67
18.42
86.57
19.0
104.24
−2.39
13.95
8.80
16.67
2.70
6
30.37
−4.73
13.8
87.57
14.59
108.92
−1.39
9.54
13.48
16.57
1.60
7
52.43
−1.19
4.98
87.98
5.12
103.39
−0.98
0.07
7.95
8.01
0.43
8
52.43
−0.96
6.10
88.03
6.18
98.94
−0.93
1.13
3.50
3.79
0.43
9
28.68
4.30
13.08
76.93
13.77
71.80
−12.03
8.72
−23.64
27.92
1.77
10
32.43
3.89
13.34
81.85
13.9
73.75
−7.11
8.85
−21.69
24.48
1.41
”: the lightness ranging from 0 to 100 (0 for black and 100 for white). “”: the red-green axis, (+) for red, zero for gray, and (−) for green. “”: the yellow-blue axis, (+) for yellow, zero for gray, and (−) for blue.
