A kind of azo dye compound containing methanesulfonamide group and its preparation method and application
A technology of methanesulfonamide groups and azo dyes, which is applied in the direction of azo dyes, monoazo dyes, chemical instruments and methods, etc., can solve the problems of insufficient sublimation resistance and perspiration resistance of dyes, and achieve good application prospects, Bright shade, excellent sweat resistance effect
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Embodiment 1
[0037]
[0038] step 1
[0039]
[0040] Add 112g of sulfuric acid into a 150ml three-necked flask, stir, slowly add 27g of the compound of formula II-1 below 60°C, stir until clarified, then cool down to 5-10°C and slowly add 31.5g of nitrosyl sulfuric acid (40%), add Incubate the diazo at 5-10°C for 3 hours and wait for coupling.
[0041] step 2
[0042]
[0043] Add 500g of ice-water mixture into a 1000ml beaker, stir, add 2.5g of sulfamic acid, slowly add 33g of the compound of formula (III-1) at 5°C, and then slowly add the coupling components of the above step 1, and finish adding in 10 The temperature was kept at about ℃ for 5-6 hours, and the temperature was directly raised to 65°C, stirred, kept for 1 hour, filtered, washed with water until neutral, separated by column chromatography to obtain 50 g of the compound of formula (I-1), and the HPLC purity was >90%. 1H-NMR (DMSO, 300MHz): 1.15 (9H, m), 3.22 (3H, s), 3.40 (2H, m), 3.46 (2H, m), 3.52 (4H, m), 3.63...
Embodiment 2
[0045] According to the method of Example 1, the following compounds were synthesized
[0046] Table 1
[0047]
Embodiment 3
[0049] The compound of above-mentioned embodiment I-1~I-9 is mixed with MF, dry, and the disperse dye composition that makes is mixed with water respectively and is the disperse dye suspension that mass percent concentration is 1% and 3%, imbibes 20ml disperse dye Mix the suspension with 80m of water, adjust the pH of the dyeing bath to 5 with acetic acid, and then raise the temperature to 60°C. At the same time, put 2g of polyester fiber into it for high-temperature and high-pressure dyeing, heat up to 130°C within 35 minutes, keep it warm for 30 minutes, and cool to Sampling at 80°C.
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