Fabric treatment
A technology for fabrics and compositions, applied in fiber processing, textiles and papermaking, etc., can solve problems such as products requiring heat curing
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Embodiment 1
[0165] Embodiment 1: the synthesis of butane tetracarboxylic acid two (2,4,6-trichlorophenol esters)
[0166] Weigh butane tetracarboxylic acid (BTCA) (20.84g, 0.089mol) and 2,4,6-trichlorophenol (35.80g, 0.18mol) in a round bottom flask (250cm 3 )middle. The flask was purged with nitrogen for 15 minutes, then distilled THF (150 cm 3 ). After stirring for 30 minutes under nitrogen, diisopropylcarbodiimide (29.0 cm 3 , 0.18mol). The reaction was allowed to proceed overnight with stirring under nitrogen. The mixture was filtered, washed with THF, and stirred for 1 hour to ensure complete precipitation. The crude product was obtained after removal of the solvent. The crude product was washed several times with dichloromethane, and the solvent in the filtrate was removed to obtain the desired product.
Embodiment 2
[0167] Embodiment 2: the synthesis of two (2,4,5-trichlorophenol esters) of succinate
[0168] Succinic acid (1.5g, 0.013mol) was dissolved in DMSO (50cm 3 )middle. 1,1'-Carbonyldiimidazole (5.0 g, 0.03 mol) was added, and the mixture was stirred at room temperature for 30 minutes. Then 2,4,5-trichlorophenol (5.05 g, 0.026 mol) was added, and the mixture was stirred overnight at room temperature. The mixture was poured into water, filtered, washed with water and then with ether to give a white solid (2.03 g, 33%).
[0169] δ H (500MHz; CDCl 3 )3.07 (4H, s, CH 2 -CH 2 -C(O)-O-) and 7.55 & 7.29(4H, s, Ph).
Embodiment 3
[0170] Embodiment 3: the synthesis of succinic acid bis(N-hydroxysuccinimide ester)
[0171] Dissolve succinic acid (2.0 g, 0.017 mol) in THF (50 cm 3 )middle. 1,1'-Carbonyldiimidazole (5.49 g, 0.034 mol) was added, and the mixture was stirred at room temperature for 30 minutes. N-Hydroxysuccinimide (3.89 g, 0.034 mol) was added and the mixture was stirred overnight at room temperature. The mixture was poured into water, filtered, washed with water, and washed with ether to give a white solid (2.0 g, 38%).
[0172] δ H (500MHz; CDCl 3 )2.59 (8H, s, CH 2 -CH 2 -CO-N-) and 2.89 (4H, s, CH 2 -CH 2 -C(O)-O-)
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