A kind of fluorescent surfactant and preparation method thereof
A surfactant and fluorescence technology, applied in the direction of surface active detergent composition, non-ionic surface active compound, chemical instrument and method, etc., can solve the problems of uncommon raw materials, complicated operation, and inability to monitor the cleaning status of clothes in real time
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Embodiment 1
[0047] The chemical structure of the prepared product was further tested by NMR (Varian INOVA 500MHz). The sample preparation method is as follows: add a small amount of dry azobenzene powder into an NMR tube, add deuterated dimethyl sulfoxide (DMSO-d6) to dissolve, ultrasonically disperse evenly, and perform testing and characterization. Test range: 0~16ppm.
[0048]The molecular weight of the prepared product was tested by high-resolution mass spectrometry (Waters Xevo G2 QTof).
[0049] 1) Add 0.091 mol of N-bromosuccinimide dissolved in 20 ml of tetrahydrofuran dropwise to 0.2 mol of 10-ethylphenothiazine in an ice bath, and pour it into ice water for extraction after reacting for 4 hours. Anhydrous magnesium sulfate was used to remove water, and the obtained liquid was dried by a rotary evaporator. After drying, it was separated by a chromatographic column. The eluent used was dichloromethane:petroleum ether with a volume ratio of 10:1.
[0050] 2) Stir 0.21mol aluminum...
Embodiment 2
[0054] 1) Add 0.091 mol of N-bromosuccinimide dissolved in 20 ml of tetrahydrofuran dropwise to 0.2 mol of 10-ethylphenothiazine in an ice bath, and pour it into ice water for extraction after reacting for 4 hours. Anhydrous magnesium sulfate was used to remove water, and the obtained liquid was dried by a rotary evaporator. After drying, it was separated by a chromatographic column. The eluent used was dichloromethane:petroleum ether with a volume ratio of 10:1.
[0055] 2) Stir 0.21mol aluminum trichloride (dichloromethane as solvent) and 0.2mol 4-hexylphenol under ice bath for 45min, keep ice bath condition, mix 0.15mol 3,7-dibromo-10-ethylphen Thiazine was added to the above mixture, and after reacting for 6 hours, the solid product was obtained by rotary evaporation at 50°C, which was finally separated by a chromatographic column to obtain 0.14 mol of the product. The eluent was dichloromethane:petroleum ether with a volume ratio of 3:1.
[0056] 3) Add 0.1mol of the targ...
Embodiment 3
[0059] 1) Add 0.091 mol of N-bromosuccinimide dissolved in 20 ml of tetrahydrofuran dropwise to 0.2 mol of 10-ethylphenothiazine in an ice bath, and pour it into ice water for extraction after reacting for 4 hours. Anhydrous magnesium sulfate was used to remove water, and the obtained liquid was dried by a rotary evaporator. After drying, it was separated by a chromatographic column. The eluent used was dichloromethane:petroleum ether with a volume ratio of 10:1.
[0060] 2) Stir 0.21mol aluminum trichloride (dichloromethane as solvent) and 0.2mol 4-decylphenol under ice bath for 45min, keep ice bath condition, mix 0.15mol 3,7-dibromo-10-ethyl Phenothiazine was added to the above mixture, and after reacting for 6 hours, the solid product was obtained by rotary evaporation at 50°C. Finally, 0.13 mol of the product was obtained through chromatographic column separation. The eluent was dichloromethane:petroleum ether with a volume ratio of 3:1.
[0061] 3) Add 0.1mol of the targe...
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