Fluorescent surfactant and preparation method thereof
A surfactant and fluorescence technology, applied in surface-active detergent compositions, non-ionic surface-active compounds, chemical instruments and methods, etc., can solve the problems of inability to monitor laundry cleaning conditions in real time, complicated operations, and uncommon raw materials.
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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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