Probe compound for mercury ion detection as well as preparation method and application thereof
A mercury ion and compound technology, applied in the field of analysis and detection, can solve the problems of low light penetration, background interference, and large light damage, and achieve the effects of high yield, mild reaction conditions, and highly selective fluorescence detection.
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Embodiment 1
[0051] Accurately weigh 170.2 mg of DCM-CHO-OH, 21.6 mg of 1,3-propanedithiol and 71.0 mg of boron trifluoride ether in a dry round bottom flask, then add 20 ml of dichloromethane and stir at 30 °C for 12 Hour; After the reaction, the solution was dark red, and TLC monitoring found that most of the raw material DCM-CHO-OH had not reacted completely. The reaction solution was extracted, washed with water and concentrated under reduced pressure, and then separated by column chromatography to obtain a brick yellow product DCM-Hg (yield 28%).
Embodiment 2
[0053] Accurately weigh 170.2 mg of DCM-CHO-OH, 54.1 mg of 1,3-propanedithiol and 71.0 mg of boron trifluoride ether in a dry round bottom flask, then add 20 ml of dichloromethane and stir at 30 °C for 12 hour; after the reaction, the solution was dark red, and TLC monitoring found that the raw material DCM-CHO-OH was substantially completely reacted. The reaction solution was extracted, washed with water and concentrated under reduced pressure, and then separated by column chromatography to obtain a brick yellow product DCM-Hg (yield 88%).
Embodiment 3
[0055] Accurately weigh 170.2 mg of DCM-CHO-OH, 108.2 mg of 1,3-propanedithiol and 71.0 mg of boron trifluoride ether in a dry round bottom flask, then add 20 ml of dichloromethane and stir at 30 °C for 12 hour; after the reaction, the solution was dark red, and TLC monitoring found that the raw material DCM-CHO-OH had reacted completely, but there were impurity spots in the product. The reaction solution was extracted, washed with water and concentrated under reduced pressure, and then separated by column chromatography to obtain a brick yellow product DCM-Hg (yield 41%).
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