Preparation method for silver 2,4-pentanedionate and application of silver 2,4-pentanedionate as catalyst
A technology of silver acetylacetonate and acetylacetone is applied in the field of preparation of silver acetylacetonate and achieves the effects of mild conditions and easy operation
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Embodiment 1
[0010] Add 30% hydrogen peroxide (0.2mL) to the silver nitrate solution (0.1mol / L, 100mL), stir at room temperature for 10 minutes, add acetylacetone (100mL) and triethylamine (1mL), raise the temperature to 40℃ and react for 2 hours After filtering, the filtrate is diluted with chloroform and washed with water, the organic layer (chloroform layer) is concentrated under reduced pressure and dried in vacuum to obtain silver acetylacetonate (1.99g, yield is about 96.1%, the UV-visible absorption spectrum is consistent with the literature report) .
Embodiment 2
[0012] Add 30% hydrogen peroxide (0.2mL) to the silver nitrate solution (0.1mol / L, 100mL), stir at room temperature for 15 minutes, add acetylacetone (100mL) and triethylamine (1mL), heat up to 45°C and react for 1.5 hours After filtering, the filtrate was diluted with chloroform and washed with water, and the organic layer (chloroform layer) was concentrated under reduced pressure and dried in vacuum to obtain silver acetylacetonate (1.98 g, yield: 95.7%).
Embodiment 3
[0014] Acetylacetone (100mL) and triethylamine (1mL) were added to the silver nitrate solution (0.1mol / L, 100mL), heated to 40°C and reacted for 2 hours, filtered, the filtrate was diluted with chloroform and washed with water. The organic layer (chloroform Layer) After concentration under reduced pressure and vacuum drying, silver acetylacetonate (283 mg, yield is about 13.7%) is obtained.
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