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Synthetic method for Beta-diketone metal complex
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A technology of metal complexes and synthesis methods, applied in the direction of magnesium organic compounds, calcium organic compounds, zinc organic compounds, etc., can solve the problems of many by-products, poor safety, high cost, etc., and achieve short reaction time, improved safety, and production The effect of cost reduction
Inactive Publication Date: 2012-07-04
SHENZHEN AIMSEA IND
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[0013] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a synthesis method of β-diketone metal complexes, which aims to solve the problems of large pollution, many by-products, Poor security and high cost
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Embodiment 1
[0044] Add 100g of acetylacetone (HACAC, 1.0mol) and about 400g of water into the reactor, then stir and heat to 60℃, increase the stirring speed, slowly add 28g of calciumoxide (CaO, 0.5mol), and react at constant temperature for 30 min. After the product was filtered and dehydrated, it was dried to constant weight at 105°C under normal pressure to obtain a white powdery product with a yield of 99.2%. After analysis and determination, the mass percentages of Ca, C, and H in the product were 16.67%, 50.25% and 5.92%, with the molecular formula Ca(C 5 H 7 O 2 ) 2 It is consistent (calculated values of Ca, C, and H content are 16.81%, 50.42%, 5.89%).
Embodiment 2
[0046] Add 100g of acetylacetone (HACAC, 1.0mol) and about 400g of water to the reactor, then stir and heat to 60℃, increase the stirring speed, slowly add 40.5g of zincoxide (ZnO, 0.5mol), and react at a constant temperature for 30 min. After the reaction product was filtered and dehydrated, it was dried to constant weight at 105°C under normal pressure to obtain a white powder product with a yield of 99.1%. According to analysis and determination, the mass percentages of Zn, C, and H in the product were 22.93%. , 42.56% and 5.63%, and the molecular formula Zn(C 5 H 7 O 2 ) 2 .H 2 O is consistent (the calculated values of Zn, C, and H content are 23.14%, 42.71%, 5.70%, respectively).
Embodiment 3
[0048] Add 150g of acetylacetone (HACAC, 1.5mol) and about 600g of water into the reactor, then stir and heat to 60℃, increase the stirring speed, slowly add 39g of aluminum hydroxide (Al(OH) 3 , 0.5mol), react at a constant temperature for 30 min, the reaction product is filtered and dehydrated, dried to constant weight at 105°C under normal pressure, to obtain a white powdery product with a yield of 99.3%. The analysis determined that Al, C, H The mass percentages in the product are 8.28%, 55.48% and 6.45%, respectively, and the molecular formula Al(C 5 H 7 O 2 ) 2 It is consistent (calculated values of Al, C, and H content are 8.34%, 55.56%, 6.49%, respectively).
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Abstract
The invention discloses a synthetic method for Beta-diketonemetal complex, which comprises the steps of mixing Beta-diketone with water; slowly adding metallic oxide or hydroxide according to stoichiometric ratio under the condition that the rotating number is 50-2500r / min and the temperature is higher than the melting point of the Beta-diketone; reacting under the condition that the temperature is higher than the melting point of the Beta-diketone and obtaining a reaction product; and treating the reaction product so as to obtain the Beta-diketone metal complex. The method has simple steps, is short in reaction time and small in production device investment, takes the water as reaction medium, greatly improves the safety, obviously reduces energy consumption, greatly reduces product cost and can be widely applied to synthesis of various Beta-diketone metal complexes.
Description
Technical field [0001] The invention relates to the field of synthesis of β-diketone metal complexes, in particular to a method for synthesizing β-diketone metal complexes using water as a reaction medium. Background technique [0002] β-Diketone is a kind of organic compound whose structure can be represented by general formula (I), [0003] Ⅰ: , Where R 1 , R 2 It can be the same or different groups. [0004] β-diketone metal complexes are a class of metal coordination compounds that can be represented by the general formula (II), [0005] Ⅱ: , Where R 1 , R 2 It can be the same or different groups. M represents a metal element, and n is equal to the number of metal ion charges. [0006] The β-diketone metal complex can rapidly replace allyl chloride generated during the processing of PVC plastics through alkylation reaction, interrupting and shortening the molecular chain of conjugated polyolefins, and is excellent in improving the initial coloring of PVC At the same time, β-dike...
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