4984-85-4Relevant articles and documents
Reaction of dialkylmagnesium with carbon monoxide. II
Sobota, Piotr,Nowak, Marek
, p. 1 - 6 (1988)
Reaction of MgEt2 with CO gives Et2CO, Et2CHOH, EtCOCH(OH)Et, EtCOCHEt2 and EtCOC(OH)Et2.The qualitative and quantitative composition of the product mixture was found to be dependent on the MgEt2 concentration and the polarity of solvent.The kinetic results reveal that reaction of CO with MgEt2 and with its dissociation product MgEt3-, followed by the formation of the Et2CO and EtCOCHEt2, respectively.The other compounds are formed in the subsequent reactions.The rate constants of formation of pentanone-3 and 4-ethylhexanone-3 are equal k1 0.292 s-1 and k2 0.450 s-1, respectively.
Development of Imidazoline-2-one Derivatives as Potential Antifungal and Anthelminthic Agents: in silico and in vitro Evaluation
Chilamakuru, Naresh Babu,Mallela, Vijaya Jyothi,Peraman, Ramalingam,Shaik, Shakir Basha,Simham, Venu,Singirisetty, Triveni
, p. 423 - 433 (2021/11/24)
Based on appropriate values of synthetic accessibility concerning from ADMET properties and docking scores by docking against proteins 3OZU and 1OJ0, a series of 4,5-diphenyl-1H-imidazol-2-ones (I1?15) were synthesized. The key intermediate, 2-hydroxy-1,2-disubstitutedethanones (E1?15) were prepared by benzoin condensation using 2:1 ratio of aromatic aldehydes and thiamine in the presence of alkali. Further, these cyclized ethanones (E1?15) were treated with urea to yield 4,5-diphenyl-1H-imidazol-2-one derivatives (I1?15) and were characterized by IR,1H NMR, Mass spectra, and CHNO analysis. The synthesized compounds were screened for their anthelmintic potential on Pheretima Posthuma along with standard albendazole, and antifungal activity (minimum inhibitory concentration method) on Candida albicans and Aspergillus niger along with standard miconazole. The results revealed that among all the tested compounds I3, I4, and I7 show considerable synthetic accessibility, docking scores, anthelminthic, and antifungal activity.
Preparation Method for 2,3-pentanedione
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Paragraph 0018; 0019; 0024; 0025; 0029, (2019/04/25)
A preparation method for 2,3-pentanedione, including the steps of adding one or both of 3-hydroxy-2-pentanone and 2-hydroxy-3-pentanone into water and conducting mixing, and introducing ozone at the temperature of 3-20° C. for a reaction to obtain 2,3-pentanedione. The synthesis process of the present invention uses ozone for oxidizing a mixture containing 3-hydroxy-2-pentanone and 2-hydroxy-3-pentanone, acetic acid is used as a cocatalyst, reaction conditions are mild, the operation process is simple, the product yield is high, and the cost is low.
Synthesizing method of 3,4-heptadione
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Paragraph 0018; 0027; 0031; 0035, (2017/09/18)
The invention provides a synthesizing method of 3,4-heptadione. The synthesizing method comprises the following steps of (1) using propionaldehyde and butyraldehyde as raw materials, adding a main catalyst, and reacting under the alkaline condition, so as to synthesize 4-hydroxyl-3-heptanone; (2) mixing the 4-hydroxyl-3-heptanone, sulfuric acid and an oxidant to oxidize, so as to obtain the 3,4-heptadione. The synthesizing method of the 3,4-heptadione has the advantages that the main raw materials are the propionaldehyde and butyraldehyde, the obtaining of the raw materials is easy, the cost is low, and the production cost is reduced.