![]() The protocol offers several advantages such as Reactions on microwave irradiations (MWI) resulted inĮnhancement of yield and reaction rates. Dulawat*Ĭhalcones have been synthesized under microwave irradiation by Claisen-SchmidtĬondensation between substituted acetophenone and appropriately substituted benzeldehydes Singh, Parul Sharma, Laxmi lal Dangi, Shiv S. A suitable mechanism has been proposed.ģ Microwave assisted improved synthesis ofĬhalcones under microwave irradiation and theirĪntibacterial activity, Vikas Tiwari, Jayant P. The reaction is subjected to steric acceleration by the The positive value of h suggests the presence of an electron-deficient reactionĬentre in the rate-determining step. Oxidation of ortho- and meta- substituted compounds, which display a greater dependence on Para-substituted benzaldehydes is more susceptible to the delocalized effect than is the Terms of Charton’s triparametric LDR equation, whereas the oxidation of ortho-substitutedīenzaldehydes were correlated well with tetraperametric LDRS equation. Oxidation of para- and meta-substituted benzaldehydes showed excellent correlation in Of solvent was analysed using Taft's and Swain's multi-parametric equations. The reaction was studied in nineteen different organic solvents and the effect The oxidation of duteriated benzaldehyde exhibits substantial primary kinetic Reaction is promoted by hydrogen ions the hydrogen-ion dependence has the form kobs= a The reaction is of first order with respect to chlorochromate and aldehydes. Oxidation of thirty six monosubstituted benzaldehydes by benzyltriethylammoniumĬhlorochromate in dimethyl sulphoxide, leads to the formation of corresponding benzoicĪcids. ![]() All the synthesized compounds were tested for their in vitroĢ Structure-reactivity correlation in the oxidation ofīenzyltriethylammonium chlorochromate, Sonu Barthoraa, Deepika Baghmara, Mamta Gilla, A. Reaction rate is brought down from hours to minutes along with improved yield as compared Using basic alumina for its catalytic role as well as energy transfer medium is described. 1 Microwave assisted solid support synthesis of some3, 5-Diaryl- D2 -isoxazolines as potential antibacterialĪgents, Sheetal Shakhawat, Anju Devpura, Jayant P.Sing, Parul Sharma, Laxmi Lal Dangi and Shiv Sing Dulawat*Īn environmentally benign microwave assisted one pot approach for the synthesis of someģ,5-diaryl-D2 -isoxazolines from substituted chalcones with hydroxylamine hydrochloride
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