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Abstract

Spectroscopic Study of 1, 3-Dipolar Cycloaddition Reaction of Benzyl Azide and Acrylic Acid

Author(s): Hassan Abdalla Almahy and Eljali Elobied Elhassan

The 1,3-dipolar cycloaddition reaction of benzyl azide with acrylic acid has been studied using B3LYP (3-21G) density functional theory (DFT). It has been demonstrated that the reaction leads to the formation of 1-benzyl-1,2,3-triazoline-4-carboxylic acid at room temperature in the absence of solvent. Upon recrystallization from ethanol the ethyl ester of the product was formed. The structure of the compound was confirmed using IR, UV, 1H NMR, 13C NMR and 2D-NMR. The structure of the other possible isomer has been proposed and both isomers have been studied using Gaussian 03 to predict the possibility of their formation and to calculate the vibrational frequencies and related electronic properties. It has been found that the 1,3-dipolar cycloaddition reaction of benzyl azide with acrylic acid is highly regioselective and spontaneous at 25.15oC and 1 atm. Key words: 1,3-Dipolar cycloaddition, Activation energy, Ben


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  • Geneva Foundation for Medical Education and Research
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