Identification of the Regioselectivity of the Thermal Huisgen 1,3-Dipolar Cycloaddition Reaction between an Azide Derivative and a Synthetic Heterocyclic Alkyne, through a Comparative Study of NMR Spectral Data | Chapter 12 | Theory and Applications of Chemistry Vol. 4
The 1,3-dipolar cycloaddition reaction between
4-(azidomethyl)-4-methyl-2-phenyl-4,5-dihydrooxazole and 9-(prop-2-ynyl)-9H-carbazole,
in toluene at reflux, leads to obtain two regioisomers with different
proportions where the 1,4-regioisomer is generally more prominent than
1,5-regioisomer. The assignment of structures to 1,2,3-triazolic regioisomers
was established in base of a comparative study of NMR spectral data (1H,
13C, 15N and 2D 1H-15N HMBC
spectra) in addition to the elemental analysis and MS data.
Author(s)
Details
Younas Aouine
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