Tag: 1H-15N correlation.

Science Press Release Distribution Services

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

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…
Read more


March 16, 2020 0

Study of the Regioselectivity of the N-alkylation Reaction of 1H-1,2,4-Triazole with an O-tosyl Derivative, Using Two-Dimensional NMR Spectroscopy

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…
Read more


March 16, 2020 0