Microwave assisted synthesis of triazoloquinazolinones and benzimidazoquinazolinones

• Aboul-Fetouh E. Mourad,
• Ashraf A. Aly,
• Hassan H. Farag and
• Eman A. Beshr

Beilstein J. Org. Chem. 2007, 3, No. 11, doi:10.1186/1860-5397-3-11

• . Analysis of the 1H NMR spectra of 4a-d provided answers on the chemoselectivity of the cyclocondensation. The δ values of the most carbon signals could be determined and assigned to the corresponding carbon atoms. For example, the 13C NMR spectrum of compound 4b revealed fourteen distinctive carbon signals