Cycloaddition of Aroyl/Acylketene S,N-Acetals with Tosyl Azide: Synthesis of Novel 4-Aroyl/Acyl-5-amino-1H-1,2,3-triazoles and 3,4-Annulated 1,2,3-Triazoles

Article abstract of DOI:10.1055/s-1988-27728

Cycloaddition of aroyl- and acylketene S,N-acetals 1a-l with tosyl azide 2 under alkaline conditions affords novel regiospecifically substituted 4-aroyl/acyl-1-phenyl/alkyl-5-tosylamino-1H-1,2,3-triazoles 5a-l.Some of them (5a-e, g, h) are shown to underg