Cycloaddition of Sodium Azide to polarized Ketene S,S- and S,N-Acetals: Synthesis of Novel Substituted Triazole and Tetrazole Derivatives

Article abstract of DOI:10.1055/s-1988-27604

Thermal <3+2> cycloaddition of aroylketene dithioacetals 1a-e with sodium azide affords novel 4-aroyl-5-methylthio-1H-1,2,3-triazoles 3a-e.The corresponding S,N-acetals 5a-m derived from primary amines react with sodium azide through different pathway inv