Author/Authors :
Rodrigo Abonia، نويسنده , , Rodrigo and Rengifo، نويسنده , , Emerson and Quiroga، نويسنده , , Jairo and Insuasty، نويسنده , , Braulio and Sلnchez، نويسنده , , Adolfo and Cobo، نويسنده , , Justo and Low، نويسنده , , John and Nogueras، نويسنده , , Manuel، نويسنده ,
Abstract :
A rearrangement product or a pyrazolic Trِgerʹs base were unexpectedly obtained when 5-N-(benzotriazol-1-ylmethyl)amino-3-tert-butyl-1-phenylpyrazole was treated with electron-rich alkenes with well protic or Lewis acid catalyst, respectively, when tetrahydropyrazolopyridines were expected according with the benzotriazole methodology. The structure of the products was confirmed by NMR and X-ray diffraction techniques. Mechanisms for their formation are also proposed.
Keywords :
Isomerization , Trِgerיs bases , 5-N-(benzotriazol-1-ylmethyl)amino-3-tert-butyl-1-phenylpyrazole , Benzotriazole
