Synthesis of 2-Aryl[1,2,4]triazolo[1,5-<i>a</i>]pyrimidines
作者:K. Kamala、P. Jayaprasad Rao、K. Kondal Reddy
DOI:10.1246/bcsj.61.3791
日期:1988.10
2-(Aroylamino)pyrimidines (4) have been converted into 1-(2-pyrimidyl)-5-aryl-1H-tetrazoles (6) by treatment with PCl5 followed by azidolysis in aqueous acetone solution. Pyrolysis of 6 in decalin gave 2-aryl[1,2,4]triazolo[1,5-a]pyrimidines (8). A reasonable pathway for the formation of 8 from 6 is suggested. Structures of all the compounds have been established by elemental analysis and spectral