H. Wamhoff, M. Tzanova
2003
Citations
0
Influential Citations
4
Citations
Journal
Collection of Czechoslovak Chemical Communications
Abstract
The convergent synthesis of ethyl 5-chloro- and 5-amino-3-aryl-1,2,4-triazinecarboxylates 9a - 9d and 10a - 10d as well as of 5-amino-3-aryl-1,2,4-triazine-6-carboxamides 11a - 11d is described. Compounds 9 , 10 and 11 are powerful key compounds for cyclization reactions to the novel pyrimido[4,5- e ][1,2,4]triazines 13d , 14c , 14d , 15c and 17a , 17d .