Dn. Kojevnikov et al., EXTENSIVE DEGRADATION OF THE HETEROCYCLIC SYSTEM IN THE REACTION OF 1,2,4-TRIAZOLO[5,1-C]TRIAZIN-7(4H)-ONES WITH RESORCINOL AND ITS DERIVATIVES, Mendeleev communications, (4), 1996, pp. 152-153
2-R(1)-1,2,4-triazolo[5,1-c]triazin-7(4H)-ones react with resorcinols
in trifluoroacetic acid yielding (2)-2',4'-dihydroxyphenyl)benzo[b]fur
an-2(3H)-one. The reaction with resorcinol ether gave 2,2-bis(2',4'-di
methoxyphenyl)acetic acid.