Unusual conversions of a zwitterionic polyfused triazine with electron-deficient dienophiles
作者:Zsuzsanna Riedl、György Hajós、András Messmer、Antal Rockenbauer、László Korecz、Gert Kollenz、Walter M. F. Fabian、Karl Peters、Eva-Maria Peters
DOI:10.1039/a608344g
日期:——
Investigation of reactions of the zwitterionic polycycle 1 with
electron-deficient dienophiles revealed that Michael addition products 3
and 4, selective cycloadducts 2 and, in a special case, a stable dimeric
radical cation 5 are formed.