T. Kálai, M. Balog, J. Jekoe
Oct 1, 1998
Citations
0
Influential Citations
19
Citations
Journal
Synthesis
Abstract
: b -Bromo- a , b -unsaturated electron withdrawing group containing dihydropyrrole nitroxides 2 , 3 , 4b , and 5b were used for synthesis of dihydropyrrol-1-yloxyl radicals annulated to thi-azepine 7 , 13 and thiophene 14a–g rings. The 4-bromo-3-formyl-substituted 2,5-dihydropyrrole 5b was also a synthon for the synthesis of 3,4-disubstituted nitroxides 17a–d , 18a–d , 19a–c , 20a–c .