Chemistry of furazano[3,4-b]pyrazine. 1. Synthesis and thermodynamic appraisal of 4,8-dihydrodifurazano[3,4-b,e]pyrazine and its derivatives

Article abstract of DOI:10.1007/BF02256764

The thermodynamic stability of the antiaromatic 4,8-dihydrodifurazano[3,4-b,e]pyrazine (I) was studied by a quantum-chemical method. The molecular structure was investigated by x-ray crystallographic analysis, and the aromaticity index of the compound was