TY JOUR TI Synthesis of substituted 1,3-dihydropyrrolo[3,4-F]indole-2,5,7-trions KW sodium azide KW 5-nitro-4-phenacylphthalonitriles KW sulphuric acid KW Schmidt rearrangement KW isoindole-1,3-diones JO From Chemistry Towards Technology Step-By-Step AU Chirkova, Z.V. AU Filimonov, S.I. AU Makarova, E.S. AU Kabanova, M.V. PY 2022 IS 3 PB Yaroslavl State Technical University