BENZOFURO[3,2-D]PYRIMIDINO-2,4-DICARBONITRIL DERIVATIVES AND SIMILAR COMPOUNDS FOR ORGANIC ELECTROLUMINESCENCE DEVICES

The present invention relates to dicyano-substituted monoaza- or diazadibenzofurane derivatives and dicyano-substituted monoaza- or diazadibenzothiophene derivatives of the formula (1), wherein the following applies to the symbols and indices used: Ring A-| in formula (1) corresponds to formula (1A), Y represents at each instance independently N, C or CR+, wherein at least one Y represents N and at least two Y represent C, to which the CN group is attached; if two Y represent N, they are separated from each other by at least one C-CN group; and V is O or S. The invention also relates to electronic devices comprising these compounds, more particularly organic electroluminescence devices containing these compounds as triplet matrix materials, optionally combined with another triplet matrix material and suitable phosphorescent emitters, and to suitable mixtures and formulations.