The production of η′ mesons in the reactions pp→ppη′ and pn→pnη′ at threshold-near energies is analyzed within a covariant effective
meson-nucleon theory. The description of cross section and angular
distributions of the available data in this kinematical region in the pp
channel is accomplished by including meson currents and nucleon currents with
the resonances S11(1650), P11(1710) and P13(1720). Predictions
for the pn channel are given. The di-electron production from subsequent
η′ Dalitz decay η′→γγ∗→γe+e− is also
calculated and numerical results are presented for intermediate energy and
kinematics of possible experiments with HADES, CLAS and KEK-PS