The reduction of diaryldiselenides by Cp_2TiCl_2/Bu~iMgBr/THF led to arylselenium complex of titanocene [Cp_2TiSeAr]. This species reacted smoothly with electrophilic substrates such as acylhalides, α-bromocarbonyl compounds, diaryliodonium salts, α,β-unsaturated carbonyl compounds to afford the corresponding organic selenides in high yields.