Available online-1-n-butyl-3-methylimidazolium selenocyanate ([bmim][SeCN]) proved to be a very efficient reagent for selenocyanation of alkyl halides. As part an eco-friendly process, no organic solvents were used during the transformation and reaction times are reduced by using microwave as heating source. The ionic liquid was carefully recycled in two different ways. Selenocyanate compounds ...