Straightforward and Highly Efficient Synthesis of Diselenocarbamates

A highly efficient and simple synthesis of diselenocarbamates, based on a one-pot reaction of amines, CSe2, and alkyl halides in the absence of a catalyst under solvent-free conditions, is reported. The first efficient synthesis of diselenocarbamates via Michael addition of electron-deficient alkenes with aliphatic amines and CSe2 in solid media silica gel is also presented.