Preparation of unsymmetrical selenides via the reaction of arylselenol with alkyl halides needs at least equal molar cesium hydroxide as the base.

Reaction of the insertion adducts with epoxides and α,β unsaturated esters (nitriles) in THF HMPA afforded the corresponding unsymmetrical selenides, respectively.

Reaction kinetics of synthesis of styrene-isoprene-butadiene rubber using asymmetrical ether as structure modifier;