Used as a versatile reagent in organic synthesis, particularly in the formation of cyclopentene derivatives through nucleophilic substitution or cross-coupling reactions. Its structure allows for ring-opening or functionalization at the double bond, making it valuable in the preparation of fluorinated building blocks for pharmaceuticals and agrochemicals. The trifluoromethylsulfonyl (triflyl) group acts as a good leaving group, facilitating carbon-carbon and carbon-heteroatom bond formation under transition metal catalysis. It is also employed in the synthesis of strained ring systems and conjugated dienes for materials science applications.