ethyl pent-4-ynoate

4-Pentynoic Acid Ethyl Ester-d5 is an isotope analog of 4-Pentynoic Acid Ethyl Ester. 4-Pentynoic Acid Ethyl Ester is used as a reactant with copper-catalyzed regioselective silylcupration of terminal alkynes to form α-vinylsilanes.