Siwu O, Rumampuk RJ, Oktavia B, Pongoh EJ, Tengker SM, Paat VI. Formation Reaction of 17α(chlorovinyl-3-methyl-butene)estradiol Through the Addition Reaction of a Terminal Alkyne to Ethinylestradiol With a ZnCl2 Catalyst: The addition reaction of terminal alkynes of 17α-ethinylestradiol with ZnCl2 and HCl catalyst mediated by dichloromethane. EKSAKTA: J. Sci. Data Anal. [Internet]. 2023 May 10 [cited 2024 Nov. 23];4(2):1-7. Available from: https://journal.uii.ac.id/Eksakta/article/view/26579