The 5-endo-trigCyclization of gem-Difluoroolefins with sp3Carbon Nucleophiles: Synthesis of 1-Fluorocyclopentenes

Autor: Ichikawa, Junji, Sakoda, Kotaro, Wada, Yukinori
Zdroj: Chemistry Letters; March 2002, Vol. 31 Issue: 3 p282-283, 2p
Abstrakt: A disfavored 5-endo-trigcyclization is accomplished in gem-difluoroolefins with sp3carbon nucleophiles, generated viathe lithium–iodine exchange reaction of 1,1-difluoro-5-iodo-1-pentenes with tert-butyllithium, to afford 1-fluorocyclopentenes.
Databáze: Supplemental Index