New Efficient Palladium-Catalyzed Perfluoroalkylation of Carbon-Carbon Multiple Bonds withF-Alkyl Iodides. An Expedient Route toF-Alkylated Alkyl and Alkenyl Iodides
Titanium-catalyzed addition of perfluoroalkyl iodides to alkenes
作者:Charles R. Davis、Donald J. Burton、Zhen-Yu Yang
DOI:10.1016/0022-1139(94)03102-6
日期:1995.1
Perfluoroalkyl iodides, in the presence of a catalytic amount of Ti0 generated in situ, add to alkenes in dimethoxyethane solvent to afford 1-(n-perfluoroalkyl)-2-iodoalkanes in moderate to good yields. 1-Alkenes, 1-alkynes and alkenes containing bromo or ester substituents gave yields of the 1:1 addition adducts with n-perfluoroalkyl iodides. 1-Alkenes containing ketone or alcohol groups gave low
Visible-Light-Mediated Iodoperfluoroalkylation of Alkenes in Flow and Its Application to the Synthesis of a Key Fulvestrant Intermediate
作者:Cristian Rosso、Jason D. Williams、Giacomo Filippini、Maurizio Prato、C. Oliver Kappe
DOI:10.1021/acs.orglett.9b01992
日期:2019.7.5
efficient continuousflow iodoperfluoroalkylation methods are described: using 0.05 mol % perylene diimide (PDI) photocatalyst under 450 nm irradiation or substoichiometric triethylamine under 405 nm irradiation. These methods enable dramatically elevated productivity versus batch processes. The triethylamine-mediated method is explored mechanistically and in substrate scope. The gram-scale synthesis of an