Cascade radical reaction of substrates with a carbon–carbon triple bond as a radical acceptor
作者:Hideto Miyabe、Ryuta Asada、Yoshiji Takemoto
DOI:10.3762/bjoc.9.128
日期:——
intermolecular reaction involving a radical addition and sequential allylation processes. Next, the effect of hydroxamate ester was studied in the cascadeaddition-cyclization-trappingreaction of substrates with a carbon-carbon triple bond as a radical acceptor. When substrates with a methacryloyl moiety and a carbon-carbon triple bond as two polarity-different radical acceptors were employed, the cascade reaction
Polarity-Mismatched Addition of Electrophilic Carbon Radicals to an Electron-Deficient Acceptor: Cascade Radical Addition–Cyclization–Trapping Reaction
in the case of substrates 2–7, perfluoroalkyl radicals selectively added to an electron-deficient alkene moiety of 2–7, to give polarity-mismatched perfluoroalkylation products without the formation of regioisomers. Next, the control of enantioselectivity was studied. In the case of substrates 1 and 3, the reaction proceeded with good enantioselectivities by employing a chiral Lewis acid, prepared from