Synthetic Applications of α-Fluoroalkylated Enones. 1. Use as Dienophiles in Diels−Alder Cycloadditions
摘要:
beta-Fluoroalkylated enones are efficient dienophiles in Diels-Alder cycloadditions to prepare various fluorinated cylic compounds. However, the presence of the fluoroalkyl moiety modifies the reactivity and the selectivity of these cycloadditions.
Reactivity of Stable Trifluoroacetaldehyde Hemiaminals. 1. An Unexpected Reaction with Enolizable Carbonyl Compounds
摘要:
In the presence of enolizable carbonyl compounds, hemiaminals of fluoral and related polyfluoro-aldehydes behave as equivalents of fluoroalkyl iminium compounds and provide beta -polyfluoroalkyl beta -dialkylamino ketones, which are easily transformed, under acidic conditions, into beta -polyfluoroalkylenones.
Synthetic Applications of α-Fluoroalkylated Enones. 1. Use as Dienophiles in Diels−Alder Cycloadditions
作者:Julia Leuger、Gaëlle Blond、Roland Fröhlich、Thierry Billard、Günter Haufe、Bernard R. Langlois
DOI:10.1021/jo052567+
日期:2006.3.31
beta-Fluoroalkylated enones are efficient dienophiles in Diels-Alder cycloadditions to prepare various fluorinated cylic compounds. However, the presence of the fluoroalkyl moiety modifies the reactivity and the selectivity of these cycloadditions.
Reactivity of Stable Trifluoroacetaldehyde Hemiaminals. 1. An Unexpected Reaction with Enolizable Carbonyl Compounds
作者:Gaëlle Blond、Thierry Billard、Bernard R. Langlois
DOI:10.1021/jo015587u
日期:2001.7.1
In the presence of enolizable carbonyl compounds, hemiaminals of fluoral and related polyfluoro-aldehydes behave as equivalents of fluoroalkyl iminium compounds and provide beta -polyfluoroalkyl beta -dialkylamino ketones, which are easily transformed, under acidic conditions, into beta -polyfluoroalkylenones.