Abstract
With Et3N·3HF as the fluorinating reagent, a copper(I)- or silver(I)-catalyzed β/α-site-regiocontrolled trans-hydrofluorination of alkynamides has been achieved, affording the corresponding fluoro enamides in moderate to nearly quantitative yields with high regio- and stereoselectivity, respectively. The reaction proceeds under mild reaction conditions and exhibits good functional group tolerance. Further, the deuterium-labeling experiment confirmed the existence of the alkenylcopper intermediate.
Original language | English |
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Pages (from-to) | 1856-1859 |
Number of pages | 4 |
Journal | Organic Letters |
Volume | 18 |
Issue number | 8 |
DOIs | |
State | Published - 15 Apr 2016 |