3-Fluorotetrahydropyran-4-one derivatives from homopropargyl acetal
作者:Jon Erik Aaseng、Naseem Iqbal、Christian A. Sperger、Anne Fiksdahl
DOI:10.1016/j.jfluchem.2014.01.019
日期:2014.5
A gold(I)-catalysed regioselective method for the preparation of 3-fluoro-tetrahydropyran-4-one derivatives from homopropargyl acetal is reported. A one-pot procedure based on a gold(I)-catalysed Petasis–Ferrier rearrangement/cyclization and subsequent fluorination was developed. The 3-fluoro-pyran-4-one compound acts as a protected precursor of alkylfluoro-α,β-(E)-unsaturated ketone, which was readily