【文章名】One step introduction of 4,4-bis(trifluoroacetyl)-1,3-butadiene system to aromatic rings using fluorine-containing 3,4-dihydro-2H-pyrans. A facile synthetic method for 1,1,1,5,5,5-hexafluoro-3-[(E)-3-arylallylidene]pentane-2,4-diones.
One step introduction of 4,4-bis(trifluoroacetyl)-1,3-butadiene system to aromatic rings using fluorine-containing 3,4-dihydro-2H-pyrans. A facile synthetic method for 1,1,1,5,5,5-hexafluoro-3-[(E)-3-arylallylidene]pentane-2,4-diones.
[摘要]：New 1,1,1,5,5,5-hexafluoro-3-[(E)-3-arylallylidene]pentane-2,4-diones were synthesized in moderate to high yields by ring-opening of 1-(2-ethoxy-4-isobutoxy-6-trifluoromethyl-3,4-dihydro-2H-pyran-5-yl)-2,2 ,2-trifluoroethanone with arenes in refluxing F3CCO2H.
