1632145-20-0

Access to diverse set of (hetero)aromatics via Weaver Meldrum’s Acid reagents, thermally and hydrolytically stable.

This compound undergoes cycloreversion to form the fluoro(hetero)aryl ketene, which undergoes efficient coupling with nucleophiles and allows rapid incorporation of highly fluorinated α-fluoro(hetero)aryl acetic acid derivatives.

N-Ethyl-N-isopropylpropan-2-aminium 4-oxo-3-(2,3,5,6-tetrafluoro-4-(methoxycarbonyl)phenyl)-1,5-dioxaspiro[5.5]undec-2-en-2-olate is a fluoroarylated-Meldrum′s acid adduct. It can be prepared by reacting methyl-2,3,4,5,6-pentafluorobenzoate with cyclohexyl Meldrum′s acid.