New Bicyclic Conjugates of Three- and Five-Membered Heterocycles with 5-Alkoxyfuran-2(5H)-ones (4-Alkoxy-Δ2-butenolides)
作者:H. M. R. Hoffmann、K. Gerlach、E. Lattmann
DOI:10.1055/s-1996-4157
日期:1996.1
The title molecules were built up by 1,3-dipolar cycloaddition and by palladium-catalyzed cross coupling of 4-bromofuran-2(5H)-ones with heterocyclic stannanes.
From Tetronic Acid and Furfural to C(4)-Halogenated, Vinylated and Formylated Furan-2(5H)-ones and Their 5-Alkoxy Derivatives
作者:E. Lattmann、H. M. R. Hoffmann
DOI:10.1055/s-1996-4156
日期:1996.1
Tetronic acid and furfural have been elaborated into the title compounds. Palladium-catalyzed cross coupling with vinylstannanes and controlled ozonolysis followed by anhydrous workup are key reactions.