The 1,3-cycloaddition reaction of nitrile oxides (1) to beta-perfluoroalkyl-beta-dicarbonyl compounds (2) affords regio- and site-selectively either 5-perfluoroalkyl-isoxazoles (4) or 4-trifluoroacetylisoxazoles (6) according to the nature of dipolarophiles (2).
A site-specific and regio-specific route to perfluoroalkylisoxazoles
BRAVO, PIERFRANCESCO;RESNATI, GIUSEPPE
1991-01-01
Abstract
The 1,3-cycloaddition reaction of nitrile oxides (1) to beta-perfluoroalkyl-beta-dicarbonyl compounds (2) affords regio- and site-selectively either 5-perfluoroalkyl-isoxazoles (4) or 4-trifluoroacetylisoxazoles (6) according to the nature of dipolarophiles (2).File in questo prodotto:
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