A New Preparation of Ketenes for Intramolecular Cycloadditions
作者:William T. Brady、Alan P. Marchand、Y. Frank Giang、An-Hsiang Wu
DOI:10.1055/s-1987-27959
日期:——
A new preparation of ketenes for intramolecular cycloadditions involves a one-pot synthesis from the appropriate carboxylic acid to the ketene cycloaddition product. A tosylate leaving group rather than the conventional halide ion provides several advantages.