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.
用于分子内环加成的烯酮的新制备涉及从合适的羧酸到烯酮环加成产物的一锅合成。 与传统的卤化物离子相比,甲苯磺酸盐离去基团具有多种优点。