Palladium-Catalyzed Decarbonylative Sonogashira Alkynylation of Carboxylic–Phosphoric Anhydrides
作者:Lan Chen、Haiyao Ji、Yimin Ding、Michal Szostak、Chengwei Liu
DOI:10.1021/acs.joc.3c02701
日期:2024.2.16
selective C(O)–O bond cleavage. Carboxylic–phosphoric anhydrides are highly active carboxylic acid derivatives, which are generated through activating carboxylic acids using phosphates by esterification or direct dehydrogenative coupling with phosphites. Highly valuable internal alkynes have been generated by the present method, and the efficiency of this approach has been demonstrated through a wide
我们报道了第一个钯催化的通过高度选择性 C(O)-O 键断裂的羧酸-磷酸酐的脱羰基炔基化反应。羧酸-磷酸酐是高活性的羧酸衍生物,由磷酸酯通过酯化或与亚磷酸酯直接脱氢偶联来活化羧酸而生成。本方法已经产生了高价值的内炔,并且通过广泛的底物范围和优异的官能团耐受性证明了该方法的效率。