Synthesis of Chiral 1,1,1-Trifluoro-<i>α,α</i>-disubstituted 2,4-Diketones via Palladium-Catalyzed Asymmetric Allylation
作者:Guihua Chen、Jiajun Mo、Ding Jiang、Yungui Peng
DOI:10.1021/acs.orglett.3c00364
日期:——
Trifluoromethyl ketones are important enzyme inhibitors and versatile synthons for the preparation of trifluoromethylated heterocycles and complex molecules. An efficient methodology for the synthesis of chiral 1,1,1-trifluoro-α,α-disubstituted 2,4-diketones via palladium-catalyzed allylation with allyl methyl carbonates under mild conditions has been developed. This method surmounts the major obstacle
三氟甲基酮是重要的酶抑制剂和多功能合成子,可用于制备三氟甲基化杂环和复杂分子。开发了一种在温和条件下通过钯催化的碳酸烯丙基化反应合成手性 1,1,1-三氟-α,α-二取代 2,4-二酮的有效方法。该方法克服了脱三氟乙酰化的主要障碍,可以从简单的底物快速构建手性三氟甲基酮库,收率和对映选择性好,为制药和材料行业的科学家提供了新的选择。