Catalytic Desymmetrizing Baeyer–Villiger Oxidation of Quaternary Carbon-Containing Cyclobutane-1,3-diones
作者:Chao Liu、Feng-Lan Zou、Kai-Ge Wen、Yi-Yuan Peng、Qiu-Ping Ding、Xing-Ping Zeng
DOI:10.1021/acs.orglett.3c01852
日期:2023.8.11
carbon-containing cyclobutane-1,3-diones using chiral phosphoric acid catalysis and commercially available oxidants was reported. According to the structure of the substrates, two optimized reaction conditions were developed to afford the corresponding chiral tetronic acid products in ≤93% and ≤95% ee values. This reaction offers the first catalytic asymmetric approach to chiral 5,5-disubstituted tetronic acid derivatives
首次报道了使用手性磷酸催化和市售氧化剂对含季碳环丁烷-1,3-二酮进行高度对映选择性拜耳-维利格氧化。根据底物的结构,开发了两种优化的反应条件,得到了相应的手性季酮酸产物,其ee值≤93%和≤95%。该反应为手性 5,5-二取代特窗酸衍生物提供了第一个催化不对称方法。(−)-vertinolide 的正式不对称合成和 plakinidone B 的首次催化不对称全合成证明了该方法的合成潜力。