Oxidation of 2-Substituted Cycloalkanones with Cerium(IV) Sulfate Tetrahydrate in Alcohols and Acetic Acid
作者:Liangyou He、C. Akira Horiuchi
DOI:10.1246/bcsj.72.2515
日期:1999.11
The reaction of 2-substituted cycloalkanones with cerium(IV) sulfate tetrahydrate (CS) in alcohols and acetic acid gave the corresponding alkyl esters of oxo acids (80—96%) and oxo acids (78—96%), respectively, by oxidative cleavage of the C(R)–C=O bond. In the case of 2-iodocycloalkanones in methanol, the dimethyl ester was obtained in good yield. A treatment of 5α-cholestan-3-one with CS in methanol
2-取代环烷酮与四水合硫酸铈 (CS) 在醇和乙酸中反应,分别通过氧化反应生成相应的含氧酸 (80-96%) 和含氧酸 (78-96%) 烷基酯C(R)–C=O 键的断裂。在甲醇中的 2-碘环烷酮的情况下,以良好的收率获得二甲酯。在甲醇中用 CS 处理 5α-cholestan-3-one 以良好的收率产生 2,3-seco 衍生物的 2-缩醛 3-酯。还讨论了铈 (IV) 和铜 (II) 盐的影响。