Synthesis of 2-Trifluoromethyl-1,3-cyclopentanedione and 2-Trifluoromethyl-1,4-benzoquinone via Chlorous Acid Oxidation of 3-Trifluoromethylphenol
作者:Jean-Claude Blazejewski、Régine Dorme、Claude Wakselman
DOI:10.1055/s-1985-31445
日期:——
A new synthesis of 2-trifluoromethyl-1,4-benzoquinone and 2-chloro-2-trifluoromethyl-1,3-cyclopentanedione by oxidation of 3-trifluoromethyl-phenol with sodium chlorite/sulfuric acid (chlorous acid) is described. In addition, the hydrodechlorination of 2-chloro-2-trifluoromethyl-1,3-cyclopentanedione to give 2-trifluoromethyl-1,3-cyclopentanedione by hydroiodic acid (generated in catalytic amounts from iodine and thiophenol) has been achieved.
本研究描述了一种通过亚氯酸钠/硫酸(亚氯酸)氧化 3-三氟甲基苯酚,合成 2-三氟甲基-1,4-苯醌和 2-氯-2-三氟甲基-1,3-环戊二酮的新方法。此外,还实现了 2-氯-2-三氟甲基-1,3-环戊二酮在氢碘酸(由碘和噻吩酚催化生成)作用下的氢脱氯生成 2-三氟甲基-1,3-环戊二酮。