The Reaction of Carboxylic Acid Esters with RfMgBr: A Convenient Synthesis of Perfluoroalkyl Ketones
作者:Can Xue、Guangke He、Chunling Fu、Liqin Xue、Zhenyang Lin、Shengming Ma
DOI:10.1002/ejoc.201000887
日期:2010.12
synthetically attractive perfluoroalkyl ketones through the reaction of readily available alkenoates, alkynoates, or regular carboxylic esters with perfluoroalkyl Grignardreagents at -70 to -60 °C in diethyl ether with moderate to good yields was developed. The reaction stopped at the ketone stage, with no further reaction to form the tertiary alcohols being observed. DFT calculations confirmed that
开发了一种通过容易获得的烯酸酯、炔酸酯或常规羧酸酯与全氟烷基格氏试剂在 -70 至 -60 °C 下在二乙醚中反应以中等至良好产率制备具有合成吸引力的全氟烷基酮的有效方法。反应在酮阶段停止,没有观察到进一步反应形成叔醇。DFT 计算证实,与普通酮相比,全氟烷基取代的酮的亲电性较低。
A new entry for the oxidation of fluoroalkyl-substituted methanol derivatives: Scope and limitation of the organoiodine(V) reagent-catalyzed oxidation
作者:Yusuke Tanaka、Takashi Ishihara、Tsutomu Konno
DOI:10.1016/j.jfluchem.2012.03.002
日期:2012.5
Oxidation of various fluoroalkyl-substituted methanol derivatives under the influence of a catalytic amount of sodium 2-iodobenzenesulfonate and Oxone® in CH3CN or CH3NO2 was investigated in detail. The efficiency of the newly developed oxidation was also evaluated by comparison to other oxidations, such as Dess–Martin, PDC, and Swern oxidation.
钠2-碘和过硫酸氢钾的催化量的影响下的各种氟烷基取代甲醇衍生物的氧化®在CH 3 CN或CH 3 NO 2详细进行了研究。通过与其他氧化方法(如Dess-Martin,PDC和Swern氧化方法)进行比较,还评估了新开发的氧化方法的效率。
Preparation of Perfluoroalkyl Ketones by the Reaction of Perfluoroalkyllithiums with Esters
作者:Hidemitsu Uno、Yasukazu Shiraishi、Hitomi Suzuki
DOI:10.1246/bcsj.62.2636
日期:1989.8
A variety of esters react with perfluoroalkyllithiums in situ generated from perfluoroalkyl iodides and methyllithium to give perfluoroalkyl ketones in good yields. Perfluoroalkyllithiums add to α, β-unsaturated esters only in the 1,2-addition mode even in the presence of copper salt. Exception was observed in the reaction with maleates where perfluoroalkylated succinic esters and normal 1,2-addition
Perfluoroalkylation of esters with perf luoroalkyllithiums occurs smoothly in ether at −78 °C, giving the corresponding perfluoroalkylketones in good yields.
酯与全氟烷基锂的全氟烷基化在 -78 °C 下在醚中顺利发生,以良好的产率得到相应的全氟烷基酮。
DIASTEREOSELECTIVE REDUCTION OF PERFLUQROALKYLATED α,β-UNSATURATED KETONES WITH BAKER’S YEAST
作者:Tomoya Kitazume、Nobuo Ishikawa
DOI:10.1246/cl.1984.587
日期:1984.4.5
The differentiation of a fluorinated group in the molecule with active fermenting yeast and the doubleasymmetricinduction in some perfluoroalkylated α,β-unsaturated ketones are described.