Synthesis and Characterization of Fluorinated Hypervalent Tellurium Derivatives
作者:Ewa Pietrasiak、Antonio Togni
DOI:10.1021/acs.organomet.7b00535
日期:2017.10.9
The synthesis of tellurium derivatives bearing fluorinated groups, similar in structure to their hypervalent iodine congeners, is reported. Thus, a series of CF3, CF2H, and C6F5 aryltellurium(II) species bearing various functional groups interacting with the Te atom was obtained. The installation of the various fluorinated groups relies on the use of the corresponding trimethylsilyl precursors. The
报道了带有氟化基团的碲衍生物的合成,其结构与其高价碘同类物相似。因此,获得了一系列带有与Te原子相互作用的带有各种官能团的CF 3,CF 2 H和C 6 F 5芳基碲(II)。各种氟化基团的安装依赖于相应的三甲基甲硅烷基前体的使用。基于其NMR光谱和X射线晶体学表征,讨论了产物的高价性质。
Power-variable electrophilic trifluoromethylating agents. S-, Se-, and Te-(trifluoromethyl)dibenzothio-, -seleno-, and -tellurophenium salt system
作者:Teruo Umemoto、Sumi Ishihara
DOI:10.1021/ja00059a009
日期:1993.3
Te-trifluoromethylated dibenzoheterocyclic onium salts, their derivatives, and related salts were synthesized by the direct fluorination of a mixture of 2-[(trifluoromethyl)thio- or seleno]biphenyls and triflic acid (TfOH) or HBF 4 etherate, by treatment of the corresponding sulfoxides and selenoxides with Tf 2 O by a new type of tellurium activation of 2-[(trifluoromethyl)telluro]biphenyls with Tf 2 O and (CH
S-、Se-和 Te-三氟甲基化二苯并杂环鎓盐、它们的衍生物和相关盐是通过 2-[(三氟甲基)硫代或硒代]联苯和三氟甲磺酸 (TfOH) 或 HBF 的混合物的直接氟化合成的4 醚化物,通过使用 Tf 2 O 和 (CH 3 ) 2 SO 对 2-[(三氟甲基) 碲] 联苯进行新型碲活化,或通过鎓的衍生,用 Tf 2 O 处理相应的亚砜和硒氧化物得到的盐。反应性检查表明,与非杂环盐相比,三氟甲基杂环盐具有很强的反应性,并表明该杂环盐体系可作为广泛适用的三氟甲基化剂的来源
Schulz,P.; Klar,G., Zeitschrift fur Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, 1975, vol. 30, p. 43 - 45