copper(I) trifluoromethylselenolate reagents by the reaction of CuI with the Ruppert’s reagent (Me3SiCF3), KF, and elemental selenium in the presence of dinitrogen ligands in CH3CN at room temperature. The reagent [Cu(bpy)(SeCF3)]2 was proven to be air‐stable and highly efficient for nucleophilic trifluoromethylthselenolation of a broad range of (hetero)aryl halides and alkyl halides. This method represents
Power-variable trifluoromethylating agents, (trifluoromethyl)dibenzothio- and -selenophenium salt system
作者:Umemoto Teruo、Ishihara Sumi
DOI:10.1016/s0040-4039(00)94447-2
日期:1990.1
UMEMOTO, TERUO;ISHIHARA, SUMI, TETRAHEDRON LETT., 31,(1990) N5, C. 3579-3582
作者:UMEMOTO, TERUO、ISHIHARA, SUMI
DOI:——
日期:——
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
Highly Efficient CSeCF<sub>3</sub>Coupling of Aryl Iodides Enabled by an Air-Stable Dinuclear Pd<sup>I</sup>Catalyst
of catalysis at dinuclear PdI sites, we herein report the application of this concept to the realization of the first catalytic method to convert aryliodides into the corresponding ArSeCF3 compounds. HighlyefficientCSeCF3 coupling of a range of aryliodides was achieved, enabled by an air‐, moisture‐, and thermally stable dinuclear PdI catalyst. The novel SeCF3‐bridged dinuclear PdI complex 3 was