Fluorinated organophosphorus(V) compounds are a very versatile class of compounds, but the synthetic methods available to make them bear the disadvantages of 1) occasional handling of toxic or pyrophoric PIII starting materials and 2) a dependence on hazardous fluorinating reagents such as XeF2. Herein, we present a simple solution and introduce a deoxygenative fluorination (DOF) approach that utilizes
The Pd-catalyzedcross-couplingreactions of Sb-aryl-1,5-azastibocines with alkenes are described. The reactions of azastibocines with alkenes such as vinyl ketones, alkenes, and acrylates in the presence of 10 mol% PdCl2 at 80 °C in DMA under aerobic conditions produced Heck adducts in moderate-to-excellent yields. Single-crystal X-ray and NMR analysis revealed that the aryl donors in this reaction
Pd-catalyzed C-arylation of unsaturated compounds with pentavalent triarylantimony dicarboxylates
作者:Dmitry V Moiseev、Aleksey V Gushchin、Andrey S Shavirin、Yury A Kursky、Viktor A Dodonov
DOI:10.1016/s0022-328x(02)02179-4
日期:2003.2
Triarylantimony(V) derivatives Ar3SbX2 (X=Hal or acyloxy) were prepared by reaction of Ar3Sb with equimolar amounts of a peroxide ROOH (R=t-Bu, H) in the presence of an acid or an anhydride in good to excellent yields. Ar3Sb(O2CR)2 are mild and efficient C-arylation reagents of unsaturatedcompounds (methyl acrylate, styrene, 2-phenylpropene and acrylonitrile) under palladium catalysis at 50 °C, with
Synthesis and Properties of Triarylhalostibonium Cations
作者:Mengxi Yang、François P. Gabbaï
DOI:10.1021/acs.inorgchem.7b00293
日期:2017.8.7
difference observed between the two hexachloroantimonate derivatives 5 and 6 is ascribed to the increased steric protection provided by the larger mesityl substituents. To understand how these structural differences affect the properties of these antimony species, we have compared their catalytic activity in two simple reactions, namely, the polymerization of tetrahydrofuran and the Friedel–Crafts dimerization
Electrochemistry of hypervalent compounds—V. Anodic oxidation of trivalent organoantimony and organobismuth compounds
作者:Toshio Fuchigami、Motoko Miyazaki
DOI:10.1016/s0013-4686(97)85470-9
日期:1997.1
various oxygen nucleophiles or halide ions provided the corresponding hypervalent compounds having SbY bonds (Y = RCOO, F, Cl, Br) in good yields. On the contrary, anodic oxidation of triphenylbismuth gave only carbon-bismuth bond cleavage products. Cathodic reduction of anodically synthesized hypervalent organoantimonycompounds was also investigated by cyclic voltammetry.