Regiospecific synthesis of aryl(2-furyl)iodonium tosylates, a new class of iodonium salts, from [hydroxy(tosyloxy)iodo]arenes and 2-(trimethylsilyl)furans in organic solvents
Synthesis of Oxazolidinones by a Hypervalent Iodine Mediated Cyclization of
<i>N</i>
‐Allylcarbamates
作者:Mirdyul Das、Arantxa Rodríguez、Pui Kin Tony Lo、Wesley J. Moran
DOI:10.1002/adsc.202001451
日期:2021.3.16
The preparation of oxazolidinones by the hypervalentiodinemediatedcyclization of allylcarbamates is described. A versatile range of substrates can be converted into substituted oxazolidinones primed for further transformations. Derivatization of the products at both ends is demonstrated. A preliminary attempt at the enantioselective formation of an oxazolidinone using a chiral iodane is also presented
in the literature, but their structural scope and utilization are limited because of their hygroscopic characteristics. In this study, we describe our detailed investigations for synthesizing a series of uracil iodonium(III) salts derived with various structural motifs and counterions. These new compounds have been utilized as attractive synthetic modules in constructing functionalized nucleobase and
An efficient catalyst- and base-free Suzuki-type coupling reaction
作者:Jie Yan、Zhongshi Zhou、Min Zhu
DOI:10.1016/j.tetlet.2005.09.141
日期:2005.11
Biaryls were prepared in good yields via a fast and efficient catalyst- and base-freeSuzuki-typecouplingreaction of sodium tetraphenylborate with iodanes in water at room temperature.
[Hydroxy(organosulfonyloxy)iodo]arenes are synthesized in neutral organic solvents by the reaction of ring-substituted [hydroxy(organosulfonyloxy)iodo]benzenes with iodoarenes via ligand transfer. The produced compounds are reacted with (triorganosilyl) arenes or (trihalosilyl)arenes in neutral organic solvents to produce diaryliodonium salts. The diaryliodonium salt synthesis proceeds in regiospecific fashion, aryliodination occurring at the point of attachment of the silicon atom in the silylarenes.
Facile One-Pot Preparation of [Hydroxy(sulfonyloxy)iodo]arenes from Iodoarenes with MCPBA in the Presence of Sulfonic Acids
作者:Hideo Togo、Yukiharu Yamamoto
DOI:10.1055/s-2005-872697
日期:——
Various [hydroxy(sulfonyloxy)iodo]arenes were simply and efficiently obtained in high yields from the reaction of iodoarenes and MCPBA in the presence of sulfonic acids in a small amount of chloroform at room temperature, through a one-pot procedure.