Rapid Iododeboronation with and without Gold Catalysis: Application to Radiolabelling of Arenes
作者:Stacey Webster、Kerry M. O'Rourke、Conor Fletcher、Sally L. Pimlott、Andrew Sutherland、Ai-Lan Lee
DOI:10.1002/chem.201704534
日期:2018.1.19
Radiopharmaceuticals that incorporate radioactive iodine in combination with single-photon emission computed tomography imaging play a key role in nuclear medicine, with applications in drug development and disease diagnosis. Despite this importance, there are relatively few general methods for the incorporation of radioiodine into small molecules. This work reports a rapid air- and moisture-stable
The Direct lodination of Polyalkylbenzenes by the Crossed Jacobsen Reaction
作者:Hitomi Suzuki、Takashi Sugiyama、Ryozo Goto
DOI:10.1246/bcsj.37.1858
日期:1964.12
A method has been developed for the direct iodination of certain polyalkylbenzenes by the transfer of an iodine atom of iodoanisole. It consists of the simultaneous addition of iodoanisole and sulfuric acid to the polyalkylbenzene to which the transfer is to be made. In this way, iodo compounds have been prepared from eight polyalkylbenzenes.
Pseudocyclic bis-N-heterocycle-stabilized iodanes – synthesis, characterization and applications
作者:Andreas Boelke、Soleicha Sadat、Enno Lork、Boris J. Nachtsheim
DOI:10.1039/d1cc03097c
日期:——
iodine chemistry. A performance test in a variety of benchmark reactions including sulfoxidations and phenoldearomatizations revealed a bis-N-bound pyrazole substituted BNHI as the most reactive derivative. Its solid-state structure was characterized via X-ray analysis implying strong intramolecular interactions between the pyrazole nitrogen atoms and the hypervalent iodine centre.
Reactivity and Synthetic Utility of 1-(Arenesulfonyloxy)benziodoxolones
作者:Takahito Muraki、Hideo Togo、Masataka Yokoyama
DOI:10.1021/jo9825207
日期:1999.4.1
1-(arenesulfonyloxy)benziodoxolones iodinated various aromatics to give iodoarenes in moderate to good yields. In particular, 1-(p-chlorobenzenesulfonyloxy)benziodoxolone showed the best reactivity. Using a halide salt such as lithium bromide or lithium chloride instead of iodine, the corresponding aryl bromides and chlorides were also obtained in good yields. In the absence of aromatics, 1-(arenesulfonyloxy)benziodoxolones
Room-Temperature Gold-Catalysed Arylation of Heteroarenes: Complementarity to Palladium Catalysis
作者:Alexander J. Cresswell、Guy C. Lloyd-Jones
DOI:10.1002/chem.201602893
日期:2016.8.26
Tailoring of the pre‐catalyst, the oxidant and the arylsilane enables the first room‐temperature, gold‐catalysed, innate C−H arylation of heteroarenes. Regioselectivity is consistently high and, in some cases, distinct from that reported with palladium catalysis. Tolerance to halides and boronic esters, in both the heteroarene and silane partners, provides orthogonality to Suzuki–Miyaura coupling.