Simplified synthesis of aryliodonium ylides by a one-pot procedure
作者:Jens Cardinale、Johannes Ermert
DOI:10.1016/j.tetlet.2013.02.018
日期:2013.4
A simplified synthesis of iodonium ylides was developed by the one-pot synthesis of phenyliodonium-(5-[2,2-dimethyl-1,3-dioxane-4,6-dione]) ylide as a model system. Such ylides are excellent precursors for nucleophilic no-carrier-added 18F-fluorination of even non-activated arenes. The suitability of the one-pot method is exemplified for several electron rich iodonium ylides. Further, the syntheses
An Organometallic Gold(III) Reagent for <sup>18</sup>F Labeling of Unprotected Peptides and Sugars in Aqueous Media
作者:James W. McDaniel、Julia M. Stauber、Evan A. Doud、Alexander M. Spokoyny、Jennifer M. Murphy
DOI:10.1021/acs.orglett.2c01965
日期:2022.7.22
The 18F labeling of unprotected peptides and sugars with a Au(III)–[18F]fluoroaryl complex is reported. The chemoselective method generates 18F-labeled S-aryl bioconjugates in an aqueous environment in 15 min with high radiochemical yields and displays excellent functional group tolerance. This approach utilizes an air and moisture stable, robust organometallic Au(III) complex and highlights the versatility
Decarboxylative arylation with diaryliodonium(<scp>iii</scp>) salts: alternative approach for catalyst-free difluoroenolate coupling to aryldifluoromethyl ketones
α-Aryl-α,α-difluoroketones were synthesized via decarboxylative arylation using diaryliodonium salts under catalyst-free conditions without organometallic intermediates. The products can be transformed into various difluorinated functional groups.
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
作者:Carol S. Carman、Gerald F. Koser
DOI:10.1021/jo00163a022
日期:1983.7
Direct condensation of [hydroxy(tosyloxy)iodo]arenes with thiophenes. A convenient, mild synthesis of aryl(2-thienyl)iodonium tosylates