Copper mediated decyano decarboxylative coupling of cyanoacetate ligands: Pesci versus Lewis acid mechanism
نویسندگان
چکیده
منابع مشابه
Copper mediated decyano decarboxylative coupling of cyanoacetate ligands: Pesci versus Lewis acid mechanism.
A combination of gas-phase ion trap multistage mass spectrometry (MS(n)) experiments and density functional theory (DFT) calculations have been used to examine the mechanisms of the sequential decomposition reactions of copper cyanoacetate anions, [(NCCH2CO2)2Cu](-), introduced into the gas-phase via electrospray ionization. Gas phase IR spectroscopy, used to probe the coordination mode of the ...
متن کاملCopper-Mediated Synthesis of Monofluoro Aryl Acetates via Decarboxylative Cross-Coupling
We report the Cu-promoted oxidative cross-coupling of αfluoromalonate half-esters and aryl boron reagents to deliver monofluoro α-aryl acetates under mild conditions (in air at room temperature). The reaction uses a simple, readily available monofluorinated building block to generate arylated compounds with functional groups that are not easily tolerated by existing methods, such as aryl bromid...
متن کاملCopper-mediated oxidative decarboxylative coupling of arylpropiolic acids with dialkyl H-phosphonates in water.
An efficient, mild, and generally applicable protocol for copper-mediated oxidative decarboxylative coupling of arylpropiolic acids with dialkyl H-phosphonates in water has been developed. Note that the reaction could proceed smoothly under air at relatively low temperature (60 °C), and the addition of isopropanol could successfully suppress the decomposition of dialkyl H-phosphonates in water.
متن کاملCopper-mediated C-H(sp²)/C-H(sp³) coupling of benzoic acid derivatives with ethyl cyanoacetate: an expedient route to an isoquinolinone scaffold.
A facile, copper-mediated, direct C-H(sp(2))/C-H(sp(3)) bond coupling of benzoic acid derivatives with ethyl cyanoacetate by the deployment of an 8-aminoquinoline moiety as a bidentate directing group is disclosed. Such a unique transformation provides a new strategy for the construction of an isoquinolinone scaffold as one of the privileged cores.
متن کاملRemoval of Chelated Copper by TiO2 Photocatalysis: Synergetic Mechanism Between Cu (II) and Organic Ligands
UV/TiO2 photocatalysis of chelated copper in aqueous solutions has been performed starting from Cu(II)-tartaric acid, Cu(II)-citric acid, Cu(II)-EDTA and Cu(II)-DTPA,in the presence of oxygen and at acidic pH. The photocatalytic reaction obeys first-order kinetic equation. The influence of Cu(II) on photocatalytic oxidation of organic ligands and how the various organics will affe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Dalton Transactions
سال: 2015
ISSN: 1477-9226,1477-9234
DOI: 10.1039/c5dt00942a