منابع مشابه
Heterogeneous copper-catalyzed hydroxylation of aryl iodides under air conditions.
In this work, the ligand-free heterogeneous copper Cu-g-C3N4 was synthesized and used for the hydroxylation of aryl iodides to synthesize phenols using cheap bases. The catalyst was conveniently prepared, air-tolerant, reusable and scalable, and is very efficient for a wide range of substrates. The synthesis of substituted phenols can be carried out under air conditions and has great potential ...
متن کاملComparative profiling of well-defined copper reagents and precursors for the trifluoromethylation of aryl iodides
A number of copper reagents were compared for their effectiveness in trifluoromethylating 4-iodobiphenyl, 4-iodotoluene, and 2-iodotoluene. Yields over time were plotted in order to refine our understanding of each reagent performance, identify any bottlenecks, and provide more insight into the rates of the reactions. Interestingly, differences in reactivity were observed when a well-defined [L...
متن کاملEfficient copper-catalyzed trifluoromethylation of aromatic and heteroaromatic iodides: the beneficial anchoring effect of borates.
Efficient copper-catalyzed trifluoromethylation of aromatic iodides was achieved with TMSCF3 in the presence of trimethylborate. The Lewis acid was used to anchor the in situ generated trifluoromethyl anion and suppress its rapid decomposition. Broad applicability of the new trifluoromethylating reaction was demonstrated in the functionalization of different aromatic and heteroaromatic iodides.
متن کاملEfficient copper-catalyzed coupling of aryl chlorides, bromides and iodides with aqueous ammonia.
The copper(I)-catalyzed synthesis of a range of primary anilines from electron-rich and electron-deficient aryl halides including aryl chlorides has been achieved with aqueous ammonia, avoiding the need for inert atmosphere, expensive catalysts and ligands, anhydrous solvents, and additional base or other additives.
متن کاملLigand-, copper-, and amine-free sonogashira reaction of aryl iodides and bromides with terminal alkynes.
Conditions for an efficient ligand-, copper-, and amine-free palladium-catalyzed Sonogashira reaction of aryl iodides and bromides with terminal alkynes have been developed. Critical to the success of this new protocol is the use of tetrabutylammonium acetate as the base. Noteworthy features of this method are room-temperature conditions and the tolerance of a broad range of functional groups i...
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ژورنال
عنوان ژورنال: J. Chem. Soc., Trans.
سال: 1905
ISSN: 0368-1645
DOI: 10.1039/ct9058701584