Results 141 to 150 of about 319,348 (202)
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Catalytic C−H/C−F Coupling of Azoles and Acyl Fluorides
Chemistry – A European Journal, 2019AbstractA method for the palladium/copper‐catalyzed direct acylation of azoles with acyl fluorides is described. This study reports the first examples of acyl fluorides being used as acylation reagents in transition‐metal‐catalyzed aromatic C−H bond functionalization reactions.
Yohei Ogiwara, Yurika Iino, Norio Sakai
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Tetrahedron, 2016
Abstract Reactive acyl trifluoromethanesulfonates are formed from the reaction of acyl fluorides with trimethylsilyl trifluoromethanesulfonate (TMSOTf). These electrophiles undergo Friedel–Crafts reactions with electron-rich aromatics at room temperature. When a sulfur atom is present at their γ position, their cyclization to acylsulfonium cations is
Raghavendra Rao, K.V., Vallée, Yannick
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Abstract Reactive acyl trifluoromethanesulfonates are formed from the reaction of acyl fluorides with trimethylsilyl trifluoromethanesulfonate (TMSOTf). These electrophiles undergo Friedel–Crafts reactions with electron-rich aromatics at room temperature. When a sulfur atom is present at their γ position, their cyclization to acylsulfonium cations is
Raghavendra Rao, K.V., Vallée, Yannick
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Halide-Accelerated Acyl Fluoride Formation Using Sulfuryl Fluoride
Organic Letters, 2020Herein, we report a new one-pot sequential method for SO2F2-mediated nucleophilic acyl substitution reactions starting from carboxylic acids. A mechanistic study revealed that SO2F2-mediated acid activation proceeds via the anhydride, which is then converted to the corresponding acyl fluoride.
Paul J. Foth +5 more
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Organic Letters, 2023
Acyl fluorides are versatile reagents in organic synthesis. However, there is no precedent to employ acyl fluorides as acyl radical precursors. We herein report an N-heterocyclic nitrenium iodide salt-catalyzed photoreduction of acyl fluorides to produce
Lei Bao, Zhixiang Wang, Xiang-Yu Chen
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Acyl fluorides are versatile reagents in organic synthesis. However, there is no precedent to employ acyl fluorides as acyl radical precursors. We herein report an N-heterocyclic nitrenium iodide salt-catalyzed photoreduction of acyl fluorides to produce
Lei Bao, Zhixiang Wang, Xiang-Yu Chen
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1,2-Diacylation of Alkynes Using Acyl Fluorides and Acylsilanes by P(III)/P(V) Catalysis.
Organic Letters, 2023We report herein the phosphine-catalyzed 1,2-diacylation of alkynes using acyl fluorides and acylsilanes as acyl sources. The key to the success of the reaction is a formal oxidative addition-ligand metathesis-reductive elimination cycle based on ...
Hayato Fujimoto +3 more
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Organic Letters, 2023
The elemental sulfur-mediated synthesis of acyl fluorides from carboxylic acids is achieved using Selectfluor. A broad range of acyl fluorides are accessible from carboxylic acids while avoiding the formation of acid anhydrides.
Elsayed Mahmoud +3 more
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The elemental sulfur-mediated synthesis of acyl fluorides from carboxylic acids is achieved using Selectfluor. A broad range of acyl fluorides are accessible from carboxylic acids while avoiding the formation of acid anhydrides.
Elsayed Mahmoud +3 more
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Enantioselective acyl-transfer catalysis by fluoride ions
Chemical Communications, 2018The asymmetric nucleophilic catalysis by fluoride ions at a carbon-based electrophile has been demonstrated for the first time.
Ryan Craig +3 more
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Preparation of Acyl Fluorides with Hydrogen Fluoride‐Pyridine and 1,3‐Dicyclohexylcarbodiimide.
ChemInform, 2002AbstractFor Abstract see ChemInform Abstract in Full Text.
Chinpiao Chen +2 more
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Decarboxylative Cross-Coupling of Acyl Fluorides with Potassium Perfluorobenzoates
Organic Letters, 2020We report the transition metal-free decarboxylative cross-coupling reactions of acyl fluorides with potassium perfluorobenzoates. Compared with traditional transition metal-catalyzed cross-couplings, this protocol presents an extremely environmentally benign pathway to afford unsymmetrical diaryl ketones.
Liyan Fu, Qiang Chen, Yasushi Nishihara
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