Application In Synthesis of Copper(I) tetra(acetonitrile) tetrafluoroborate. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Copper(I) tetra(acetonitrile) tetrafluoroborate, is researched, Molecular C8H12BCuF4N4, CAS is 15418-29-8, about Isolable Copper(I) η2-Cyclopropene Complexes. Author is Noonikara-Poyil, Anurag; Ridlen, Shawn G.; Dias, H. V. Rasika.
Treatment of bis(pyrazolyl)borate ligand supported [(CF3)2Bp]Cu(NCMe) with 1,2,3-trisubstituted cyclopropenes produced thermally stable copper(I) η2-cyclopropene complexes amenable to detailed solution and solid-state anal. The [(CF3)2Bp]Cu(NCMe) also catalyzed [2 + 1]-cycloaddition chem. of terminal and internal alkynes with Et diazoacetate affording cyclopropenes, including those used as ligands in this work. The tris(pyrazolyl)borate [(CF3)2Tp]Cu(NCMe) is a competent catalyst for this process as well. The treatment of [(CF3)2Tp]Cu with Et 2,3-diethylcycloprop-2-enecarboxylate substrate gave an O-bonded rather than a η2-cyclopropene copper complex. Bottleable cyclopropene complexes of copper have been obtained for the first time and investigated spectroscopically and using X-ray crystallog. The bonding modes of the ester functionalized cyclopropenes depend on the ligand supports on copper. The copper complexes also serve as competent catalysts in the cyclopropenation of alkynes with carbenes.
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