First direct evidence of N-heterocyclic carbene in BMIm acetate ionic liquid. An electrochemical and chemical study on the role of temperature [PDF]
, 2017 Cyclic voltammetry provides the first direct evidence of N-heterocyclic carbene (NHC) presence in neat 1-‐butyl-3-methylimidazolium acetate ionic liquid (BMImAcO) at 120°C. The NHC existence, proved by its oxidation current in cyclic voltammetry, was
Chiarotto, I., Feroci, M., Inesi, A.
core +1 more source
1,3-Bis(2,6-diisopropylphenyl)imidazolium perchlorate
IUCrData, 2018 The title salt, C27H37N2+·ClO4−, arose as an unexpected oxidation product of the carbene 1,3-bis(2,6-diisopropylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene in methanol.
Samuel A. Minaker +2 more
doaj +1 more source
Molecules, 2023 A facile and efficient methodology for the generation of the C-X (X = Si, B) bond through a carbene insertion process was demonstrated using a dirhodium metal–organic cage, MOC-Rh-1, as a heterogeneous catalyst.
Lianfen Chen +4 more
doaj +1 more source
Design of singlet fission chromophores with cyclic (alkyl)(amino) carbene building blocks [PDF]
, 2019 We use MRSF-TDDFT and NEVPT2 methods to design singlet fission chromophores with the building blocks of cyclic (alkyl)(amino)carbenes (CAACs). CAAC dimers with C2, C4, and p-phenylene spacers are considered.
Choi, Cheol Ho +3 more
core +1 more source
Carbene-carbene rearrangements: Multiplicity of the rearranged carbene
Tetrahedron Letters, 1975 Tetrahedron Letters 16 (1975) 3807-3810. doi:10.1016/S0040-4039(00)91279-6 ; Received by publisher: 1975-06-02 ; Harvest Date: 2016-01-04 12:20:50 ; DOI:10.1016/S0040-4039(00)91279-6 ; Page Range: 3807 ...
Department of Chemistry, University of Florida, Gainesville 32611 U.S.A. ( host institution ) +2 more
openaire +2 more sources
Transmetalation from Magnesium–NHCs—Convenient Synthesis of Chelating π-Acidic NHC Complexes
Inorganics, 2019 The synthesis of chelating N-heterocyclic carbene (NHC) complexes with considerable π-acceptor properties can be a challenging task. This is due to the dimerization of free carbene ligands, the moisture sensitivity of reaction intermediates or ...
Julian Messelberger +5 more
doaj +1 more source
A catalytic cycle for oxidation of tert-butyl methyl ether by a double C−H activation-group transfer process [PDF]
, 2008 A square-planar, iridium(I) carbene complex is shown to effect atom and group transfer from nitrous oxide and organic azides, releasing the corresponding formate or formimidate and an iridium(I)−dinitrogen adduct.
Grubbs, Robert H., Whited, Matthew T.
core +2 more sources
1,3-Bis(2,4,6-trimethylphenyl)imidazolium perchlorate
IUCrData, 2019 The title compound, C21H25N2+·ClO4−, arose as an unexpected oxidation product of the carbene 1,3-bis(2,4,6-trimethylphenyl)-1,3-dihydro-2H-imidazol-2-ylidine in methanol.
Ruiyao Wang, Manuel A.S. Aquino
doaj +1 more source
Synthesis and trapping of spiro [bicyclo[4.2.0]octa-2,3-diene-7,2'-[1,3]dioxolane]
Journal of New Results in Science, 2023 Spiro[bicyclo[3.2.0]hept-2-ene-6,2'-[1,3]dioxolane] was synthesized by the reaction of bicyclo[3.2.0]hept-2-en-6-one with ethylene glycol in yield of 92%.
Esra Koç, Mustafa Ceylan
doaj +1 more source
Synthesis of cyclopropyl-substituted furans by Brønsted acid promoted cascade reactions [PDF]
, 2015 Chloroacetic acid promotes an efficient and diastereoselective intramolecular cascade reaction of electron-deficient ynenones to deliver products featuring a 2,3,5-trisubstituted furan bearing a fused cyclopropyl substituent at the 5-position ...
Achmatowicz +46 more
core +2 more sources