Decatungstate-Mediated Radical Reactions of C<sub>60</sub> with Substituted Toluenes and Anisoles: A New Photochemical Functionalization Strategy for Fullerenes
作者:Manolis D. Tzirakis、Michael Orfanopoulos
DOI:10.1021/ol7030125
日期:2008.3.1
convenient, highly efficient, decatungstate-mediated chemical methodology to functionalize fullerenes is demonstrated. A variety of radicals have been generated by the photochemical interaction of tetrabutylammonium decatungstate [(n-Bu4N)4W10O32] and para-substituted toluenes, anisoles, and thioanisole and effectively trapped by the [60]fullerene affording the corresponding 1,2-dihydro[60]fullerene monoadducts
Mechanistic analysis of oxidative C–H cleavages using inter- and intramolecular kinetic isotope effects
作者:Hyung Hoon Jung、Paul E. Floreancig
DOI:10.1016/j.tet.2009.10.088
日期:2009.12
series of monodeuterated benzylic and allylic ethers were subjected to oxidative carbon–hydrogenbond cleavage to determine the impact of structural variation on intramolecular kinetic isotopeeffects in DDQ-mediated cyclization reactions. These values are compared to the corresponding intermolecular kinetic isotopeeffects that were accessed through subjecting mixtures of non-deuterated and dideuterated
Direct coupling of unactivated olefins with primary alkylamines is considered to be an efficient but unknown method for the construction of complex amines. Herein we report a catalytic intermolecular oxidative amination of unactivated olefins with primary aliphatic amines based on the combination of a palladium catalyst, a bidentatephosphine ligand, and duroquinone. A range of secondary allylic amines
Mechanistic Studies into the Oxidative Addition of Co(I) Complexes: Combining Electroanalytical Techniques with Parameterization
作者:Christopher Sandford、Lydia R. Fries、Tyler E. Ball、Shelley D. Minteer、Matthew S. Sigman
DOI:10.1021/jacs.9b10771
日期:2019.11.27
generated Co(I) complexes has been widely utilized as a strategy to produce carbon-centered radicals when cobalt is ligated by a polydentate ligand. Changing to a bidentate ligand provides the opportunity to access discrete Co(III)-C bonded complexes for alternative reactivity, but knowledge of how ligand and/or substrate structures affect catalytic steps is pivotal to reaction design and catalyst optimization