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Discovery of the aggregation pheromone of the brown marmorated stink bug (Halyomorpha halys) through the creation of stereoisomeric libraries of 1-bisabolen-3-ols.
We describe a novel and straightforward route to all stereoisomers of 1,10-bisaboladien-3-ol and 10,11-epoxy-1-bisabolen-3-ol via the rhodium-catalyzed asymmetric addition of trimethylaluminum to
Redox Chemistry
Three strikes aN2d you’re out! The spontaneous azide decomposition on mononuclear ruthenium complexes bearing a redox-active aminophenol-derived tridentate NNO ligand selectively generates a rare
IPr* an easily accessible highly hindered N-heterocyclic carbene.
Herein, the efficient three-step synthesis of a novel highly hindered, but flexible, N-heterocyclic carbene and its coordination chemistry to Ag(i) and Rh(i).
Ketones as directing groups in photocatalytic sp3 C–H fluorination† †Electronic supplementary information (ESI) available. CCDC 1556373, 1556374 and 1556555. For ESI and crystallographic data in CIF
Visible light-sensitization allows conformationally rigid ketones to act as “directing groups” for aliphatic fluorination using Selectfluor, catalytic benzil, and LEDs.
Dramatically Accelerated Selective Oxygen-Atom Transfer by a Nonheme Iron(IV)-Oxo Complex: Tuning of the First and Second Coordination Spheres
Direct evidence for H-bonding is seen in a structural analogue, [FeII(Cl)(N3PyamideSR)](BF4)2 (3).
Heme/copper assembly mediated nitrite and nitric oxide interconversion.
It is shown that a partially reduced heme/Cu assembly reduces NO(2)(-) ion, producing nitric oxide, which serves as the reductant, but the Cu(II) ion is also required.
Direct, catalytic monofluorination of sp³ C-H bonds: a radical-based mechanism with ionic selectivity.
A detailed reaction mechanism based on exhaustive EPR, (19)F NMR, UV-vis, electrochemical, kinetic, synthetic, and computational studies that was revealed to be a radical chain mechanism in which copper acts as an initiator is reported.
A N3S(thioether)-ligated Cu(II)-superoxo with enhanced reactivity.
Comparisons of N4 vs N3S compound reduction potentials provide evidence that (DMA)N3S is a weaker donor to copper ion than is found for any N4 ligand-complex.
Evidence for a Symmetrical Fluoronium Ion in Solution
Chemical and theoretical evidence is presented for the transient generation of a true symmetrical fluoronium ion in solution from an appropriately configured precursor.
Coordination chemistry and reactivity of a cupric hydroperoxide species featuring a proximal H-bonding substituent.
At -90 °C in acetone, a stable hydroperoxo complex [(BA)Cu(II)OOH](+) (2) (BA, a tetradentate N(4) ligand possessing a pendant -N(H)CH(2)C(6)H(5) group) is generated by reacting