In situ structural observation of a substrate-and peroxide-bound high-spin ferric-hydroperoxo intermediate in the P450 enzyme CYP121

RC Nguyen, I Davis, M Dasgupta, Y Wang… - Journal of the …, 2023 - ACS Publications
The P450 enzyme CYP121 from Mycobacterium tuberculosis catalyzes a carbon–carbon (C–
C) bond coupling cyclization of the dityrosine substrate containing a diketopiperazine ring …

Manganese Schiff base complexes, crystallographic studies, anticancer activities, and molecular docking

AT Odularu - Journal of Chemistry, 2022 - Wiley Online Library
Choice of ligands is significant to successful synthesis of metal complexes (coordination
compounds). This study reports the use of Schiff base as the right ligand to control the poor …

Isolating Fe-O2 Intermediates in Dioxygen Activation by Iron Porphyrin Complexes

X Lu, S Wang, JH Qin - Molecules, 2022 - mdpi.com
Dioxygen (O2) is an environmentally benign and abundant oxidant whose utilization is of
great interest in the design of bioinspired synthetic catalytic oxidation systems to reduce …

Nonheme Iron (III) Azide and Iron (III) Isothiocyanate Complexes: Radical Rebound Reactivity, Selectivity, and Catalysis

V Yadav, L Wen, RJ Rodriguez… - Journal of the …, 2022 - ACS Publications
The new nonheme iron complexes FeII (BNPAPh2O)(N3)(1), FeIII (BNPAPh2O)(OH)(N3)(2),
FeII (BNPAPh2O)(OH)(3), FeIII (BNPAPh2O)(OH)(NCS)(4), FeII (BNPAPh2O)(NCS)(5), FeIII …

Hydroxyl Transfer to Carbon Radicals by Mn (OH) vs Fe (OH) Corrole Complexes

DC Cummins, JG Alvarado, JPT Zaragoza… - Inorganic …, 2020 - ACS Publications
The transfer of• OH from metal-hydroxo species to carbon radicals (R•) to give hydroxylated
products (ROH) is a fundamental process in metal-mediated heme and nonheme C–H bond …

Hydrogen atom abstraction by high-valent Fe (OH) versus Mn (OH) porphyrinoid complexes: mechanistic insights from experimental and computational studies

JPT Zaragoza, DC Cummins, MQE Mubarak… - Inorganic …, 2019 - ACS Publications
High-valent metal-hydroxide species have been implicated as key intermediates in
hydroxylation chemistry catalyzed by heme monooxygenases such as the cytochrome …

Bioinspired mononuclear Mn complexes for O 2 activation and biologically relevant reactions

EN Cook, CW Machan - Dalton Transactions, 2021 - pubs.rsc.org
A general interest in harnessing the oxidizing power of dioxygen (O2) continues to motivate
research efforts on bioinspired and biomimetic complexes to better understand how …

Capture of carbon monoxide using a heme protein model: from biomimetic chemistry of heme proteins to physiological and therapeutic applications

H Kitagishi, Q Mao - Polymer Journal, 2022 - nature.com
Abstract Hemoglobin (Hb) and myoglobin (Mb) are heme proteins that capture and transport
molecular oxygen (O2) in living organisms. Although mimicking the O2-binding function of …

Oxygen versus Sulfur Coordination in Cobalt Superoxo Complexes: Spectroscopic Properties, O2 Binding, and H-Atom Abstraction Reactivity

JB Gordon, T Albert, S Yadav, J Thomas… - Inorganic …, 2022 - ACS Publications
A five-coordinate, disiloxide-ligated cobalt (II)(S= 3/2) complex (1) was prepared as an
oxygen-ligated analogue to the previously reported silanedithiolate-ligated CoII …

Synthesis of 2,4,5-Trisubstituted Oxazoles from Copper-Mediated Benzylic sp3 C–H Aerobic Oxidative Annulation of Ketones and Amines via a Cascade Reaction

M Mazibuko, V Jeena - The Journal of Organic Chemistry, 2022 - ACS Publications
The functionalization of sp3 carbons is deemed challenging in synthetic organic chemistry
yet has tremendous potential in producing potent organic compounds. A facile synthesis of …