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Kinetics and Activation Parameters for Oxidations of Styrene by Compounds I from the Cytochrome P450BM-3 (CYP102A1) Heme Domain and from CYP119, X. Yuan, Q. Wang, J. H. Horner, X. Sheng, M. Newcomb, Biochemistry, 2009, 48, 9140-9146. bi901258m
N-Heterocyclic Carbene Boryl Radicals: A New Class of Boron-Centered Radical, S.-H. Ueng, A. Solovyev, X. Yuan, S. J. Geib, L. Fensterbank, E. Lacote, M. Malacria, M. Newcomb, J. C. Walton, D. P. Curran, J. Am. Chem. Soc., 2009, 131, 11256-11262. ja904103x
Quantitative Production of Compound I from a Cytochrome P450 Enzyme at Low Temperatures. Kinetics, Activation Parameters, and Kinetic Isotope Effects for Oxidation of Benzyl Alcohol, Q. Wang, X. Sheng, J. H. Horner, M. Newcomb, J. Am. Chem. Soc., 2009, 131, 10629-10636. ja9031105
Production of a Putative Iron(V)-Oxo Corrole Species by Photo-Disproportionation of a bis-Corrole Diiron(IV) m-Oxo Dimer; Implication for a Green Oxidation Catalyst, D. N. Harischandra, G. Lowery, R. Zhang, M. Newcomb, Org. Lett., 2009, 11, 2089-2092. ol900480p
Kinetics of Oxidation of Benzphetamine by Compounds I of Cytochrome P450 2B4 and Its Mutants, X. Sheng, H. Zhang, S.-C. Im, J. H. Horner, L. Waskell, P. F. Hollenberg, M. Newcomb, J. Am. Chem. Soc., 2009, 131, 2971-2976. ja808982g
Kinetic Isotope Effects in Hydroxylation Reactions Effected by Cytochrome P450 Compounds I Implicate Multiple Electrophilic Oxidants for P450-Catalyzed Oxidations, X. Sheng, H. Zhang, P. F. Hollenberg, M. Newcomb, Biochemistry, 2009, 48, 1620-1627. bi802279d
Highly Reactive Porphyrin-Iron-Oxo Derivatives Produced by Photolyses of Metastable Porphyrin-Iron(IV) Diperchlorates, Z. Pan, Q. Wang, X. Sheng, J. H. Horner, M. Newcomb, J. Am. Chem. Soc., 2009, 131, 2621-2628. ja807847q
Formation of Stable and Metastable Porphyrin- and Corrole-Iron(IV) Complexes and Isomerizations to Iron(III) Macrocycle Radical Cations, Z. Pan, D. Harischandra, M. Newcomb, J. Inorg. Biochem., 2009, 103, 174-181. j.jinorgbio.2009.09.017
The Grignard Reagent Formation Reaction of 2-Chloro-1,1,1-triphenylethane Revisited, F. Bickelhaupt, M. Newcomb, C. B. DeZutter, H. J. R. de Boer, Eur. J. Org. Chem., 2008, 6225-6231. ejoc.200800790.
Rate Constants for Hydrogen Atom Transfer Reactions from Bis(cyclopentadienyl)-titanium(III) Chloride-Complexed Water and Methanol to an Alkyl Radical, J. Jin, M. Newcomb, J. Org. Chem. 2008, 73, 7901-7905. jo801869r
Spectra and Kinetic Studies of the Compound I Derivative of Cytochrome P450 119, X. Sheng, J. H. Horner, M. Newcomb, J. Am. Chem. Soc., 2008, 130, 13310-13320. ja802652b
Rate Constants and Arrhenius Functions for Ring Opening of a Cyclobutylcarbinyl Radical Clock and for Hydrogen Atom Transfer from the Et3B-MeOH Complex, J. Jin, M. Newcomb, J. Org. Chem. 2008, 73, 4740-4742. jo800500e
Tunneling in C-H Oxidation Reactions by an Oxoiron(IV) Porphyrin Radical Cation: Direct Measurements of Very Large H/D Kinetic Isotope Effects, Z. Pan, J. H. Horner, M. Newcomb, J. Am. Chem. Soc., 2008, 130, 7776-7777. ja802484n
Rate Constants for 1,5- and 1,6-Hydrogen Atom Transfer Reactions of Mono-, Di-, and Tri-Aryl-Substituted Donors, Models for Hydrogen Atom Transfers in Polyunsaturated Fatty Acid Radicals, C. B. DeZutter, J. H. Horner, M. Newcomb, J. Phys. Chem. A 2008, 112, 1891-1896. jp710750f
X-Ray Absorption Spectroscopic Characterization of a Cytochrome P450 Compound II Derivative, M. Newcomb, J. A. Halgrimson, J. H. Horner, E. C. Wasinger, L. X. Chen, S. G. Sligar, Proc. Natl. Acad. Sci. USA, 2008, 105, 8179-8184. pnas0708299105
Laser Flash Photolysis Generation of High-Valent Transition Metal-Oxo Species: Insights from Kinetic Studies in Real Time, R. Zhang, M. Newcomb, Acc. Chem. Res. 2008, 41, 468-477. ar700175k
Kinetics and Mechanism of Oxidation Reactions of Prophyrin-Iron(IV)-Oxo Intermediates, Z. Pan, M. Newcomb, Inorg. Chem. 2007, 46, 6767-6774. ic700395j
Rate Constants for Reactions of Alkyl Radicals with Water and Methanol Complexes of Triethylborane, J. Jin, M. Newcomb, J. Org. Chem. 2007, 72, 5098-5103. jo070336s
Compatible Injection and Detection Systems for Studying the Kinetics of Excess Electron Transfer, L. Xu, J. Jin, M. Lal, P. Daublain, M. Newcomb, Org. Lett. 2007, 9, 1837-1840. ol070593j
Kinetic Studies of a Fast, Reversible Alkene Radical Cation Cyclization Reaction, J. H. Horner, M. Newcomb, J. Org. Chem. 2007, 72, 1609-1616. jo061868w
Products from Enzyme-Catalyzed Oxidations of Norcarenes, M. Newcomb, D. S. P. Lansakara-P., H.-Y. Kim, R. E. P. Chandrasena, S. J. Lippard, L, G. Beauvais, L. J. Murray, V. Izzo, P. F. Hollenberg, M. J. Coon, J. Org. Chem. 2007, 72, 1128-1133. jo061864r
Desaturase Reactions Complicate the Use of Norcarane as a Mechanistic Probe. Unraveling the Mixture of Twenty-Plus Products Formed in Enzyme-Catalyzed Oxidations of Norcarane, M. Newcomb, R. E. P. Chandrasena, D. S. P. Lansakara-P., H.-Y. Kim, S. J. Lippard, L, G. Beauvais, L. J. Murray, V. Izzo, P. F. Hollenberg, M. J. Coon, J. Org. Chem. 2007, 72, 1121-1127. jo061865j
Photochemical Production of a Highly Reactive Porphyrin-Iron-Oxo Species, Z. Pan, R. Zhang, L. W.-M. Fung, M. Newcomb, Inorg. Chem. 2007, 46, 1517-1519. ic061972w
Radical Heterolysis Reactions. Dynamics of Formation, Collapse, and Solvation of Ion Pairs Determined by a Competition Kinetic Method, J. H. Horner, M. Lal, M. Newcomb, Org. Lett. 2006, 8, 5497-5500. ol062242v
Kinetics of Two-Electron Oxidations by the Compound I Derivative of Chloroperoxidase, a Model for Cytochrome P450 Oxidants, R. Zhang, N. Nagraj, D. S. P. Lansakara-P., L. P. Hager, M. Newcomb, Org. Lett. 2006, 8, 2731-2734. ol060762k
Cytochrome P450 Compound I, M. Newcomb, R. Zhang, R. E. P. Chandrasena, J. A. Halgrimson, J. H. Horner, T. M. Makris, S. G. Sligar, J. Am. Chem. Soc. 2006, 128, 4580-4581. ja060048y
Kinetic Studies of Reactions of Iron(IV)-Oxo Prophyrin Radical Cations with Organic Reductants, Z. Pan, R. Zhang, M. Newcomb, J. Inorg. Biochem. 2006, 100, 524-532
Laser Flash Photolysis Production of Metal-Oxo Derivatives and Direct Kinetic Studies of Their Oxidation Reactions, M. Newcomb, R. Zhang, Z. Pan, D. N. Harischandra, R. E. P. Chandrasena, J. H. Horner, E. Martinez II, Catalysis Today 2006, 117, 98-104
Rate Constants for Anilidyl Radical Cyclization Reactions, E. Martinez II, M. Newcomb, J. Org. Chem. 2006, 71, 557-561. jo051953o
Highly Reactive Electrophilic Oxidants in Cytochrome P450 Catalysis, M. Newcomb, R. E. P. Chandrasena, Biochem. Biophys. Res. Commun. 2005, 338, 394-403
Acid-, Base-, and Lewis Acid-Catalyzed Heterolysis of Methoxide from an alpha-Hydroxy-beta-methoxy Radical. Models for Reactions Catalyzed by Coenzyme B12-Dependent Diol Dehydratase, L. Xu, M. Newcomb, J. Org. Chem. 2005, 70, 9296-9303. jo051349d
Photochemical Generation of a Highly Reactive Iron-Oxo Intermediate. A True Iron(V)-Oxo Species?, D. N. Harischandra, R. Zhang, M. Newcomb, J. Am. Chem. Soc. 2005, 127, 13776-13777. ja0542439
Laser Flash Photolysis Production of Compound I and Its Relatives, M. Newcomb, R. Zhang, R. E. P. Chandrasena, J. H. Horner, E. Martinez II, D. N. Harischandra, Z. Pan, Proc. 14th Intl. Conf. Cytochrome P450, 2005, 41-47.
Laser Flash Photolysis Generation and Kinetic Studies of Corrole-Manganese(V)-Oxo Intermediates, R. Zhang, D. N. Harischandra, M. Newcomb, Chem. Eur. J. 2005, 11, 5713-5720
Formation of Compounds I by Photo-Oxidation of Compounds II, R. Zhang, R. E. P. Chandrasena, E. Martinez II, J. H. Horner, M. Newcomb, Org. Lett. 2005, 7, 1193-1195. ol050296j
Laser Flash Photolysis Generation and Kinetic Studies of Porphyrin Manganese-Oxo Intermediates. Rate Constants for Oxidations Effected by Porphyrin-MnV-Oxo Species and Apparent Disproportionation Equilibrium Constants for Porphyrin-MnIV-Oxo Species, R. Zhang, J. H. Horner, M. Newcomb, J. Am. Chem. Soc. 2005, 127, 6573-6582. ja045042s
Lewis Acid Catalysis in Heterolysis Reactions of Glycol Ether Radicals Mimicking Diol Dehydratase-Catalyzed Reactions, N. Miranda, L. Xu, M. Newcomb, Org. Lett. 2004, 6, 4511-4514. ol0481131
Kinetics of Radical Heterolysis Reactions Forming Alkene Radical Cations, J. H. Horner, L. Bagnol, M. Newcomb, J. Am. Chem. Soc. 2004, 126, 14979-14987. ja046089g
Solvent Polarity Effects and Limited Acid Catalysis in Rearrangements of Model Radicals for the Methylmalonyl-CoA Mutase- and Isobutyryl-CoA Mutase-Catalyzed Isomerization Reactions, P. Daublain, J. H. Horner, A. Kuznetsov, M. Newcomb, J. Am. Chem. Soc. 2004, 126, 5368-5369. ja049913+
An Accelerating-Reporting Group for Studies of Radical Heterolysis Reactions and Its Application in an Acid-Catalyzed Fragmentation Reaction of an a,b-Dimethoxy Radical, M. Newcomb, N. Miranda, J. Org. Chem. 2004, 69, 6515-6520. jo0357972
Hydroxylation by the Hydroperoxy-Iron Species in Cytochrome P450 Enzymes, R. E. P. Chandrasena, K. P. Vatsis, M. J. Coon, P. F. Hollenberg, M. Newcomb, J. Am. Chem. Soc. 2004, 126, 115-126. ja038237t
Direct Detection of Ion Pair Formation and Collapse in a Migration Reaction of a b-Phosphate Radical, L. Bagnol, J. H. Horner, M. Newcomb, Org. Lett. 2003, 5, 5055-5058. ol036052l
Laser Flash Photolysis Formation and Direct Kinetic Studies of Manganese(V)-oxo Porphyrin Intermediates, R. Zhang, M. Newcomb, J. Am. Chem. Soc. 2003, 125, 12418-12419. ja0377448
Carboxylate-Substituted Radicals from Phenylselenide Derivatives. Designs on Models for Coenzyme B12-Dependent Enzyme-Catalyzed Rearrangements, N. Miranda, P. Daublain, J. H. Horner, M. Newcomb, J. Am. Chem. Soc. 2003, 125, 5260-5261. ja034888d
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