1,4-cyclohexadiene

cyclohexa-1,4-diene PubMed: 1,4-Cyclohexadienes-Easy Access to a Versatile Building Block via Transition-Metal-Catalysed Diels-Alder Reactions. PubMed: Substrate dependent reaction channels of the Wolff-Kishner reduction reaction: A theoretical study. PubMed: 1,4-Bis(trimethylsilyl)-1,4-diaza-2,5-cyclohexadienes as strong salt-free reductants for generating low-valent early transition metals with electron-donating ligands. PubMed: Kinetic and mechanistic studies of carbon-to-metal hydrogen atom transfer involving Os-centered radicals: evidence for tunneling. PubMed: H2O2-dependent substrate oxidation by an engineered diiron site in a bacterial hemerythrin. PubMed: Dichotomous hydrogen atom transfer vs proton-coupled electron transfer during activation of X-H bonds (X = C, N, O) by nonheme iron-oxo complexes of variable basicity. PubMed: C-H activation by a diselenido dinickel(II) complex. PubMed: Signatures in vibrational and UV-visible absorption spectra for identifying cyclic hydrocarbons by graphene fragments. PubMed: Organocatalytic asymmetric desymmetrization: efficient construction of spirocyclic oxindoles bearing a unique all-carbon quaternary stereogenic center via sulfa-Michael addition. PubMed: Zero-point corrections for isotropic coupling constants for cyclohexadienyl radical, C₆H₇ and C₆H₆Mu: beyond the bond length change approximation. PubMed: Matrix isolation study of the ozonolysis of 1,3- and 1,4-cyclohexadiene: identification of novel reaction pathways. PubMed: Noninteracting, vicinal frustrated P/B-Lewis pair at the norbornane framework: synthesis, characterization, and reactions. PubMed: Salt-free reducing reagent of bis(trimethylsilyl)cyclohexadiene mediates multielectron reduction of chloride complexes of W(VI) and W(IV). PubMed: An aerobic oxidation/homolytic substitution-cascade for stereoselective methylsulfanyl-cyclization of 4-pentenols. PubMed: Utilizing redox-mediated Bergman cyclization toward the development of dual-action metalloenediyne therapeutics. PubMed: Stereoselective syntheses of racemic quercitols and bromoquercitols starting from cyclohexa-1,4-diene: gala-, epi-, muco-, and neo-quercitol. PubMed: A mononuclear non-heme manganese(IV)-oxo complex binding redox-inactive metal ions. PubMed: Effect of metal ions on the reactions of the cumyloxyl radical with hydrogen atom donors. Fine control on hydrogen abstraction reactivity determined by Lewis acid-base interactions. PubMed: Copper complexes of the non-innocent β-diketiminate ligand containing phenol groups. PubMed: Crystal structure of the hexachlorocyclohexane dehydrochlorinase (LinA-type2): mutational analysis, thermostability and enantioselectivity. PubMed: Catalytic desymmetrization of cyclohexadienes by asymmetric bromolactonization. PubMed: Biodegradation of lindane using a novel yeast strain, Rhodotorula sp. VITJzN03 isolated from agricultural soil. PubMed: Syntheses, thermal reactivities, and computational studies of aryl-fused quinoxalenediynes: effect of extended benzannelation on Bergman cyclization energetics. PubMed: Transient X-ray fragmentation: probing a prototypical photoinduced ring opening. PubMed: Valuable new cyclohexadiene building blocks from cationic η5-iron-carbonyl complexes derived from a microbial arene oxidation product. PubMed: The role of group 14 element hydrides in the activation of C-H bonds in cyclic olefins. PubMed: Ligand effects on hydrogen atom transfer from hydrocarbons to three-coordinate iron imides. PubMed: Correlating DFT-calculated energy barriers to experiments in nonheme octahedral Fe(IV)O species. PubMed: N,N-addition of frustrated Lewis pairs to nitric oxide: an easy entry to a unique family of aminoxyl radicals. PubMed: A new method for investigating infrared spectra of protonated benzene (C6H7+) and cyclohexadienyl radical (c-C6H7) using para-hydrogen. PubMed: Hyaladione, an S-methyl cyclohexadiene-dione from Hyalangium minutum. PubMed: Reactions of neutral gas-phase yttrium atoms with two cyclohexadiene isomers. PubMed: Shapeshifting: ligation by 1,4-cyclohexadiene induces a structural change in Ag5(+). PubMed: Nonheme iron-oxo and -superoxo reactivities: O2 binding and spin inversion probability matter. PubMed: Comparison of metabolomic profiles obtained using chemical ionization and electron ionization MS in exhaled breath. PubMed: Modulation of volatile organic compound formation in the Mycodiesel-producing endophyte Hypoxylon sp. CI-4. PubMed: Selective molecular sequestration with concurrent natural product functionalization and derivatization: from crude natural product extracts to a single natural product derivative in one step. PubMed: Unravelling the details of vitamin D photosynthesis by non-adiabatic molecular dynamics simulations. PubMed: Enzymes involved in the biodegradation of hexachlorocyclohexane: a mini review. PubMed: Carbon radical generation by d0 tantalum complexes with α-diimine ligands through ligand-centered redox processes. PubMed: Shifting from Ziegler-Natta to Philips-type catalyst? A simple and safe access to reduced titanium systems for ethylene polymerization. PubMed: A mechanistic analysis of the Birch Reduction. PubMed: Oxidative properties of a nonheme Ni(II)(O2) complex: Reactivity patterns for C-H activation, aromatic hydroxylation and heteroatom oxidation. PubMed: Heterogeneous reaction of suspended phosmet particles with NO3 radicals. PubMed: Through-bond interactions and the localization of excited-state dynamics. PubMed: Reactivity of copper(II)-alkylperoxo complexes. PubMed: Fine-tuning alkyne cycloadditions: Insights into photochemistry responsible for the double-strand DNA cleavage via structural perturbations in diaryl alkyne conjugates. PubMed: Probing lipid peroxidation by using linoleic acid and benzophenone. PubMed: Photobehavior of mixed nπ*/ππ* triplets: simultaneous detection of the two transients, solvent-dependent hydrogen abstraction, and reequilibration upon protein binding. PubMed: C-H activation of cycloalkenes by dimetallynes (M = Ge, Sn) under ambient conditions. PubMed: Cytotoxic 1,2-dialkynylimidazole-based aza-enediynes: aza-Bergman rearrangement rates do not predict cytotoxicity. PubMed: Synthesis and Polymerization of Renewable 1,3-Cyclohexadiene Using Metathesis, Isomerization, and Cascade Reactions with Late-metal Catalysts. PubMed: Opportunistic use of tetrachloroaurate photolysis in the generation of reductive species for the production of gold nanostructures. PubMed: Kinetic solvent effects on hydrogen abstraction reactions from carbon by the cumyloxyl radical. The importance of solvent hydrogen-bond interactions with the substrate and the abstracting radical. PubMed: Surface-initiated ring-opening metathesis polymerization in the vapor phase: an efficient method for grafting cyclic olefins with low strain energies. PubMed: Functionalized tetrahydrofurans from alkenols and olefins/alkynes via aerobic oxidation-radical addition cascades. PubMed: Breathing and twisting: an investigation of framework deformation and guest packing in single crystals of a microporous vanadium benzenedicarboxylate. PubMed: Clean photodecomposition of 1-methyl-4-phenyl-1H-tetrazole-5(4H)-thiones to carbodiimides proceeds via a biradical. PubMed: Diffusion controlled hydrogen atom abstraction from tertiary amines by the benzyloxyl radical. The importance of C-H/N hydrogen bonding. PubMed: Hyperaromatic stabilization of arenium ions. PubMed: Hypoxylon sp., an endophyte of Persea indica, producing 1,8-cineole and other bioactive volatiles with fuel potential. PubMed: Synthesis of enantiopure trans-N-Boc-3-aminobicyclo[2.2.2]octane-2-carboxylic acids and their bicyclic 1,3-amino alcohol derivatives via the [4+2] cycloaddition of 1,3-cyclohexadiene to a chiral β-nitroacrylate. PubMed: Dual reactivity of hydroxy- and methoxy- substituted o-quinone methides in aqueous solutions: hydration versus tautomerization. PubMed: Transforming terpene feedstock into polyketide architecture. PubMed: Crystal structure of γ-hexachlorocyclohexane Dehydrochlorinase LinA from Sphingobium japonicum UT26. PubMed: Accessing the antipodal series in microbial arene oxidation: a novel diene rearrangement induced by tricarbonyliron(0) complexation. PubMed: Kinetic solvent effects on hydrogen abstraction reactions from carbon by the cumyloxyl radical. The role of hydrogen bonding. PubMed: A laser flash photolysis and theoretical study of hydrogen abstraction from phenols by triplet alpha-naphthoflavone. PubMed: The crystal structure of a high-spin oxoiron(IV) complex and characterization of its self-decay pathway. PubMed: Regioselective synthesis of aniline-derived 1,3- and Ci-symmetric 1,4-diols from trans-1,4-cyclohexadiene dioxide. PubMed: Conformationally gated fragmentations and rearrangements promoted by interception of the Bergman cyclization through intramolecular H-abstraction: a possible mechanism of auto-resistance to natural enediyne antibiotics? PubMed: Reaction of a (Salen)ruthenium(VI) nitrido complex with thiols. C-H bond activation by (Salen)ruthenium(IV) sulfilamido species. PubMed: A functional genomics approach to tanshinone biosynthesis provides stereochemical insights. PubMed: Aromatic compounds as synthons for 1,3-dicarbonyl derivatives. PubMed: Iridium(III) catalyzed diastereo- and enantioselective C-H bond functionalization. PubMed: Reductive and brominative termination of alkenol cyclization in aerobic cobalt-catalyzed reactions. PubMed: Studies towards the total synthesis of lycoposerramine A. Synthesis of a model for the tetracyclic core. PubMed: Crystallization and preliminary X-ray analysis of gamma-hexachlorocyclohexane dehydrochlorinase LinA from Sphingobium japonicum UT26. PubMed: Mechanistic insight into the palladium-catalyzed 1,4-oxidation of 1,3-dienes to 1,4-dicarboxy-alk-2-enes. PubMed: Aliphatic C-H bond activation initiated by a (mu-eta2:eta2-peroxo)dicopper(II) complex in comparison with cumylperoxyl radical. PubMed: Enthalpy of formation of the cyclohexadienyl radical and the C-H bond enthalpy of 1,4-cyclohexadiene: an experimental and computational re-evaluation. PubMed: Desymmetrization of hydrazinocyclohexadienes: a new approach for the synthesis of polyhydroxylated aminocyclohexanes. PubMed: Effect of imidazole and phenolate axial ligands on the electronic structure and reactivity of oxoiron(IV) porphyrin pi-cation radical complexes: drastic increase in oxo-transfer and hydrogen abstraction reactivities. PubMed: Enantioselective reactions of donor/acceptor carbenoids derived from alpha-aryl-alpha-diazoketones. PubMed: Photochemical strategies for the synthesis of gold nanoparticles from Au(III) and Au(I) using photoinduced free radical generation. PubMed: Enol formation and ring-opening in OH-initiated oxidation of cycloalkenes. PubMed: Directed epoxidation of cyclohexa-1,4-dienes-stereoselective formation of up to six contiguous stereogenic centres. PubMed: Combined experimental and theoretical approach to understand the reactivity of a mononuclear Cu(II)-hydroperoxo complex in oxygenation reactions. PubMed: Reaction of phenols with the 2,2-diphenyl-1-picrylhydrazyl radical. Kinetics and DFT calculations applied to determine ArO-H bond dissociation enthalpies and reaction mechanism. PubMed: Characterization, reactivity and photosensitizing properties of the triplet excited state of alpha-lapachone. PubMed: Expansion by contraction: diversifying the photochemical reactivity scope of diazo-oxochlorins toward development of in situ alkylating agents. PubMed: Simultaneous determination of trace uranium(VI) and zinc(II) by adsorptive cathodic stripping voltammetry with aluminon ligand. PubMed: Thermal C1-C5 diradical cyclization of enediynes. PubMed: Catalytic tuning of a phosphinoethane ligand for enhanced C-H activation. PubMed: Transition states for the dimerization of 1,3-cyclohexadiene: a DFT, CASPT2, and CBS-QB3 quantum mechanical investigation. PubMed: Energetic differences between the five- and six-membered ring hydrocarbons: strain energies in the parent and radical molecules. PubMed: Theoretical study of multiphoton ionization of cyclohexadienes and unimolecular decomposition of their mono- and dications. PubMed: Laser flash photolysis study of the triplet reactivity of beta-lapachones. PubMed: A new 18F-labeled fluoroacetylmorpholino derivative of vesamicol for neuroimaging of the vesicular acetylcholine transporter. PubMed: Chiral version of the Burgess reagent and its reactions with oxiranes: application to the formal enantiodivergent synthesis of balanol. PubMed: A two-state reactivity rationale for counterintuitive axial ligand effects on the C-H activation reactivity of nonheme FeIV=O oxidants. PubMed: Chemical synthesis and biological evaluation of a NAD(P)H:quinone oxidoreductase-1 targeted tripartite quinone drug delivery system. PubMed: On the mechanism and kinetics of radical reactions of epoxyketones and epoxynitriles induced by titanocene chloride. PubMed: Fluorescent and affinity-based tools to detect cysteine sulfenic acid formation in proteins. PubMed: An efficient one-pot synthesis of tethered cyclohexadiene enaminonitriles from methyl-ketones: an effective route to quinazolines. PubMed: Aqueous Ti(IV)-catalyzed Diels-Alder reaction. PubMed: Vibrational characterization of different benzene phases on flat and vicinal Si(100) surfaces. PubMed: Energetics of the allyl group. PubMed: Concise asymmetric total synthesis of scyphostatin, a potent inhibitor of neutral sphingomyelinase. PubMed: Analysis of the role of LinA and LinB in biodegradation of delta-hexachlorocyclohexane. PubMed: Iodocyclization reactions for the desymmetrization of cyclohexa-1,4-dienes. PubMed: (N-heterocyclic carbene)gold(I)-catalyzed cycloisomerization of cyclohexadienyl alkynes to Tetracyclo[3.3.0.0(2,8).0(4,6)]octanes. PubMed: N,N-Di(4-halophenyl)nitrenium ions: nucleophilic trapping, aromatic substitution, and hydrogen atom transfer. PubMed: Synthesis of multiply substituted alkylidene silacyclohexadiene derivatives via palladium-catalyzed insertion of alkynes into alkylidene silacyclobutenes. PubMed: Total synthesis of the chlorinated marine natural product dysamide B. PubMed: Dynamics of surface catalyzed reactions; the roles of surface defects, surface diffusion, and hot electrons. PubMed: Probing weak molecular orbital interactions in non-conjugated diene molecules by means of near-edge X-ray absorption spectroscopy. PubMed: Hydrogen atom abstraction by a high-valent manganese(V)-oxo corrolazine. PubMed: Synthesis of 1,4-cyclohexadiene-based acetylenic macrocycles with Cadiot-Chodkiewicz coupling. Structure of a tub-shaped tetrameric container. PubMed: Ionizing radiation-induced destruction of benzene and dienes in aqueous media. PubMed: Tandem photocycloaddition-retro-mannich fragmentation of enaminones. A route to spiropyrrolines and the tetracyclic core of koumine. PubMed: Intramolecular bromo-amination of 1,4-cyclohexadiene aminal: one-pot discrimination of two olefins and concise asymmetric synthesis of (-)-gamma-lycorane. PubMed: A new approach to promoting sluggish Diels-Alder reactions: dihapto-coordination of the diene. PubMed: Spectroscopic analysis of small organic molecules: a comprehensive near-edge x-ray-absorption fine-structure study of C6-ring-containing molecules. PubMed: Ortho effect in the Bergman cyclization: comparison of experimental approaches and dissection of cycloaromatization kinetics. PubMed: Doubly protonated benzene in the gas phase. PubMed: A transition-metal-catalyzed enediyne cycloaromatization. PubMed: Carbon-to-metal hydrogen atom transfer: direct observation using time-resolved infrared spectroscopy. PubMed: Anharmonic compression of the glitter lattice. PubMed: Photosensitized conversion of 9,10-deoxytridachione to photodeoxytridachione. PubMed: Evolution of functional cyclohexadiene-based synthetic reagents: the importance of becoming aromatic. PubMed: A terminal Ni(III)-imide with diverse reactivity pathways. PubMed: Bergman cyclization of sterically hindered substrates and observation of phenyl-shifted products. PubMed: Triplet acetylenes as synthetic equivalents of 1,2-bicarbenes: phantom n,pi state controls reactivity in triplet photocycloaddition. PubMed: A kinetics and mechanistic study of the OH and NO2 initiated oxidation of cyclohexa-1,3-diene in the gas phase. PubMed: Dienophile twisting and substituent effects influence reaction rates of intramolecular Diels-Alder cycloadditions: a DFT study. PubMed: 1,4-Addition of benzene to a dihydrocyclopent[a]indene diradical: synthesis and DFT study. PubMed: Controlling both ground- and excited-state thermal barriers to Bergman cyclization with alkyne termini substitution. PubMed: IKCa-channel blockers. Part 2: discovery of cyclohexadienes. PubMed: Benzene formation during aquasonolysis of selected cyclic C6Hx hydrocarbons. PubMed: Sonochemical reaction of selected cyclic C6Hx hydrocarbons in organic solvents. PubMed: Laser-induced fluorescence of cyclohexadienyl (c-C6H7) radical in the gas phase. PubMed: Stereoselective synthesis of (+)-nephrosteranic acid, (+)-trans-cognac lactone, and (+)-trans-whisky lactone using a chiral cyclohexadienyl Ti compound. PubMed: Triterpenoid total synthesis. Synthesis and absolute configuration of mispyric acid. PubMed: A new synthesis of pentafluorosulfanylbenzene. PubMed: Ring synthesis by stereoselective, methylene-free enyne cross metathesis. PubMed: Ozonolysis of 1,4-cyclohexadienes in the presence of methanol and acid. Mechanism and intermediates in the conversion of 1,4-cyclohexadiene derivatives to beta-keto esters. PubMed: alpha,5-didehydro-3-picoline diradicals from skipped azaenediynes: computational and trapping studies of an aza-Myers-Saito cyclization. PubMed: Reaction of tetramethylpiperidine N-oxides with persistent triplet diphenylcarbenes. PubMed: Aquasonolysis of selected cyclic C(6)H(x) hydrocarbons. PubMed: Insertion of alkynes into the Pt-Si bond of silylplatinum complexes leading to the formation of 4-sila-3-platinacyclobutenes and 5-sila-2-platina-1,4-cyclohexadienes. PubMed: Palladium-catalyzed equilibrium addition of acidic OH groups across dienes. PubMed: Synthesis and cycloaromatization of a cyclic enyne-allene prodrug. PubMed: Monomeric MnIII/II and FeIII/II complexes with terminal hydroxo and oxo ligands: probing reactivity via O-H bond dissociation energies. PubMed: A mechanistic dichotomy in ruthenium-catalyzed propargyl alcohol reactivity: a novel hydrative diyne cyclization. PubMed: Ambient temperature activation of haloporphyrinic-enediynes: electronic contributions to bergman cycloaromatization. PubMed: A novel and short synthesis of (1,4/2)-cyclohex-5-ene-triol and its conversion to (+/-)-proto-quercitol. PubMed: Octahedral Ru(II) amido complexes TpRu(L)(L')(NHR) (Tp = hydridotris(pyrazolyl)borate; L = L' = P(OMe)3 or PMe3 or L = CO and L' = PPh3; R = H, Ph, or tBu): synthesis, characterization, and reactions with weakly acidic C-H bonds. PubMed: Photochemistry of diethynyl sulfides: a cycloaromatization for the formation of five-membered rings. PubMed: Synthesis of functionalized 1,4-cyclohexadienes through intramolecular anionic dearomatization of N-alkyl-N-benzyldiphenylphosphinamides. Insight into the reaction mechanism. PubMed: Inversion of 4-methoxybenzophenone triplet in aqueous solutions. PubMed: Fluorescent quenching of the 2-naphthoxide anion by aliphatic and aromatic halides. Mechanism and consequences of electron transfer reactions. PubMed: Synthesis of the 5-7-6 core of guanacastepenes. Construction of C8 quaternary carbon via the inversion of stereochemistry. PubMed: 1,2-dithiin annelated with bicyclo[2.2.2]octene frameworks. One-electron and two-electron oxidations and formation of a novel 2,3,5,6-tetrathiabicyclo[2.2.2]oct-7-ene radical cation with remarkable stability owing to a strong transannular interaction. PubMed: Cyclohexadiene-trans-diols as versatile starting material in natural product synthesis: short and efficient synthesis of iso-crotepoxide and ent-senepoxide. PubMed: Regio- and diastereoselective preparation of tetrahydrobenzo[c]-1-aza-2lambda(5)-phospholes through dearomatization cyclization of lithiated N-benzyl-N-alkyl(diphenyl)phosphinamides. Synthesis of gamma-(N-alkylamino)phosphinic acids. PubMed: Oxidations of hydrocarbons by manganese(III) tris(hexafluoroacetylacetonate). PubMed: Evidence for facile atropisomerism and simple (non-nucleophilic) biradical-forming cycloaromatization within kedarcidin chromophore aglycon. PubMed: Spin surface crossing in chromium-mediated olefin epoxidation with O(2). PubMed: Synthesis of a novel, highly symmetric bis-oxa-bridged compound. PubMed: Regiochemistry of the photostimulated reaction of the phthalimide anion with 1-iodoadamantane and tert-butylmercury chloride by the S(RN)1 mechanism. PubMed: A highly enantioselective intramolecular Heck reaction with a monodentate ligand. PubMed: C-H bond activation by a ferric methoxide complex: modeling the rate-determining step in the mechanism of lipoxygenase. PubMed: Preparation of the octahedral d(6) amido complex TpRu(CO)(PPh(3))(NHPh) (Tp = Hydridotris(pyrazolyl)borate): solid-state structural characterization and reactivity. PubMed: Formation, characterization, and reactivity of bis(mu-oxo)dinickel(III) complexes supported by a series of bis[2-(2-pyridyl)ethyl]amine ligands. PubMed: Desaturation reactions catalyzed by soluble methane monooxygenase. PubMed: Thermolysis of Benzoenyne-Allenes To Form Biradicals and Subsequent Intramolecular Trapping with a Tetraarylallene To Generate Two Triarylmethyl Radical Centers. PubMed: Photoreduction of Azoalkanes by Direct Hydrogen Abstraction from 1,4-Cyclohexadiene, Alcohols, Stannanes, and Silanes. PubMed: Generation and reactivity of the 4-aminophenyl cation by photolysis of 4-chloroaniline. PubMed: Product studies and laser flash photolysis on alkyl radicals containing two different beta-leaving groups are consonant with the formation of an olefin cation radical. PubMed: Diels-Alder reaction of 1,3-butadiene derivatives with 1-methyl-2(1H)-quinolones having an electron-withdrawing group at the 4-position. PubMed: Mechanism of lipid peroxidation photosensitized by tiaprofenic acid: product studies using linoleic acid and 1,4-cyclohexadienes as model substrates. PubMed: A nonheme iron(II) complex that models the redox cycle of lipoxygenase. PubMed: A solvolytic C-C cleavage reaction of 6-acetoxycyclohexa-2,4-dienones: mechanistic implications for the intradiol catechol dioxygenases. PubMed: A molecular logic gate. PubMed: cis,cis,cis-tetramethyl 1,2,4,5-cyclohexanetetracarboxylate PubMed: Reductions with lithium in low molecular weight amines and ethylenediamine PubMed: 2,3-Dioxabicyclo PubMed: Iodophosphoryloxylation of carbon-carbon multibonds and its application to glycals PubMed: Diels-alder adducts of 5-alkynylcyclopentadienols with tetracyanoethylene and dimethyl acetylenedicarboxylate: An X-ray crystallographic study of unexpected rearrangement products PubMed: Hydrogen atom abstraction by Cu(II)- and Zn(II)-phenoxyl radical complexes, models for the active form of galactose oxidase. PubMed: Mode of substrate interaction and energetics of carbon-oxygen bond formation of the dopamine beta-monooxygenase reaction. PubMed: Two different types of dehalogenases, LinA and LinB, involved in gamma-hexachlorocyclohexane degradation in Sphingomonas paucimobilis UT26 are localized in the periplasmic space without molecular processing. PubMed: Novel hydrophilic cyclic monomers in hydrogel synthesis. PubMed: Purification and characterization of a haloalkane dehalogenase of a new substrate class from a gamma-hexachlorocyclohexane-degrading bacterium, Sphingomonas paucimobilis UT26. PubMed: A Concise and Convenient Synthesis of DL-proto-Quercitol and DL-gala-Quercitol via Ene Reaction of Singlet Oxygen Combined with [2 + 4] Cycloaddition to Cyclohexadiene. PubMed: Reactions of Alkynyldihaloboranes with 1,3-Dienes. 1,4-Alkynylborations and Stepwise Diels-Alder Reactions. PubMed: Acceleration of a Diels-Alder reaction by a self-assembled molecular capsule. PubMed: Stereoselective Epoxidation of Cyclohexa-Anellated Triquinacenes with Iodine/Silver(I) Oxide As Compared to m-Chloroperbenzoic Acid(1). PubMed: Influence of combined AC-DC magnetic fields on free radicals in organized and biological systems. Development of a model and application of the radical pair mechanism to radicals in micelles. PubMed: Iron(II)/reductant(DH2)-induced activation of dioxygen for the hydroxylation and ketonization of hydrocarbons; mimics for the cytochrome P-450 hydroxylase/reductase system. PubMed: The oxidation of tetrasubstituted alkenes by cytochrome P450. PubMed: Determination of ion frequencies in a quadrupole ion trap by using a fast direct current pulse as pump and a laser probe. PubMed: Application of the radical pair mechanism to free radicals in organized systems: can the effects of 60 Hz be predicted from studies under static fields? PubMed: Cloning and sequencing of a dehalogenase gene encoding an enzyme with hydrolase activity involved in the degradation of gamma-hexachlorocyclohexane in Pseudomonas paucimobilis. PubMed: Increased NAD(P)H:(quinone-acceptor)oxidoreductase activity is associated with density-dependent growth inhibition of normal but not transformed cells. PubMed: Effect of alpha-tocopherol on the volatile thermal decomposition products of methyl linoleate hydroperoxides. PubMed: Role of Ethylene Metabolism in Amaranthus retroflexus. PubMed: A phase II clinical trial of diaziquone in the treatment of patients with recurrent endometrial carcinoma. A Gynecologic Oncology Group study. PubMed: Ab initio molecular electrostatic potentials of perillartine analogues: implications for sweet-taste receptor recognition. PubMed: Reactivity of perhydroxyl (HOO.) with 1,4-cyclohexadiene (model for allylic groups in biomembranes). PubMed: Tris(picolinato)manganese(II): a chemical model for the mechanism and function of mitochondrial superoxide dismutase. PubMed: Reactivity and activation of dioxygen-derived species in aprotic media (a model matrix for biomembranes). PubMed: Effect of AZQ (1,4-cyclohexadiene-1,4-diacarbamic acid-2,5-bis(1-aziridinyl)-3,6 -dioxodiethylester) in recurring supratentorial malignant brain gliomas--a Phase II study. EORTC Brain Tumour Cooperative Group. PubMed: Base (O.-2, e-, or OH-)-induced autoxygenation of organic substrates: a model chemical system for cytochrome P-450-catalyzed monoxygenation and dehydrogenation by dioxygen. PubMed: In vitro versus in vivo correlations of chemosensitivity of human medulloblastoma. PubMed: Activation and inactivation of cancer chemotherapeutic agents by rat hepatocytes cocultured with human tumor cell lines. PubMed: Chemotherapy and radiation therapy of human medulloblastoma in athymic nude mice. PubMed: Survival and cell cycle kinetics responses of Chinese hamster ovary cells, and clones of human adenocarcinoma of the stomach and astrocytoma to diaziquone (AZQ) in vitro. PubMed: Phase II clinical evaluation of AZQ in colorectal cancer. PubMed: L-1,4-cyclohexadiene-1-alanine, an antimetabolite of l-phenylalanine produced by a Pseudomonas. PubMed: Combined modality treatment using radiation and/or chemotherapy in an athymic nude mouse-human medulloblastoma and glioblastoma xenograft model. PubMed: Potential CNS antitumor agents VI: aziridinylbenzoquinones III. PubMed: Potential new artificial sweetener from study of structure-taste relationships. PubMed: Letter: The effect of crystal packing and defects on desolvation of hydrate crystals of caffeine and L-(--)-1,4-cyclohexadiene-1-alanine. PubMed: Use of L-1,4-cyclohexadiene-1-alanine in peptide synthesis as a phenylalanine analog. PubMed: The solid-state dehydrogenation of L-1,4-cyclohexadiene-1-alanine hydrate to L-phenylalanine. PubMed: L-1,4-cyclohexadiene-1-alanine, an antagonist of phenylalanine from Streptomyces. PubMed: 1,4-cyclohexadiene-1-alanine (2,5-dihydrophenylalanine) a new inhibitor of phenylalanine for the rat and Leuconostoc dextranicum 8086.