ライフサイエンスコーパス: hydrogen atom

1 igand efficiency (0.45-0.50 kcal/mol per non-hydrogen atom).

2 the unavailability of a syn-periplanar beta-hydrogen atom.

3 the central B-B bond is bridged by a single hydrogen atom.

4 hrough the abstraction of a target substrate hydrogen atom.

5 operties are expected to mirror those of the hydrogen atom.

6 a ligand efficiency of 0.34 kcal/mol per non-hydrogen atom.

7 or of radical species and a chiral source of hydrogen atoms.

8 tible with carboxylic acids containing alpha-hydrogen atoms.

9 a large exospheric cloud composed mainly of hydrogen atoms.

10 after saturating the nanowire sidewall with hydrogen atoms.

11 cal conductance and the adsorption energy of hydrogen atoms.

12 g as both a photoreductant and the source of hydrogen atoms.

13 the sum of van der Waals radii of carbon and hydrogen atoms (2.9 A).

14 mplex enzyme that led us to identify (1) the hydrogen atoms abstracted from the substrate by the two

15 ters that enables 1e(-) activation of O2 for hydrogen atom abstraction (HAA) of substrate C-H bonds a

16 understanding the basis for the high rate of hydrogen atom abstraction (HAT) from dihydroanthracene (

17 retro-Bergman ring opening predominates over hydrogen atom abstraction (k-1 > k2) for 6,7-diethynylqu

18 the thermodynamic unfavorability of both its hydrogen atom abstraction and oligomerization reactions

19 inglet oxygen scavenging, electron transfer, hydrogen atom abstraction and radical adduct formation.

20 s in ((iPr)PDI)Mo(NH3)2(eta(2)-C2H4) enabled hydrogen atom abstraction and synthesis of a terminal ni

21 gma*z(2) excitation energy, which raises the hydrogen atom abstraction barrier above that found for t

22 te hexahydrate is described as a convenient, hydrogen atom abstraction catalyst that can mediate fluo

23 photocatalysts for the requisite high-energy hydrogen atom abstraction event.

24 thyl groups in 3, followed by intermolecular hydrogen atom abstraction from 2-MeTHF solvent.

25 an that of 1, possibly due to intramolecular hydrogen atom abstraction from benzylic methyl groups in

26 lysed ring contraction reaction initiated by hydrogen atom abstraction from C2'.

27 rmal conditions, the benzyl radicals undergo hydrogen atom abstraction from dibenzyl ketone and para-

28 uces vinyl radical intermediates that affect hydrogen atom abstraction from DNA, leading to the forma

29 These radicals can affect hydrogen atom abstraction from methanol and acetone.

30 n its chemistry than previously anticipated: hydrogen atom abstraction from Nalpha-cyclopropyltryptop

31 Moreover, a Hammett analysis of hydrogen atom abstraction from para-X-benzyl alcohol rev

32 hygromycin B consistent with metal-catalyzed hydrogen atom abstraction from substrate.

33 Hydrogen atom abstraction from the C5'-position of nucle

34 idence suggests DNA cleavage is initiated by hydrogen atom abstraction from the deoxyribose backbone.

35 hanisms as well as the proposal that initial hydrogen atom abstraction from the fatty acid is the fir

36 eration of the purine radical resulting from hydrogen atom abstraction from the N6-amine of 2'-deoxya

37 Formal hydrogen atom abstraction from the nitrogen-hydrogen bon

38 xperimental/theoretical study suggested that hydrogen atom abstraction in TAA by DPPH was located on

39 The reaction involves hydrogen atom abstraction in the transition state, and t

40 be intercepted at the 5-exo stage via either hydrogen atom abstraction or C-S bond scission or allowe

41 )-superoxo species are capable of performing hydrogen atom abstraction processes.

42 nism for the reaction that is initiated by a hydrogen atom abstraction reaction, which enables a keto

43 ; however, the reverse trend is obtained for hydrogen atom abstraction reactions.

44 tone or an alkene changes the chemistry from hydrogen atom abstraction to double bond addition.

45 At higher energies, spin-allowed hydrogen atom abstraction to form FeOH(+) predominates.

46 e decomposition via intra- or intermolecular hydrogen-atom abstraction (HAA) from an imido aryl ortho

47 ts on the thermodynamics and kinetics of its hydrogen-atom abstraction (HAT) reactions.

48 Hydrogen-atom abstraction affords an achiral benzylic ra

49 ever, that are associated with variations in hydrogen-atom abstraction barrier heights and tunneling

50 iates play a major role and are generated by hydrogen-atom abstraction from substrate C-H bonds or in

51 s the origin of the reactivity preference of hydrogen-atom abstraction over nucleophilic addition.

52 Manganese(III)-peroxo can react through hydrogen-atom abstraction reactions instead of the commo

53 that an oxo-Mn(V) species is responsible for hydrogen-atom abstraction.

54 ure-inspired pathway of high- and low-energy hydrogen atom abstractions.

55 er from TEMPOH, but is an intrinsically poor hydrogen atom abstractor (BDFE(OH) of 77.2 kcal/mol) bas

56 -electron oxidants and bases to generate net hydrogen atom acceptors.

57 Hydrogen atom adsorption is the major driving force for

58 The benzylic BDE(C-H)s and the hydrogen atom affinities (HA) of the tautomers have been

59 Removal of the hydrogen atoms also can convert electrically insulating

60 astic tunneling probe reveals the sharing of hydrogen atoms among multiple centers in intramolecular

61 the photoinduced isomer the distance between hydrogen atom and carbon atom to which it migrates in th

62 Hydrogen atom and proton transfers upon vertical photode

63 ple cubic like phosphorus layers capped with hydrogen atoms and layers of H2 molecules, are predicted

64 copy to directly observe surface adsorbates, hydrogen atoms and methyl groups, chemisorbed to the nan

65 ances to bonding contacts between the methyl hydrogen atoms and the ortho carbon atom C(o) well below

66 experiments show dramatic rate variations in hydrogen-atom and oxygen-atom transfer reactions, with f

67 allows the visualization of the positions of hydrogen atoms, and computation to characterize the cata

68 olving the transfer of a hydride ion or of a hydrogen atom are predicted to proceed through higher en

69 C5'-Hydrogen atoms are frequently abstracted during DNA oxid

70 ructure of H3 S, and suggest that the A site hydrogen atoms are most likely fluxional even at Tc .

71 functional theory calculations indicate that hydrogen atoms are present in LnBCO as bound to oxygen f

72 If the hydrogen atoms are treated as classical particles, then

73 cron (Bt) catalyzes abstraction of the pro-S hydrogen atom, as evidenced by the transfer of deuterium

74 ly, when the nitrogen-atom substituent was a hydrogen atom, as in 2d, 4, and 6, the nitrogen atom was

75 00 K, and the resonance of the gamma-agostic hydrogen atom at delta ~ -7.4 is observed.

76 When the thioketone substrate has a hydrogen atom at the alpha position a peroxyvinylsulfeni

77 ,beta-unsaturated aldehyde, which contains a hydrogen atom at the gamma position, an amine-aldehyde-d

78 nol, products formed from abstraction of the hydrogen atoms at C-9 and C-14 (H-9 or H-14 mechanism) w

79 toms of the catalyst phosphate group and the hydrogen atoms at N and C2 of the substrate indole group

80 eveloped Rayleigh-based approach considering hydrogen atoms at reactive sites.

81 yadenosyl radical; this radical can abstract hydrogen atoms at unreactive positions, facilitating the

82 ylalanine, chlorine was found to replace one hydrogen atom attached to the aliphatic nitrogen; in the

83 zoic acid, chlorine was found to replace the hydrogen atoms attached to the aromatic rings.

84 predict the Volmer-Tafel mechanism in which hydrogen atoms bound to molybdenum and sulfur sites reco

85 the motions of the phosphorus atoms and the hydrogen atoms bound to them.

86 deuterium, while replacing the transferring hydrogen atom by a methyl group makes the substrate inac

87 fect for the replacement of the transferring hydrogen atom by deuterium, while replacing the transfer

88 s observed upon substituting the transferred hydrogen atoms by deuterium, indicating that the process

89 omb repulsion between the negatively charged hydrogen atoms capping the phosphorus layers.

90 ity phase boundaries provide a great deal of hydrogen atoms diffusion channels and nucleation sites o

91 olate along the Cl-Os-CPh axis of 2 with the hydrogen atom directed to the alkylidyne leads to alkyny

92 along the X-Os-CPh axis of 2 and 5 with the hydrogen atom directed to the halide gives the alkynyl-t

93 h pyrylium oxygen, while 3-OH group improved hydrogen atom donation because of the stabilization by a

94 The two-hydrogen atom donation process is frequently used to exp

95 was carried out in the presence of the good hydrogen atom donor alpha-tocopherol, the oxysterol prof

96 O)n shows that this reagent is a very strong hydrogen atom donor as well as an outer-sphere reductant

97 out to investigate how chloroform acts as a hydrogen atom donor in Barton reductive decarboxylations

98 The nature of the redox-active hydrogen atom donor is also consequential, with 4-methox

99 en generating deuterothiophenol in situ as a hydrogen atom donor.

100 catalyst in conjunction with a redox-active hydrogen atom donor.

101 idation with Mn(OAc)3 in the presence of the hydrogen-atom donor 4-tert-butylcatechol.

102 dinium tetrafluoroborate and thiophenol as a hydrogen-atom donor furnished the nitrogen-containing he

103 ontrol in the presence of multiple potential hydrogen atom donors and acceptors.

104 rdinate ((Ar) L)Fe(kappa(2) -N,O-AZADO) with hydrogen atom donors yields ferric hydroxide ((Ar) L)Fe(

105 onverted back to Trp by suitable electron or hydrogen atom donors.

106 titatively determine the surface coverage of hydrogen atoms during nanowire growth by comparing nu(Ge

107 Unlike the ubiquitous hydrogen atom, fluorine is nearly absent in biological s

108 tical studies favor a pro-S abstraction of a hydrogen atom followed by the rebinding of an OH group.

109 xyadenosyl radical-mediated abstraction of a hydrogen atom from a solvent-exchangeable position as a

110 These oxidants abstract a hydrogen atom from a substrate C-H bond to generate an a

111 lytic mechanism begins with abstraction of a hydrogen atom from C-4 (or possibly C-3) initiating the

112 hus directing it to exclusively abstract the hydrogen atom from Fe-OH, thereby forming Cpd I, while p

113 itiates the catalytic cycle by abstracting a hydrogen atom from substrate.

114 ts that produce DSBs by abstracting a single hydrogen atom from the biopolymer.

115 CdSe QD plays a key role by abstracting the hydrogen atom from the C-H bond of the alcohol (R(1) CH(

116 ntal step(s) of initial transfer of a formal hydrogen atom from the SmI2-water reagent system to prod

117 the next round of reaction by abstracting a hydrogen atom from the substrate.

118 nitrene moiety to phosphines and abstract a hydrogen atom from weak C-H bonds, leading to the format

119 e (S = 1) intermediate initially abstracts a hydrogen atom from, or adds nitrene to, C-H and C horizo

120 able of the concerted removal of two vicinal hydrogen atoms from a hydrocarbon.

121 nts activate this cluster for abstraction of hydrogen atoms from an additional equivalent of PhNHNHPh

122 5'-deoxyadenosyl 5'-radicals, which abstract hydrogen atoms from C6 and C8 of the substrate.

123 id alteration, the mere removal of a pair of hydrogen atoms from juxtaposed cysteine residues, contra

124 fler-Freytag reaction-amidyl radicals remove hydrogen atoms from unactivated aliphatic C-H bonds.

125 This residue then abstracts a net hydrogen atom (H(*)) from propionate 2, followed by migr

126 The spectrum of the hydrogen atom has played a central part in fundamental p

127 more difficult because one of the methylene hydrogen atoms (Hb) has its BDE lowering within the seri

128 ents as well as partial H/D exchange for the hydrogen atom in the ortho position of pyridine and conc

129 ce for substrates that have the transferring hydrogen atoms in close proximity, such as ortho-tetrach

130 lity of visualizing the nuclear positions of hydrogen atoms in macromolecules.

131 us atoms in the equatorial positions and two hydrogen atoms in the axial positions (I4/mmm and 2FU-C2

132 s as reaction partners, including those with hydrogen atoms in the beta position.

133 xygen vacancy exchange diffusion with oxygen/hydrogen atoms in the LnBCO thin films is taking the lay

134 n which even the arrangement of the pyrrolic hydrogen atoms in the neighbouring molecule influences t

135 ents include variants in which the number of hydrogen atoms in the reactant pair and in the resulting

136 the distribution and dynamical transport of hydrogen atoms in the terrestrial atmosphere have long-s

137 The existence of hot hydrogen atoms in the upper thermosphere, which is the k

138 The hydrogen atoms in these clusters can be replaced by conv

139 d in these experiments showed that the pro-R hydrogen atom is abstracted from C-7' of undecylprodigio

140 The hydrogen atom is considered to be an ideal coupling hand

141 concomitant with the transfer of the second hydrogen atom, is the rate-limiting step, with a compute

142 onclude that hydroxyl radical abstracts a 5'-hydrogen atom, leading to RNA strand cleavage.

143 ts, is developed for hydrogen and common non-hydrogen atoms (Li, B, C, N, O, F, Si, P, S, Cl, Se, Br,

144 ty contrasts with the typical description of hydrogen atom-like states (S, P, etc.) in the conduction

145 t as a catalyst for the recombination of the hydrogen atoms made via the reduction of protons on the

146 er isomerizes to its cis-form or undergoes a hydrogen atom migration to form H2CCBS.

147 At lower pressures, the hydrogen atoms move to an off-centre position, forming a

148 shown here to demonstrate that the 6'-pro-R-hydrogen atom of GenX2 is stereoselectively abstracted b

149 rogen-bonding interaction formed between the hydrogen atom of the alpha-methylbenzylamine and the car

150 educed efficiency, suggesting that the pro-S hydrogen atom of the normal cysteinyl substrate is stere

151 and-ligand bifunctional mechanism, where two hydrogen atoms of CH3OH eliminate to the ligand's N and

152 Both beta- and alpha-hydrogen atoms of gold alkyl complexes are hydridic enou

153 not explicitly require chemical exchange of hydrogen atoms of parahydrogen and the substrate, the pa

154 Our work not only elucidates that ortho-hydrogen atoms of the pyrazine rings are preferentially

155 Helices are the "hydrogen atoms" of biomolecular complexity; the DNA/RNA

156 onded to a bent CO2 moiety on one side and a hydrogen atom on the other.

157 Starting with hydrogen atoms on adjacent sulfur atoms, the Volmer-Tafe

158 molecules due to positively charged terminal hydrogen atoms on the diamondoid interacting with the to

159 ound to a formate moiety on one side and two hydrogen atoms on the other.

160 involving reversible storage and release of hydrogen atoms on the Ru/C12A7:e(-) surface is proposed

161 ation approach utilizing a new basis set for hydrogen atoms optimized in conjunction with (i) inexpen

162 Compound I can either (i) abstract an O-H hydrogen atom or (ii) be attacked by a nucleophilic hydr

163 ters investigated reveals the preference for hydrogen atom or proton abstraction in photoreactions an

164 y, followed by a sequential abstraction of a hydrogen atom or proton-coupled electron transfer.

165 Quantum tunneling of hydrogen atoms (or protons) plays a crucial role in many

166 unction by cycling between GTP and GDP, with hydrogen atoms playing an important role in the GTP hydr

167 uctures (0.9 A resolution or better) and the hydrogen atom positions in these structures were determi

168 eory calculations, we have demonstrated that hydrogen atoms preferentially occupy substitutional posi

169 The hydrogen atom reactivity difference between the trinucle

170 f the double bond's pi electrons followed by hydrogen atom rearrangement.

171 ent protein family, showed a distribution of hydrogen atoms revealing protonation of the chromophore

172 is-HCCHBS intermediate either isomerizes via hydrogen atom shift from the carbon to the boron atom, l

173 mation and subsequent trapping with either a hydrogen atom source (PhSiH3 ) or an electron-deficient

174 orocarbinyl radical, reduction of which by a hydrogen atom source gives the alkyl chloride product.

175 lectron reductant, flavin semiquinone as the hydrogen atom source, and the enzyme as the source of ch

176 ic phase of LaH10 having cages of thirty-two hydrogen atoms surrounding each La atom.

177 Here we report the existence of non-thermal hydrogen atoms that are much hotter than the ambient oxy

178 (i) it is the carbinol C-H and adjacent O-H hydrogen atoms that are transferred during this process

179 ydroxide minerals often possess out-of-plane hydrogen atoms that form hydrogen bonding networks which

180 c process in which an alkene with an allylic hydrogen atom (the ene donor) reacts with a second unsat

181 chain polymers with multiple substituents of hydrogen atoms through atomic mass modification.

182 ch are initiated by the formal addition of a hydrogen atom to a C[double bond, length as m-dash]C dou

183 rnithine N(5) atom, it rotates and donates a hydrogen atom to form the C(4a)-hydroxyflavin.

184 decay suggests that it abstracts a substrate hydrogen atom to initiate fatty acid decarboxylation.

185 en to hydrogen bond distance positioning the hydrogen atom towards the flavin N5 reactive center.

186 y 150, associated with an intramolecular 1,5-hydrogen atom transfer (1,5-HAT) in the decay of a PEGyl

187 sition of the radical via intramolecular 1,5-hydrogen atom transfer (1,5-HAT) that was observed in it

188 iabatic reactions, which are associated with hydrogen atom transfer (HAT) and electron-proton transfe

189 ates selective C-H functionalization via 1,5-hydrogen atom transfer (HAT) and enables net incorporati

190 rough the combination of photoredox-mediated hydrogen atom transfer (HAT) and nickel catalysis, we ha

191 We found that second hydrogen atom transfer (HAT) and second sequential proto

192 Despite advances in hydrogen atom transfer (HAT) catalysis, there are curren

193 quinolinium, and isoquinolinium salts under hydrogen atom transfer (HAT) conditions, and an expanded

194 ic O-H of 1 and 2 from attack by CumO(*) and hydrogen atom transfer (HAT) exclusively occurs from the

195 Absolute rate constants for hydrogen atom transfer (HAT) from cycloalkanes and decal

196 Here we show that in hydrogen atom transfer (HAT) from the aliphatic C-H bond

197 ysis study on the role of solvent effects on hydrogen atom transfer (HAT) from the C-H bonds of N,N-d

198 Absolute rate constants for hydrogen atom transfer (HAT) from the C-H bonds of N-Boc

199 magnitude decrease in the rate constant for hydrogen atom transfer (HAT) from the C-H bonds of these

200 Subsequent hydrogen atom transfer (HAT) from the hydroxy group of t

201 lace through an apparent initial outersphere hydrogen atom transfer (HAT) from the Ni(II)-S(H(+))-Cys

202 ing scission experiments are consistent with hydrogen atom transfer (HAT) generation of a carbon-cent

203 the catalytic activity of the photoredox and hydrogen atom transfer (HAT) manifolds.

204 indicates that these reactions proceed by a hydrogen atom transfer (HAT) mechanism where the N-oxyl

205 bond dissociation enthalpy (BDE2) related to hydrogen atom transfer (HAT) mechanism, and the second e

206 m in the substrate to accelerate the desired hydrogen atom transfer (HAT) over competing pathways.

207 and gamma-CDs favors the intramolecular 1,8-hydrogen atom transfer (HAT) promoted by the 6(I)-O-yl r

208 effect of trifluoroacetic acid (TFA) on the hydrogen atom transfer (HAT) reactions from 1,n-alkanedi

209 in regioselectivity has been observed in the hydrogen atom transfer (HAT) reactions from 4-alkyl-N,N-

210 A time-resolved kinetic study of the hydrogen atom transfer (HAT) reactions from a series of

211 A kinetic study of the hydrogen atom transfer (HAT) reactions from a series of

212 A kinetic study of the hydrogen atom transfer (HAT) reactions from a series of

213 A kinetic study on the hydrogen atom transfer (HAT) reactions from the aliphati

214 standing chemical reactivity in general, and hydrogen atom transfer (HAT) reactivity in particular.

215 l radicals, making this a useful reagent for hydrogen atom transfer (HAT) studies.

216 trast with the usual reactivity of TEMPOH by hydrogen atom transfer (HAT) to a single e(-)/H(+) accep

217 ito cycloaromatization (M-S), intramolecular hydrogen atom transfer (HAT), and recombination of the r

218 t of (tpfc)Mn(V)(O) in three reaction types: hydrogen atom transfer (HAT), electron transfer (ET), an

219 which the aryl radical translocates via 1,5-hydrogen atom transfer (HAT), forming a tertiary alkyl c

220 ynamic and mechanistic investigations of the hydrogen atom transfer (HAT), radical adduct formation (

221 s rapidly with a panel of substrates via C-H hydrogen atom transfer (HAT), reducing 1 to [(PyPz)Fe(II

222 s and trimers of PCs was studied through the hydrogen atom transfer (HAT), sequential proton-loss ele

223 a variety of widely available ethers through hydrogen atom transfer (HAT), were coupled with a range

224 cate a mechanism that involves rate-limiting hydrogen atom transfer (HAT).

225 we present a direct observation of a double hydrogen atom transfer (tautomerization) within a single

226 desaturase systems proceed through stepwise hydrogen atom transfer at physiological temperature; how

227 rategy, we herein report photoredox-mediated hydrogen atom transfer catalysis for the selective activ

228 via the successful merger of photoredox and hydrogen atom transfer catalysis.

229 ynergistic merger of photoredox, nickel, and hydrogen atom transfer catalysis.

230 ments rule out the alternative hypothesis of hydrogen atom transfer from a redox-active beta-diketona

231 that benzoyl-CoA reduction is initiated by a hydrogen atom transfer from a W(IV) species with an aqua

232 A kinetic study of the hydrogen atom transfer from activated phenols (2,6-dimet

233 The efficiency and selectivity of hydrogen atom transfer from organic molecules are often

234 radicals occurs via a solvent proton-coupled hydrogen atom transfer from the substrate that has not b

235 est that this reaction is made possible by a hydrogen atom transfer from water that generates a Pd-hy

236 For hydrogen atom transfer from xanthene to (eta(5)-(i)Pr4C5

237 pectroscopic measurements revealed efficient hydrogen atom transfer from xanthene, 9,10-dihydroanthra

238 Hydrogen atom transfer is central to many important radi

239 ed that from the thermodynamic point of view hydrogen atom transfer is the preferred mechanism in the

240 bonds in the substrates was indicative of a hydrogen atom transfer mechanism.

241 ation of alcohols with methyl acrylate via a hydrogen atom transfer mechanism.

242 Notably, the rate for delta-hydrogen atom transfer of 1a (2.7 x 10(7) s(-1)) in the

243 ctivity is controlled by the predominant 1,5-hydrogen atom transfer of an amidyl radical generated in

244 rogenation is consistent with reduction by a hydrogen atom transfer pathway.

245 The formation of the THP involves a 1,5-hydrogen atom transfer process, leading to a diradical i

246 Through a kinetic study of the hydrogen atom transfer processes promoted by 1(*)-3(*) f

247 H bond dissocation free energies and related hydrogen atom transfer processes.

248 in we demonstrate that a photoredox-mediated hydrogen atom transfer protocol can efficiently and sele

249 he molecular motion, thereby suppressing the hydrogen atom transfer reaction to the photo-excited 24-

250 Hydrogen atom transfer reactions between the aldose and

251 s cluster with alkenes results in oxygen and hydrogen atom transfer reactions to form alcohol- and ke

252 igated the kinetics of novel carbon-to-metal hydrogen atom transfer reactions, in which homolytic cle

253 on experiments, kinetic isotope effects, and hydrogen atom transfer reagent substitution, and via the

254 Hydrogen atom transfer to 1 from beta-mercaptoethanol oc

255 alt bis(acetylacetonate) is shown to mediate hydrogen atom transfer to a broad range of functionalize

256 The transformation connects metal-mediated hydrogen atom transfer to alkenes and Minisci addition r

257 t provide a unique reagent system for formal hydrogen atom transfer to substrates.

258 TP to trap the GTP C3' radical, generated by hydrogen atom transfer to the 5'-deoxyadenosyl radical,

259 his study with those previously reported for hydrogen atom transfer to the cumylperoxyl radical indic

260 , as evidenced by an assay based on phenolic hydrogen atom transfer to the stable free radical DPPH.

261 kinetic isotope effects for carbon-to-metal hydrogen atom transfer were determined.

262 of the major antioxidative mechanisms: HAT (Hydrogen Atom Transfer), SPLET (Sequential Proton-Loss E

263 d, including photoinduced electron transfer, hydrogen atom transfer, and energy transfer.

264 ansition-metal-catalyzed C-H activation, 1,n-hydrogen atom transfer, and transition-metal-catalyzed c

265 The reaction begins with a hydrogen atom transfer, forming a peroxyl radical and a

266 c hypothesis characterized by intramolecular hydrogen atom transfer, radical fluorination, and ultima

267 monstrate that benzyl alcohol intercepts, by hydrogen atom transfer, the benzoylperoxy radicals that

268 ate and are consistent with rate-determining hydrogen atom transfer.

269 catalyst and promotes N-H bond formation via hydrogen atom transfer.

270 catalytic processes-photoredox, enamine and hydrogen-atom transfer (HAT) catalysis-enables an enanti

271 rived nitrogen-centered radicals mediate 1,6-hydrogen-atom transfer (HAT) processes to guide gamma-C(

272 -deficient alkenes can be terminated by both hydrogen-atom transfer and single-electron reduction fol

273 ation of two substrates through 1,6- and 1,7-hydrogen-atom transfer are demonstrated.

274 ia the combination of photoredox, nickel and hydrogen-atom transfer catalysis.

275 d N-terminal amino group in combination with hydrogen-atom transfer from the Calpha positions of the

276 tep in the reaction cycle and is followed by hydrogen-atom transfer from the CE1-H group of trimethyl

277 acting as a H-bonding acceptor to facilitate hydrogen-atom transfer in the ROS generation cycle.

278 The hydrogen-atom transfer mechanism for C-H iodination allo

279 DE approximately 100 kcal.mol(-1)) through a hydrogen-atom transfer mechanism, and the transformation

280 wed by 1) PMe3 attack on the nitride, 2) net hydrogen-atom transfer to form N-H bonds, or 3) C-H amin

281 uoromethane substrate (n = 1) undergoes both hydrogen-atom transfer, forming the copper hydroxide com

282 ilized to provide a lower-energy barrier for hydrogen-atom transfer.

283 inert C-H bonds through a strategy involving hydrogen-atom transfer.

284 photoproduct G*C* that has undergone double hydrogen-atom transfer.

285 electron-deficient alkenes is terminated by hydrogen-atom transfer.

286 nprecedented (for hybrid Pd-radical species) hydrogen atom-transfer event.

287 A bimolecular pathway involving hydrogen-atom-transfer from a Cu(II)-alkoxide to a nitro

288 ers both a rationale for the relatively high hydrogen-atom-transfer reactivity of [Mn(IV)(O)(N4py)](2

289 are harmonized with a thermodynamic model of hydrogen-atom-transfer reactivity, which predicts a corr

290 )E excited state predicted to be involved in hydrogen-atom-transfer reactivity.

291 netic coupling of the Co-C bond cleavage and hydrogen-atom-transfer steps at ambient temperatures has

292 The hydrogen atom transfers from the CH3 to CN along the CHN

293 s is the first spectroscopic confirmation of hydrogen atom tunneling governing 1,2-H-shift reactions

294 conditions, and provides clear evidence for hydrogen atom tunneling in the H-isotopologue.

295 cays to the lower-energy trans conformer via hydrogen-atom tunneling through the torsional barrier, w

296 he Bond Dissociation Energies (BDEs) of each hydrogen atom type in the CB series, providing an explan

297 bonds are modeled in the absence of explicit hydrogen atoms, via a three-body term that favors tetrah

298 (resolution </= 1.8 A) and the positions of hydrogen atoms were generated using a computational meth

299 Alkyl Grignard reagents that contain beta-hydrogen atoms were used in a stereospecific nickel-cata

300 Strategic replacement of one or more hydrogen atoms with fluorine atom(s) is a common tactic