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1 ehydrogenase proceed through a classic metal hydride.
2 reagents and initiators such as tributyltin hydride.
3 ism initiated by H* transfer from the nickel hydride.
4 d Mn species and generate an intermediate Mn hydride.
5 rmation of surface hydrogen on Pd instead of hydride.
6 que adducts, e.g., a dianionic p-block metal hydride.
7 Gold does not react with H(2) to form bulk hydrides.
8 de complexes are largely limited to bridging hydrides.
9 hat often require the use of hazardous metal hydrides.
10 stainable, recyclable, and metal-free organo-hydrides.
11 enoted E(4)(4H)) with two [Fe-H-Fe] bridging hydrides.
12 ation occurs by tautomerization of the metal hydride [1-MH](+) to a ligand protonated species [1-LH](
16 nderstanding of how oxygen reacts with metal-hydrides, a detailed mechanistic study of the reaction o
17 to the cis-1,2-mu-H-3-hydrotriboranes, while hydride abstraction affords cationic triboranes, which r
18 ization of saturated hydrocarbons upon APCI, hydride abstraction by carbocation reagent ions, is not
19 orresponding N-lithiated amines and a ketone hydride acceptor, undergo reactions with a range of orga
20 heir hydride transfer reactions with several hydride acceptors/donors in acetonitrile, were determine
21 nvolves the initial formation of an iron(II)-hydride active species, 1,2-insertion of propene, and ra
22 D-labelling experiments reveal the source of hydride added to the ring and show the reversible nature
23 ing migratory insertion, triggered by the Rh-hydride addition to the alkene, to the more substituted
27 to a very strong hydride ion acceptor with a hydride affinity of 205.4 kcal mol(-1), while possessing
29 nder ambient conditions to give the aluminum hydride {AlH(mu-H)Ar(iPr8)}(2), probably via a weakly bo
30 s to alkenes, boryl and silyl substitutions, hydride-allyl additions to alkenyl boronates, and additi
31 control the interconversion between a metal-hydride and a ligand-protonated congener using an exogen
32 terolytically cleaved to form a tungsten(II) hydride and a silylium ion, which is stabilized by one o
34 oxylation of a metal formate to form a metal hydride and CO(2), is important in both organic synthesi
37 thods for determining the hydricity of metal hydrides and formate at temperatures other than 298 K ar
39 c, recent developments highlight the role of hydrides and the privileged role for two irons of the tr
41 4H)((b)), with one bridging and one terminal hydride, and E(4)(4H)((c)), with one pair of anchor Fe s
42 imine, first order in the bimetallic (K-Mn) hydride, and independent in rate from the concentration
43 tacks, and the pai-facial selectivity of the hydride approach is primarily due to steric hindrance.
44 or role in the preference for the antifacial hydride approach, consistent with the Felkin-Anh model.
45 gen-hydrogen distances in conventional metal hydrides are around 2.1 angstrom under ambient condition
47 lysis further identifying one anchor of each hydride as a major recipient of electrons released upon
48 catalyst activates and orients the imine to hydride attack by hydrogen bonding to the PO or SO group
49 inium ions, the pai-facial preference of the hydride attack was found to be due to torsional steering
51 the reaction conditions were compatible with hydride, azide, and electron-rich aromatics as nucleophi
52 ate conditions to form a layered polyanionic hydride BaGa(2)H(2), effectively catalyzes the hydrogena
57 quired for heterolytic cleavage of the metal-hydride bond to release a free hydride ion, H(-), as det
58 rides that store the reducing equivalents in hydride bonds and reductively eliminate H(2) upon substr
61 The P-fluoro substituent is exchanged for hydride by treatment with DIBAL-H, generating hydridopho
62 tituted olefins by dual palladium and copper hydride catalysis as a convenient and general approach t
63 ride to produce free ammonia using a rhodium hydride catalyst that promotes H(2) activation and hydro
65 efficient enantio- and chemoselective copper hydride catalyzed semireduction of conjugated enynes to
66 ons results in the formation of multinuclear hydride clusters, which were characterized by a variety
67 y of the reaction of oxygen with the Ir(III) hydride complex ((dm)Phebox)Ir(OAc)(H) (1) in the presen
68 state of the catalyst is an iridium disilyl hydride complex (phenanthroline)Ir(SiMe(OTMS)(2))(2)(H)(
69 can further add H(2) to afford the methoxide hydride complex [K(2){[U(OSi(O (t)Bu)(3))(3)](2)(mu-OCH(
70 oscopic characterization of the dimeric iron hydride complex [Ph(2)B((t)BuIm)(2)FeH](2) reveals an un
75 er step to CO(2) from a singly reduced metal-hydride complex was observed with kinetic resolution.
76 bis-guanidinate zinc(II) alkyl, halide, and hydride complexes [LZnEt](2) (1), [LZnI](2) (2) and [LZn
78 well-defined examples of paramagnetic nickel hydride complexes are largely limited to bridging hydrid
81 (a)(LAC-MeCN)([MHL(n)](+)/ML(n)) of over 200 hydride complexes MHL(n) are used, along with their elec
83 igation, where we find that rhodium carbonyl hydride complexes on flat oxide surfaces such as CeO(2)(
84 in contrast to previous studies on isolable hydride complexes where this addition was reversible.
85 r (PCET) was studied in a series of tungsten hydride complexes with pendant pyridyl arms ([(PyCH(2)Cp
86 es, such as gold(III) alkene, alkyne, CO and hydride complexes, and important catalysis-relevant reac
87 rmodynamics of paramagnetic transition metal hydride complexes, especially of the abundant 3d metals,
88 is also compared to select transition metal hydride complexes, which emphasizes the strong electroni
91 hat generate localized hotspots for promoted hydride coupling and hydrogen desorption, the catalysts
92 repare polysubstituted pyrroles via a copper hydride (CuH)-catalyzed enyne-nitrile coupling reaction.
93 oduced the corresponding aldehyde and cobalt hydride, demonstrating the feasibility of elementary ste
94 educe trifluoroacetic acid, the resulting Ni hydrides (depending on the steric effects of porphyrin r
95 benzimidazole-based hydride donors rival the hydride-donating abilities of noble-metal-based hydrides
97 a good descriptor for both the stability and hydride-donating capability of the catalytic intermediat
99 f electrons on the substituting group of the hydride donor is a good descriptor for both the stabilit
100 ter CO(2) reduction, the benzimidazole-based hydride donor was quantitatively oxidized to its aromati
103 exist in classic metal hydrides reveal that hydride donors sufficiently hydridic to perform CO(2) re
104 vidence for not only the presence of encaged hydrides during ammonia synthesis but also the strong th
105 ce synthetic sequences characterized by high hydride economy, typically going in hand with excellent
107 analytical point-dipole Hamiltonian for the hydride electron-nuclear dipolar coupling to its "anchor
108 y insertion of the diene is followed by beta-hydride elimination and hydride reinsertion to give a 6-
109 pled product, and suppressing undesired beta-hydride elimination directly from the Pd(II)alkyl iodide
111 nols as the coupling partners selective beta-hydride elimination toward the alcohol was achieved.
112 e(2)NH.BH(3) supports a bond-metathesis/beta-hydride elimination, redox-neutral mechanism with a Ti(I
117 e surface-adsorbed hydrogen, rather than the hydride encaged in the C12A7 electride, plays a major ro
123 ced the benzimidazolium cation to its organo-hydride form in quantitative yield, demonstrating its po
125 ared with pure Pd hydride, the bimetallic Pd hydride formation occurs at more negative potentials for
126 (239)Pu, so our aim was to understand if the hydride formation rate can be constrained independently
127 engaged in key catalytic steps such as metal-hydride formation, hydride transfer to CO(2) to form the
130 ting from the reduced matrix interference by hydride generation and the unique catalysis/fluorescence
131 epared in Tris buffer (pH:7.2) for selective hydride generation and without on-line pre-reduction, iA
132 a the solid phase extraction followed by the hydride generation atomic absorption spectrometry (HG-AA
133 e determination in crude palm oil samples by hydride generation atomic fluorescence spectrometry and
136 y in a wet plasma mode without using neither hydride generation nor separation of Se, was developed.
137 escence assay for Se(IV) detection, in which hydride generation of Se(IV) was coupled with the fluore
138 waters, honey and rice prior to analysis by hydride generation-atomic absorption spectrometry (HG-AA
139 The total arsenic content was determined by Hydride Generation-Atomic Fluorescence Spectrometry (HG-
141 alents and an electrophile, in the form of a hydride (H(-) = 2e(-) + H(+)), promotes alkylidene forma
142 m precursors, with each alkane requiring one hydride (H(-)) and one proton (H(+)) equivalent and no a
146 Fe promoted reaction pathway support a metal hydride hydrogen atom transfer (MH-HAT) to generate a C-
148 utilization of materials as diverse as metal hydrides, hydroxides, or carbonates for thermochemical s
149 a)(MeCN)([MHL(n)](+)/[ML(n)) of paramagnetic hydrides in MeCN are estimated for the first time using
150 )(H)] intermediate, which performs selective hydride insertion into the beta-position of alpha,beta-u
152 ardtii (CrHydA1), we have discovered two new hydride intermediates and spectroscopic evidence for a b
154 inity of 324.6 kcal mol(-1) to a very strong hydride ion acceptor with a hydride affinity of 205.4 kc
156 niverse's first molecular bond in the helium hydride ion HeH(+) through radiative association with pr
157 ing the C4' atom in position for receiving a hydride ion on the opposite side of the sugar ring.
158 of the metal-hydride bond to release a free hydride ion, H(-), as determined through equilibrium mea
162 ays connecting the eta(2)-benzene and phenyl hydride isomers, due to the relatively flat energy lands
164 theory calculations of the benzene-to-phenyl hydride landscape suggest a single linear sequence for t
165 the P-C bond formation, the key role of the hydride ligand in 1 has been disclosed by both experimen
167 te increasing interaction between M' and the hydride ligand in the [Ru(PPh(3))(C(6)H(4)PPh(2))(2)H](-
169 (III)-H species is comparable to that of the hydride ligand proposed for the Ni-C hydrogenase interme
172 d analysis presented herein suggest that the hydride ligands in E(4)(4H) bridge isovalent (most proba
177 tions include a selective base- or ruthenium hydride-mediated isomerization/Claisen rearrangement cas
178 ion free energies BDFE(MH) of the unoxidized hydrides MHL(n) and the prediction of the electrochemica
179 H(2) evolution rendering the intermediate Mn hydride more stable; subsequent CO(2) insertion appears
181 ggests that alkene insertion into the cobalt hydride occurred in the presence of free carboxylic acid
182 D(2) molecule and the respective boranes and hydrides of the group 14 elements, in the presence of th
183 ed to validate the pK(a)(LAC-MeCN) values of hydrides of W(III), Mn(II), Fe(III), Ru(III), Co(II), an
184 those indicative for a HTa(4) CH(+) carbyne hydride one, as is unambiguously verified by studies emp
185 enaminones, which, in the presence of sodium hydride or cesium carbonate, underwent nucleophilic cycl
186 mperature conditions of the MTZ to form iron hydride or molecular hydrogen and silicate with less tha
190 is work investigated the reaction of uranium hydride powder with saturated water vapour at 25 degrees
195 nations of deuterated and proteated acid and hydride reagents, the deuterated positions on the cycloh
197 a weak Bronsted acid, to quinoline prior to hydride reduction was identified as the key to the lower
199 r rationalizing the stereoselectivity of the hydride reductions of cyclobutanones toward cyclobutanol
201 ent allylic oxidation and diastereoselective hydride reductions provided the hydroxy substituent at C
202 is followed by beta-hydride elimination and hydride reinsertion to give a 6-membered cobaltacycle th
203 ng relationships that exist in classic metal hydrides reveal that hydride donors sufficiently hydridi
204 CO(2) insertion into the cationic ruthenium hydride [Ru(tpy)bpy)H]PF(6) (tpy = 2,2':6',2"-terpyridin
205 he sequential photoelectrocyclization, [1,5]-hydride shift of conjugated bis-aryl cycloalkenone subst
207 quinoline-1-thiones proceeds through a [1,5]-hydride shift/6pai-electrocyclization cascade, followed
208 tions, a mechanism involving a concerted 1,4-hydride shift/electrocyclization process as the rate-det
209 c reductive elimination (re) of the E(4)(4H) hydrides showed that enzymatic re of E(4)(4H) hydride yi
210 rovided in catalytic amounts and serves as a hydride shuttle to connect two or more enzymatic redox e
211 led reduction of tertiary amides by a sodium hydride/sodium iodide composite, in situ treatment of th
212 a catalytic amount of the cofactor NADPH as hydride source as well as glucose as the reducing agent
213 s the catalyst, which, when activated with a hydride source such as sodium borohydride, cleanly and s
219 ve hydrogen atom transfer (HAT) from a metal-hydride species to an alkene to form a free radical, whi
220 rs through the formation of active manganese-hydride species via an insertion and bond metathesis typ
221 likely involve in situ formation of an iron-hydride species which promotes olefin isomerization thro
225 r remaining elusive for many years, terminal hydride states have now been identified in several nativ
227 either MCH(2) (+) carbene or HMCH(+) carbyne hydride structures, the observation of a H(2) MC(+) carb
229 ride-donating abilities of noble-metal-based hydrides such as [Ru(tpy)(bpy)H](+) and [Pt(depe)(2)H](+
231 tochemically transformed carbonaceous sulfur hydride system, starting from elemental precursors, with
232 ve suggested a new family of superconducting hydrides that possess a clathrate-like structure in whic
233 milar chemistry may be enabled by nickel(II) hydrides that store the reducing equivalents in hydride
235 are much smaller than those found in related hydrides, thereby violating the so-called Switendick cri
237 pha-FAD, we observed that NADH transferred a hydride to beta-FAD at a rate of 920 s(-1), yielding the
238 of an amine substrate through transfer of a hydride to the FAD cofactor, with differences observed i
239 drawback due to the employment of toxic tin hydrides to the point that "flight from the tyranny of t
242 cationic rhodium product resulting from the hydride transfer and enabled catalytic ammonia synthesis
245 es, and the properties that make them superb hydride transfer catalysts, followed by a critical exami
249 dimer for more electrophilic substrates, and hydride transfer from a transient Cu-H monomer for less
251 Kinetic hydricity represents the rate of hydride transfer from one species to another, as measure
253 ion, we propose that the new pathway entails hydride transfer from the substrate to Ni(4+) sites in N
254 ing of the cation into basic solutions or by hydride transfer from triethylsilane provides access to
255 none of the major mechanistic proposals for hydride transfer in formate dehydrogenase proceed throug
258 )La-OCHR(NR'(2))[HBpin] active catalyst, and hydride transfer is proposed to be ligand-centered.
260 these reactions typically proceed through a hydride transfer mechanism, we recently found that EREDs
262 ghtly (K(D) of ~2 mum) to AsFMO and that the hydride transfer occurs with pro-R stereospecificity.
264 ns that undergo intramolecular 1,3- and 1,4- hydride transfer processes as well as fragmentation.
266 The prevalence of transition metal-mediated hydride transfer reactions in chemical synthesis, cataly
267 mett correlations of several closely related hydride transfer reactions were constructed using the li
268 he oxidized forms MA(+) and DMA(+), in their hydride transfer reactions with several hydride acceptor
269 nd solvent effects on the H(2) splitting and hydride transfer steps are expected to be relevant to ma
270 o(H(2) )](1-) , is a competent precursor for hydride transfer to BEt(3) , establishing its remarkable
271 lytic steps such as metal-hydride formation, hydride transfer to CO(2) to form the bound formate inte
272 electron from molecular hydrogen, avoiding a hydride transfer to the undesired site and resulting in
273 ts the reductive coupling of acetonitrile by hydride transfer to yield [K(2){[U(OSi(O (t)Bu)(3))(3)](
275 ive and mediate a direct and reversible beta-hydride transfer, negating the necessity of a discrete i
278 features of the synthesis are a novel [1,4] hydride transfer/Mannich-type cyclisation to build ring
281 nate intermediate was characterized, and the hydride-transfer step to CO(2) from a singly reduced met
283 )-dependent enzymes from the luciferase-like hydride transferase protein superfamily in the biosynthe
284 highly specific ring formations, proton and hydride transfers, and methyl as well as methylene migra
285 lectron reduction, two coenzyme F(420)-based hydride transfers, and one coenzyme F(430)-based radical
288 turally identified "anchors" of one bridging hydride, two others with identified anchors of the secon
289 4 also reacts with H(2) to produce an imide hydride U(III)/U(IV) complex, [{((Me(3)Si)(2)N)(2)U(THF)
295 ne pair of anchor Fe supporting two bridging hydrides, were not beyond the uncertainties in the calcu
296 sts have exclusively relied on classic metal hydrides, where the proton and electrons originate from
297 ) by a recyclable benzimidazole-based organo-hydride, whose choice was guided by quantum chemical cal
298 implications for the design and creation of hydrides with additional properties and applications.
299 ydrides showed that enzymatic re of E(4)(4H) hydride yields an H(2)-bound complex (E(4)(H(2),2H)), in