ライフサイエンスコーパス: benzoquinone

1 n that formed nonadsorbing products (i.e., p-benzoquinone).

2 n reaction (DDQ=2,3-dichloro-5,6-dicyano-1,4-benzoquinone).

3 Bu3SnD, and pyridine.BD3 with 2,5-dichloro-p-benzoquinone.

4 an enzymatic reaction to proceed, generating benzoquinone.

5 ool using 5-dibromo-6-isopropyl-3-methyl-1,4-benzoquinone.

6 und to be efficient for the C-H arylation of benzoquinone.

7 2,4,6-tribromophenol to form 2,6-dibromo-1,4-benzoquinone.

8 ive than TCO in the cycloaddition with ortho-benzoquinone.

9 oxidizes the latter to 5-chloro-2-hydroxy-p-benzoquinone.

10 limination and reoxidation of palladium with benzoquinone.

11 hol, hydroquinone, 1,2,4-benzenetriol, and p-benzoquinone.

12 duction of the hypothetical intermediate 1,4-benzoquinone.

13 nsitivity ( approximately 50% resistance) to benzoquinone.

14 tetrazine, a cyclopentadienone, and an ortho-benzoquinone.

15 ized by simply increasing the equivalents of benzoquinone.

16 tion of conjugated ketene silyl acetals with benzoquinone.

17 nthesized a series of 6-aryl-2,3-dihydro-1,4-benzoquinones.

18 oduce corresponding (1,3-dioxolane-4-yl)-1,4-benzoquinones.

19 nols, and mixed chlorofluorobenzenes to form benzoquinones.

20 ed with increasing reduction potentials of p-benzoquinones.

21 yl functionality of in situ generated masked benzoquinones.

22 lating quinones, including unsubstituted 1,4-benzoquinone (1,4-BzQ) and partially substituted vitamin

23 tion of the explosive 2,3,5,6-tetraazido-1,4-benzoquinone, 14, produced by N3--induced hydrolysis of

24 )benzoquinone (DMDBBQ), and 2,6-dibromo-(1,4)benzoquinone (2,6-DBBQ) in some swimming pools at concen

25 10 swimming pools and found 2,6-dichloro-1,4-benzoquinone (2,6-DCBQ) in all the pools at concentratio

26 anthraquinone-2,7-disulfonic acid (AQDS)/1,2-benzoquinone-3,5-disulfonic acid (BQDS) RFBs.

27 de DBMIB (2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone), a well-known inhibitor of photosynthetic

28 sitive to 2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone, a cytochrome b6f complex inhibitor.

29 Here, we screened an aziridinyl 1,4-benzoquinone (ABQ) library against the causative agents

30 Solution-phase interaction of the p-benzoquinone acceptors with Cl(-), Br(-), or I(-) donors

31 For 2,3-diamino-1,4-benzoquinone, adiabatic E(T1) and E(S1) energies were cl

32 Ascorbate, glutathione, and 1,4-benzoquinone all reduce ferric TyrH, but much more slowl

33 A structurally close 1,4-benzoquinone analogue was also prepared.

34 dehalogenated by DHP to form 2,6-dibromo-1,4-benzoquinone and 2,6-dichloro-1,4-benzoquinone, respecti

35 re reported for two representative quinones, benzoquinone and 2-anthraquinonesulfonate, in buffered a

36 zoR2 confer resistance to catechol, MHQ, 1,4-benzoquinone and diamide.

37 The benzoquinone and hydroquinone redox couple was examined

38 The reactant and product, 1,4-benzoquinone and hydroquinone, are separated during the

39 ining phenolic or quinone group, such as 1,4-benzoquinone and hydroquinone, likely contributed to the

40 the generation of the reactive intermediates benzoquinone and N-acetyl-p-benzoquinone imine, which ca

41 rimethyl-6-(12-hydroxy-5-10-dodecadiynyl-1,4-benzoquinone and N-benzyl-N-hydroxy-5-phenylpentamide fu

42 Benzoquinone and naphthoquinone analogues of the Ape1-in

43 lylation of unsubstituted or monosubstituted benzoquinone and naphthoquinone substrates.

44 certed electron-proton transfer reduction of benzoquinone and oxidation of hydroquinone, respectively

45 Non-redox cycling quinones, including benzoquinone and phenylquinone, were competitive inhibit

46 The molecular role of water, benzoquinone and phosphoric acid has been probed by comp

47 quantities of undesirable oxidants, such as benzoquinone and silver(I) salts.

48 direct electron transfer reactions, while p-benzoquinone and terephthalic acid are not.

49 istration of N-acetyl-p-benzoquinoneimine, p-benzoquinone and the electrophilic TRPA1 activator cinna

50 At the same time, when 1,2-benzoquinone and ubiquinone are adsorbed on the electrod

51 quinone reductase activity with menadione or benzoquinone and weak activity with cytochrome c, molecu

52 ogenic glycosides, benzoic acid derivatives, benzoquinones and naphthoquinones are sometimes found in

53 ation with DDQ (2,3-dichloro-5,6-dicyano-1,4-benzoquinone) and alumina column chromatographic purific

54 thoxy-3-[(Z,Z)-8',11',14'-pentadecatriene]-p-benzoquinone) and its analogs.

55 an analyte concentration (e.g., 0.1-2.5 mM p-benzoquinone) and with an analyte feeding rate (i.e., a

56 otodeprotection process by the presence of p-benzoquinone, and absence of a labeled carbonyl final pr

57 g radicals ArO(*) and TEMPO, hydroquinone to benzoquinone, and dihydroanthracene to anthracene.

58 two negatively charged species, tetraiodo-p-benzoquinone anion radicals (I(4) Q(-.) ) and iodide ani

59 tegy to halt neurodegenerative diseases, and benzoquinone ansamycin (BQA) Hsp90 inhibitors such as ge

60 The increased duration of benzoquinone ansamycin exposure showed increased potency

61 The benzoquinone ansamycin geldanamycin and its derivatives

62 ective describes the influential role of the benzoquinone ansamycin geldanamycin and the resorcylic a

63 The benzoquinone ansamycins (BQAs) are a valuable class of a

64 olism of trans- and cis-amide isomers of the benzoquinone ansamycins and their mechanism of Hsp90 inh

65 which trans- rather than cis-amide forms of benzoquinone ansamycins are metabolized by NQO1 to hydro

66 Much attention is focused on the benzoquinone ansamycins as anticancer agents, with sever

67 es show that the reduction of this series of benzoquinone ansamycins by NQO1 generates the correspond

68 The reduction of these benzoquinone ansamycins by recombinant human NQO1 to the

69 o growth inhibition after treatment with the benzoquinone ansamycins compared with the MDA468 cells;

70 trans- but not the cis-amide isomers of the benzoquinone ansamycins could be accommodated by the NQO

71 The trans-cis isomerization of the benzoquinone ansamycins in Hsp90 inhibition has been dis

72 The benzoquinone ansamycins inhibit the ATPase activity of t

73 both the trans- and cis-amide isomers of the benzoquinone ansamycins into the open Hsp90 structure.

74 ition of purified human Hsp90 by a series of benzoquinone ansamycins was examined in the presence and

75 e report an extensive study with a series of benzoquinone ansamycins, which includes gel-danamycin, 1

76 We describe the preparation of potent non-benzoquinone ansamycins.

77 ion energies compared with the corresponding benzoquinone ansamycins.

78 Macrocyclic metal complexes and p-benzoquinones are commonly used as co-catalytic redox me

79 ation of amyl alcohol to pentanal; using 1,4-benzoquinone as a cocatalyst, the conversion was faster.

80 zyme microassay for glucose oxidase with 1,4-benzoquinone as an acceptor of electrons.

81 henols using [PdCl2(CH3CN)2] as catalyst and benzoquinone as an oxidant.

82 h the enzymatic oxidation of lactose using p-benzoquinone as electron acceptor and the electrochemica

83 eriments using stoichiometric amounts of 1,4-benzoquinone as oxidant.

84 Parasitic helminths use two benzoquinones as electron carriers in the electron trans

85 sms of p-nitrophenol, p-methoxyphenol, and p-benzoquinone at a porous Ti4O7 reactive electrochemical

86 ules out dimerization with a series of alkyl-benzoquinones because the anomalous features get larger

87 For example, 2,6-di-tert-butyl-p-benzoquinone (BHT-Q) can cause DNA damage at low concent

88 The benzoquinone binds within 4.0 A of the flavin si face, c

89 cene (An) donor to one or two equivalent 1,4-benzoquinone (BQ) acceptors.

90 of H2Q and the one-electron reduction of 1,4-benzoquinone (BQ) also reacts rapidly with Cu(II) and Cu

91 2, using [Pd(OAc)(2)](3) as the precatalyst, benzoquinone (BQ) as the stoichiometric oxidant, and a m

92 yields than systems employing stoichiometric benzoquinone (BQ) as the terminal oxidant.

93 direct Pd-catalyzed C-H functionalization of benzoquinone (BQ) can be controlled to give either mono-

94 The inclusion of benzoquinone (BQ) equidistant between the TiO2 and CdS t

95 e involvement of two mechanisms by which 1,4-benzoquinone (BQ) induces the decay of the excited state

96 ges of ferrocenemethanol (FcMeOH) oxidation, benzoquinone (BQ) reduction, and the formic acid oxidati

97 th respect to a small-molecule photooxidant, benzoquinone (BQ), because less dense organic adlayers a

98 G mixture via a 1,4-addition reaction with p-benzoquinone (BQ), followed by enzymatic kinetic measure

99 droquinone (HQ) and its oxidized counterpart benzoquinone (BQ).

100 ation to the corresponding electrophilic 1,4-benzoquinones (BQ).

101 nsation of butanedione into 4,5-dimethyl-1,2-benzoquinone but also its conversion into 4,5-dimethyl-1

102 inhibitor 2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone but this induction requires the presence of

103 ss-resistance was found with other ansamycin benzoquinones but not with the structurally unrelated HS

104 tabolites N-acetyl-p-benzoquinoneimine and p-benzoquinone, but not acetaminophen itself, activate mou

105 Hydroquinone is oxidized into benzoquinone by the HRP/H2O2 catalytic system.

106 col for the synthesis of protected amino-1,4-benzoquinones by oxidation of the corresponding 2,5-dime

107 Molecular oxygen and 1,4-benzoquinone can serve as electron acceptors during the

108 ansformation of p-nitrophenol to hydroxy-1,4-benzoquinone, catalyzed by NpdA2.

109 yridones, by utilizing 2,3,5,6-tetrachloro-p-benzoquinone (chloranil) as an oxidizing agent.

110 tion product, 2,5-dichloro-3,6-dihydroxy-1,4-benzoquinone (chloranilic acid).

111 hod is developed for in situ generation of a benzoquinone chromophore in the dyad using an iso-butyry

112 ate O2 reduction and generate the reactive p-benzoquinone co-catalyst.

113 imethoxy-5-methyl-6-(3-methyl-2-butenyl)-1,4-benzoquinone (coenzyme Q1) as a surrogate for coenzyme Q

114 The isoprenoid benzoquinone conjugates plastoquinone and ubiquinone wer

115 gment found in ubiquinone, 2,3-dimethoxy-1,4-benzoquinone, coupled to a boron-dipyrromethene (BODIPY)

116 uction of the additive 2,5-di-tert-butyl-1,4-benzoquinone (DBBQ) promotes solution phase formation of

117 BAA), bromoacetonitrile (BAN), 2,6-dibromo-p-benzoquinone (DBBQ), bromoacetamide (BAM), tribromoaceta

118 4-benzoquinone (DCMBQ), and 2,6-dichloro-1,4-benzoquinone (DBBQ), were treated using a modified bench

119 ,4-benzoquinone (DCMBQ), and 2,6-dibromo-1,4-benzoquinone (DBBQ).

120 (-), Br(-), or I(-)), while dibromo-dimethyl-benzoquinone (DBDMBQ) showed only the transition of M(-*

121 erivative 2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone (DBMIB), a known inhibitor of the bc1 and b

122 ne analog 2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone (DBMIB), and the oxidized form of DBMIB, bu

123 ne analog 2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone (DBMIB).

124 mples containing four HBQs, 2,6-dichloro-1,4-benzoquinone (DCBQ), 2,3,6-trichloro-1,4-benzoquinone (T

125 on potential (FP) tests for 2,6-dichloro-1,4-benzoquinone (DCBQ), 2,3,6-trichloro-1,4-benzoquinone (T

126 r halobenzoquinones (HBQs), 2,6-dichloro-1,4-benzoquinone (DCBQ), 2,6-dichloro-3-methyl-1,4-benzoquin

127 nzoquinone (DCBQ), 2,6-dichloro-3-methyl-1,4-benzoquinone (DCMBQ), 2,3,6-trichloro-1,4-benzoquinone (

128 , such as TriCBQ, 2,6-dichloro-3-methyl-(1,4)benzoquinone (DCMBQ), and 2,3,5,6-tetrabromo-(1,4)benzoq

129 nzoquinone (TCBQ), 2,6-dichloro-3-methyl-1,4-benzoquinone (DCMBQ), and 2,6-dibromo-1,4-benzoquinone (

130 nzoquinone (TCBQ), 2,6-dichloro-3-methyl-1,4-benzoquinone (DCMBQ), and 2,6-dichloro-1,4-benzoquinone

131 combination of 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and beta-pinene permits the removal o

132 e abstractions by 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) from 13 C-H hydride donors (acyclic 1

133 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) is a highly effective reagent for pro

134 ct quickly with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) to form persistent aromatic oxocarben

135 Reactions of 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) with silyl enol ethers, silyl ketene

136 none (RH1) is a novel antitumor diaziridinyl benzoquinone derivative designed to be bioactivated by t

137 Two 1,4-benzoquinone derivatives, found in the venom of the scor

138 After 4-methyl-1,2-benzoquinone derivatization, UHPLC-Q-ToF MS analyses spe

139 eaction, as two of them, 2,5-dihydroxy-[1,4]-benzoquinone (DHBQ) and 1,4,5,8-naphthalenetetrone, are

140 2,5-Dihydroxy-1,4-benzoquinone (DHBQ) is one of the key chromophores forme

141 2,5-Dihydroxy-1,4-benzoquinone (DHBQ) is one of the key chromophores occur

142 st prevalent compounds were 2,6-di-t-butyl-p-benzoquinone, diphenylamine, 4,4'-di-t-octyl diphenylami

143 effect of different additives (including 1,4-benzoquinone, diphenylsulfoxide, tetramethylethylene, an

144 none (TriCBQ), 2,3-dibromo-5,6-dimethyl-(1,4)benzoquinone (DMDBBQ), and 2,6-dibromo-(1,4)benzoquinone

145 t increases except 2,3-dimethyl-6-phytyl-1,4-benzoquinone (DMPBQ) in vte1 and beta-tocopherol in Col.

146 thway intermediate 2,3-dimethyl-5-phytyl-1,4-benzoquinone (DMPBQ); and vte2, which lacks all tocopher

147 ols (p-X-DTBPs) afford 2,6-di-tert-butyl-1,4-benzoquinone (DTBQ) in up to 50% yields.

148 ly gave a monoalkylated 1,4-hydroquinone/1,4-benzoquinone electron donor-acceptor complex.

149 Use of 2,5-di-tert-butyl-p-benzoquinone enables efficient use of molecular oxygen a

150 sayed by the diffusion and photorelease of p-benzoquinone, evaluated in different solvents and temper

151 chlorobenzoic acid, terephthalic acid, and p-benzoquinone) for use in EAOPs.

152 he reduced hydroquinone form to the oxidized benzoquinone form by the delivery of an oxidant by DPN.

153 While the benzoquinone form is susceptible to nucleophilic attack

154 nucleophile, which will react only where the benzoquinone form persists on the surface.

155 tion of previously reported 4,5-dimethyl-1,2-benzoquinone from 2,3-butanedione/amino acid model syste

156 The synthesis of para-benzoquinones from acetylenic dienophiles, including ben

157 Reduction of benzoquinone gave rise to positive feedback between the

158 der adducts of cyclopentadiene and 2-allyl-p-benzoquinone, has been devised.

159 Diels-Alder adduct of cyclopentadiene and p-benzoquinone, has been devised.

160 Benzoquinone/hydroquinone redox interconversion by the r

161 verted to the reactive metabolite N-acetyl-p-benzoquinone-imide (NAPQI) (r= 0.739;P= 0.058).

162 r the synthesis of 1,4-benzoxazinones from o-benzoquinone imides and ketene enolates is reported.

163 hat the acetaminophen metabolite, N-acetyl-p-benzoquinone imine (NAPQI), covalently binds to the acti

164 e APAP to the reactive metabolite N-acetyl-p-benzoquinone imine (NAPQI).

165 o-electron process where 4-AP is oxidized to benzoquinone imine and O2 is reduced to H2O2.

166 The reactive metabolite N-acetyl-p-benzoquinone imine has long been proven to be responsibl

167 enging of the reactive metabolite N-acetyl-p-benzoquinone imine, protective mechanisms at later times

168 ve intermediates benzoquinone and N-acetyl-p-benzoquinone imine, which can subsequently react with nu

169 acetaminophen to highly reactive N-acetyl-p-benzoquinone imine.

170 y convert 1 equiv of TCP to 2,6-dichloro-1,4-benzoquinone, implicating the role of multiple ferryl [F

171 henol (TCP) is converted to 2,6-dichloro-1,4-benzoquinone in a H2O2-dependent process.

172 The Diels-Alder reaction between 5 and p-benzoquinone in boiling glacial acetic acid yields an un

173 trimethylphenyl)phosphine with a substituted benzoquinone in the presence of a chiral phosphapalladac

174 tly, this mechanism explains the key role of benzoquinone in these transformations; in addition, it p

175 ze the oxidation of various hydroquinones to benzoquinones in the presence of t-BuOOH.

176 errocene, DMFc is decamethylferrocene, BQ is benzoquinone) in CH2Cl2.

177 ing hydroxy-1,4-benzoquinone or 1,2- and 1,4-benzoquinone intermediates, respectively.

178 -sGDH anodes in the presence of 1,2- and 1,4-benzoquinones introduced in the solution is due to the s

179 oxidation of N-protected allylic amines with benzoquinone is achieved in tBuOH under ambient conditio

180 ncentration (MIC) = 4 ug/mL], while the blue benzoquinone is active against Mycobacterium tuberculosi

181 It was also hypothesized that when 1,4-benzoquinone is adsorbed on a carbon support, it would p

182 reactivity of BCN compared to TCO with ortho-benzoquinone is due to secondary orbital interactions of

183 The red benzoquinone is effective against Staphylococcus aureus

184 The benzoquinone is electrochemically reduced, resulting in

185 In turn, benzoquinone is electroreduced into hydroquinone at the

186 nched allylic acetate trans-vinylsilane when benzoquinone is employed.

187 Hydroxy-1,4-benzoquinone is reduced to hydroxyquinol, which is degra

188 ting with ChOx in chitosan cross-linked with benzoquinone is simple, mechanically robust and provides

189 recent developments in the chemistry of 1,2-benzoquinones is presented in this tutorial review.

190 oxidative coupling of terminal alkynes with benzoquinones is reported.

191 ng of aromatic aldehydes (or alcohols) and p-benzoquinone led to an ester in the presence of the Cu(I

192 1,4-bis(4-bromophenyl)-1,3-butadiene and 1,4-benzoquinone led to the formation of a key intermediate

193 idging ligand 2,5-dichloro-3,6-dihydroxy-1,4-benzoquinone (LH2) with Fe(II) affords the solid (Me2NH2

194 2,5-di(2,6-dimethylanilino)-3,6-dibromo-1,4-benzoquinone (LH2) with Fe(II) in the presence of the ca

195 d), but a value of about 10 kJ mol(-1) for p-benzoquinone loss, which is consistent with formation of

196 A benzoquinone-masked primary amine is attached to this su

197 (NIPE) spectra of the radical anion of meta-benzoquinone (MBQ, m-OC6H4O) have been obtained at 20 K,

198 olymers (MHPs) obtained using simple twofold benzoquinones, MHP-P5Q is demonstrated to have a superio

199 molecular Diels-Alder reaction of a masked o-benzoquinone (MOB) 9 and an aqueous acid-catalyzed intra

200 rophenol (6M2NP), (4.4 +/- 0.3) % methyl-1,4-benzoquinone (MQUIN) and (77.2 +/- 6.3) % HNO3.

201 w report that BQ and 2-(N-acetylcystein-S-yl)benzoquinone (NAC-BQ) preferentially bind to solvent-exp

202 in terms of cytotoxic compounds including p-benzoquinone, nicotyrine, and flavoring agents (for exam

203 hetero-Diels-Alder reactions, tetrafluoro-o-benzoquinone (o-fluoranil) undergoes nucleophilic additi

204 Q) from TCBQ, and 3-hydroxyl-2,6-dibromo-1,4-benzoquinone (OH-DBBQ) from DBBQ.

205 re identified as 3-hydroxyl-2,6-dichloro-1,4-benzoquinone (OH-DCBQ) from DCBQ, 5-hydroxyl-2,6-dichlor

206 m DCBQ, 5-hydroxyl-2,6-dichloro-3-methyl-1,4-benzoquinone (OH-DCMBQ) from DCMBQ, 5-hydroxyl-2,3,6-tri

207 ) from DCMBQ, 5-hydroxyl-2,3,6-trichloro-1,4-benzoquinone (OH-TCBQ) from TCBQ, and 3-hydroxyl-2,6-dib

208 sformation products of HBQs as halo-hydroxyl-benzoquinones (OH-HBQs) in water under realistic conditi

209 the influence of two quinones (1,2- and 1,4-benzoquinone) on the operation and mechanism of electron

210 nooxygenation pathways involving hydroxy-1,4-benzoquinone or 1,2- and 1,4-benzoquinone intermediates,

211 monodeprotonated 2,5-diamino-3,6-dibromo-1,4-benzoquinone or 2,5-diamino-3,6-dichloro-1,4-benzoquinon

212 c catalytic turnover, even in the absence of benzoquinone or other co-catalysts.

213 The enzymes did not use GS-benzoquinones or other thiol-hydroquinones, for example,

214 ieved with either an oxidative quencher (1,4-benzoquinone) or a reductive quencher (N,N,N',N'-tetrame

215 with either DDQ (2,3-dichloro-5,6-dicyano-p-benzoquinone) or TBHP (tert-butyl hydroperoxide), along

216 The EGB, obtained when electrolysis of p-benzoquinone, or 1,4-naphthoquinone, is carried out at t

217 dihydroxybenzoquinone, dichloro-dihydroxy-p-benzoquinone, or benzene decorated by -COOH groups exhib

218 iisopropyl-6-oxoverdazyl) was synthesized by benzoquinone oxidation of the corresponding bis(tetrazan

219 milarly reduces Fe(III)~CO(2), and TEMPO and benzoquinone oxidize Fe(II)~CO(2)H to return to Fe(III)~

220 ction of organic compounds (p-nitrophenol, p-benzoquinone, p-methoxyphenol, and oxalic acid) and curr

221 er secondary (15)N-AKIEs associated with the benzoquinone pathway.

222 ctrophilic arthropod defensive compound para-benzoquinone (pBQN) on the human TRPA1 channel.

223 , 2-pyrrolidino-substituted 3,6-dimethyl-1,4-benzoquinones photocyclize to give benzoxazolines with q

224 om cubic to orthorhombic, while usage of 1,4-benzoquinone preserves the cubic phase of CsPbI3 QD.

225 benzoquinone or 2,5-diamino-3,6-dichloro-1,4-benzoquinone, proceeding through single-crystal-to-singl

226 matization with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone produced the functionalized [12]CPPs.

227 Oosporein, a red-pigmented benzoquinone, produced by many fungal insect pathogenic

228 he use of PhI(OAc)(2) as oxidant in place of benzoquinone provides the branched, cis-vinylsilane as t

229 9-one), generating reduced (L)Pd species and benzoquinones, provides the basis for determination of (

230 e presence of the aqueous hydroquinone (H2Q)/benzoquinone (Q) couple in a flowing suspension of carbo

231 formation by rapidly oxidizing Q(*-) to form benzoquinone (Q).

232 tive sacrificial reactions with 4-methyl-1,2-benzoquinone, quantifying products and ratios by HPLC-UV

233 adamantane, trimethylamine n-oxide, and 1,4-benzoquinone quantitatively producing 3 as the Pd-contai

234 onsider the intrinsic properties of the para-benzoquinone radical anion, which serves as the prototyp

235 droquinones can be spontaneously formed from benzoquinones reacting with reduced GSH via Michael addi

236 In contrast, the slower benzoquinone reaction forms ethane by a different pathwa

237 mediate, derived by tautomerization of a bis-benzoquinone, readily accessed from two simple phenolic

238 l theory (DFT) calculations indicated that p-benzoquinone removal was primarily due to reaction with

239 ia coli, contain two main types of quinones: benzoquinones, represented by ubiquinone (UQ) and naphth

240 ibromo-1,4-benzoquinone and 2,6-dichloro-1,4-benzoquinone, respectively.

241 lurea and 5-dibromo-6-isopropyl-3-methyl-1,4-benzoquinone resulted in a disturbance of Dd+Dt synthesi

242 -Diaziridinyl-3-(hydroxymethyl)-6-methyl-1,4-benzoquinone (RH1) is a novel antitumor diaziridinyl ben

243 active lipid composed of a fully substituted benzoquinone ring and a polyisoprenoid tail and is requi

244 e electron carriers formed of a redox active benzoquinone ring attached to a prenyl side chain.

245 is an aromatic ring precursor that forms the benzoquinone ring of Q and is used extensively to examin

246 ent biochemical evidence suggesting that the benzoquinone ring of ubiquinones in this parasite may be

247 ity of the ligand shell to alkyl-substituted benzoquinones (s-BQs), as measured by a decrease in the

248 The bactericidal effects of both benzoquinones show comparable activity to commercially a

249 es, producing phytotoxins such as the potent benzoquinone sorgoleone (2-hydroxy-5-methoxy-3-[(Z,Z)-8'

250 ies, producing phytotoxins such as the lipid benzoquinone sorgoleone, which likely accounts for many

251 OI or iodine incorporation into newly formed benzoquinone species arising from the oxidation of pheno

252 Here we demonstrate that several benzoquinones spontaneously reacted with GSH to form GS-

253 n-deficient reagent such as 2,6-dichloro-1,4-benzoquinone suppressed this isomerization in the case o

254 1,4-benzoquinone (DCBQ), 2,3,6-trichloro-1,4-benzoquinone (TCBQ), 2,6-dichloro-3-methyl-1,4-benzoquin

255 1,4-benzoquinone (DCBQ), 2,3,6-trichloro-1,4-benzoquinone (TCBQ), 2,6-dichloro-3-methyl-1,4-benzoquin

256 ,4-benzoquinone (DCMBQ), 2,3,6-trichloro-1,4-benzoquinone (TCBQ), and 2,6-dibromobenzoquinone (DBBQ),

257 e-based organic layers, with tetrachloro-1,2-benzoquinone (TCBQ).

258 facile two-step method using tetrachloro-1,4-benzoquinone (TCBQ, p-chloranil), accompanied by a two-s

259 quinone (DCMBQ), and 2,3,5,6-tetrabromo-(1,4)benzoquinone (TetraB-1,4-BQ).

260 , beta-dehydrogenated derivatives of nonyl-p-benzoquinones that originated by hydroxylation induced r

261 ed back to the formation of 4,5-dimethyl-1,2-benzoquinone through isotope labelling studies.

262 o undergoes cycloaddition with tetrachloro-o-benzoquinone to afford a Ge(IV) adduct.

263 follows: a Diels-Alder reaction of masked o-benzoquinone to assemble the functionalized bicyclo[2.2.

264 392 and Cys405 did not affect the ability of benzoquinone to block the N-terminal gate of topoisomera

265 n mechanism accounts for the ability of para-benzoquinone to capture and retain electrons.

266 of hydrazones in the presence of t-BuOLi and benzoquinone to form the corresponding branched dienes.

267 driven at the interface by the reduction of benzoquinone to hydroquinone and the resulting interfaci

268 t(4)N)(2) (4) reacts rapidly with TEMPO or p-benzoquinones to generate diferric and deprotonated [Fe(

269 enzymatic reactions led to the reduction of benzoquinones to hydroquinones with the concomitant oxid

270 We also identified 2,3,6-trichloro-(1,4)benzoquinone (TriCBQ), 2,3-dibromo-5,6-dimethyl-(1,4)ben

271 a Ca(2+) mitochondrial regulator similar to benzoquinone-ubiquinones like Ub0.

272 , Mn; H(2)L = 2,5-dichloro-3,6-dihydroxo-1,4-benzoquinone) undergo linker exchange upon exposure to a

273 lic primary amines and 2,6-di-tert-butyl-1,4-benzoquinone, undergo efficient allylation to afford a w

274 thylene-2,3-dihydrofuran with 2 equiv of 1,4-benzoquinone unexpectedly gave a monoalkylated 1,4-hydro

275 similar to ubiquinone (Q), a polyprenylated benzoquinone used in the aerobic respiratory chain.

276 iquinone (coenzyme Q or Q), a polyprenylated benzoquinone used in the aerobic respiratory chain.

277 oquinones back to hydroquinones and reducing benzoquinones via spontaneous formation of GS-hydroquino

278 Importantly, the blue benzoquinone was also effective in vivo with mouse model

279 (m)(NADH) was 19 +/- 1.7 microM and the K(m)(benzoquinone) was 37 +/- 3.6 microM.

280 m)(NADH) was 14 +/- 0.43 microM and the K(m)(benzoquinone) was 5.8 +/- 0.12 microM.

281 O.6DMF (LH2 = 2,5-dichloro-3,6-dihydroxo-1,4-benzoquinone) was previously shown to magnetically order

282 3-Amino-6-chloropyridazine and p-benzoquinone were responsible for the increased toxicity

283 ansfer reactions between halide anions and p-benzoquinones were established via UV-vis spectral and X

284 Benzoquinones were experimentally explored as mediators

285 quinone as the substrate 2,3-disubstituted p-benzoquinones were isolated.

286 ing materials the 2,3,5,6-tetrasubstituted p-benzoquinones were isolated.

287 Highly substituted p-benzoquinones were obtained in yields ranging from 39% t

288 almost all cases the 2,3,5-trisubstituted p-benzoquinones were obtained.

289 BQs were further modified to monohalogenated benzoquinones when the UV dose was higher than 200 mJ cm

290 Q are auto-oxidized to toxic ortho- and para-benzoquinones which act like diamide as thiol-reactive e

291 xidase uses the hydrogen peroxide to produce benzoquinone, which forms a red quinone imine dye by a s

292 richlorophenol (2,4,5-TCP) to 2,5-dichloro-p-benzoquinone, which is chemically reduced to 2,5-dichlor

293 aC-lithiated O-silyl ethyl pyruvate oxime to benzoquinone, which is followed by an oxa-Michael ring-c

294 t was replaced by 2,3-dichloro-5,6-dicyano-p-benzoquinone, which is frequently used at the oxidizing

295 Our findings suggest that hydroquinones and benzoquinones, which are interchangeable via redox equil

296 oheptene-1,2-diol, 4, from the reaction of o-benzoquinone with reduced elemental sulfur, H2Sx.

297 (-), Br(-), or I(-) anions, interaction of p-benzoquinones with F(-) anions led to the formation of s

298 icals and trihalide anions in solutions of p-benzoquinones with iodide or (for the strongest acceptor

299 oxygen oxidized to the corresponding nonyl-p-benzoquinones-yielding a complex mixture of potentially

300 first structurally rigid zinc phthalocyanine-benzoquinone (ZnPc-BQ) dyad as a model for photoinduced