ライフサイエンスコーパス: trifluoroacetic acid

1 nd H(2)O were measured on MOF-808-TFA (TFA = trifluoroacetic acid).

2 h formaldehyde catalyzed by a Bronsted acid (trifluoroacetic acid).

3 oxycarbonyl, cod = 1,5-cyclooctadiene, TFA = trifluoroacetic acid).

4 electrocatalyst for hydrogen evolution from trifluoroacetic acid.

5 n 500-fold enhancement upon protonation with trifluoroacetic acid.

6 water/acetonitrile gradient containing 0.1% trifluoroacetic acid.

7 28% (v/v) acetonitrile in 0.1% (v/v) aqueous trifluoroacetic acid.

8 could be cleaved from the solid support with trifluoroacetic acid.

9 onizing solvents such as trifluoroethanol or trifluoroacetic acid.

10 nthesized and subsequently deprotected using trifluoroacetic acid.

11 One of them is 0.5% n-octyl glucoside/0.5% trifluoroacetic acid.

12 F, and trifluoroethyl alcohol-BF3 but not in trifluoroacetic acid.

13 ve 7 and 12a/12b, which were dehydrated with trifluoroacetic acid.

14 m for cytochrome c in buffer containing 0.1% trifluoroacetic acid.

15 sassembly experiments with pyridine and with trifluoroacetic acid.

16 ular dichroism (CD) to be 38% helical in 30% trifluoroacetic acid.

17 a overpotential of 670 mV in the presence of trifluoroacetic acid.

18 Denatured AChE was eluted with 1% trifluoroacetic acid.

19 iocyanate (PITC), followed by treatment with trifluoroacetic acid.

20 nt coupling of primary amines, aldehydes and trifluoroacetic acid.

21 talysts for H2 production in the presence of trifluoroacetic acid.

22 o give unsymmetrical diaryl chalcogenides in trifluoroacetic acid.

23 ydroxyaryl)-1,4-quinones upon treatment with trifluoroacetic acid.

24 or at room temperature that was catalyzed by trifluoroacetic acid.

25 of diaryl dichalcogenide with persulfate in trifluoroacetic acid.

26 le as porogen with traces of acetic acid and trifluoroacetic acid.

27 d in situ from potassium hydrodifluoride and trifluoroacetic acid.

28 Z configuration (Z-H(+)) by the addition of trifluoroacetic acid.

29 the Z-H(+) configuration upon treatment with trifluoroacetic acid.

30 mobile phase consisting of acetonitrile and trifluoroacetic acid 0.025% (w/v).

31 alogues under mild acidic conditions such as trifluoroacetic acid (10-20%) or HCl (0.1-4.0 N) at room

32 The largest input was seen for trifluoroacetic acid (150 kg/year), perfluoropropanoic a

33 of rapeseed extracts with water/acetonitrile/trifluoroacetic acid (45/55/0.1% v/v) during 30 min yiel

34 ng others, perfluoropropionic acid (72% RU), trifluoroacetic acid (67%), and tetrafluoroborate (40%).

35 inorganic carbon, and smaller organic acids (trifluoroacetic acid, acetic acid, and formic acid) were

36 Treatment of 29 with trifluoroacetic acid afforded the tetracyclic lactam ske

37 -dibromodimethylhydantoin in the presence of trifluoroacetic acid afforded the titled compound, which

38 ione (MeTAD) with anisole in the presence of trifluoroacetic acid affords unexpected disubstituted ur

39 Treatment of purified oximes with aqueous trifluoroacetic acid and acetone effected trans-oximatio

40 d by biomimetic oxidative dimerization using trifluoroacetic acid and air yielding a 1:2 P/M mixture

41 Amberlyst 15, trifluoromethanesulfonic acid, trifluoroacetic acid and boron trifluoride etherate) or

42 asma concentrations and urinary excretion of trifluoroacetic acid and bromide, indicative of oxidativ

43 The samples were precipitated with trifluoroacetic acid and centrifuged.

44 The combined use of trifluoroacetic acid and HCl during the synthesis result

45 ilable calibration solution, isotopocules of trifluoroacetic acid and immonium ions from the model pe

46 a scalable trifluoromethylation methodology, trifluoroacetic acid and its anhydride represent an attr

47 hyl acetal or paraldehyde in the presence of trifluoroacetic acid and pyridine or PPTS.

48 on of electron-rich arenes by sodium nitrate/trifluoroacetic acid and the successive treatment of iro

49 e enzyme subunits were dissociated in dilute trifluoroacetic acid and then renatured at pH 7.8 and se

50 Studies in a mixture of trifluoroacetic acid and trifluoromethanesulfonic acid s

51 Stoichiometric quantities of trifluoroacetic acid and trimethoxybenzene are used as t

52 D) ranged from 0.009 to 0.1 ng/L, except for trifluoroacetic-acid and perfluoropropanoic-acid with hi

53 Different ion pairing reagents like TFA (trifluoroacetic acid) and HFBA (heptafluorobutyric acid)

54 adient consisting of solvent A (0.1% aqueous trifluoroacetic acid) and solvent B (100% acetonitrile)

55 ypentadienals with a chiral secondary amine, trifluoroacetic acid, and a diene resulted in the format

56 hanced acidities, more acidic catalysts than trifluoroacetic acid, and a linear correlation between t

57 ylamine or with trityl alcohol and catalytic trifluoroacetic acid, and an efficient one-pot cyclo-gua

58 stablishes that acid additives (oxalic acid, trifluoroacetic acid, and particularly hydrochloric acid

59 s is readily formed by strong acids, such as trifluoroacetic acid, and to a lesser extent, by weak ac

60 es in the (19)F NMR spectrum such as that of trifluoroacetic acid are brought above the limit of quan

61 atalyzed hydroarylation of cinnamic acids in trifluoroacetic acid are erroneous.

62 In some cases, trifluoroacetic acid as a catalyst was added to obtain t

63 one-pot, three-component approach utilizing trifluoroacetic acid as a catalyst.

64 via a one-pot, three-component method using trifluoroacetic acid as a catalyst.

65 A C-18 reversed-phase column, acetonitrile-trifluoroacetic acid as a mobile phase, coupled with UV

66 ganoelectrocatalyst (im(+)) for the ORR with trifluoroacetic acid as a proton source in acetonitrile

67 lusion of either moisture or oxygen, and use trifluoroacetic acid as a stable and inexpensive fluorin

68 We used trifluoroacetic acid as additive in a CO(2)/methanol mob

69 ) column with ammonium acetate with 0.01% of trifluoroacetic acid as eluent A and acetonitrile as elu

70 ing a mixture of chloroform/methanol/aqueous trifluoroacetic acid as the mobile phase for size exclus

71 (250x4.6mm, 5microm) using acetonitrile/0.1% trifluoroacetic acid as the mobile phase.

72 NMR and IR spectroscopy and then exposed to trifluoroacetic acid as well as to several metal triflat

73 alkylethynyl) quinoxaline in the presence of trifluoroacetic acid at 65 degrees C has been described.

74 Importantly, the (19)F-NMR detected trifluoroacetic acid at a concentration more than five t

75 A protocol using trifluoroacetic acid at a temperature of 60 degrees C is

76 ion rates between water protons and (19)F of trifluoroacetic acid at concentrations ranging from 23 t

77 ponding perfluoroalkyl iodides with Oxone in trifluoroacetic acid at room temperature and subsequentl

78 The studied compounds are protonated by trifluoroacetic acid at the carbonyl oxygen, in spite of

79 Blood halothane and plasma and urine trifluoroacetic acid, bromide, and fluoride concentratio

80 edstock fluoroalkyl carboxylic acids such as trifluoroacetic acid by leveraging cooperative earth-abu

81 In the presence of trifluoroacetic acid, C-protonated dications are generat

82 Trifluoroacetic acid catalyzed [3 + 3] condensation of e

83 econdary reaction, as can be the case in the trifluoroacetic acid-catalyzed cleavage of amino acid am

84 Earlier, it was found that the trifluoroacetic acid-catalyzed condensation of 2 and 2 e

85 This trifluoroacetic acid-catalyzed protocol tolerates a broa

86 ipyrrane, and 16-selenatripyrrane under mild trifluoroacetic acid-catalyzed reaction conditions.

87 We find that analysis of acetonitrile/trifluoroacetic acid cellular extracts produces data sim

88 made to react with neutral acetylacetone and trifluoroacetic acid, confirming rT3 to be more acidic t

89 Treatment of [*I]Boc-SGMIB with trifluoroacetic acid delivered the final product.

90 ide (PVDF) membrane blots, hydrolyzed in 20% trifluoroacetic acid, derivatized, and analyzed by C-18

91 as deprotected (tert-butylhydrogen peroxide, trifluoroacetic acid-dichloromethane) to form mixtures o

92 acene undergoes diprotonation by exposure to trifluoroacetic acid, enabling the conversion of the coc

93 eated patients cumulative 96 h postoperative trifluoroacetic acid excretion was 12,900 (SE 1700) and

94 corporates a protein precipitation step with trifluoroacetic acid followed by addition of dichloromet

95 ng bilanes with aldehydes in the presence of trifluoroacetic acid, followed by an oxidative step.

96 of the terminal tert-butyl ester groups with trifluoroacetic acid, followed by condensation with a di

97 Recrystallization with trifluoroacetic acid following matrix deposition in MALD

98 of 6 with triethylsilane in the presence of trifluoroacetic acid furnished the tetraacetylenic hydro

99 Addition of trifluoroacetic acid gave a C-protonated monocation, and

100 following oxidation with DDQ and addition of trifluoroacetic acid, gave aromatic azulitriphyrin catio

101 Treatment of 1 with trifluoroacetic acid generates the unstable 2,3-diamino-

102 hydroxy derivatives with PCl3 in sulfuric or trifluoroacetic acid give mono- as well as didichloropho

103 easily removed under acidic conditions with trifluoroacetic acid giving the N-phosphonooxymethyl pro

104 nerated in the presence of a large excess of trifluoroacetic acid had a weakened Soret band absorptio

105 e, the concentration of ion-pairing reagent (trifluoroacetic acid) had the strongest impact on the re

106 nes, prepared by treating borane-amines with trifluoroacetic acid, have been shown to be efficient re

107 itrocellulose membrane, dissolved in acetone/trifluoroacetic acid/hexafluoroisopropanol/sinapinic aci

108 Couples, like HMDS and trifluoroacetic acid, HMDS and pentafluoropropionic acid

109 Trifluoroacetic acid (HOAcF) reversibly associates with

110 Interfacial reactivity, assessed with trifluoroacetic acid, hydroxylamine, and nitrogen dioxid

111 b was effected by tri-n-butyltin hydride and trifluoroacetic acid in a completely stereoselective man

112 ol % of 3,5-dichloropyridine, and 5 mol % of trifluoroacetic acid in acetic acid at 110 degrees C, va

113 For example, reaction of sulfoxide 27 with trifluoroacetic acid in chloroform provides, among other

114 1]heptyl trifluoroacetate readily eliminates trifluoroacetic acid in DMSO-d(6) via a cationic mechani

115 The samples were extracted with 25% trifluoroacetic acid in ethanol.

116 o-4-hydroxycinnamic acid in methanol and 10% trifluoroacetic acid in water are added to the peptide-c

117 Even small amounts of trifluoroacetic acid interfered with the intramolecular

118 These aggregates can be dissociated by trifluoroacetic acid into monomers which migrate as 10-k

119 The (1)H NMR spectrum of the gamma-picoline/trifluoroacetic acid ion pair shows a signal at delta =

120 The presence of trifluoroacetic acid is crucial for this catalytic react

121 1-Methyl-2-pyrrolidone (NMP) seeded with 5% trifluoroacetic acid is identified as a singular buffer,

122 how that an optimized S-Trap approach, where trifluoroacetic acid is substituted for PA, is a simple

123 bulk antigenic formats (freeze-thaw lysate, trifluoroacetic acid lysate, extracted membranes, affini

124 Ion pairing with trifluoroacetic acid may reduce overload, while the effe

125 functional group tolerance was observed for trifluoroacetic acid-mediated C-C triple bond cleavage a

126 An efficient trifluoroacetic acid-mediated denitrogenative hydroxylat

127 Key features of the synthetic routes include trifluoroacetic acid-mediated formation of a lactone tha

128 Trifluoroacetic acid mediates the hydroarylation of alke

129 water (20/80, v/v) and eluted with 2.5 mL of trifluoroacetic acid/MeOH (3/97, v/v).

130 Additional equilibrium measurements in trifluoroacetic acid, methylene chloride, and ethyl acet

131 In the intermolecular selectivity studies, trifluoroacetic acid, Mg(ClO4)2, and LiClO4 have been em

132 elution (92% H2O, 8% acetonitrile, and 0.1% trifluoroacetic acid) of an ODS II Spherisorb column, wi

133 low, and the protonation (with an excess of trifluoroacetic acid) of its derivatives results in the

134 the influence of ethanol, acetonitrile, and trifluoroacetic acid on the stability of the labeled pro

135 inone diimines, followed by cyclization with trifluoroacetic acid or 1,3-dicyclohexylcarbodiimide (DC

136 posure of 2-substituted anilines to PIFA and trifluoroacetic acid or 10 mol % Sc(OTf)(3) triggers nit

137 on protonation of the carbonyl function with trifluoroacetic acid or alkylation with triethyloxonium

138 tigated upon addition of either an excess of trifluoroacetic acid or an excess of selected metal (Mg(

139 The reaction utilizes trifluoroacetic acid or boron trifluoride as promoters.

140 tive aldehydes or ketones in the presence of trifluoroacetic acid or boron trifluoride etherate.

141 tions at different pH and in the presence of trifluoroacetic acid or hydrochloric acid.

142 Using either trifluoroacetic acid or silica-bound toluenesulfonic aci

143 ate constants for perfluorobutanoic acid and trifluoroacetic acid oxidation by SO(4)(*-) in the pH ra

144 ution with a mobile phase consisting of 0.1% trifluoroacetic acid (pH=1), acetonitrile and methanol a

145 of NMP as the main solvent and cleavage with trifluoroacetic acid, phenol, ethanedithiol, thioanisole

146 nsists of enzymatic reaction, quenching with trifluoroacetic acid, precipitation of the protein by ce

147 The substantial attenuation of trifluoroacetic acid production by disulfiram after halo

148 Trifluoroacetic acid promoted unprecedented domino react

149 In the presence of trifluoroacetic acid, proton reduction catalysis coincid

150 Acid cleavage with 10% trifluoroacetic acid provides the pure unsymmetrically s

151 In trifluoroacetic acid, Q5 exhibits halochromic behavior,

152 When the condensation is catalyzed with trifluoroacetic acid, rather than boron trifluoride, the

153 idic mobile-phase additives (e.g., formic or trifluoroacetic acid), reduce its use.

154 a thioimide that, on treatment with aqueous trifluoroacetic acid, releases the peptide from the resi

155 al transformation of the aglycone 5 into the trifluoroacetic acid salt of brasilicardin A (1 a) via a

156 The reaction of the HCl or trifluoroacetic acid salts of primary amines with carbon

157 1-min bead beating cycles in an acetonitrile/trifluoroacetic acid solvent.

158 mixture, to corresponding alcohol esters in trifluoroacetic acid solvent.

159 lent iodine(III) complex in non-superacidic (trifluoroacetic acid) solvent.

160 The oxidation of cyclohexane by the H2O2-trifluoroacetic acid system is revisited.

161 particles, eluted with a water/acetonitrile/trifluoroacetic acid (TFA) (68/32/0.1, v/v/v) solution.

162 he mixture of 1-butanesulfonic acid (BA) and trifluoroacetic acid (TFA) as the mixed ion-pairing reag

163 V vs. Fc/Fc(+) ) in acetonitrile (MeCN) with trifluoroacetic acid (TFA) as the proton source.

164 Addition of trifluoroacetic acid (TFA) eliminated the induction peri

165 es; perfluoromethoxyacetic acid (PFMOAA) and trifluoroacetic acid (TFA) exhibited the highest median

166 a combination of iodylbenzene (PhIO(2)) and trifluoroacetic acid (TFA) has been developed.

167 ed aziridines, arynes, and water promoted by trifluoroacetic acid (TFA) has been reported.

168 rile (0.1 M Bu(4)NPF(6)) solution containing trifluoroacetic acid (TFA) has been studied by transient

169 anol (IPA), the ion suppression effects from trifluoroacetic acid (TFA) in a typical peptide mapping

170 zinc, as low as 10 mol %, in the presence of trifluoroacetic acid (TFA) initiate the radical addition

171 Trifluoroacetic acid (TFA) is a commonly used mobile pha

172 Trifluoroacetic acid (TFA) is a persistent and mobile su

173 Trifluoroacetic acid (TFA) is a ubiquitous environmental

174 While trifluoroacetic acid (TFA) is an inexpensive and easily

175 Trifluoroacetic acid (TFA) is an ultrashort-chain PFAS a

176 Although trifluoroacetic acid (TFA) is not typically considered a

177 , urea, guanidine hydrochloride (GuHCl), and trifluoroacetic acid (TFA) on rhodopsin's secondary stru

178 time-resolved kinetic study on the effect of trifluoroacetic acid (TFA) on the hydrogen atom transfer

179 hydrazinolysis with solutions of either 0.1% trifluoroacetic acid (TFA) or low-molarity (100, 50, 20,

180 oxidation of trichloroacetic acid (TCA) and trifluoroacetic acid (TFA) resulted in lower recovery co

181 Release of the peptides on hydrolysis with trifluoroacetic acid (TFA) results in peptides that have

182 O-Mmsb-Resin is stable to the piperidine and trifluoroacetic acid (TFA) treatment used to remove Fmoc

183 nsity functional theory studies to show that trifluoroacetic acid (TFA) triggers switching between in

184 In addition, the acid modifier trifluoroacetic acid (TFA) was found to improve the AP-I

185 A combination of Fe(3+) and trifluoroacetic acid (TFA) was initially confirmed as an

186 Can replacing trifluoroacetic acid (TFA) with formic acid (FA) improve

187 rate coefficients for gas-phase reaction of trifluoroacetic acid (TFA) with two Criegee intermediate

188 Trifluoroacetic acid (TFA), an ultrashort chain PFAS, an

189 fluoroalkyl substances (PFASs), particularly trifluoroacetic acid (TFA), have emerged as global envir

190 Trifluoroacetic acid (TFA), perfluoropropanoic acid (PFP

191 nd sulfonic acids with less than 4 carbons): trifluoroacetic acid (TFA), perfluoropropanoic acid (PFP

192 Trifluoroacetic acid (TFA), perfluoropropanoic acid (PFP

193 In the presence of catalytic trifluoroacetic acid (TFA), the acetals at top of 4, 6 a

194 When using 0.1% of trifluoroacetic acid (TFA), the peak capacities of the t

195 In dichloromethane or trifluoroacetic acid (TFA), the reaction between 1 and e

196 In the presence of Cu(OAc)(2).H(2)O and trifluoroacetic acid (TFA), the reaction proceeds well t

197 atographic separation was feasible only with trifluoroacetic acid (TFA)-based mobile phases.

198 ctivation of the C-C triple bond of ynone by trifluoroacetic acid (TFA)-mediated lowest unoccupied mo

199 C CPMAS and (19)F MAS) NMR using ethanol and trifluoroacetic acid (TFA)-modified n-hexane as the mobi

200 dimethylformamide (DMF) and PFAS-classified trifluoroacetic acid (TFA).

201 conformational change upon protonation with trifluoroacetic acid (TFA).

202 nucleophilic attack but readily removed with trifluoroacetic acid (TFA).

203 s a complete reversibility after addition of trifluoroacetic acid (TFA).

204 ol-gels at pH 4.0 and eluted at pH 1.0 using trifluoroacetic acid (TFA).

205 ost completely transformed to the persistent trifluoroacetic acid (TFA).

206 %) and at the highest median concentrations (trifluoroacetic acid (TFA): 20 pg/m(3), perfluoropropion

207 4-anilinoquinazoline-2-carbonitriles in neat trifluoroacetic acid (TFA); (2) a Pd(OAc)2 (10 mol %) or

208 (1) with trifluoroperacetic acid (TFPAA) in trifluoroacetic acid (TFAA) proceeds with the formation

209 Upon treatment with trifluoroacetic acid, the closed nonfluorescent forms of

210 their 1e-reduced forms are active to reduce trifluoroacetic acid, the resulting Ni hydrides (dependi

211 pendant carboxylate group was removed using trifluoroacetic acid to afford poly(3,4-dihydroxybutyric

212 pai-dication species formed via addition of trifluoroacetic acid to F(8)Cmpd-I (F(8) = (tetrakis(2,6

213 ed with a dipyrrylmethane in the presence of trifluoroacetic acid to give the 22-oxa-21-carbaporphyri

214 es 8a,b, which were deprotected with aqueous trifluoroacetic acid to give the Z-enynes 9a,b.

215 ps: hydrolysis of the glycoprotein in 6.75 M trifluoroacetic acid to release mannose 6-phosphate and

216 ives of macrocycles generated by addition of trifluoroacetic acid to the appropriate macrocyclic solu

217 The addition of trifluoroacetic acid to the ROMP reaction substantially

218 om MeCHD to quinones, or, in the presence of trifluoroacetic acid, to a hydride transfer process.

219 Titration studies using trifluoroacetic acid tracked changes in the electronic s

220 Both trifluoroacetic acid-trapped I-1 and I-2, after isolatio

221 The use of toxic, costly, and low-boiling trifluoroacetic acid was avoided in the new mold of the

222 In-gel MAAH using 25% trifluoroacetic acid was developed and optimized for deg

223 Removal of the N-BOC group by trifluoroacetic acid was followed by sequential coupling

224 eprotected with HCl/AcOH to provide 1, while trifluoroacetic acid was required to deprotect 2e and af

225 Photoexcitation of 2 in the presence of trifluoroacetic acid was shown to generate H(2).

226 Finally, extraction with 0.1% trifluoroacetic acid was used to selectively precipitate

227 s of 3 under mild acidic conditions, such as trifluoroacetic acid/water mixtures at room temperature.

228 native insulin on reverse-phase HPLC, using trifluoroacetic acid/water/acetonitrile gradients.

229 rotection of the peptide were carried out in trifluoroacetic acid which also generated unprotected me

230 These included trifluoroacetic acid, which reached mg m(-3) quantities

231 Replacing trifluoroacetic acid with a catalytic amount of Lewis ac

232 UV-vis spectra in the presence of trifluoroacetic acid with an applied potential confirmed

233 to be released triggered by an organic acid (trifluoroacetic acid), with subsequent regeneration of t

234 9-90% and ketones using catalytic amounts of trifluoroacetic acid yielding 25-83%.

235 of 5-aryloxazolidines with triethylsilane in trifluoroacetic acid yields three types of products: N,N