ライフサイエンスコーパス: Ar

1 ns of the Sn(II) hydrides [ArSn(mu-H)]2 (1) (Ar = Ar(iPr4) (1a), Ar(iPr6) (1b); Ar(iP4) = C6H3-2,6-(C

2 on of the aluminum iodide AlI(2)Ar(iPr8) (1; Ar(iPr8) = C(6)H-2,6-(C(6)H(2)-2,4,6-Pr(i)(3))(2)-3,5-Pr

3 rides [ArSn(mu-H)]2 (1) (Ar = Ar(iPr4) (1a), Ar(iPr6) (1b); Ar(iP4) = C6H3-2,6-(C6H3-2,6-(i)Pr2)2, Ar

4 H)]2 (1) (Ar = Ar(iPr4) (1a), Ar(iPr6) (1b); Ar(iP4) = C6H3-2,6-(C6H3-2,6-(i)Pr2)2, Ar(iPr6) = C6H3-2

5 ,6-trimethoxyphenyl) and Ar(F)-P=CPh(2) [1b: Ar(F) = 2,6-bis(trifluoromethyl)phenyl] have been prepar

6 rowded Sn(II) hydride [Ar((i)Pr4)Sn(mu-H)]2 (Ar((i)Pr4) = C6H3-2,6(C6H3-2,6-(i)Pr2)2) (1b) reacts wit

7 A new cyclic Ar/O(2) - Ar/Cl(2) ICP RIE process has been developed to address m

8 Reduction of the aluminum iodide AlI(2)Ar(iPr8) (1; Ar(iPr8) = C(6)H-2,6-(C(6)H(2)-2,4,6-Pr(i)(

9 Me(2)Ar')] centers is described, where PMe(2)Ar' are the terphenyl phosphine ligands PMe(2)Ar(Xyl)(2)

10 tion at cationic [(eta(5)-C(5)Me(5))Ir(PMe(2)Ar')] centers is described, where PMe(2)Ar' are the terp

11 nate complexes [(eta(5)-C(5)Me(5))IrCl(PMe(2)Ar')](+), 2(Xyl)(+) and 2(Dipp)(+), into the correspondi

12 ationic species, [(eta(5)-C(5)Me(5))Ir(PMe(2)Ar')](2+), is proposed.

13 When NEt(3) is present, the PMe(2)Ar(Dipp)(2) system is shown to proceed via 4(Dipp)(+) as

14 phosphine ligands PMe(2)Ar(Xyl)(2) and PMe(2)Ar(Dipp)(2).

15 r' are the terphenyl phosphine ligands PMe(2)Ar(Xyl)(2) and PMe(2)Ar(Dipp)(2).

16 iron complex Fe(BF)(CO)(2)(CNAr(Tripp2))(2) [Ar(Tripp2), 2,6-(2,4,6-(i-Pr)(3)C(6)H(2)](2)C(6)H(3); i-

17 = CN, Cl, 4-OC(6)H(4)NO(2)) and LPt(IV)F(2)(Ar)(HX) (X = NHAlk; Alk = n-Bu, PhCH(2), cyclo-C(6)H(11)

18 Remarkably, the LPt(IV)F(2)(Ar)(HX) complexes with alkylamine ligands (HX = NH(2)Alk

19 When a difluoro complex LPt(IV)F(2)(Ar)(py) is treated with TMS-X (TMS = trimethylsilyl; X=

20 compared to the formation of stable [PdL(2)(Ar(F))(2)] complexes in the presence of a donor ligand o

21 the reaction typically stops at the [PdL(2)(Ar(F))(2)] stage after two transmetalation steps.

22 les an unprecedented chemoselective C(sp(2))-Ar sigma-bond insertion of the alkene.

23 ) = C(6)H(3)-2,6-(C(6)H(3)-2,6-Pr(i)(2))(2), Ar(iPr6) = C(6)H(3)-2,6-(C(6)H(2)-2,4,6-Pr(i)(3))(2); M

24 a mild reducing atmosphere (e.g., 3.3% H(2)/Ar).

25 By demonstrating the ability of the N(2)/Ar approach to resolve N(2) deficits in surface water ca

26 ysis to evaluate the sensitivity of our N(2)/Ar approach, feasibility studies were conducted in the c

27 (1b); Ar(iP4) = C6H3-2,6-(C6H3-2,6-(i)Pr2)2, Ar(iPr6) = C6H3-2,6-(C6H2-2,4,6-(i)Pr3)2) with norbornen

28 ryl-ate species of the form [U(Ar)(6) ](2-) (Ar=Ph, p-tolyl, p-Cl-Ph).

29 th metal, (NacNac(NMe2))Sc{NB(NAr'CH)2} (25, Ar' = 2,6-C6H3(i)Pr2, NacNac(NMe2) = Ar'NC(Me)CHC(Me)NCH

30 omplex PhB((t)BuIm)(3)Fe-NC-Mo(N(t)BuAr)(3) (Ar = 3,5-Me(2)C(6)H(3)) is readily assembled from a new

31 CO)(3)CpMo-MoCp(CO)(3) gave ArM-MoCp(CO)(3) (Ar = Ar(iPr4) or Ar(iPr6); M = Sn or Pb).

32 of organic alkylarene derivatives (Ar-CH(3), Ar-CH(2)-R) to the corresponding acids and ketones (Ar-C

33 icarboxamido ligand, LCu(III)-O(2)CAr(1) (3, Ar(1) = meta-chlorophenyl), and we compare its reactivit

34 ling surface components(12-15), its N(2)/(36)Ar and N(2)/(3)He ratios are indistinguishable from thos

35 terize mantle endmember delta(15)N, N(2)/(36)Ar and N(2)/(3)He values.

36 ifference in (15)N/(14)N from air), N(2)/(36)Ar and N(2)/(3)He.

37 s slightly increased delta(15)N and N(2)/(36)Ar values relative to estimates for the convective mantl

38 2) Geologic mapping and (40)Ar-(39)Ar dates confirm that both pre- and postimpact basaltic

39 Seven new (40)Ar/(39)Ar ages from selected products of the Monti Sabatini and

40 We present four new (40)Ar/(39)Ar ages of tephra layers from an aggradational successio

41 We combine (40)Ar/(39)Ar geochronology of volcanic deposits and a geomorpholog

42 New (40)Ar/(39)Ar on tephras and ESR dates on bleached quartz securely

43 interpret complex populations of (40)Ar/(39)Ar sanidine and U-Pb zircon dates and a substantially im

44 uminescence, (40)argon/(39)argon ((40)Ar/(39)Ar) and uranium-series dating to constrain the sequence

45 and visual stratigraphy corroborates the (39)Ar ages.

46 ow that the adaptation of this method to (39)Ar is now available for glaciological applications, by d

47 Radiometric dating with (39)Ar covers a unique time span and offers key advances in

48 ition to give the dicopper(II) diketimide 4 (Ar=2,6-(i) Pr2 C6 H3 ) or undergo nitrile insertion to g

49 of the diplumbynes Ar(Pri(4))PbPbAr(Pri(4)) (Ar(Pri(4)) = C(6)H(3)-2,6-(C(6)H(3)-2,6-Pr(i)(2))(2)) it

50 2) Geologic mapping and (40)Ar-(39)Ar dates confirm that both pre- and postimpact ba

51 tion; luminescence, (40)argon/(39)argon ((40)Ar/(39)Ar) and uranium-series dating to constrain the se

52 We combine (40)Ar/(39)Ar geochronology of volcanic deposits and a geomo

53 Seven new (40)Ar/(39)Ar ages from selected products of the Monti Sabat

54 We present four new (40)Ar/(39)Ar ages of tephra layers from an aggradational su

55 New (40)Ar/(39)Ar on tephras and ESR dates on bleached quartz se

56 hich to interpret complex populations of (40)Ar/(39)Ar sanidine and U-Pb zircon dates and a substanti

57 4,7-Dihydro-6-nitro-7-Ar-5-R-azolo[1,5-a]pyrimidines were obtained by the mult

58 insertion to give diazametallocyclobutene 8 (Ar=4-Ph-2,6-iPr2 C6 H2 ).

59 crowded diplumbyne Ar(Pri(8))PbPbAr(Pri(8)) (Ar(Pri(8)) = C(6)H-3,5-Pr(i)(2)-2,6-(C(6)H(2)-2,4,6-Pr(i

60 conditions (<=80 degrees C, 1 bar) afforded Ar(iPr4)M=MoCp(CO)(2) or Ar(iPr6)M=MoCp(CO)(2) in modera

61 ) (5) with chlorotriphenylmethane afforded ((Ar)L)FeCl((*)NAd) (6) with concomitant expulsion of Ph3C

62 reduction of equal magnitude observed after Ar irradiations.

63 When photolyzing cis-HOPO in an Ar-matrix at 2.8 K, the simplest dioxophosphorane HPO(2)

64 The title compounds, TMOP-P=CPh(2) (1a) and Ar(F)-P=CPh(2) (1b), along with TMOP-PH(2) (3a) have bee

65 erences in gas partitioning between N(2) and Ar are being neglected.

66 Ex-vessel low energy and fluence D(2)(+) and Ar(+) irradiations were characterized in-situ to elucida

67 re only partly accessible to N(2) (77 K) and Ar (87 K), while larger uptakes are measured with CO(2)

68 rresponding acids and ketones (Ar-C(O)OH and Ar-C(O)-R), as well as hydride silanes ([Si]-H) to silan

69 h(2) (1a: TMOP = 2,4,6-trimethoxyphenyl) and Ar(F)-P=CPh(2) [1b: Ar(F) = 2,6-bis(trifluoromethyl)phen

70 ition) behaviour of binary (CH4 + C3H8) and (Ar + CO2) mixtures over the temperature range from (248.

71 the Sn(II) hydrides [ArSn(mu-H)]2 (1) (Ar = Ar(iPr4) (1a), Ar(iPr6) (1b); Ar(iP4) = C6H3-2,6-(C6H3-2

72 )CpMo-MoCp(CO)(3) gave ArM-MoCp(CO)(3) (Ar = Ar(iPr4) or Ar(iPr6); M = Sn or Pb).

73 d homo- and direct coupling products (Ar-Ar, Ar-Alk) in these transformations.

74 etylene (C2H2) as carbon source in an argon (Ar) and nitrogen (N2) atmosphere.

75 generated in cell culture media by an argon (Ar) plasma jet.

76 ntration ratio of nitrogen (N(2)) and argon (Ar) in air equilibrated with surface water, we were able

77 Chemically binding to argon (Ar) at room temperature has remained the privilege of th

78 us research used the ratio of N(2) to argon (Ar) to quantify net production of N(2) via denitrificati

79 of alkynes of the general formula ArPbPbAr (Ar = terphenyl ligand with different steric properties)

80 from the transmetalation of [(XPhos)ArPdBr] (Ar = p-CF(3)-C(6)H(4)) with a model sulfoxonium ylide wa

81 ium-catalyzed homocoupling of arylboronates (Ar(F)-Bpin) containing two ortho-fluorine substituents i

82 t of the conformational flexibility of Ar-Au-Ar intermediates, via systematic modulation of the lengt

83 m axles paired to the weakly coordinating [B(Ar(F))(4)](-) anion.

84 ding a bonding analysis of the exceptional B-Ar bond.

85 reduced subchondral bone volume fraction (B.Ar/T.Ar) were observed.

86 plate thickened concomitant with increased B.Ar/T.Ar.

87 methylamino)-substituted benzhydryl benzoate Ar(2)CH-OBz to the phenyl(perfluorophenyl)iodonium ion w

88 N)(11)](-), which indeed spontaneously binds Ar at 298 K.

89 Reduction of ((Ar)L)Co(II)Br ((Ar)L = 5-mesityl-1,9-(2,4,6-Ph(3)C(6)H(2))dipyrrin) with

90 u)Ar((i)Pr6) (6a) or the monohydrido bridged Ar((i)Pr4)S n(mu-H)S n(CH2CH2(t)Bu)Ar((i)Pr4) (6b).

91 o bridged Ar((i)Pr4)S n(mu-H)S n(CH2CH2(t)Bu)Ar((i)Pr4) (6b).

92 the structure Ar((i)Pr6)Sn-Sn(H)(CH2CH2(t)Bu)Ar((i)Pr6) (6a) or the monohydrido bridged Ar((i)Pr4)S n

93 xes ((R)dmx)Cu(2)(mu(2)-NAr) (R: Mes, (t)Bu; Ar: 4-MeOC(6)H(4), 3,5-(F(3)C)(2)C(6)H(3)) were synthesi

94 opherol Ar(1)OH, 2,4,6,-tri-tert-butylphenol Ar(3)OH, and butylated hydroxy-toluene Ar(4)OH, are effe

95 Fuel dilution by Ar in 0% to 90% range controlled the flame temperature.

96 mplexes (four of which are new) supported by Ar-BIAN ligands.

97 viously reported C-H amination mediated by ((Ar)L)Co(NR) ((Ar)L = 5-mesityl-1,9-(2,4,6-Ph(3)C(6)H(2))

98 depending on whether it is present at the C-Ar or N-Ar rings, which is ascribed to the opposing effe

99 oordinate copper(II) alkynyl [Cu(II)]-C=CAr (Ar = 2,6-Cl(2)C(6)H(3)) forms upon reaction of the alkyn

100 onjugated CF(3)-allylic-propargylic cations [Ar-C=C-C(+)(CF(3))-CH=CH-Ar'].

101 4-yn-3-oles [Ar-C=C-C(CF(3))(OSiMe(3))-CH=CH-Ar'] in the superacid TfOH give rise to reactive conjuga

102 ropargylic cations [Ar-C=C-C(+)(CF(3))-CH=CH-Ar'].

103 )Nacnac)] ((Ar)Nacnac = [(ArNCMe)(2)CH](-)), Ar = xylyl (Xyl), mesityl (Mes), 2,6-diethylphenyl (Dep)

104 )-pent-2-en-4-ynes [Ar-C=C-C(CF(3))=CH-CHAr'(Ar")] in good yields.

105 r((i)Pr4)(CH2CH3)2Sn(CH2CH2)Sn(CH2CH3)(CHCH2)Ar((i)Pr4) (4) featuring five ethylene equivalents, one

106 rate the predictive ability of baseline CIWA-Ar score, age, and severe head injury for developing del

107 drawal syndrome severity was defined by CIWA-Ar score as minimal (< 10), moderate (10-20), and severe

108 drawal Assessment for Alcohol, Revised (CIWA-Ar) scores.

109 [(CAAC)B(CO)Ar] is a source of the dicoordinate [(CAAC)ArB:] borylen

110 Treatment of ((Ar)L)CoBr ((Ar)L = 5-mesityl-1,9-(2,4,6-Ph(3)C(6)H(2))dipyrrin) with

111 four-coordinate organoazide-bound complex ((Ar)L)CoBr(N(3)(C(6)H(4)-p-(t)Bu)).

112 urnished a low-spin (S = 1/2) iron complex ((Ar)L)Fe which features an intramolecular eta(6)-arene in

113 a series of isolated Pt(IV) aryl complexes (Ar = p-FC(6)H(4)) LPt(IV)F(py)(Ar)X (X = CN, Cl, 4-OC(6)

114 four-coordinate cobalt tetrazido complexes ((Ar)L)Co(kappa(2)-N(4)R(2)) was observed upon addition of

115 ort a new class of water-soluble complexes, (Ar-tpy)Ru(II)(ACN)(3), utilizing designed terpyridines p

116 ymmetrical magnesium(I)-adduct complexes, [((Ar)Nacnac)(D)Mg-Mg((Ar)Nacnac)] ((Ar)Nacnac = [(ArNCMe)(

117 kinetic energy spectra from mixed Xe core - Ar shell clusters ionized by intense extreme-ultraviolet

118 (3))-mas(3), EuK-(Ar)Cy5-mas(3), and EuK-Cy5(Ar)-mas(3); the Cy5 dye acts as a functional backbone be

119 A new cyclic Ar/O(2) - Ar/Cl(2) ICP RIE process has been developed to

120 ylaza)-3,7-di(tert-butylphospha)cyclooctane; Ar(F) =3,5-(CF(3) )(2) C(6) H(3) ), to catalytically oxi

121 oxidation of organic alkylarene derivatives (Ar-CH(3), Ar-CH(2)-R) to the corresponding acids and ket

122 tively either mono- (ArNHAlk) or diarylated (Ar(2)NAlk) products in the presence or absence of an add

123 (5)H(5)) with the triple-bonded dimetallynes Ar(iPr4)MMAr(iPr4) or Ar(iPr6)MMAr(iPr6) (Ar(iPr4) = C(6

124 The more sterically crowded diplumbyne Ar(Pri(8))PbPbAr(Pri(8)) (Ar(Pri(8)) = C(6)H-3,5-Pr(i)(2

125 For one of the diplumbynes Ar(Pri(4))PbPbAr(Pri(4)) (Ar(Pri(4)) = C(6)H(3)-2,6-(C(6

126 The tin-tin triple bond in the distannyne Ar(iPr4)SnSnAr(iPr4), Ar(iPr4) = C(6)H(3)-2,6(C(6)H(3)-2

127 yclization (to form the isocyclic ring), S(E)Ar (to construct the macrocycle), and 2e(-),2H(+) oxidat

128 hesis processes, heterocycles syntheses, S(E)Ar reactions, metalation-ring opening sequences, cycload

129 atterns that do not conform to classical S(E)Ar regioselectivity rules can be readily accessed.

130 ive electrophilic aromatic substitution (S(E)Ar) reactions that are enabled via the application of th

131 1) s(-1)) regenerates Cy(2)BH and releases E-Ar-CH=CHBpin.

132 ion for chemical adsorption and a low energy Ar(+)-ion (11.2 eV) for physical desorption.

133 O(3))Cy5-mas(3), EuK-Cy5(SO(3))-mas(3), EuK-(Ar)Cy5-mas(3), and EuK-Cy5(Ar)-mas(3); the Cy5 dye acts

134 addition, yielding fluorophosphoranes 1.[F][Ar(F)].

135 either an in situ formed fluoroboronate (FB(Ar(3))(-)) or an exogenous boronic acid/ester (ArB(OR)(2

136 rea fraction of the evaporating liquid film (Ar).

137 The (1)H-hyperfine for (Ar)P(3)(B)Fe(NNH) derived from the presented ENDOR studi

138 +) indicating that the benzoate release from Ar(2)CH-OBz proceeds via an unassisted S(N)1-type mechan

139 ar, the synthesis of an ester-functionalised Ar-BIAN ligand was carried out by a mechanochemical mill

140 Further, ((Ar)L)Co(NR)(py) displays enhanced C-H amination reactivi

141 le exhibits high sensitivity to inert gases (Ar, N(2)), presenting a refractive index sensitivity (RI

142 Different reactant gases (Ar, He, O(2), and N(2)) and reactant gas mixtures are te

143 )2) (1b) reacts with excess ethylene to give Ar((i)Pr4)(CH2CH3)2Sn(CH2CH2)Sn(CH2CH3)(CHCH2)Ar((i)Pr4)

144 nt of 2 with carbon radicals (Ar(3)C.) gives Ar(3)COH and the Fe(II) complex 1, in direct analogy wit

145 tions to give the aluminum hydride {AlH(mu-H)Ar(iPr8)}(2), probably via a weakly bound dimer of 2 as

146 inolines, thus representing a pendant S(N)(H)Ar process.

147 Thus, a double-S(N)(H)Ar reaction sequence in the same molecule of quinoline h

148 osphorylpyridines, thereby completing S(N)(H)Ar reaction, with quinolines, the reaction stops at the

149 Heating of 1.[H][Ar(F)] regenerates 1 by C-H reductive elimination of Ar(

150 IBAL-H, generating hydridophosphoranes 1.[H][Ar(F)].

151 n of unactivated benzenes with aryl halides (Ar-X; X = I, Br, Cl) toward biaryl syntheses underwent s

152 ing a larger set of (noble) gases (N(2), He, Ar, and Kr) combined with a physically meaningful excess

153 recision better than 1% for N2, O2, CO2, He, Ar, 2% for Kr, 8% for Xe, and 3% for CH4, N2O and Ne.

154 n contrast, the less crowded Sn(II) hydride [Ar((i)Pr4)Sn(mu-H)]2 (Ar((i)Pr4) = C6H3-2,6(C6H3-2,6-(i)

155 the isolation of a series of (Xantphos)Ni(I)-Ar complexes that selectively activate alkyl halides ove

156 alkyl bromides are activated by (phen)Ni(I)-Ar through single-electron activation to afford radicals

157 We also identify Ar as a GDNF-repressed gene and Gdnf and Gfralpha1 as an

158 phosphastannene ((Mes)Ter)(Ar)Sn = P(IDipp) (Ar = C(6)F(4)[B(F)(C(6)F(5))(2)]).

159 to be enabled by the formation of a [Pd(II)(Ar)(H)] intermediate, which performs selective hydride i

160 DalphosAu(+) for the formation of a Au(III) -Ar intermediate.

161 ridine with a four-coordinate cobalt imido ((Ar)L)Co(NAd)(py) ( K(a) = 8.04 M(-1)), as determined by

162 Oxidation of the three-coordinate imido ((Ar)L)Fe(NAd) (5) with chlorotriphenylmethane afforded ((

163 Br((*)N(C(6)H(4)-p-(t)Bu)) or Co(IV) imido ((Ar)L)CoBr(N(C(6)H(4)-p-(t)Bu)) complex.

164 The imido ((Ar)L)Co(NAd) exists in equilibrium in the presence of py

165 shed three-coordinate Co(III) alkyl imidos ((Ar)L)Co(NR), as confirmed by single-crystal X-ray diffra

166 rene intermediate such as a Co(III) iminyl ((Ar)L)CoBr((*)N(C(6)H(4)-p-(t)Bu)) or Co(IV) imido ((Ar)L

167 ns its initial structure at 325 degrees C in Ar atmosphere without leakage of the liquid Li.

168 analyzed at Weill Cornell Medicine-Qatar in Ar-Rayyan, Qatar.

169 n of the midfoot and phalangeal reduction in Ar. ramidus relative to the African apes is consistent w

170 In this work, individual Ar atoms are trapped at 300 K in nano-cages consisting o

171 32 organocatalysts with benzhydrylium ions (Ar(2)CH(+)) and structurally related quinone methides, c

172 bond in the distannyne Ar(iPr4)SnSnAr(iPr4), Ar(iPr4) = C(6)H(3)-2,6(C(6)H(3)-2,6-iPr(2))(2), undergo

173 es Ar(iPr4)MMAr(iPr4) or Ar(iPr6)MMAr(iPr6) (Ar(iPr4) = C(6)H(3)-2,6-(C(6)H(3)-2,6-Pr(i)(2))(2), Ar(i

174 K-Ar dating of authigenic, syn-weathering illite from sapr

175 )-R) to the corresponding acids and ketones (Ar-C(O)OH and Ar-C(O)-R), as well as hydride silanes ([S

176 om beta-carotene samples bombarded by 15 keV Ar(2000).

177 Sputter yield of a 20 keV Ar(1800)(+) ion on ice has been determined as 1500 (+/-8

178 me constant of defect relaxation for 500 keV Ar ion bombardment of Si at 100 degrees C with the follo

179 C under pulsed beam irradiation with 500 keV Ar ions when the total ion fluence is split into a train

180 Meanwhile, Fe oxides do not react with Kr, Ar and Ne.

181 f a pyridine solution of the Fe(II) azide [L(Ar*)]FeN3(py) (3-py) at 0 degrees C cleanly generates th

182 es C cleanly generates the Fe(IV) nitride [L(Ar*)]FeN(py) (1).

183 rted by a bulky trisphosphinoborane ligand ((Ar)P(3)(B)), generates an S = 1/2 terminal Fe(NNH) speci

184 (I)-adduct complexes, [((Ar)Nacnac)(D)Mg-Mg((Ar)Nacnac)] ((Ar)Nacnac = [(ArNCMe)(2)CH](-)), Ar = xyly

185 alides at a similar or faster rate than most Ar-O bonds.

186 films grown at 200 degrees C under 15 mTorr Ar, indicating excellent crystallinity and surface smoot

187 odosilicon(I) dimer [IAr (I)Si:]2 (IAr =:C{N(Ar)CH}2 ) with 4 equiv of IMe (:C{N(Me)CMe}2 ), which pr

188 e electron-rich, less sterically demanding N(Ar) ligand scaffold, and compare it with previously repo

189 )-OOR complexes containing N-heterocyclic (N(Ar)) ligand scaffolds can have a dramatic influence on a

190 as the steric properties of the supporting N(Ar) ligands.

191 bstitutions that proceed by concerted (cS(N) Ar) rather than classical, two-step, S(N) Ar mechanisms.

192 similar electronic factors to classical S(N) Ar chemistry, which implies the destabilisation of trans

193 N) Ar) rather than classical, two-step, S(N) Ar mechanisms.

194 The electrophotocatalytic S(N) Ar reaction of unactivated aryl fluorides at ambient tem

195 Whereas traditional S(N) Ar reactions require substantial activation of the aroma

196 inolones through the incorporation of a S(N) Ar step.

197 er from the concerted to a dissociative CS(N)Ar type of reactivity for aryl electrophiles.

198 Key issues include a multiday S(N)Ar arylation of a secondary sulfonamide using HMPA as so

199 mperature atroposelective intramolecular S(N)Ar cyclizations for sequential CD (8:1 dr) and DE ring c

200 hydroquinolines through an isomerization/S(N)Ar in the same reaction pot at the elevated temperature.

201 t C-halogen bond formation occurs via an S(N)Ar pathway, and phosphine elimination is the rate-determ

202 tion-metal-free, tandem Michael addition-S(N)Ar process is delineated.

203 conditions, permitting sequential Suzuki/S(N)Ar processes inaccessible to the heterocyclic chlorides.

204 rs is demonstrated via a highly reactive S(N)Ar reaction of 4-quinolinyl sulfones with a range of str

205 a tandem Michael addition-intramolecular S(N)Ar reaction or a tandem Michael addition-intramolecular

206 scribed and a coherent picture of when a S(N)Ar reaction proceeds via a stepwise and when via a conce

207 des from aryl halides remains limited to S(N)Ar reactions between highly activated ArX substrates and

208 far only isolated examples of concerted S(N)Ar reactions have been described and a coherent picture

209 al group swap) results from a cascade of S(N)Ar reactions, which are facilitated by azidoazomethine-t

210 that influence the mechanistic choice of S(N)Ar reactions.

211 aining reactivity toward nucleophiles in S(N)Ar reactions.

212 -b]pyrazines via a tandem hydroamination-S(N)Ar sequence that makes use of mild reagents under cataly

213 can be difficult to access by classical S(N)Ar strategies, with the potential for use in the synthes

214 mo-8-arylBODIPY derivatives suitable for S(N)Ar substitution reactions with phenols exclusively at po

215 nucleophilic aromatic substitution (CRA-S(N)Ar) enables the fluorination of electron-rich arenes wit

216 Nucleophilic aromatic substitution (S(N)Ar) is a classical reaction with well-known reactivity t

217 Nucleophilic aromatic substitution (S(N)Ar) is routinely used to install (19)F(-) and (18)F(-) i

218 lar nucleophilic aromatic substitutions (S(N)Ar) reactions is a stepwise process that proceeds via a

219 via nucleophilic aromatic substitution (S(N)Ar).

220 tial nucleophilic aromatic substitution (S(N)Ar)/second-order nucleophilic substitution (S(N)2) react

221 e variety of transformations (acylation, S(N)Ar, silylation, solvolysis, Pd catalyzed C-S cross-coupl

222 A tandem acetylene-activated S(N)Ar-anionic cyclization strategy is presented for the syn

223 rene polarity requirements necessary for S(N)Ar-based fluorination.

224 s study introduces a modular and tunable S(N)Ar-based reactive group for targeting reactive cysteines

225 The favorability of an S(N)Ar-like mechanism for the cyclization was supported by D

226 heterobiaryl bond is formed via a tandem S(N)Ar-phosphorus ligand-coupling sequence.

227 ng on whether it is present at the C-Ar or N-Ar rings, which is ascribed to the opposing effect on me

228 el was validated experimentally with H2, N2, Ar and CH4 on three classes of microporous materials: tr

229 ollision cross sections (Omega) with He, N2, Ar, CO2, and N2O were measured for the 20 common amino a

230 ew modes of reactivity between arylazides N3 Ar with a bulky copper(I) beta-diketiminate.

231 [(i) Pr2 NN]Cu(NCMe) with bulkier azides N3 Ar leads to terminal nitrenes [(i) Pr2 NN]Cu]=NAr that d

232 plexes, [((Ar)Nacnac)(D)Mg-Mg((Ar)Nacnac)] ((Ar)Nacnac = [(ArNCMe)(2)CH](-)), Ar = xylyl (Xyl), mesit

233 er continuous or pulsed beams of 500 keV Ne, Ar, Kr, or Xe ions.

234 of LH [L = {(ArNH)(ArN)-C=N-C=(NAr)(NHAr)}; Ar =2,6-Et(2)-C(6)H(3)] with a commercially available al

235 2} (25, Ar' = 2,6-C6H3(i)Pr2, NacNac(NMe2) = Ar'NC(Me)CHC(Me)NCH2CH2NMe2).

236 ed C-H amination mediated by ((Ar)L)Co(NR) ((Ar)L = 5-mesityl-1,9-(2,4,6-Ph(3)C(6)H(2))dipyrrin), ((T

237 es confirm assembly of homologous U(VI)(mu-O(Ar))(2)M(n+) cores with a range of mono-, di-, and triva

238 itrene intermediates [Cu](kappa(2) -N,O-NC(O)Ar) to provide carbon-based radicals R(.) and copper(II)

239 opper(II)amide intermediates [Cu(II) ]-NHC(O)Ar that subsequently capture radicals R(.) to form produ

240 pture radicals R(.) to form products R-NHC(O)Ar.

241 n (Fc = Fe(eta(5)-C5H5)(eta(5)-C5H4); E = O; Ar = phenyl, naphthyls, (R)-BINOL, [3]ferrocenophanyl; E

242 Here we combine high-resolution underway O2/Ar, which provides an estimate of net community producti

243 egenerates 1 by C-H reductive elimination of Ar(F)-H, where experimental and computational studies es

244 impact of the conformational flexibility of Ar-Au-Ar intermediates, via systematic modulation of the

245 Here I show that the foot of Ar. ramidus is most similar to living chimpanzee and gor

246 The foot morphology of Ar. ramidus suggests that the evolutionary precursor of

247 (3e) have been isolated from the reaction of Ar(F)-Bpin with Pd(OAc)(2) in acetonitrile solvent, with

248 Pr(i)(2))(2)) it was shown that reduction of Ar(Pri(4))Pb(Br) using a magnesium(I) beta-diketiminate

249 The trapping and release of Ar is studied combining surface science methods and dens

250 to describe even qualitatively the shape of Ar adsorption isotherms on hydrated and dehydrated Cu-BT

251 The trapping of Ar atoms is detected in situ using synchrotron-based amb

252 Lastly, the enhanced reactivity of ((Ar)L)Co(NR)(py) can be correlated to a higher spin-state

253 Reduction of ((Ar)L)Co(II)Br ((Ar)L = 5-mesityl-1,9-(2,4,6-Ph(3)C(6)H(2

254 Treatment of ((Ar)L)Co(I) with a stoichiometric amount of various alkyl

255 Treatment of ((Ar)L)CoBr ((Ar)L = 5-mesityl-1,9-(2,4,6-Ph(3)C(6)H(2))di

256 l-3-(trifluoromethyl)-pent-1-en-4-yn-3-oles [Ar-C=C-C(CF(3))(OSiMe(3))-CH=CH-Ar'] in the superacid Tf

257 C, 1 bar) afforded Ar(iPr4)M=MoCp(CO)(2) or Ar(iPr6)M=MoCp(CO)(2) in moderate to excellent yields.

258 O)(3) gave ArM-MoCp(CO)(3) (Ar = Ar(iPr4) or Ar(iPr6); M = Sn or Pb).

259 le-bonded dimetallynes Ar(iPr4)MMAr(iPr4) or Ar(iPr6)MMAr(iPr6) (Ar(iPr4) = C(6)H(3)-2,6-(C(6)H(3)-2,

260 omplexes, by simple application of vacuum or Ar-flow to remove H(2).

261 s react with the iminosulfur oxydifluorides (Ar-N=SOF(2) ) to produce sulfurofluoridoimidates (13 exa

262 termined as 1500 (+/-8%) water molecules per Ar(1800)(+) ion, consistent with our results from molecu

263 Reaction of 1 with perfluoroarenes (Ar(F)-F) results in C-F oxidative addition, yielding flu

264 azine with that of a new enzyme (rice PNGase Ar) and show that both enable release of glycans with mo

265 ndesired homo- and direct coupling products (Ar-Ar, Ar-Alk) in these transformations.

266 yl complexes (Ar = p-FC(6)H(4)) LPt(IV)F(py)(Ar)X (X = CN, Cl, 4-OC(6)H(4)NO(2)) and LPt(IV)F(2)(Ar)(

267 coupling but without observable LPt(IV)F(py)(Ar)X intermediates.

268 Treatment of 2 with carbon radicals (Ar(3)C.) gives Ar(3)COH and the Fe(II) complex 1, in dir

269 ly 475 degrees C, accumulation of radiogenic Ar, and rapid preeruption remobilization.

270 nikov hydroboration leading to regioisomeric Ar-C(Bpin)=CH(2).

271 Reduction of previously reported ((Ar)L)FeCl with potassium graphite furnished a low-spin (

272 ozygosity (He = 0.667) and allelic richness (Ar = 4.298) were similar, and F(ST) was low (0.031 overa

273 the associations of 17 diaryliodonium salts Ar(2)I(+)X(-) with 11 different Lewis bases (halide ions

274 To optimize the film's surface, a simple Ar plasma treatment revealed to be enough to remove the

275 d by triethylamine induced intramolecular SN(Ar) displacement reaction and subsequent Michael additio

276 ido species Sn2RHAr2 which has the structure Ar((i)Pr6)Sn-Sn(H)(CH2CH2(t)Bu)Ar((i)Pr6) (6a) or the mo

277 on and can be utilized as an Fe(I) synthon ((Ar)L = 5-mesityl-1,9-(2,4,6-Ph3C6H2)dipyrrin).

278 graphite afforded the novel Co(I) synthon ((Ar)L)Co(I).

279 ced subchondral bone volume fraction (B.Ar/T.Ar) were observed.

280 thickened concomitant with increased B.Ar/T.Ar.

281 nique "push-pull" phosphastannene ((Mes)Ter)(Ar)Sn = P(IDipp) (Ar = C(6)F(4)[B(F)(C(6)F(5))(2)]).

282 ecies, which is responsible for cleaving the Ar-F bond and is ultimately regenerated using H(2) and b

283 enging oxidative addition of LPd(0) into the Ar-NO2 bond.

284 2)ArP (1a-h), where the para position of the Ar group contains electron-donating or electron-withdraw

285 also gives the corresponding products of the Ar-X coupling but without observable LPt(IV)F(py)(Ar)X i

286 ability of the transition state in which the Ar and NO2 groups are anti to each other.

287 SH and CH(3), respectively, when attached to Ar or alkyl.

288 Exposure to Ar flow under same condition reverses the observed shift

289 espect to Ar(2)I(+)) and LB (with respect to Ar(2)CH(+)) indicates that different factors control the

290 the Lewis basicities LB(I) (with respect to Ar(2)I(+)) and LB (with respect to Ar(2)CH(+)) indicates

291 rich phenols, including alpha-rac-tocopherol Ar(1)OH, 2,4,6,-tri-tert-butylphenol Ar(3)OH, and butyla

292 henol Ar(3)OH, and butylated hydroxy-toluene Ar(4)OH, are effective electrochemical mediators for the

293 strong C-F bonds in trifluoromethylaromatic (Ar-CF3) systems.

294 uranium (IV) aryl-ate species of the form [U(Ar)(6) ](2-) (Ar=Ph, p-tolyl, p-Cl-Ph).

295 a 4-cyanophenyl group at benzothiazole unit (Ar = 4-C(6)H(4)CN) exhibits a comparatively high fluores

296 Unlike ((Ar)L)CoBr(N(3)(C(6)H(4)-p-(t)Bu)), a series of alkyl azi

297 ctra at 10 K when prepared under N(2) versus Ar atmospheres.

298 Subsequent reaction of 2 a/2 b with Ar-Li provided a highly effective toolbox for the prepar

299 tate selected NO molecules that collide with Ar atoms.

300 riaryl-3-(trifluoromethyl)-pent-2-en-4-ynes [Ar-C=C-C(CF(3))=CH-CHAr'(Ar")] in good yields.