ライフサイエンスコーパス: electron-withdrawing

1 d NO2) that ranged from electron-donating to electron-withdrawing.

2 racter, with the 1,5-triazole being the most electron-withdrawing.

3 e substituent on the aryl group becomes more electron-withdrawing.

4 uilding block, which is end capped by strong electron-withdrawing 2-(5,6-difluoro-3-oxo-2,3-dihydro-1

5 dithiaporphyrins, meso-substituted with both electron-withdrawing 4-phenylcarboxylic acids and relate

6 moderate to good yields for arenes carrying electron-withdrawing (50-85%) or weakly electron-donatin

7 of substituted tetrazines correlate with the electron-withdrawing abilities of the substituents.

8 g ring cleavage that is based on substituent electron-withdrawing ability by means of a polar effect

9 The increase in electron-withdrawing ability of C(1)-substituents facili

10 Having a strong electron-withdrawing ability, poly(diallyldimethylammoni

11 The synthetic results suggest that high electron-withdrawing ability, which has traditionally li

12 of a range of aryl rings, even those lacking electron-withdrawing activating groups, and provides a m

13 r-acceptor cyclopropanes with other types of electron-withdrawing activating groups.

14 ed by over a factor of 10 by adding a mildly electron-withdrawing adsorbate, C60, which also modifies

15 of this reaction is attributed to the use of electron-withdrawing alkenyl triflates, which offer sele

16 teroarenium salts bearing electron-donating, electron-withdrawing, alkyl, aryl, halogen, and haloalky

17 trogen atom, stable linear amides bearing an electron-withdrawing alpha-substituent (Z = Ar, PhSO(2),

18 polarity distinct from those of more common electron-withdrawing amide and sulfonamide units.

19 iodine](+) BF4(-) complexes substituted with electron withdrawing and donating functionalities in the

20 the cyclopentadiene rings on ferrocene with electron withdrawing and donating substituents, thus pro

21 cine-rich peptoid oligomers, possessing both electron-withdrawing and -donating substituents, in good

22 xaphyrins (with different steric effects and electron-withdrawing and -releasing character).

23 The method shows good tolerance to both electron-withdrawing and donating substituents on the in

24 n the presence of Cu-Mn spinel oxide B, both electron-withdrawing and electron-donating groups bearin

25 antitative yields and tolerates a variety of electron-withdrawing and electron-donating substituents

26 ctive diphenyltellurophene compounds bearing electron-withdrawing and electron-donating substituents

27 aromatic ring (whether electron donating or electron withdrawing) and can be extended to heteroaroma

28 Salicylaldehydes bearing electron-donating, electron-withdrawing, and halogen groups as well as 1-hy

29 gen-bonding energies and frequency shifts of electron-withdrawing aromatic substituents and very weak

30 Electron-withdrawing aryl groups on ArCCMe stabilize the

31 ture of methyl groups attached to a strongly electron-withdrawing atom such as a quaternary nitrogen.

32 By introducing highly electron-withdrawing atoms on targeted ligands, the ener

33 The influence of the electron-withdrawing azide group on the reduction of O-(

34 zation of anomeric charge development by the electron-withdrawing azide.

35 as found that more reactive nucleophiles and electron-withdrawing benzoyl groups on the donor favor t

36 to the DCM reporter via a self-eliminating, electron-withdrawing benzyl alcohol-carbamate linker off

37 ROAMP catalysts featuring electron-withdrawing benzylidynes not only selectively i

38 tron-donating -OCH3 and -OtBu groups and the electron-withdrawing -Br and -F atoms, on azobenzene iso

39 he unique SF5 functionality is also strongly electron-withdrawing but at the same time highly lipophi

40 Acidity is mediated by the electron withdrawing capacity of the 4'-substituent outl

41 even when the tethered pi-bond contained an electron-withdrawing carbomethoxy group.

42 abilization of the second protonation by the electron-withdrawing carbomethoxy substituents.

43 Compounds containing additional electron-withdrawing carboxylate groups, such as cinnaba

44 by electron delocalization but also contain electron-withdrawing centers, such as the carbonyl funct

45 itrogen homocoupling accelerated by the more electron-withdrawing CF3 substituent.

46 er resistance to air oxidation, the enhanced electron-withdrawing character induces blue shifts in th

47 ization energies progressively increase with electron-withdrawing character of the aryl groups when t

48 ges in the oxidation state of the metal, the electron-withdrawing character of the porphyrinato ligan

49 We find that increasing the electron-withdrawing character of the substituents gives

50 stituents with various electron-donating and electron-withdrawing characters were placed in available

51 tion rate of hydrolysis at pH 1 decreases as electron-withdrawing chlorine (Cl) substituents are adde

52 and that destabilizing the (1)p* state by an electron-withdrawing CN substituent at the ortho or para

53 ral methine hydrogen of TO is replaced by an electron withdrawing cyano group, which was expected to

54 ral acceptor part is formed by combining the electron-withdrawing cyano group with thiophene or benzo

55 hydrogen-bonding units that are activated by electron-withdrawing cyano groups.

56 4-(N,N-dimethylamino)phenylethynyl (1-4) or electron-withdrawing cyanobutadienyl peripheral substitu

57 ectron-donating moieties are connected to an electron-withdrawing dicyanovinylene moiety through anot

58 Remarkably, electron withdrawing/donating aroyl units including hete

59 ioselectivity correlating to the strength of electron-withdrawing/-donating groups on the ring of eac

60 gand and the chlorine atom on increasing the electron withdrawing effect of the R substituent.

61 The electron-withdrawing effect destabilizes 2 and promotes

62 -b]thiophene and the acceptor unit IC due to electron-withdrawing effect of F, and finally adjust ene

63 Due to the strong electron-withdrawing effect of the fluorine atoms the ro

64 bstituted zethrenes can be attributed to the electron-withdrawing effect of the imide groups and the

65 that the 1,5-triazole group exerts a strong electron-withdrawing effect on carbocations that is not

66 ing radical-stabilizing energies rather than electron-withdrawing effects as the dominating feature o

67 to C4 of the decalin system, as well as the electron-withdrawing effects of various substituents and

68 as stable under aerobic conditions providing electron withdrawing (either ester or nitrile) groups we

69 broad range of 1,7-enyne alcohols containing electron-withdrawing, electron-donating, and sterically

70 The reaction tolerates a wide range of electron-withdrawing, electron-neutral, and electron-don

71 ing core and 1,1-dicyanomethylene-3-indanone electron-withdrawing end groups.

72 via subtle chemical modifications on strong electron-withdrawing end-groups.

73 In particular, electron-withdrawing ester groups give rise to a 50 nm s

74 In contrast to the Mes* groups, the highly electron-withdrawing (F) Mes groups do not diminish the

75 Despite the presence of the highly electron-withdrawing fluorinated substituent, cyclic alp

76 roup on the amide of the isoselenazolone and electron-withdrawing fluoro substituents on the benzo fu

77 effects induced by the presence of strongly electron-withdrawing fluoro-bearing sulfonimidoyl moieti

78 on was faster from complexes containing less electron-withdrawing fluoroenolate groups and longer Pd-

79 e) bonds than from complexes containing more electron-withdrawing fluoroenolate groups and shorter Pd

80 Introduction of electron-withdrawing functional groups such as the nitro

81 ly modifying their chemical structures using electron-withdrawing functional groups.

82 te trend is observed for phlorins containing electron-withdrawing functionalities.

83 ivo metabolism involves the incorporation of electron-withdrawing functionality, such as the trifluor

84 critical chain length at the C3-position, an electron withdrawing group at the C5-position, the lengt

85 ased fluorescence quantum yield, whereas the electron withdrawing group at the meso position of BODIP

86 Bicyclic dihydropyrrolizines with an electron-withdrawing group (EWG) at the 5-position are f

87 erved for arylboronates containing two ortho electron-withdrawing group (EWG) substituents.

88 effect was measured for 1/p-X-C6H4OH with an electron-withdrawing group (kH/kD = 0.6-0.7; X = Cl, CF3

89 The necessity of having an electron-withdrawing group alpha to the phosphorus atom

90 The nature of the ynamide electron-withdrawing group and beta-substituent plays cr

91 In the absence of an activating electron-withdrawing group as part of the Michael accept

92 n against hepatitis B virus (HBV), though an electron-withdrawing group at C(5') generally correlates

93 third nucleobase pair to DNA and RNA, if an electron-withdrawing group at position 5 slows oxidation

94 tions involving fluorobenzenes with a single electron-withdrawing group at the para position of the a

95 genation, the present method works well with electron-withdrawing group bearing phenols and gives com

96 n-donating group and a trifluoromethyl as an electron-withdrawing group displays the most interesting

97 Typically, substituted aryl ketones with electron-withdrawing group do not need any ligand to giv

98 ifluoromethyl group serves as a unique sigma-electron-withdrawing group for the activation of the ole

99 The strength of the electron-withdrawing group further controls the alpha/ga

100 having both the higher dipole moment and the electron-withdrawing group in the equatorial phenyl ring

101 roup in the former, making the effect of the electron-withdrawing group on C1 stronger in the latter.

102 Depending on the choice of the electron-withdrawing group on the aniline nitrogen nucle

103 ctivity was observed for those possessing an electron-withdrawing group on the aryl groups.

104 ly in terms of the absence or presence of an electron-withdrawing group on the benzoyl moiety of the

105 While a strong electron-withdrawing group on the nitrogen atom is typic

106 The effects of an electron-withdrawing group on the organic chemistry of a

107 Isocyanates that bear an electron-withdrawing group react with allylic amines 1-3

108 copic data, revealing C(6)Cl(5) to be a more electron-withdrawing group than C(6)F(5), with a ca. +20

109 that chloro-enynes provide the optimal sigma-electron-withdrawing group to promote polarization and t

110 rs have been reported in which an additional electron-withdrawing group was added at the alpha-carbon

111 Aryl iodides with an ortho electron-withdrawing group were employed as the coupling

112 es, containing an alkenyl moiety and diverse electron-withdrawing group(s) at the adjacent positions,

113 heme; 2,6-DMBQ=2,6-dimethylbenzoquinone, EWG=electron-withdrawing group).

114 By virtue of a strong electron-withdrawing group, 2-dicyanomethylene-3-cyano-4

115 of common nitrogen nucleophiles bearing one electron-withdrawing group, and proceeds under mild reac

116 nfluence of the halogen bond donor atom, the electron-withdrawing group, and the linker group that br

117 nt and is remarkable for derivatives with an electron-withdrawing group, showing reactivity comparabl

118 When intermediates 3 contain a strongly electron-withdrawing group, such as C(4)-Cl or C(5)-NO2,

119 the perfectly folded conformer, and stronger electron withdrawing groups (triflate, cyano) give oligo

120 In addition, the effect of electron withdrawing groups bonded to a nitrogen atom, n

121 Photocatalysts with electron withdrawing groups exhibit the highest activity

122 3 selectivity without loss of potency, while electron withdrawing groups on the phenylamino B-ring we

123 uit voltage and yields a clear dependence on electron withdrawing groups.

124 gen bonds that are modulated by variation of electron withdrawing groups.

125 ivity were unaffected by introduction of two electron-withdrawing groups (-CO2R) at C4 and C6 of the

126 With moderately electron-withdrawing groups (acetoxy), we observe >90% o

127 th electron-donating (OH (1b), OCH3 (1c)) or electron-withdrawing groups (CN, (1d)).

128 acetylene reactivity by utilizing alkynes as electron-withdrawing groups (EWG) for promoting nucleoph

129 nucleophile electrostatic interactions, with electron-withdrawing groups (EWG) on the sp(2) system le

130 stant (sigma), which has positive values for electron-withdrawing groups (EWGs) and negative values f

131 were fine-tuned through the incorporation of electron-withdrawing groups (EWGs) like nitro and cyano

132 The presence of strongly electron-withdrawing groups (nitroaryl or acetyl) on the

133 atic ring (Y and Z = OMe) or the presence of electron-withdrawing groups (NO2) on the nonfused Ar rin

134 In the absence of electron-withdrawing groups able to resonate charge away

135 ecule, except in cruciforms substituted with electron-withdrawing groups along the vertical axis.

136 Oxindoles substituted at N-1 by electron-withdrawing groups and at C-3 by omega-amino ch

137 In all solvents, compounds with electron-withdrawing groups and extended conjugation ion

138 derivatives as well as aryl bromides bearing electron-withdrawing groups and/or ortho substituents.

139 Finally, kobs is observed to increase when electron-withdrawing groups are incorporated in the para

140 Substrates with electron-donating and electron-withdrawing groups are tolerated, in addition t

141 variety of substrates which include reactive electron-withdrawing groups are well tolerated to form 2

142 ompared to azetidines bearing other types of electron-withdrawing groups at C2.

143 n nucleophilic addition, various imines with electron-withdrawing groups at nitrogen have been studie

144 Lastly, hydrophobic electron-withdrawing groups at several positions in the

145 Electron-withdrawing groups at the benzylidene ether lig

146 ethodology is tolerant to electron-donor and electron-withdrawing groups at the substrates and the de

147 Stronger electron-withdrawing groups display more significant bat

148 tion rate and improve the selectivity, while electron-withdrawing groups increase the reaction rate a

149 g sulfonate leaving groups and 7-substituted electron-withdrawing groups is reported.

150 c alcohols functionalized with destabilizing electron-withdrawing groups like halides, carboxyesters,

151 Electron-withdrawing groups lower the LUMO+1 of tetrazin

152 Interestingly electron-withdrawing groups on O-6 or on C-1 of the acce

153 moderately electron-releasing or moderately electron-withdrawing groups on the aldehyde reactant.

154 process is tolerant of electron-donating and electron-withdrawing groups on the benzene ring and addi

155 The presence of electron-withdrawing groups on the benzenediazo moiety o

156 However, electron-withdrawing groups on the enone enable [2 + 4]

157 wide range of beta-sulfonyl enamines without electron-withdrawing groups on the nitrogen atom.

158 of substrates containing aromatic rings and electron-withdrawing groups positioned beta to one anoth

159 ons tolerated neutral, electron-donating and electron-withdrawing groups present in both substrates,

160 Ser/pThr), recognition motifs (biotin, RGD), electron-withdrawing groups to induce stereoelectronic e

161 omplexes (1 mol %) catalyze the migration of electron-withdrawing groups to selectively produce 3-sub

162 ediates) and the observed effect of proximal electron-withdrawing groups upon the degradation rates.

163 ields of these photoreactions increased when electron-withdrawing groups were used.

164 ly degraded by ferrate oxidation and IBU has electron-withdrawing groups which has slow reaction rate

165 implicity and its ability to directly access electron-withdrawing groups without recourse to oxidatio

166 ched are a function of the substituent, with electron-withdrawing groups yielding a lower energy long

167 very efficient when using substrates bearing electron-withdrawing groups, and allowed for the prepara

168 onor carbenoids, i.e., those with no pendant electron-withdrawing groups, are reported.

169 loride precursors with various substituents (electron-withdrawing groups, electron-donating groups, i

170 monoformyl, and diformyl hemes, that posses electron-withdrawing groups, resulted in higher E degree

171 For aldehydes with electron-withdrawing groups, significantly higher yields

172 , bearing a variety of electron-donating and electron-withdrawing groups, were designed and synthesiz

173 l acceptors, activated by aryl or heteroaryl electron-withdrawing groups.

174 , benzylic substituents and meta-substituted electron-withdrawing groups.

175 dications with phenyl rings substituted with electron-withdrawing groups.

176 ening effect, LPBWE, upon substitutions with electron-withdrawing groups.

177 higher catalytic activity than those having electron-withdrawing groups.

178 gnificantly limited to substrates containing electron-withdrawing groups.

179 ed alkynyl ethers with electron-donating and electron-withdrawing groups.

180 and demonstrated an activating effect of the electron withdrawing halogens on nitrile reactivity, lea

181 In contrast, electron-withdrawing heteroaromatic substrates formed 1,

182 ity of the olefin by the second, inductively electron-withdrawing heteroatom is the dominant factor,

183 tors is used for rationalizing the effect of electron-withdrawing heteroatoms (such as a cationic nit

184 at these triazole groups are all inductively electron-withdrawing in character, with the 1,5-triazole

185 Cyclic voltammetry established the electron withdrawing influence of 4-BPin, which slows th

186 The effect of electron-withdrawing ligands on the energy barriers of S

187 sahedral carboranes can act either as strong electron-withdrawing ligands or electron-donating moieti

188 ed a fundamental substituent effect in which electron-withdrawing meta-oxazole substituents increased

189 f related compounds featuring more efficient electron-withdrawing moieties.

190 nt complexes, resulting from the inductively electron withdrawing nature of this directing group on t

191 The electron-withdrawing nature of the allylic leaving group

192 ained in the first step was dependent on the electron-withdrawing nature of the functional groups, an

193 effect is discussed in terms of the powerful electron-withdrawing nature of the oxazolidinone system,

194 e C(2) ketal center and the aryl ring as the electron-withdrawing nature of the para-substituent is i

195 ns toward dienes and azides, promoted by the electron-withdrawing nature of the pyridinium rings, as

196 aining a multifunctional framework of strong electron-withdrawing nature.

197 ceptor cyclic alkyl amino carbene and of two electron-withdrawing nitrile groups, a borohydride react

198 on the halide substituent and the number of electron-withdrawing nitro substituents.

199 They demonstrate that the nature of the electron-withdrawing nitrogen protecting group has a ver

200 By introducing an electron-withdrawing nonparticipating group, benzyl sulf

201 the absence or presence of any substitutent (electron withdrawing or electron donating) in the 3-phen

202 of the BA functionality and the inclusion of electron-withdrawing or -donating substituents on the ph

203 uned in a predictable way in response to the electron-withdrawing or electron-donating ability of sub

204 it is compatible with the presence of either electron-withdrawing or electron-donating groups at the

205 e para-position of the two external rings by electron-withdrawing or electron-donating substituents.

206 R(1) and R(2) in the OPE portion were either electron-withdrawing or electron-donating, and their inf

207 ed on varying the nature and the position of electron-withdrawing or electron-releasing groups on the

208 ith fluorescence properties in which various electron-withdrawing or pi-extended conjugated groups ar

209 Electron donating and electron withdrawing ortho-substituents on 2-aminobenzoi

210 e unit, which lacks substitution by the more electron-withdrawing oxygen atoms.

211 ctivity of the donor in comparison to having electron withdrawing p-chloro (PClB) or p-cyanobenzyl et

212 These electron-withdrawing pendant fluorine atoms fine tune th

213 Highly electron-withdrawing pentafluorosulfanyl groups were pro

214 ordinating thioether group from the strongly electron withdrawing perfluoroalkyl groups.

215 chieved with catalyst 1a, featuring the most electron-withdrawing phosphine ligand.

216 erved indole product, is destabilized by the electron-withdrawing phthalimide substituent.

217 nt and to a smaller extent by increasing the electron-withdrawing power of the benzylic X substituent

218 s of this paper regarding both the different electron withdrawing properties of various benzyl ethers

219 turing carbonyl substituents with increasing electron-withdrawing properties (3a, phenyl; 3b, 3,5-bis

220 ambidentate C,O-radicals when increasing the electron-withdrawing properties of the carbonyl substitu

221 s of pi-conjugated materials, but the strong electron-withdrawing properties of the required syntheti

222 The strong electron-withdrawing properties of the trifluoromethyl g

223 The electron-withdrawing properties of these halogens also r

224 de complex, (BippyPhosPd(Ar)OPh); due to the electron-withdrawing property of the fluoroalkyl substit

225 y of the POCOP ligand is substituted with an electron withdrawing protonated dimethylamino group at t

226 w-spin state of the complex is stabilized by electron-withdrawing pyridyl ("X") substituents, but als

227 By establishing the need for electron-withdrawing resonant groups in the 3- and 6-pos

228 It was illustrated that introducing an electron-withdrawing site to amino acid anions could red

229 epting benzothiazolium, which exhibit higher electron-withdrawing strength than pyridinium and quinol

230 Despite their high electron-withdrawing strength, nitriles are not good ele

231 as much as 0.47 V through the addition of an electron-withdrawing substituent (CO2Me or CN) to the cy

232 loropyrimidines, further substituted with an electron-withdrawing substituent at C-5, has selectivity

233 th reduced pK(a) due to substitution with an electron-withdrawing substituent in the piperidine moiet

234 The selectivity is lower when an electron-withdrawing substituent is placed on the aromat

235 A strengthening arises when an electron-withdrawing substituent is placed ortho to the

236 nilines typically require the presence of an electron-withdrawing substituent on nitrogen to suppress

237 When the aryl ring bears a remote electron-withdrawing substituent, the isomer having both

238 ity is achieved with substrates that bear an electron-withdrawing substituent.

239 n electron-deficient olefin bearing a single electron-withdrawing substituent.

240 d is high for both the electron-donating and electron withdrawing substituents in aromatic aldehydes.

241 Strong electron releasing or electron withdrawing substituents lead almost exclusivel

242 Unexpectedly, electron withdrawing substituents on the salen framework

243 susceptibility of aromatic compounds bearing electron withdrawing substituents, such as nitro groups,

244 ontaining common and synthetically versatile electron-withdrawing substituents (NO(2), CN, F and Cl).

245 pi-complexation for arenes bearing strongly electron-withdrawing substituents (sigma > 0.43).

246 o complexes as an example case, these highly electron-withdrawing substituents allow for polymerizati

247 h substrates possessing electron-donating or electron-withdrawing substituents and also tolerates ste

248 and that these mechanisms can be altered by electron-withdrawing substituents and hydrogen-bonding s

249 roton affinity of the phenol using differing electron-withdrawing substituents and incorporated site-

250 h substrates possessing electron-donating or electron-withdrawing substituents and offers high reacti

251 series, even though it has the most strongly electron-withdrawing substituents and the least negative

252 and 2; i.e., strongly electron-donating and electron-withdrawing substituents are tolerated as well

253 Both electron-donating and electron-withdrawing substituents are tolerated on both

254 Strategic placement of electron-withdrawing substituents at the 2-, 3-, 5-, and

255 he 1,2-dihydropyrimidines with two different electron-withdrawing substituents at the C(2) position c

256 Only thiosemicarbazones with electron-withdrawing substituents at the imine carbon me

257 Only arenes with electron-withdrawing substituents can sufficiently stabi

258 nformational energy of a 5-aryl-1,3-dioxane: electron-withdrawing substituents decrease the conformat

259 Moreover, electron-withdrawing substituents destabilize the tetraz

260 Compounds bearing electron-withdrawing substituents have the highest photo

261 Larger, electron-withdrawing substituents in the 6- and 8-positi

262 amates containing both electron-donating and electron-withdrawing substituents in their para, ortho,

263 Moreover, the electron-withdrawing substituents increased the oxidatio

264 Diarylacetylenes bearing electron-withdrawing substituents lead to 2,3-diarylindo

265 (e) Electron-withdrawing substituents lead to higher activit

266 ng substituents leading to a weaker bond and electron-withdrawing substituents leading to stronger bo

267 H(2)(+) and p-OMeH(+) as extreme examples of electron-withdrawing substituents on a TA moiety.

268 lefin geometry (Z vs E), and the presence of electron-withdrawing substituents on adjacent carbons.

269 Electron-withdrawing substituents on the aldehyde favor

270 The presence of electron-withdrawing substituents on the alkyne is cruci

271 ce of halogen, alkyl, electron-donating, and electron-withdrawing substituents on the aromatic ring.

272 for dithianes bearing electron-releasing or electron-withdrawing substituents on the aryl moiety, ev

273 several diaryl urea anions correlated to the electron-withdrawing substituents on the aryl rings.

274 By installation of electron-withdrawing substituents on the N-aryl moieties

275 ere amino acids as well as electron-donating/electron-withdrawing substituents on the substrate.

276 of arenes involve the use of either strongly electron-withdrawing substituents or directing groups.

277 alculations further suggest that introducing electron-withdrawing substituents such as fluorides in t

278 Electron-withdrawing substituents such as nitro groups o

279 We also found that the attachment of electron-withdrawing substituents to carbon nanotubes sy

280 nd can be tuned by over 70-fold by appending electron-withdrawing substituents to the phenylenediamin

281 red by electron-donating substituents, while electron-withdrawing substituents typically result in 1:

282 and the combination of hydrogen-bonding and electron-withdrawing substituents was found to afford ac

283 ngement to take place despite the absence of electron-withdrawing substituents, and even with sterica

284 in the submicromolar range was attained with electron-withdrawing substituents, some compounds were f

285 an be suppressed through the introduction of electron-withdrawing substituents.

286 y from reactions involving ketones with more electron-withdrawing substituents.

287 n be tuned by attaching electron-donating or electron-withdrawing substituents.

288 yl chlorides possessing electron-donating or electron-withdrawing substituents.

289 lacetylene, which is also the best place for electron-withdrawing substituents.

290 than complexes containing aryl ligands with electron-withdrawing substituents.

291 l 1,4-dihydroquinolines are obtained with an electron-withdrawing sulfonyl group (left).

292 ions between the H12SubPc macrocycle and the electron-withdrawing TCBD unit directly attached at its

293 nilines (R-An), where R ranges from strongly electron-withdrawing to strongly electron-donating, decr

294 -deficient cavity due to the presence of the electron-withdrawing transition metals, thus allowing en

295 Electron-withdrawing trifluoromethyl groups were charact

296 nucleoside analogue trivially named dZ, the electron withdrawing unit was a nitro group.

297 aintaining a high planarity, introduction of electron-withdrawing units for lowering the bandgap (Eg)

298 on electron-donor units combined with strong electron-withdrawing units possess excellent electronic

299 bstituents ranging from electron-donating to electron-withdrawing, were reacted with [2-(13)C]-cyanoa

300 mentally, there appears to be a tendency for electron-withdrawing X to shift the methyl signal downfi