ライフサイエンスコーパス: cycloaddition reaction

1 an effective catalyst for the Huisgen [3+2] cycloaddition reaction.

2 ed using the copper-catalyzed sydnone-alkyne cycloaddition reaction.

3 hesis of bicyclic adduct through Diels-Alder cycloaddition reaction.

4 y through a copper(I)-catalyzed azide-alkyne cycloaddition reaction.

5 methane, a C-C or N-C coupling, and a formal cycloaddition reaction.

6 bromo-ethylmalonate and a retro-Diels-Alder cycloaddition reaction.

7 cation via the copper-catalyzed azide-alkyne cycloaddition reaction.

8 solely committed to the catalysis of a [4+2] cycloaddition reaction.

9 olymerization and azide-alkyne [3+2] Huisgen cycloaddition reaction.

10 eration of the copper-catalyzed azide-alkyne cycloaddition reaction.

11 ted for its ability to promote a Diels-Alder cycloaddition reaction.

12 omplexes using the CuI-mediated azide-alkyne cycloaddition reaction.

13 ough a novel Bronsted acid catalyzed [5 + 2] cycloaddition reaction.

14 ies through a copper catalyzed 3 + 2 Huisgen cycloaddition reaction.

15 r and may involve a Diels-Alder-type [4 + 2] cycloaddition reaction.

16 nds for the copper(I)-catalyzed azide-alkyne cycloaddition reaction.

17 use of a bulky vinyl ether in the key [4+2] cycloaddition reaction.

18 the asymmetric organocatalysis of the 4 + 3 cycloaddition reaction.

19 BO-NOTA) via copper-free Huisgen-1,3-dipolar cycloaddition reaction.

20 her understand the mechanism of this [3 + 2]-cycloaddition reaction.

21 enantioselective triple cascade 1,3-dipolar cycloaddition reaction.

22 G-II through a copper-catalysed azide-alkyne cycloaddition reaction.

23 socyanides to nitrile N-oxides via a [3 + 1] cycloaddition reaction.

24 o our knowledge, of an enzymatic 1,3-dipolar cycloaddition reaction.

25 en enol ether systems can participate in the cycloaddition reaction.

26 quence over the alternate hetero-Diels-Alder cycloaddition reaction.

27 an unsaturated aldehyde-allene for a [2 + 2] cycloaddition reaction.

28 ly prepared by enantioselective formal [3+2] cycloaddition reactions.

29 etrazine inverse electron demand Diels-Alder cycloaddition reactions.

30 reactivity of pentafulvenes in a plethora of cycloaddition reactions.

31 insertion, and [2 + 2], [3 + 2], and [4 + 2] cycloaddition reactions.

32 ioselectivities in nucleophilic addition and cycloaddition reactions.

33 ve as substrates for SN2, SN2', and aldehyde cycloaddition reactions.

34 preformed 5-membered rings, based mainly on cycloaddition reactions.

35 ic questions regarding ketene-alkene [2 + 2] cycloaddition reactions.

36 which is faster than recent strain-promoted cycloaddition reactions.

37 eactions, and intermolecular [2 + 2 + 1 + 1] cycloaddition reactions.

38 versatility in both Diels-Alder and dipolar cycloaddition reactions.

39 gration of propargylic esters in a number of cycloaddition reactions.

40 s hitherto unknown during phosphine-promoted cycloaddition reactions.

41 substitution, thiol addition, or 1,3-dipolar cycloaddition reactions.

42 eactions afford cycloheptadienes via [4 + 3] cycloaddition reactions.

43 esityl oxide, do not undergo selective [2+2] cycloaddition reactions.

44 incorporation of probes via copper-mediated cycloaddition reactions.

45 s of this type were made via copper-mediated cycloaddition reactions.

46 products of synthetic and biosynthetic [4+2] cycloaddition reactions.

47 Alder and 1,3-dipolar tritylazomethine ylide cycloaddition reactions.

48 oducts were all obtained from simple [2 + 2] cycloaddition reactions.

49 a key role in determining the outcome of the cycloaddition reactions.

50 ving as electron-rich dienophiles in [4 + 2] cycloaddition reactions.

51 for subsequent copper-catalyzed azide-alkyne cycloaddition reactions.

52 t of its reactivity in Michael, radical, and cycloaddition reactions.

53 embered anionic heterocycles in formal [2+2] cycloaddition reactions.

54 n, ylide formation, Wolff rearrangement, and cycloaddition reactions.

55 o be used in tandem with other bioorthogonal cycloaddition reactions.

56 DM2 RNA dysfunction by a Huisgen 1,3-dipolar cycloaddition reaction, a variant of click chemistry.

57 serve as conduits to three-component [4 + 2] cycloaddition reactions accessing structurally and stere

58 hiral catalyst that effectively promotes the cycloaddition reaction and can be recycled (five cycles)

59 mixture at 60 degrees C for 6 h promoted the cycloaddition reaction and provided the desired product

60 This takes place via a cycloaddition reaction and subsequent fragmentation to f

61 pha,beta-unsaturated ketone to undergo [1+4] cycloaddition reactions and afford [Cp*(IXy)(H)2 RuSn(ka

62 rated in this fashion are highly reactive in cycloaddition reactions and display a scope of reactivit

63 The cycloaddition reactions and noncovalent pi interactions

64 ly regio- and stereoselective intramolecular cycloaddition reactions and organometallic additions to

65 red by way of a multistep synthesis based on cycloaddition reactions and Pd chemistry.

66 of independent (nontethered) bis-1,3-dipolar cycloaddition reactions and the characterization of 5 ne

67 (ii) the thermal stability toward the retro-cycloaddition reaction, and (iii) the effect of changing

68 more fully understand the mechanism of this cycloaddition reaction, and to guide efforts to extend i

69 dition reactions, intermolecular [2 + 2 + 2] cycloaddition reactions, and intermolecular [2 + 2 + 1 +

70 Cycloaddition reactions are among the most important too

71 Azadiene cycloaddition reactions are used to construct heterocycl

72 pha-Hydroxy-gamma-pyrone-based oxidopyrylium cycloaddition reactions are useful methods for accessing

73 itution and the participation of corroles in cycloaddition reactions as 2pi or 4pi components (coveri

74 und at 0 degrees C resulted in a retro [4+2] cycloaddition reaction, as observed by gel permeation ch

75 Baylis-Hillman, imino-ene, Mannich-type, and cycloaddition reactions, as well as hydrogenation and re

76 The catalysis of in situ azide-alkyne cycloaddition reactions at a dynamic subunit interface f

77 s electron density at Cu(I) that assists the cycloaddition reaction, (b) the three-armed motif bearin

78 as assembled by an internal azomethine ylide cycloaddition reaction based on silver ion-assisted intr

79 of different synthetic transformations, with cycloaddition reactions being the most common.

80 the regio- and enantioselective 1,3-dipolar cycloaddition reaction between 4-acetamidobenzonitrile N

81 fied TNA nucleosides (2'-NH2-TNA) based on a cycloaddition reaction between a glycal and an azodicarb

82 ates its own synthesis through a 1,3-dipolar cycloaddition reaction between a nitrone component, equi

83 The copper-catalyzed cycloaddition reaction between a propargyl-appended euro

84 esized through a ruthenium-catalyzed [2+2+2] cycloaddition reaction between a propargylic alcohol and

85 and led to the discovery of a Paterno-Buchi cycloaddition reaction between acetone and an angular me

86 The formal [8 + 2] cycloaddition reaction between alkynyl Fischer carbene c

87 A [3 + 2] cycloaddition reaction between alkynyldimethylsilyl ethe

88 ted monolayers were formed through a Huisgen cycloaddition reaction between an alpha-helical peptide

89 pyridyl-modified nucleotides, accelerates a cycloaddition reaction between anthracene and maleimide

90 We describe an unusual net [2+2] cycloaddition reaction between boron alkylidenes and una

91 The cycloaddition reaction between building-block azides and

92 Cl(4) was found to catalyze a formal [3 + 2] cycloaddition reaction between C(3)-substituted indoles

93 e of the decarbonylative [4 + 2] Diels-Alder cycloaddition reaction between ethynyl and tetraphenylcy

94 ilizing a regioselective copper(I)-catalyzed cycloaddition reaction between in situ generated nitrile

95 A novel organocatalytic asymmetric [3+2] cycloaddition reaction between methyleneindolinones and

96 perimental and computational studies for the cycloaddition reaction between N-(3-pyridyl)aldimines an

97 crystal by a photochemically induced [4 + 4] cycloaddition reaction between neighboring monomers in w

98 An enantioselective [3 + 2] cycloaddition reaction between nitrile oxides and transi

99 Theory indicates that a pi2 + pi2 + sigma2 cycloaddition reaction between SO3 and HCOOH is a plausi

100 the photo- and cobalt-catalyzed [2 + 2 + 2] cycloaddition reaction between the corresponding naphthy

101 al resolution in cells via a Cu(I)-catalyzed cycloaddition reaction between the terminal alkyne group

102 It is found that the AlCl3-catalyzed [4 + 2]-cycloaddition reaction between these dienes and N-methyl

103 id synthesis utilized a novel hetero-[2 + 2]-cycloaddition reaction between two aryl ynol ethers to y

104 th 1 and 2 are effective catalysts for [3+2] cycloaddition reactions between alkynes and azides (i.e.

105 The potential cycloaddition reactions between cyclopentadiene and cycl

106 copper(I) complexes catalyzed multicomponent cycloaddition reactions between diazo compounds, pyridin

107 (F)CF2CF2-)(PPh2Me) in the first examples of cycloaddition reactions between perfluoroalkenes and met

108 the INI unit were synthesized by 1,3-dipolar cycloaddition reactions between pyrido[2,1-a]isoindole (

109 It is found that the [4 + 2]-cycloaddition reactions between these cyclophanes and te

110 e first general method for catalysis of such cycloaddition reactions by using solvent hydrogen bondin

111 hree-step sequence involving the Diels-Alder cycloaddition reaction can be employed as advanced inter

112 cular, we show that the azide-alkyne Huisgen cycloaddition reaction catalyzed by copper(I) is fully c

113 reaction sequence proceeds via a Diels-Alder cycloaddition reaction catalyzed by dimethylaluminum chl

114 zetidinone and a variety of diynes undergo a cycloaddition reaction catalyzed by Ni/IPr to give dihyd

115 cent azide through a Cu(I)-catalyzed [3 + 2] cycloaddition reaction ("click" chemistry).

116 5-shift precursor, a copper-mediated dipolar cycloaddition reaction ("click") with azide partners is

117 A single pot dipolar cycloaddition reaction/Cope elimination sequence was dev

118 These cycloaddition reactions create replicators trans-T(p) an

119 ated to perform Cu(I)-catalyzed azide-alkyne cycloaddition reactions (CuAAC).

120 e effective two-photon cross-section for the cycloaddition reaction determined to be 3.8 GM.

121 s show why the catalytic, asymmetric (4 + 3)-cycloaddition reaction developed in the Harmata laborato

122 performing Sonogashira coupling and Huisgen cycloaddition reactions directly to the CTV core for the

123 several constrained agonists generated by a cycloaddition reaction displayed high selectivity (223-

124 to CuPRT via a Cu(I)-catalyzed azide-alkyne cycloaddition reaction failed as a result of dethreading

125 -membered ring trans-alkenes underwent [4+2] cycloaddition reactions faster than a trans-cyclooctene.

126 ed in good yields presumably through [4 + 2] cycloaddition reactions followed by hydrogen migrations.

127 echanistic insights into the thermal [3 + 2] cycloaddition reaction for such substrates, they were al

128 ngles of the reacting centers to prevent the cycloaddition reaction from occurring.

129 les are found to proceed through retro-(3+2)-cycloaddition reactions, generating the experimentally r

130 This novel higher-order cycloaddition reaction has also been successfully applie

131 metal-free highly diastereoselctive [3 + 2] cycloaddition reaction has been developed between N-phen

132 The copper-catalyzed azide-alkyne cycloaddition reaction has been used for the template-me

133 the boron substituted cycloadducts of those cycloaddition reactions have been used in cross coupling

134 able linker via Cu(I)-catalyzed azide-alkyne cycloaddition reaction; (iii) enrichment of the biotin-t

135 The intramolecular Diels-Alder cycloaddition reaction (IMDAF) of several N-phenylsulfon

136 supplement to the Cu-catalyzed azide-alkyne cycloaddition reaction in "click" chemistry.

137 reacts with the C(001) surface via a [2 + 2] cycloaddition reaction in a manner similar to nonpolar m

138 spectively, which were used in a Diels-Alder cycloaddition reaction in the synthesis of the correspon

139 the power of the intramolecular hetero [4+2] cycloaddition reaction in the total synthesis of complex

140 reference to an intramolecular Type-II 4 + 3 cycloaddition reaction in trifluoroethanol and hexafluor

141 The Diels-Alder reaction is a [4+2] cycloaddition reaction in which a cyclohexene ring is fo

142 olves stereoselective tandem [4 + 2]/[4 + 2] cycloaddition reactions in a domino mode.

143 onventional chemical approaches to achieving cycloaddition reactions in synthesis and uncover enantio

144 This study and analogous 1,3-dipolar cycloaddition reactions, in which zwitterions have been

145 The cycloaddition reactions include several bromo-substitute

146 tions, other intermolecular and transannular cycloaddition reactions included intermolecular Pauson-K

147 on-metal-free applications of arynes include cycloaddition reactions, insertion reactions and multico

148 Pauson-Khand reactions, transannular [4 + 2] cycloaddition reactions, intermolecular [2 + 2 + 2] cycl

149 een successfully synthesized through [4 + 2] cycloaddition reaction involving in situ arynes as dieno

150 During this study, Diels-Alder cycloaddition reactions involving 1,3-disubstituted none

151 ies of multicomponent [4 + 2]/[3 + 2] domino cycloaddition reactions involving nitroindole derivative

152 plets (ca. 5 mum diameter) and find that the cycloaddition reaction is accelerated even further (by a

153 The [4+2] cycloaddition reaction is an enabling transformation in

154 The diastereochemical outcome of the cycloaddition reaction is marked by a significant solven

155 This formal [4 + 3]-cycloaddition reaction is proposed to proceed via a step

156 We find that the precursor of this [2 + 2] cycloaddition reaction is the singlet doubly pi(2)pi*(2)

157 nyl ylide formation-enantioselective [3 + 2]-cycloaddition reactions is described.

158 Photoinduced [2+2] and [4+4] cycloaddition reactions, isomerization, electron transfe

159 exes are employed as catalysts for a [4 + 2] cycloaddition reaction leading to alkylidenecyclohexenes

160 lves at room temperature via a retro-[2 + 2]-cycloaddition reaction, leading to an original NHC-stabi

161 polarophiles in a 1,3-dipolar intramolecular cycloaddition reaction, leading to the corresponding iso

162 All cycloaddition reactions occur at room temperature and em

163 f the in situ protein-templated azide-alkyne cycloaddition reaction occurring at a localized, sequest

164 repared by a one-pot three-component [3 + 2] cycloaddition reaction of (E)-3-arylidene-1-phenyl-pyrro

165 , obtained by a Rh(II)-catalyzed 1,3-dipolar cycloaddition reaction of 1-(2-benzenesulfonyl-2-diazoac

166 or the formation of C(60) involves a [2 + 2] cycloaddition reaction of a cyclopolyyne to form a tetra

167 The technique illustrated here involves a cycloaddition reaction of a lactone with the in situ-gen

168 a Ru- or Rh-catalyzed [5 + 2] intramolecular cycloaddition reaction of an alkyne and a vinylcycloprop

169 ynthesis consists of an intramolecular [3+2]-cycloaddition reaction of an alpha-diazo indoloamide whi

170 The key step is an intramolecular [3 + 2]-cycloaddition reaction of an in situ generated azomethin

171 sing the Cu(I)-catalyzed Huisgen 1,3-dipolar cycloaddition reaction of azides and alkynes.

172 The 1,3-dipolar cycloaddition reaction of boron azides with alkynes has

173 The asymmetric 1,3-dipolar cycloaddition reaction of C,N-cyclic azomethine imines w

174 ion, transphosphorylation, and a 1,3-dipolar cycloaddition reaction of diazoalkylphosphonates in a pe

175 ure, we found that the rate constant for the cycloaddition reaction of DIFBO with an azide exceeds th

176 ater, is a regioselective hetero-Diels-Alder cycloaddition reaction of enol ethers to 4-phosphinyl or

177 The cycloaddition reaction of enynes and aldehydes afforded

178 No beta-hydrogen elimination was observed in cycloaddition reaction of enynes and ketones.

179 [Au]-catalyzed [3 + 3] cycloaddition reaction of enynones/enynals with azides,

180 d CHO-(Fl)(n)-CHO precursors via 1,3-dipolar cycloaddition reaction of in situ generated azomethine y

181 s the formal inverse electron demand [4 + 2] cycloaddition reaction of in situ-generated cationic ary

182 A 1,3-dipolar cycloaddition reaction of nonstabilized azomethine ylide

183 iiodide ions, which collectively mediate the cycloaddition reaction of organic azide and terminal alk

184 The scandium triflate-catalyzed cycloaddition reaction of polycyclic 1,2-dithiolethiones

185 The gold-catalyzed [3+3]-cycloaddition reaction of propargyl esters and azomethin

186 We report a formal [4+2] cycloaddition reaction of styrenes under visible-light c

187 A regioselective dearomative aza-(3 + 2) cycloaddition reaction of substituted indoles with alpha

188 However, the intramolecular [2 + 2] cycloaddition reaction of the benzannulated enyne-allene

189 Finally, a base-mediated formal cycloaddition reaction of tryptamine-derived Zincke alde

190 as accomplished through mono- and bis[3 + 2]-cycloaddition reactions of (2E,4E)-ethyl 5-(phenylsulfon

191 The question of whether or not the cycloaddition reactions of (di)tetrelenes follow the Woo

192 l ylide formation-intramolecular 1,3-dipolar cycloaddition reactions of 2-diazo-3,6-diketoesters show

193 ng the first systematic study of the [4 + 2] cycloaddition reactions of 3,6-diacyl-1,2,4,5-tetrazines

194 ffolds is presented, which exploits multiple cycloaddition reactions of a carbohydrate-derived nitron

195 AuSbF(6) is shown to mediate [2+2+2] cycloaddition reactions of alkynes.

196 an be achieved for either [4 + 2] or [4 + 3] cycloaddition reactions of allene-dienes catalyzed by go

197 Intramolecular [2 + 2] cycloaddition reactions of allene-ynes offer a quick and

198 A range of phosphine-catalyzed cycloaddition reactions of allenic ketones have been stu

199 dines has been developed via the 1,3-dipolar cycloaddition reactions of arynes with N-oxides.

200 r the realization of switchable catalysis in cycloaddition reactions of CO2 with epoxides.

201 tene substrates are derived from acylnitroso cycloaddition reactions of cyclopentadiene, followed by

202 Here we report that reductive [2+2]-cycloaddition reactions of diphenylacetylene and (2,2-di

203 ino esters are formed catalytically by [3+2] cycloaddition reactions of enecarbamates with electrophi

204 Highly selective divergent cycloaddition reactions of enoldiazo compounds and alpha

205 This comprehensive review on cycloaddition reactions of enoldiazo compounds, with emp

206 Remarkably, the cycloaddition reactions of free cyclopentyne are not dif

207 , synthesis of small-ring compounds, (2 + 2) cycloaddition reactions of halogenated ethylenes, assist

208 vealed a formally forbidden pathway in [2+2] cycloaddition reactions of maleimide moieties.

209 The stepwise nature of the [3 + 2] cycloaddition reactions of N-metalated azomethine ylides

210 re investigated and paralleled with selected cycloaddition reactions of nitro- and nitrosobenzene wit

211 1,3-Dipolar cycloaddition reactions of nitrones with alpha,beta-unsa

212 The mechanism of cycloaddition reactions of nitrones with isocyanates has

213 Both complexes also promote the cycloaddition reactions of organic azides with internal

214 The energetics of the Diels-Alder cycloaddition reactions of several 1,3-dienes with acryl

215 le core through highly regioselective alkyne cycloaddition reactions of sydnones.

216 etailed account regarding formal aza-[3 + 3] cycloaddition reactions of tetronamides with alpha,beta-

217 was produced via two intramolecular [2 + 2] cycloaddition reactions of the benzannulated enyne-allen

218 ficient and stereoselective Pt(IV)-catalyzed cycloaddition reactions of the corresponding quinone met

219 catalyzed highly diastereoselective (3 + 2) cycloaddition reactions of the synthesized spiro-cyclopr

220 molecular architectures through higher order cycloaddition reactions of tropones.

221 sensitivity by using a copper (I)-catalyzed cycloaddition reaction (often referred to as "click" che

222 cation of intramolecular 1,3-dipolar nitrone cycloaddition reaction on carbohydrate-derived precursor

223 ent complexation is much more favorable than cycloaddition reactions on interior bonds of graphene.

224 This formal cycloaddition reaction or annulation reaction is synthet

225 and 2 do not undergo heat- or light-induced cycloaddition reactions or Friedel-Crafts acylations.

226 rs for the biosynthetic relevance of [4 + 2] cycloaddition reactions, other cycloadditions have recei

227 On the basis of the strain-promoted [3 + 2] cycloaddition reaction performed at ambient temperature,

228 u through an intramolecular tetrazole-alkene cycloaddition reaction ("photoclick chemistry").

229 The IMDA cycloaddition reactions proceed with excellent stereosel

230 lectivity was observed in the intramolecular cycloaddition reaction producing 5 to 7-membered rings.

231 sess the viability of nitrone-alkene (3 + 2) cycloaddition reactions proposed to occur during the bio

232 The examination of the key cycloaddition reaction revealed that the inherent 1,2,3-

233 s and 1,4,2-dioxazolidines revealed that the cycloaddition reaction takes place through a concerted m

234 we report an unprecedented overall 4pi + 2pi cycloaddition reaction that generates a different, highl

235 , the result is a sequential [5 + 2]/[4 + 2] cycloaddition reaction that provides sp(3)-rich products

236 des have proven to be versatile reagents for cycloaddition reactions that allow highly efficient cons

237 idized to Cu(I) , catalyzes the azide-alkyne cycloaddition reactions that result in the efficient syn

238 n other transformations, such as 1,3-dipolar cycloaddition reactions, that provide these products.

239 A DFT study explains the polar nature of the cycloaddition reaction, the observed reactivity and sugg

240 In the classic Diels-Alder [4 + 2] cycloaddition reaction, the overall degree of unsaturati

241 ymers, which are generated via retro-[4 + 2] cycloaddition reactions, the first-order kinetic coeffic

242 spite the widespread use of copper-catalyzed cycloaddition reactions, the mechanism of these processe

243 For these cycloaddition reactions, the product endo:exo ratios, wh

244 ed as an isomer formed via an internal 2 + 2 cycloaddition reaction; the triplet lifetime (8.4 +/- 0.

245 esponding mechanically activated retro [4+2] cycloaddition reaction to be measured.

246 .1]-5-undecen-9-one; and (iii) a Diels-Alder cycloaddition reaction to construct the third ring found

247 we report the use of the Huisgen 1,3-dipolar cycloaddition reaction to generate triazole-stapled BCL9

248 ped by an alkene dipolarophile via a [2 + 3] cycloaddition reaction to give the corresponding isooxaz

249 plication of the ruthenium-catalyzed [2+2+2] cycloaddition reaction to highly substituted indene syst

250 e reacting pi-systems and allows the desired cycloaddition reaction to occur.

251 ntioselective azomethine ylide (1,3)-dipolar cycloaddition reaction to set the absolute and relative

252 tions via a UV-irradiation-initiated [2 + 2] cycloaddition reaction to yield the corresponding cyclob

253 ites-that react pairwise through 1,3-dipolar cycloaddition reactions to create a network of four leng

254 n regio- and stereo-selective intramolecular cycloaddition reactions to give adducts, for example, 15

255 The regio- and stereoselective control of cycloaddition reactions to polyconjugated systems has be

256 also underwent strain-promoted alkyne-azido cycloaddition reactions to provide access to fluorescent

257 anes were shown to undergo efficient [3 + 2] cycloaddition reactions to provide azabicyclo[n.2.1]alka

258 zido fluorophore, via copper catalyzed [3+2] cycloaddition reactions, to produce the corresponding tr

259 e use of tandem, cobalt-mediated [2 + 2 + 2] cycloaddition reactions, two synthetic routes have been

260 hat underwent exquisite intramolecular [4+2] cycloaddition reactions under thermal conditions to prov

261 The alkene undergoes the cycloaddition reaction via a 1D coordination polymer to

262 ggering of the metal-free azide to acetylene cycloaddition reaction was achieved by masking the tripl

263 isoxazoline complex as the catalyst, a [3+3]-cycloaddition reaction was achieved with excellent yield

264 A Diels-Alder cycloaddition reaction was carried out in the inner cavi

265 The scope of the cycloaddition reaction was expanded to include the coupl

266 oles formed via strain-promoted azide-alkyne cycloaddition reactions was investigated by density func

267 Brummond-Chen thermal intramolecular (2 + 2)-cycloaddition reactions were examined using density func

268 The cycloaddition reactions were expectedly regioselective,

269 Under optimized conditions, the cycloaddition reactions were highly diastereo- and regio

270 Cycloaddition reactions were observed to occur with mode

271 Stepwise pathways for these transannular cycloaddition reactions were shown to predominate.

272 C) and featured a novel [2 + 2] photoinduced cycloaddition reaction which occurred with complete regi

273 onjugated aromatic system would be broken by cycloaddition reactions, which are therefore rarely appl

274 Cu(I) significantly accelerate azide-alkyne cycloaddition reactions while Bipy-containing SCPNs liga

275 functionalized by the four reagents through cycloaddition reactions, while the interior regions cann

276 cially available amide base and trapped in a cycloaddition reaction with furan in moderate to good yi

277 Br2-induced chelation-controlled 1,3-dipolar cycloaddition reaction with N-hydroxyphenylglycinol as a

278 alyzed dearomative trimethylenemethane [3+2] cycloaddition reaction with simple nitroarene substrates

279 A subsequent Sharpless-Huisgen [3 + 2] cycloaddition reaction with the appended alkyne allows f

280 Cross-linking occurs through a [2+2] cycloaddition reaction with the opposing thymidine, 2'-d

281 y reported asymmetric Diels-Alder and Ficini cycloaddition reactions with 2,3-disubstituted butadiene

282 reversible, recognition-mediated 1,3-dipolar cycloaddition reactions with a stoppering maleimide grou

283 These 2pi-partners undergo 1,3-dipolar cycloaddition reactions with a wide range of organic azi

284 lcarbene intermediate that undergoes [4 + 2]-cycloaddition reactions with activated alkenes.

285 at N-malonylimidates undergo catalyzed [3+2] cycloaddition reactions with aldehydes, imines, and acti

286 Cycloaddition reactions with alkenes bearing chiral auxi

287 ive precursors to a range of pyrazoles after cycloaddition reactions with alkynes.

288 ds both copper-catalyzed and strain-promoted cycloaddition reactions with alkynes.

289 s have been sought as substrates for Cu-free cycloaddition reactions with azides in biological system

290 )-ligated dirhodium carboxylates for [3 + 3]-cycloaddition reactions with both acyclic and cyclic nit

291 roenamines and their use in Zn(II)-catalyzed cycloaddition reactions with commercial alpha,beta-unsat

292 This species undergoes [2+2] cycloaddition reactions with diphenylketene and bis(2,6-

293 nters can be generated via completed (3 + 2) cycloaddition reactions with full regio- and diastereoco

294 ntities via N-chlorosulfonylisocyanate (CSI) cycloaddition reactions with functionalized alkenes; pre

295 rans linked by a rigid tether undergo tandem cycloaddition reactions with high stereoselectivity.

296 prepared in situ, is exemplified by dipolar cycloaddition reactions with nitrones to give highly sub

297 o react readily in [n + 2] (n = 6, 4, 2 + 2) cycloaddition reactions with norbornadiene and quadricyc

298 uranoside were also subjected to 1,3-dipolar cycloaddition reactions with six azidopyranosides under

299 shown to undergo characteristic ketene [2+2] cycloaddition reactions with tethered alkenes and extern

300 ognition site can participate in 1,3-dipolar cycloaddition reactions with two maleimides that differ