ライフサイエンスコーパス: cyclopropanation

1 developed in a 96-well format for asymmetric cyclopropanation.

2 full spectrum of known carbenoid pathways to cyclopropanation.

3 -diazopropanoate, and cyclic internal alkene cyclopropanation.

4 ve transformations including epoxidation and cyclopropanation.

5 site(s) of unsaturation, methyl branching or cyclopropanation.

6 Cope rearrangement while the other undergoes cyclopropanation.

7 the pendant allyl group, in competition with cyclopropanation.

8 oducts being either direct C-H activation or cyclopropanation.

9 tly used with catalysis for coupling and for cyclopropanation.

10 lL, were potential candidates for catalyzing cyclopropanation.

11 mary driver of enantioselectivity in styrene cyclopropanation.

12 s and subsequent reactions that give rise to cyclopropanation.

13 form the intermediate undergoing the second cyclopropanation.

14 or-type diazo reagents for asymmetric olefin cyclopropanation.

15 ive in non-natural carbenoid-mediated olefin cyclopropanation.

16 e operative during cytochrome P450-catalyzed cyclopropanation.

17 sidue to create an ArM that catalyses olefin cyclopropanation.

18 pyl ring was installed using the Kulinkovich cyclopropanation.

19 ext of both inter- and intramolecular olefin cyclopropanation.

20 ich is responsible for the initiation of the cyclopropanation.

21 ghly diastereoselective and enantioselective cyclopropanations.

22 ups, which undergo highly diastereoselective cyclopropanations.

23 re suitable substrates for iminium-activated cyclopropanations.

24 The competition between bimolecular cyclopropanation, 1,2-hydrogen migration, and internal c

25 culations and the Davies-Singleton model for cyclopropanation, a model for asymmetric induction is pr

26 matic and aliphatic C-H insertion as well as cyclopropanation across a tethered pi-bond.

27 astic reduction in methoxymycolic acid trans-cyclopropanation, activities usually associated with the

28 Cyclopropanation activity is highly dependent on the ele

29 Cyclopropanation and 1,3-dipolar cycloaddition reactions

30 Both cyclopropanation and 1,4-carboborated products were empl

31 etion was the loss of ketomycolic acid trans-cyclopropanation and a drastic reduction in methoxymycol

32 e either without cyclopropanation or without cyclopropanation and any oxygenated mycolates.

33 As demonstrated with cyclopropanation and aziridination as model reactions, t

34 esponding metamorphosis of CPPase to FPPase, cyclopropanation and branching activities were lost upon

35 lacement of the final alpha-helix, whereupon cyclopropanation and branching activity competed with ch

36 This intermediate performs stoichiometric cyclopropanation and C-H functionalization reactions to

37 The mechanism of rhodium-catalyzed cyclopropanation and C-H functionalization reactions wit

38 nsistent with the much higher selectivity in cyclopropanation and C-H insertion chemistry compared to

39 of Rh(II) uncovered new catalysts capable of cyclopropanation and C-H insertion.

40 xceptional enantiocontrol for intramolecular cyclopropanation and carbon-hydrogen insertion reactions

41 eps included rhodium-mediated intramolecular cyclopropanation and enzymatic resolution of the racemic

42 Surprisingly, the cyclopropanation and epoxidation reactions were discover

43 h 1,6-enynes is shown to proceed via initial cyclopropanation and formal 1,1-carboboration.

44 es have been inert, or shown to favor olefin cyclopropanation and heteroatom-hydrogen insertion.

45 sferases, is required for alpha-mycolic acid cyclopropanation and lethal chronic persistent M. tuberc

46 When cyclopropanation and O-H insertion reactions are carried

47 first example of biocatalytic intramolecular cyclopropanation and provides an attractive strategy for

48 ascade sequence consisting of intramolecular cyclopropanation and rearrangement takes place, leading

49 tions, marking the first examples where both cyclopropanation and ring expansion of arenes were rende

50 gated utilizing a sequence of chemoselective cyclopropanation and stereoselective acid-catalyzed rear

51 onization strategy, followed by an efficient cyclopropanation and subsequent ring expansion to constr

52 tion reactions to generate new heterocycles, cyclopropanation and subsequent ring expansions, ylide f

53 Both the cyclopropanation and subsequent ring-opening are shown t

54 for achieving the highest selectivity in the cyclopropanation and the combined C-H activation/Cope re

55 be utilized to achieve formal intermolecular cyclopropanations and to access cyclopropanol derivative

56 alyst (which promotes C(sp3)-H insertion and cyclopropanation) and a copper catalyst (which catalyzes

57 to be active toward carbene group transfer (cyclopropanation), and silane addition to 3 leads to PhS

58 ations including hydrogenation, epoxidation, cyclopropanation, and aziridination reactions.

59 uble asymmetric induction for C-H insertion, cyclopropanation, and hetero-Diels-Alder cycloaddition a

60 by lipid modifications including elongation, cyclopropanation, and increased cardiolipin formation.

61 an be applied in transannulation, insertion, cyclopropanation, and many other transformations.

62 using a highly diastereoselective Nishiyama cyclopropanation, and the outer hydroxycyclopropyl ring

63 conduct esterifications and metal-catalyzed cyclopropanations, and results show that methyl ester fo

64 Enantioselectivities for cyclopropanation are dependent on the catalyst ligands i

65 Enzymes that catalyze chain elongation and cyclopropanation are well studied, whereas those that ca

66 ared using an efficient nitroalkane-mediated cyclopropanation as a key step.

67 Using olefin cyclopropanation as an example, it was demonstrated that

68 are very effective catalysts for asymmetric cyclopropanation between methyl phenyldiazoacetate and s

69 The stereoselectivity of these cyclopropanation biocatalysts complements that of trans-

70 les the rapid development of myoglobin-based cyclopropanation biocatalysts featuring dramatically enh

71 by deuterium alters the distribution of the cyclopropanation, branching, and cyclobutanation product

72 Four reactions--chain elongation, cyclopropanation, branching, and cyclobutanation--are us

73 mental coupling reactions: chain elongation, cyclopropanation, branching, and cyclobutanation.

74 (regular) carbon skeletons, while those from cyclopropanation, branching, or cyclobutanation have non

75 N-O bond cleavage, oxidation, intermolecular cyclopropanation, Bucherer-Bergs reaction, hydrolysis, a

76 s promising systems for promoting asymmetric cyclopropanations, but variants featuring predictable, c

77 gand enables enantioselective intramolecular cyclopropanation by a reactive alpha-oxo gold carbene in

78 n the underlying mechanism of metalloradical cyclopropanation by cobalt(II) complexes of porphyrins.

79 Although cyclopropanation by nickel catalysts is well established

80 mediated reactions of diazoketones involving cyclopropanation, C-H insertion, and aromatic C-C double

81 tivity of iron catalysts in promoting alkene cyclopropanations, C-H and X-H (X = N, O, S, Se, Si, Sn,

82 If this pathway is sterically blocked, cyclopropanation can occur with initial bond formation a

83 Results from cyclopropanation, carbon-hydrogen insertion, and oxonium

84 ioselectivities using a chiral (Salen)Ru(II) cyclopropanation catalyst in the key asymmetry-induction

85 ion) and chrysanthemyl diphosphate synthase (cyclopropanation) catalyze all four of the known isopren

86 Complete lack of cyclopropanation confers severe attenuation during the f

87 has been prepared through a series of tandem cyclopropanation-Cope and translactonization-Cope rearra

88 Recently, we reported a convergent cyclopropanation-Cope approach to the core of ineleganol

89 system has enriched our understanding of the cyclopropanation-Cope rearrangement sequence.

90 The tandem cyclopropanation/Cope rearrangement between bicyclic die

91 regioisomers of those formed from the tandem cyclopropanation/Cope rearrangement reaction of vinylcar

92 is generally considered to occur by a tandem cyclopropanation/Cope rearrangement, although evidence i

93 The [3 + 4] cycloaddition occurs by a tandem cyclopropanation/Cope rearrangement.

94 y enantioselective cyclopropanations, tandem cyclopropanation/Cope rearrangements and a combined C-H

95 process proceeding by cis-diastereoselective cyclopropanation, cycloisomerization, and, finally, annu

96 Successful transformations include cyclopropanation, cyclopropenation, and various X-H inse

97 elective CH, NH, and OH insertion reactions, cyclopropanation, cyclopropenation, sulfur ylide formati

98 nd epoxidizing reagents, undergoing multiple cyclopropanations, dihalocyclopropanations, or epoxidati

99 Loss of trans-cyclopropanation enhanced M. tuberculosis-induced macrop

100 n enzyme with corresponding sequences from a cyclopropanation enzyme.

101 t the reaction proceeds by a Michael/Michael/cyclopropanation/epimerization cascade in which size and

102 The reaction proceeds by a cyclopropanation followed by a Cope rearrangement of the

103 , we developed a Cu-catalyzed intramolecular cyclopropanation followed by a MgI(2)-induced fragmentat

104 ivation of the alkyne moiety, which triggers cyclopropanation, followed by carboboration.

105 sequence of Rh2(OAc)4 (0.33 mol %)-catalyzed cyclopropanation, followed by ester hydrolysis under epi

106 condensation and subsequent Corey-Chaykovsky cyclopropanation giving diastereomerically pure products

107 Cyclopropanation has been shown to play a role in Mycoba

108 ic functionality proceeded more quickly than cyclopropanation; however, it was not possible to effect

109 e construction of these molecules via olefin cyclopropanation in the presence of a diazoketone carben

110 cyanine catalyst capable of efficient olefin cyclopropanation in the presence of a living microorgani

111 selectivity, especially on enabling carbene cyclopropanation in the presence of various nucleophilic

112 metal catalysts and accelerate biocompatible cyclopropanation in vivo.

113 Cationic cyclopropanation involves the gamma-elimination at carbo

114 al mechanism for the Co(II)-catalyzed olefin cyclopropanation involving a unique alpha-metalloradical

115 radical mechanism of the Co(II)-based olefin cyclopropanation involving a- and y-metalloalkyl radical

116 A new method for cyclopropanation involving intramolecular methylene tran

117 Cyclopropanation is favored irrespective of the complex

118 olates are produced in the mmaA2 mutant, cis-cyclopropanation is impaired, leading to accumulation of

119 isingly indicate that the stereochemistry of cyclopropanation is of little consequence to the subsequ

120 Intermolecular cyclopropanation is selective over two competing intramo

121 Cyclopropanation is the exclusive outcome of reactions p

122 ns indicated that the net effect of mycolate cyclopropanation is to dampen host immunity.

123 tioselectivity in Rh(2)(S-DOSP)(4)-catalyzed cyclopropanations is presented.

124 the last step of the lipid modification, the cyclopropanation, is under stringent control.

125 hain elongation), chrysanthemyl diphosphate (cyclopropanation), lavandulyl diphosphate (branching), a

126 utagenesis and mechanistic studies support a cyclopropanation mechanism mediated by an electrophilic,

127 generation Grubbs catalyst or intramolecular cyclopropanation mediated by Rh2(OAc)4.

128 The cyclopropanation method notably requires the use of Mg(C

129 Cyclopropanation occurs at the double bond allylic to th

130 lbenzene is possible, but a competing double cyclopropanation occurs with these substrates.

131 zed in enantiopure form employing asymmetric cyclopropanation of (E)- and (Z)-allylic alcohols as the

132 s, readily available via the stereoselective cyclopropanation of 1,2,3,4-tetrahydropyridine-4-ols, pr

133 Cyclopropanation of 11 with trimethylsulfoxonium ylide,

134 ter of solandelactones, (ii) a Simmons-Smith cyclopropanation of 80 directed by this alcohol, and (ii

135 witch and two malonate groups, in the double cyclopropanation of [60]fullerene.

136 ylsulfonyl hydrazones for asymmetric radical cyclopropanation of a broad range of alkenes, affording

137 ghly diastereoselective and enantioselective cyclopropanation of a broad range of styrene derivatives

138 ein engineering to permit the intramolecular cyclopropanation of a broad spectrum of homoallylic diaz

139 h an emphasis on the challenges posed by the cyclopropanation of a dihydropyrrole.

140 the enantioselectivity of this reaction, and cyclopropanation of a range of styrenes and donor-accept

141 synthesis is the Cu-catalyzed intramolecular cyclopropanation of a symmetrical indane-derived alpha-d

142 anic cosolvents, enabling the more efficient cyclopropanation of a water-insoluble substrate.

143 Additionally, kinetic studies of cyclopropanation of alkenes mediated by the dynamic Pd n

144 of the dirhodium tetracarboxylate catalyzed cyclopropanation of alkenes with both unsubstituted diaz

145 diimine (NDI) ligands catalyze the reductive cyclopropanation of alkenes with CH2 Cl2 as the methylen

146 active and selective catalyst for asymmetric cyclopropanation of alkenes with diazosulfones.

147 neral and efficient catalysts for asymmetric cyclopropanation of alkenes with ethyl diazoacetate (EDA

148 eneral and efficient catalysts for selective cyclopropanation of alkenes with ethyl diazoacetate (EDA

149 od has been developed for asymmetric radical cyclopropanation of alkenes with in situ-generated a-het

150 highly stereoselective rhodium(II)-catalyzed cyclopropanation of alkenes, alkynes, and allenes with d

151 tures include the first catalytic asymmetric cyclopropanation of allene, mediated by the dirhodium ca

152 of beta-amino ketones (15 examples) and the cyclopropanation of allylic amines (4 examples).

153 The process involves an intramolecular cyclopropanation of an alpha-imino rhodium(II) carbenoid

154 xazole and the other resulting in the formal cyclopropanation of an aromatic nitro compound.

155 eatures a diastereoselective acetal-directed cyclopropanation of an electron-deficient diene, a regio

156 bin-based catalyst capable of catalyzing the cyclopropanation of aryl-substituted olefins with cataly

157 tetramethylpiperidide-induced intramolecular cyclopropanation of derived unsaturated terminal epoxide

158 ternatively, 5 is prepared by selective mono-cyclopropanation of dibenzo[a,e]cyclooctadiyne (DIBOD).

159 Corey-Chaykovsky cyclopropanation of dimethyl acenaphthylene-1,2-dicarbox

160 are reviewed: cis-->trans isomerization and cyclopropanation of double bonds.

161 a Rh(III)-catalyzed C-H activation initiated cyclopropanation of electron deficient alkenes.

162 bsence of sterically encumbering groups, the cyclopropanation of furan occurs with initial bond forma

163 In this paper, we describe studies on the cyclopropanation of Michael acceptors with chiral sulfur

164 ) null mutant (Delta cmaA2) that lacks trans-cyclopropanation of mycolic acids.

165 This enzyme, BM3-Hstar, catalyzes the cyclopropanation of N,N-diethyl-2-phenylacrylamide with

166 The stereochemistry of the Kulinkovich cyclopropanation of nitriles with alkenes has been exami

167 These complexes serve as catalysts for cyclopropanation of olefins by ethyl diazoacetate, givin

168 quely effective in catalyzing the asymmetric cyclopropanation of olefins with alpha-stannylated (sily

169 opriate organozinc is very effective for the cyclopropanation of olefins.

170 JCI, Rao et al. examine the effect of trans-cyclopropanation of oxygenated mycolic acids attached to

171 new epsilon-specific PKC activators, made by cyclopropanation of polyunsaturated fatty acids, have be

172 The novel method involves the one-pot cyclopropanation of readily available dehydroamino acids

173 -2-enes has been developed by intramolecular cyclopropanation of readily available N-allyl enamine ca

174 The stoichiometric cyclopropanation of styrene by 8 in 1,4-dioxane is first

175 The cyclopropanation of styrene with methyl phenyldiazoaceta

176 e [Me2NN]Cu(eta2-ethylene) (2) catalyzes the cyclopropanation of styrene with N2CPh2 to give 1,1,2-tr

177 vity of Au(III) complexes in propargyl ester cyclopropanation of styrene.

178 alyze highly diastereo- and enantioselective cyclopropanation of styrenes from diazoester reagents vi

179 going further oxidation by the same oxidant, cyclopropanation of styrenes, engaging in a [3+2] cycloa

180 iscovery that heme proteins can catalyze the cyclopropanation of styrenyl olefins with high efficienc

181 hese results establish cmaA2-dependent trans-cyclopropanation of TDM as a suppressor of M. tuberculos

182 tcomes contrast with that of the Kulinkovich cyclopropanation of tertiary amides.

183 In situ cyclopropanation of the allylic silyl ether resulted in

184 furan ring is observed, and instead, double cyclopropanation of the benzene ring occurs.

185 Double cyclopropanation of the benzene ring was also observed i

186 cumbering substituents on the benzofuran, no cyclopropanation of the furan ring is observed, and inst

187 eement of the measured rate constant for the cyclopropanation of the imidazolidinone-derived iminium

188 s but has failed to reveal the origin of cis cyclopropanation of the oxygenated mycolates.

189 Cyclopropanation of the resulting bicyclic beta-lactone

190 forded a 3-oxocyclohepta[c]pyrrole formed by cyclopropanation of the rhodium carbenoid across the aro

191 factors discussed for the single and double cyclopropanation of this functionalized Michael-acceptor

192 also undergo highly efficient intramolecular cyclopropanation of tri- and tetrasubstituted alkenes.

193 catalyse the enantio- and diastereoselective cyclopropanation of unactivated olefins.

194 l of enantioselectivity was obtained for the cyclopropanation of unfunctionalized olefins when a chir

195 iding a valuable approach for the asymmetric cyclopropanation of unfunctionalized olefins.

196 ant competing reaction in the intramolecular cyclopropanation of unsaturated terminal epoxide 22.

197 thylpiperidide (LTMP)-induced intramolecular cyclopropanation of unsaturated terminal epoxides provid

198 The diastereoselective cyclopropanation of various alkenes with diazoacetate de

199 [1.1.1]propellane as a carbene precursor in cyclopropanations of a range of functionalized alkenes t

200 b featured diastereoselective intramolecular cyclopropanations of chiral allylic diazoacetates and a

201 cts from subsequent catalytic intermolecular cyclopropanations of the halodiazoesters and halodiazoph

202 Arene cyclopropanation offers a direct route to higher-order,

203 CurF specifically catalysed an unprecedented cyclopropanation on the chlorinated product of Cur ECH(2

204 acid, via Simmons-Smith-type stereoselective cyclopropanations on the respective fluoroallyl alcohols

205 nes can engage a tethered alkene into either cyclopropanation or metathesis, and a prototypical examp

206 ycloaddition step essential for inner-sphere cyclopropanation or olefin metathesis.

207 hat M. tuberculosis is viable either without cyclopropanation or without cyclopropanation and any oxy

208 of olefins is described through a sequential cyclopropanation/oxo-amination.

209 co-catalyst effectively suppressed undesired cyclopropanation pathways, which have previously been a

210 ds led to a more than twofold improvement in cyclopropanation performance (total TTN).

211 e synthesized via a two-step olefination and cyclopropanation procedure.

212 An intramolecular cyclopropanation proceeds with preservation of the olefi

213 An in situ alkoxide directed cyclopropanation proceeds with the formation of two more

214 A new ionic cyclopropanation process involving the addition of diazo

215 his is consistent with a highly asynchronous cyclopropanation process.

216 ia a putative carbenoid intermediate to form cyclopropanation product 3,3-dimethyl-5-phenylbicyclo[3.

217 n the aniline nitrogen nucleophile, either a cyclopropanation product or dimerization product was obt

218 The cyclopropanation products were obtained with excellent d

219 An alternative straightforward cyclopropanation protocol using a catalytic amount of 2,

220 In situ cyclopropanation provides syn-cis-disubstituted cyclopro

221 Because direct cyclopropanation provides syn-cyclopropyl alcohols, the

222 The key synthetic step is a cyclopropanation reaction between 2(5H)-furanone and a s

223 A new cyclopropanation reaction involving Calpha-Si bond inser

224 3Al mediated intramolecular epoxide opening, cyclopropanation reaction is described.

225 th zirconocene complex and alkyl zinc in the cyclopropanation reaction is proposed.

226 inverse electron-demand Diels-Alder (IEDDA)/cyclopropanation reaction of diazines was discovered by

227 27a-c)] have been synthesized by the Bingel cyclopropanation reaction of the respective exTTF-contai

228 Attempts to perform the same cyclopropanation reaction on (I(h)()) Sc(3)N@C(80) faile

229 -spirocyclopropylcytidine via an alternative cyclopropanation reaction starting from gamma-silyl tert

230 osition of the furan ring; in this case, the cyclopropanation reaction takes place on the opposite fa

231 A robust intramolecular cyclopropanation reaction was first performed on pyranop

232 -catalyzed intramolecular diastereoselective cyclopropanation reaction was used to set the second ste

233 was repurposed to catalyze this challenging cyclopropanation reaction, and its activity and stereose

234 y catalyzed diverse heterocyclizations and a cyclopropanation reaction, avoiding in all cases undesir

235 ers leading to a directed diastereoselective cyclopropanation reaction, providing products not access

236 hieved through a cobalt-catalyzed asymmetric cyclopropanation reaction.

237 exes were found to effectively catalyze both cyclopropanation reactions and C-H insertions as well as

238 Here, using olefin cyclopropanation reactions catalysed by dendrimer-encaps

239 1,3-dipolar cycloaddition and Bingel-Hirsch cyclopropanation reactions from suitably functionalized

240 panes by means of myoglobin-catalyzed olefin cyclopropanation reactions in the presence of 2-diazo-1,

241 However, one of the simplest cyclopropanation reactions involving the intramolecular

242 atalysts (NDI=naphthyridine-diimine) promote cyclopropanation reactions of 1,3-dienes using (Me(3) Si

243 Asymmetric cyclopropanation reactions of 3,3,3-trifluoro-2-diazopro

244 An investigation of the intramolecular cyclopropanation reactions of alpha-diazo-beta-ketonitri

245 s as versatile reagents for Corey-Chaykovsky cyclopropanation reactions of nitro styrenes.

246 It also catalyzes cyclopropanation reactions of these carbene precursors w

247 tones and pyrazoles, and palladium-catalyzed cyclopropanation reactions on laboratory scale.

248 or phytoene synthase, which catalyze c1'-2-3 cyclopropanation reactions similar to the CPPase reactio

249 ntrol differ from catalytic enantioselective cyclopropanation reactions using carbenes.

250 aprolactone to participate in intermolecular cyclopropanation reactions.

251 is reflected in the yield of gold-catalyzed cyclopropanation reactions.

252 st significant deficiencies of Simmons-Smith cyclopropanation reactions.

253 ne preferred in corresponding intermolecular cyclopropanation reactions.

254 f enantioselectivity in catalytic asymmetric cyclopropanation reactions.

255 reactivity in their ability to undergo arene cyclopropanation reactions; other similar acceptor-accep

256 ysts for executing asymmetric intramolecular cyclopropanations resulting in cyclopropane-fused gamma-

257 alytic activity of Pd nanoclusters in alkene cyclopropanation reveals that the atomically dynamic sur

258 methyl groups were attached by electrophilic cyclopropanation-ring opening.

259 that was terminated by reduction, an unusual cyclopropanation sequence, or trapping with H2O, dependi

260 Kinetic studies on the cyclopropanation show an induction period that is consis

261 he combination of a strategic intramolecular cyclopropanation step plus the acid-catalyzed isomerizat

262 olefin that determines whether metathesis or cyclopropanation takes place: a systematic survey using

263 Highly enantioselective cyclopropanations, tandem cyclopropanation/Cope rearrang

264 erview of the most important and widely used cyclopropanation techniques is presented, followed by a

265 reactions, the free energy of activation for cyclopropanation tends to decrease with the higher aggre

266 alkoxy enamines can be subjected to a tandem cyclopropanation to afford aminocyclopropyl carbinols wi

267 ively with the allylic alcohol, in directing cyclopropanation to control diastereoselectivity.

268 A dirhodium-catalyzed intramolecular cyclopropanation to form a bicyclo[1.1.0]butane is follo

269 ation of the allylic silyl ether resulted in cyclopropanation to form the anti-cyclopropyl silyl ethe

270 koxides, which are then subjected to in situ cyclopropanation to furnish vinyl cyclopropyl alcohols.

271 endant alkene is present, diastereoselective cyclopropanation to give 2-aminobicyclo[3.1.0]hexanes.

272 ess involves Pd(II)-catalyzed intramolecular cyclopropanation to produce vinylcyclopropanes and a sub

273 then subjected to in situ alkoxide-directed cyclopropanation to provide cyclopropyl alcohols.

274 dine (1.1 equiv), which is effective for the cyclopropanations, to NaOAc (4.0 equiv), the spontaneous

275 An analysis of computed cyclopropanation transition state parameters reveals sig

276 carbenoid, and an asynchronous but concerted cyclopropanation transition state.

277 he chiral catalyst engages in a very similar cyclopropanation transition-state geometry.

278 or intermolecular Rh(2)(S-PTTL)(4)-catalyzed cyclopropanation using alpha-alkyl-alpha-diazoesters.

279 elective, Rh(2)[(S)-PTTL](4)-catalyzed arene cyclopropanation using alpha-cyanodiazoacetates to affor

280 on-carbon bond formation, and intramolecular cyclopropanation using iodonium ylides.

281 ediated systems effectively induced stepwise cyclopropanation via carbocupration of alkenes.

282 a gold(I)-catalyzed alkyne hydroarylation, a cyclopropanation via formal [3 + 2] cycloaddition/nitrog

283 ed chlorohydrins also undergo intramolecular cyclopropanation via in situ epoxide formation.

284 This domino reaction involves the initial cyclopropanation via intramolecular ring-opening of gamm

285 e control over enantioselectivity in styrene cyclopropanation was achieved using synthetic L- and D-B

286 The asymmetric cyclopropanation was also demonstrated with the use of c

287 slow rate precluded the likelihood that the cyclopropanation was predominately occurring by a releas

288 evels of diastereocontrol to be imposed upon cyclopropanation, which the original catalyst lacks.

289 e stereochemical course of rhodium catalyzed cyclopropanations, which is likely also applicable to ot

290 ytic amyloids to facilitate enantioselective cyclopropanation with efficiencies that rival those of e

291 s, and on a preparative scale via benzofuran cyclopropanation with engineered myoglobins.

292 Cyclopropanation with ethyl diazoacetate was concluded t

293 their synthesis had been a poorly selective cyclopropanation with ethyl diazoacetate.

294 azo-beta-ethylcaprolactone in intermolecular cyclopropanation with styrene were unsuccessful.

295 d to preferentially react with alcohols over cyclopropanation with styrene, the reaction was speculat

296 ve catalyst for catalyzing asymmetric olefin cyclopropanation with the acceptor/acceptor-type diazo r

297 f mmaA1 from M. tuberculosis abolishes trans cyclopropanation without accumulation of trans-unsaturat

298 An intramolecular cyclopropanation would, in principle, provide a new rout

299 diazo precursors, which upon intramolecular cyclopropanation yielded a library of N-O containing cyc

300 as heteroatom-hydrogen insertion reactions, cyclopropanation, ylide formation, Wolff rearrangement,