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1 ngle ambimodal transition state, and a retro-Claisen rearrangement.
2 -catalyzed tandem Diels-Alder reaction/retro-Claisen rearrangement.
3 ain, and the other to prephenate by a facile Claisen rearrangement.
4 ether 23 by Petasis olefination, followed by Claisen rearrangement.
5 ond cleavage and C1---C9 bond formation in a Claisen rearrangement.
6  regioselectivity of the associated aromatic Claisen rearrangement.
7 col is described for an asymmetric allenoate Claisen rearrangement.
8 ermediate followed by the cationic 1,3-diaza-Claisen rearrangement.
9 very of the efficient catalysts for aromatic Claisen rearrangement.
10 a Chan-Lam-type allyloxylation followed by a Claisen rearrangement.
11 thways followed by either tautomerization or Claisen rearrangement.
12 um-catalyzed hydroformylation and an Ireland-Claisen rearrangement.
13 eterocyclic carbene catalyzed variant of the Claisen rearrangement.
14 tive conformation to spontaneously undergo a Claisen rearrangement.
15 t was combined with an Ireland ester enolate Claisen rearrangement.
16 lic isomerizations, allylic alkylations, and Claisen rearrangements.
17 tive [2,3]-Wittig-oxy-Cope and isomerization-Claisen rearrangements.
18 cumulenes are more reactive toward 1,3-diaza-Claisen rearrangements.
19  diastereoselective examples of archetypical Claisen rearrangements.
20 hinckdentine A, which features a dearomative Claisen rearrangement, a diastereocontrolled hydrogenati
21 roups, by a novel tandem double condensation/Claisen rearrangement, a gold(I)-catalyzed alkyne hydroa
22                               For the thiono-Claisen rearrangement, a notable structure-reactivity re
23  of a short-lived ketone intermediate in the Claisen rearrangement, a task that is challenged by a th
24                             In the competing Claisen rearrangement, a very large 18O isotope effect a
25  to the carbodiimide followed by a 1,3-diaza-Claisen rearrangement affords [9,5]- and [9,6]-bicyclic
26    The tandem, sequential use of the Ireland-Claisen rearrangement also proved suitable for chirality
27           The latter, when heated, undergo a Claisen rearrangement and form gamma,delta-unsaturated a
28 y crossover observed between the Eschenmoser-Claisen rearrangement and the thio-Claisen rearrangement
29 er-accelerated catalytic carboalumination, a Claisen rearrangement, and a nucleophilic carbonyl addit
30 nclude a Ru-catalyzed [5+2] cycloaddition, a Claisen rearrangement, and a ring expansion to construct
31 anic reactions, namely Diels-Alder reaction, Claisen rearrangement, and Cope-type hydroamination.
32 ion, substrate-directed epoxidation, Ireland-Claisen rearrangement, and diastereotopic group selectiv
33 anion formation strategy for asymmetric thio-Claisen rearrangement are documented.
34 ction and chirality transfer through Ireland-Claisen rearrangement as key steps.
35        A divergent synthesis with an Ireland-Claisen rearrangement as the key step allowed access to
36                                 Using an aza-Claisen rearrangement as the key step, 7-prenylindole ha
37  activation parameters are consistent with a Claisen rearrangement as the rate-limiting step.
38      Expansion of the scope of the 1,3-diaza-Claisen rearrangement beyond bridged-bicyclic tertiary a
39 d, and together they enhance the rate of the Claisen rearrangement by a factor of 58 over the backgro
40  or ruthenium hydride-mediated isomerization/Claisen rearrangement cascade and a ring-closing metathe
41 ic end product via the (SAM-dependent) retro-Claisen rearrangement catalysed by LepI.
42 d allylic alcohols via nucleophilic addition/Claisen rearrangement/cyclization reaction is described.
43 can then undergo a base-catalyzed domino aza-Claisen rearrangement/cyclization reaction sequence, sim
44                                 This Ireland-Claisen rearrangement delivered approximate 1:1 mixtures
45  rearrangement sequence, wherein the Ireland Claisen rearrangement effects ring contraction to a stra
46 ction with styryl bromide via O-styrylation, Claisen rearrangement, ene reaction, and O-alkylation oc
47                                         This Claisen rearrangement establishes the feasibility of DyK
48 d via two efficient through processes: (1) a Claisen rearrangement followed by a Ru(VIII)-catalyzed o
49 hat these reactions involve rate-determining Claisen rearrangements followed by subsequent reaction c
50 etone 16 has been prepared by using an oxaza-Claisen rearrangement, followed by nitrogen deprotection
51 mary of our most recent study using the thio-Claisen rearrangement for the synthesis of anti-beta-fun
52 d acid catalyzed enantioselective indole aza-Claisen rearrangement for the synthesis of chiral 3-amin
53 f a resonance stabilized DcA reaction with a Claisen rearrangement for the synthesis of multisubstitu
54 de, and diisopropylamine, via an ortho ester-Claisen rearrangement from a propargylic alcohol, or via
55 a link to the indole core is introduced by a Claisen rearrangement from the allylated phenol moiety o
56                                       Formal Claisen rearrangement gives alpha-benzoyloxyazo compound
57 s to allyl fumarates with subsequent Ireland-Claisen rearrangement has been accomplished yielding sub
58 lytic, enantioselective Meerwein-Eschenmoser Claisen rearrangement has been achieved.
59                    The carbanion-accelerated Claisen rearrangement has been extended to include phosp
60 effects on the stereochemical outcome of the Claisen rearrangements have been examined.
61 other methods for catalytic enantioselective Claisen rearrangements have not provided a satisfactory
62 r Diels-Alder reaction, and the Cope and the Claisen rearrangements) have been characterized.
63 o the intramolecular delivery of ring E (via Claisen rearrangement, Heck-type cyclization, or radical
64       The tandem gold(I)-catalyzed propargyl Claisen rearrangement/hydroarylation reaction of suitabl
65  readily obtained using olefin isomerization-Claisen rearrangement (ICR) reactions to prepare the key
66 iversity available from olefin isomerization-Claisen rearrangement (ICR) reactions.
67  electrostatic "solutions" to catalyzing the Claisen rearrangement in CMs.
68                  Benzothiazole formation and Claisen rearrangement involve the cleavage of S-S and C-
69              [Chemical reaction: see text] A Claisen rearrangement/iodolactamization sequence startin
70                    Although the aromatic aza-Claisen rearrangement is a general strategy for accessin
71                                The propargyl Claisen rearrangement is a known protocol to gain access
72                                  The Ireland-Claisen rearrangement is effectively utilized to establi
73     New insight into solvent effects for the Claisen rearrangement is presented herein, and a QM/MM a
74 chenmoser-Claisen rearrangement and the thio-Claisen rearrangement is proposed.
75                                  The Ireland-Claisen rearrangement is the central step in the synthes
76 is based on the early application of Ireland-Claisen rearrangement, macrolactamization, and a late-st
77 cess entailing the Au(I)-catalyzed propargyl Claisen rearrangement/Nazarov cyclization of propargyl v
78 cess entailing a gold(I)-catalyzed propargyl Claisen rearrangement/Nazarov cyclization, a [4+2] cyclo
79 col for the dearomative Meerwein-Eschenmoser-Claisen rearrangement of 3-indolyl alcohols that provide
80 atalysts have been designed for the aromatic Claisen rearrangement of a 1,1-dimethylallyl coumarin.
81                      Metal-catalyzed, double Claisen rearrangement of a bis-allyloxyflavone has been
82                     The catalytic asymmetric Claisen rearrangement of a Gosteli-type allyl vinyl ethe
83 the strategy is a tandem Claisen/Diels-Alder/Claisen rearrangement of a suitably substituted xanthone
84                           Orthoester Johnson-Claisen rearrangement of allyl alcohol (+)-9 (98% ee) in
85               Specifically, the unimolecular Claisen rearrangement of allyl p-nitrophenyl ether (ApNE
86 in highly enantioselective catalysts for the Claisen rearrangement of allyloxy- and propargyloxy-indo
87 -Heterocyclic carbenes (NHCs) catalyzing aza-Claisen rearrangement of alpha,beta-unsaturated enals wi
88 zes on the highly diastereoselective Ireland-Claisen rearrangement of an acyclic alpha-branched allyl
89  precursor obtained from an "underdeveloped" Claisen rearrangement of an aryl dienyl ether.
90                                          The Claisen rearrangement of aromatic allyl phenyl ether to
91 by the chorismate mutase (CM) enzyme for the Claisen rearrangement of chorismate to prephenate has be
92           Solvent effects on the rate of the Claisen rearrangement of chorismate to prephenate have b
93 he transition state, were calculated for the Claisen rearrangement of chorismate to prephenate in six
94 key step of the first approach relies on the Claisen rearrangement of glucal 18 to provide ester 20a.
95   The N-heterocyclic carbene (NHC)-catalyzed Claisen rearrangement of hybrid Ireland-Coates structure
96 F elimination and C-C bond formation through Claisen rearrangement of in situ generated difluorovinyl
97 e reaction proceeds via a reductive iodonium Claisen rearrangement of in situ-generated beta-pyridini
98 c ketone 33 was prepared by sequential Tebbe-Claisen rearrangement of lactones 29 and 30, which origi
99 ssentially constitutes a Pd(0)-catalyzed aza-Claisen rearrangement of N-allyl ynamides, which can als
100 ole-substituted guanidinium ions promote the Claisen rearrangement of O-allyl alpha-ketoesters and in
101 thetic sequence involving the use of Ireland-Claisen rearrangement of propargylic acetates to form th
102           Key steps include the O-allylation/Claisen rearrangement of spirolactone systems, which are
103 tal/theoretical investigation of the Ireland-Claisen rearrangement of tetrasubstituted alpha-phthalim
104                                  The Ireland-Claisen rearrangement of the bis-allylic esters occurred
105 -gamma-lactone derivatives using the thermal Claisen rearrangement of the corresponding 3-O- and 2-O-
106 onate 46, methylenation of 46 and subsequent Claisen rearrangement of the corresponding alkenyl-subst
107 amolecular C-H phenolization via an aromatic Claisen rearrangement of the respective Mitsunobu adduct
108 tudies of the aldol condensation and Ireland-Claisen rearrangement of the resulting Et 3N-solvated en
109                                 The aromatic Claisen rearrangements of allyl p-R-phenyl ethers (R = C
110 ts were discovered as superior in catalyzing Claisen rearrangements of allyloxy- or proparyloxy-subst
111 wo reaction cascades occurring following the Claisen rearrangements of aryl propargyl ethers to the a
112                                          The Claisen rearrangements of chorismate (CHOR) in water and
113            Highly enantioselective catalytic Claisen rearrangements of ester-substituted allyl vinyl
114 ovides a unique mechanism for catalyzing the Claisen rearrangement on the microsecond lifetime of the
115 st energy pathway (cation-accelerated oxonia Claisen rearrangement) originates from the second most s
116 phosphorus-stabilized, carbanion-accelerated Claisen rearrangements proceed rapidly at room temperatu
117                                  The Ireland-Claisen rearrangement proceeds with high diastereoselect
118     A sequential allyl vinyl ether formation-Claisen rearrangement process catalyzed by a palladium(I
119      In the case of cyclodienes, the Ireland-Claisen rearrangement produced s-trans locked dienes whi
120                           An initial Ireland-Claisen rearrangement produced the benzannulated enyne-a
121 gies toward the synthesis of morpholines and Claisen rearrangement products based on the divergent re
122 lowed by subsequent reaction cascades of the Claisen rearrangement products depending on the presence
123 allylic alkoxides gave products arising from Claisen rearrangement, providing access to keto-alkenes
124             An enantioselective alkoxylation/Claisen rearrangement reaction was achieved by a strateg
125 ve-assisted oxyanionic 6-exo-dig cyclization/Claisen rearrangement reaction.
126 is stereochemically complementary to related Claisen rearrangement reactions--processes that typicall
127 d enantioselective variants of the venerable Claisen rearrangement remain relatively rare.
128   A one-pot difluorocyclopropenation/Ireland-Claisen rearrangement sequence applied to readily availa
129 assisted tandem oxyanionic 5-exo cyclization/Claisen rearrangement sequence.
130 significantly more reactive toward 1,3-diaza-Claisen rearrangements than isoquinuclidene 2.
131 logenation of a simple alkene, and a Johnson-Claisen rearrangement that generates a quaternary carbon
132 tion of cyclic carbonate 90 in tandem with a Claisen rearrangement that generates the octenalactone p
133 onyl shift was made when examining these aza-Claisen rearrangements thermally.
134 )-catalyzed olefin isomerization and in situ Claisen rearrangement to afford stereodefined beta-boryl
135 to-enol tautomerization step of the aromatic Claisen rearrangement to be the rate-determining step.
136 gent approach featuring (1) a double Ireland Claisen rearrangement to establish key core bonds with c
137        Both routes utilized an efficient aza-Claisen rearrangement to establish the absolute stereoch
138 ant allyl ethers were subjected to a thermal Claisen rearrangement to give the corresponding methyl 7
139 ic iridium(I) catalyst followed by a thermal Claisen rearrangement to provide the allylsilanes in exc
140 l transition state, as well as a [3,3]-retro-Claisen rearrangement to recycle the IMDA product into l
141 symmetric alkylation, and asymmetric Johnson-Claisen rearrangement to set six of the seven chiral cen
142                      The key steps involve a Claisen rearrangement to set up a 4-substituted-3-methyl
143 ediate and its transformation through an aza-Claisen rearrangement to the desired pyridine product.
144 was obtained by a similar strategy involving Claisen rearrangement to transfer an allyl group from th
145 erionic intermediates that undergo 1,3-diaza-Claisen rearrangements to afford highly substituted urea
146 mbination involves addition-elimination, aza-Claisen rearrangement, tosyl migration, and aromatizatio
147 addition transition state is followed by the Claisen rearrangement transition state.
148                                              Claisen rearrangement transition states are also highly
149 urface by shifting the cycloaddition and the Claisen rearrangement transition states in opposite dire
150 relative positions of the bis-pericyclic and Claisen rearrangement transition states may control peri
151 ported relying on a key efficient asymmetric Claisen rearrangement, triggered by electrophilic activa
152   This allylic alcohol is then utilized in a Claisen rearrangement under Johnson's conditions to intr
153 p, allylation of the 5-hydroxyl, followed by Claisen rearrangement under microwave conditions with co
154          Remote stereocontrol in the Ireland-Claisen rearrangement using a chiral acetonide that serv
155 e-tethered chromanone/coumarin scaffolds via Claisen rearrangement using a solid state melt reaction
156 ylcyclohexa-2,4-dien-1-one, involved in this Claisen rearrangement was captured and characterized by
157 diate followed by the zwitterionic 1,3-diaza-Claisen rearrangement was consistently a higher energy p
158 ctions generated the fused tricyclic core, a Claisen rearrangement was used to install an otherwise u
159 ated Ireland-Claisen and Eschenmoser Claisen/Claisen rearrangements were proposed.
160  2 decreases the reactivity toward 1,3-diaza-Claisen rearrangements, while the exodiastereomers 3b an
161 irst examples of asymmetric induction in the Claisen rearrangement with chiral, phosphorus, anion-sta
162 marked (20-fold) acceleration of the Ireland-Claisen rearrangement with evidence of autocatalysis.
163 ent data on the regioselectivity of aromatic Claisen rearrangements with meta-substituted benzenes.

 
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