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1 an in situ generated azomethine ylide onto a cyclopropene.
2 ers containing both an alkyl diazirine and a cyclopropene.
3 und to dirhodium to produce a donor-acceptor cyclopropene.
4 le cyclopropane intermediates generated from cyclopropenes.
5 azoacetate and terminal acetylenes to chiral cyclopropenes.
6 ctive carbometalation of sp(2)-disubstituted cyclopropenes.
7 opropenyl benziodoxoles (CpBXs) and terminal cyclopropenes.
8 rnary nature starting from easily accessible cyclopropenes.
9 iolation through the divergent reactivity of cyclopropenes.
10 xcellent stereoselectivity of reactions with cyclopropenes.
11  substituted isatins, alpha-amino acids, and cyclopropenes.
12 e aromaticities and antiaromaticities of the cyclopropenes.
13 eactivities relying on C-C bond cleavages of cyclopropenes.
14  syn from adducts formed from reactions with cyclopropenes.
15 ion of nitrile imines with 3,3-disubstituted cyclopropenes.
16 ed from two Pauson-Khand reactions of chiral cyclopropenes.
17 oxaldehydes from readily available prochiral cyclopropenes.
18 egioselectivity in Pauson-Khand reactions of cyclopropenes.
19 l ring of phenylcarbene, the highly strained cyclopropene 1,5-difluorobicyclo[4.1.0]hepta-2,4,6-trien
20 y reactive and unstable substrates as parent cyclopropene, 1-methylcyclopropene, 1-phenylcyclopropene
21 opropenone or 2,3-bis(2,3,4-trimethoxyphenyl)cyclopropene-1-thione with oxalyl bromide results in the
22 cloaddition between two unstable components, cyclopropene 10 and cyclopentadiene 11.
23                    The high strain energy of cyclopropene (54.1 kcal/ mol) is attributed largely to a
24                       With gem-disubstituted cyclopropenes, a novel cycloisomerization based on ring-
25 n both the gas phase and acetonitrile, :CCl2-cyclopropene addition follows an asymmetric, non-least-m
26  a vinylcarbene (in addition to the expected cyclopropene), additional calculations and preliminary e
27 /6-31G*) to yield the expected corresponding cyclopropene adducts.
28            Subsequent hydrolysis of selected cyclopropenes afforded the corresponding cyclopropenones
29    We just click: Genetic incorporation of a cyclopropene amino acid CpK (see scheme) site-specifical
30 ence of both the trimethylsilyl group on the cyclopropene and the platinum catalyst are crucial for t
31 essfully demonstrated with a wide variety of cyclopropenes and alkyl sulfinates, showcasing its broad
32 1,3]-electrocyclizations to produce reactive cyclopropenes and furans, and these are capable of furth
33 loaddition, as well as enriches chemistry of cyclopropenes and methods for the construction of polycy
34        The cycloadditions of tetrazines with cyclopropenes and other strained alkenes have become amo
35 -fold) when reacted with dienophiles such as cyclopropenes and trans-cyclooctenes, and we demonstrate
36 -substituted cyclopentadienes, 3-substituted cyclopropenes, and 7-substituted cycloheptatrienes have
37 es and for 6 halogen-substituted butadienes, cyclopropenes, and a cyclobutene.
38 eaction of tetrazines with 1,3-disubstituted cyclopropenes, and the 1,3-dipolar cycloaddition of nitr
39                     [1,3] hydrogen shifts in cyclopropenes are very difficult, passing through transi
40 ds of carbocycles, namely, cyclopropanes and cyclopropenes, are ubiquitous in natural products and ph
41  a series of differently substituted Si(2)Ge-cyclopropenes as nickel complexes in excellent yields.
42  to measure the acidity of 3-(4-methylphenyl)cyclopropene at the allylic position (delta H(o)acid = 3
43  that promotes the addition of phosphines to cyclopropenes at ambient temperature.
44 alkyl thiols to unactivated beta-substituted cyclopropene carboxylic acid derivatives has been develo
45 )][BF(4)] (5) and eta(2)-1-metalla(methylene)cyclopropene complex [C(5)Me(5)(CO)(2)Re(eta(2)-PhC-C=CH
46 (3)-propargyl and eta(2)-1-metalla(methylene)cyclopropene complexes is very rapid and results in coal
47 tically encoded incorporation of alkyne- and cyclopropene-containing amino acids at distinct sites in
48 d orthogonal ribosome (riboQ1), and encode a cyclopropene-containing ncAA (CypK) at diverse sites on
49                                              Cyclopropenes (CPEs) remain underexplored for ROMP.
50 e gold-catalyzed synthesis of cyclopropanes, cyclopropenes, cyclobutanes, cyclobutenes, and their cor
51 nly slightly higher for the strained alkenes cyclopropene (DeltaE++ = 14.5 kcal/mol) and cyclobutene
52                                 Although the cyclopropene derivatives are unusually stable, they are
53 e synthesized from enantiomerically enriched cyclopropene derivatives with >99% stereotransfer and go
54 talyzed addition of diorganozinc reagents to cyclopropene derivatives.
55 a new platform for the synthesis of valuable cyclopropenes difficult or not possible to make by curre
56  pi-donor ability of the substituents on the cyclopropene double bond (C1 and C2).
57 stabilization of the transition state by the cyclopropene double bond.
58                          The substituents on cyclopropenes effectively inhibited homoaddition and pre
59  thiol pronucleophiles and fully substituted cyclopropene electrophiles under mild reaction condition
60  C(sp(3))-H bond motifs and multisubstituted cyclopropenes, enabling the efficient synthesis of highl
61                                              Cyclopropene exhibited fast reaction kinetics in the pho
62 ts CPA-FAs are usually minor components with cyclopropene fatty acids (CPE-FAs) more abundant.
63 organic compounds, including sesquiterpenes, cyclopropenes, fatty acids, steroids, alcohols, ketones,
64 lves a diastereoselective carbometalation of cyclopropenes followed by a cyclization to furnish the b
65  radicals exhibit regioselective addition to cyclopropenes, followed by the subsequent activation of
66 erent P411 variants can selectively catalyze cyclopropene formation, carbene insertion into a proparg
67                               Donor-acceptor cyclopropenes formed from the geometrical isomers of the
68 ion intermediates yielding fully substituted cyclopropenes functionalized with two alpha-tert-alkyl c
69 y [3+2]-cycloaddition between donor-acceptor cyclopropenes generated from enoldiazoacetamides and car
70 -cycloadditions (n = 3, 4) by donor-acceptor cyclopropenes generated in situ from enoldiazo compounds
71 d from highly stereoselective reactions with cyclopropenes, generated in situ from vinyl diazoacetate
72 reoselective Alder-ene cycloisomerization of cyclopropenes give (aza)spiro[2.4]heptanes and spiro[2.5
73        Alternatively, some gem-disubstituted cyclopropenes give dimerizations of the intermediate car
74                                          Ene-cyclopropenes give functionalized indanes and tetralines
75 ng quenched fluorophore-tetrazine and methyl-cyclopropene groups that rapidly react by bioorthogonal
76 bimetallic species (ditins and silyltins) to cyclopropenes has been developed.
77 en-3-olate, DHPO] to differently substituted cyclopropenes has been established.
78 A key mechanistic intermediate, a ring-fused cyclopropene, has been isolated and characterized.
79 iodosulfonated cyclopropanes into sulfonated cyclopropenes, highlighting its substantial value as a v
80 yzed diastereoselective iodosulfonylation of cyclopropenes in a water medium.
81 and enables access to 3,3-bis(difluoromethyl)cyclopropenes in short order.
82 ring-opening regioselectivity of substituted cyclopropenes in the presence of gold(I) catalysts.
83 30(+/-8)% methylacetylene, and less than 10% cyclopropene, in agreement with previous RRKM results.
84 well as the involvement of an in situ formed cyclopropene intermediate in gold catalysis.
85 ase-assisted dehydrohalogenation producing a cyclopropene intermediate, which subsequently undergoes
86 elling evidence against mechanisms involving cyclopropene intermediates.
87  that the addition across the double bond of cyclopropene is generally controlled by steric factors a
88                           The donor-acceptor cyclopropene is in equilibrium with the dirhodium-bound
89 ty is achieved for spiro[2.4]heptanes if the cyclopropene is monosubstituted in C3.
90                    However, even at 3 K this cyclopropene is only metastable and rearranges via heavy
91  that the addition across the double bond of cyclopropenes is generally controlled by steric factors
92 mation of the SEs of a series of substituted cyclopropenes is provided by their dimerization/combinat
93 4 + 1] annulation of N-chlorobenzamides with cyclopropenes is reported.
94 protein) via a rapid, copper-free, tetrazine-cyclopropene ligation reaction (k2 > 5 M(-1) s(-1)).
95 ls-Alder cycloaddition (SPIEDAC) targeted to cyclopropene-lysine (CpK) for rapid, catalyst-free prote
96  applied to amides and nitriles, addition to cyclopropenes, metal-catalyzed reactions involving C-H f
97 y, yielding the transient unsaturated eta(2)-cyclopropene/metallabicyclobutane intermediate [Tp(Me2)N
98 nation reflects thermodynamically controlled cyclopropene-methylenecyclopropene rearrangement.
99 lso for double and triple labeling using the cyclopropene-modified 2'-deoxyuridine triphosphate.
100 triphosphates with tetrazines and one with a cyclopropene moiety were designed for Diels-Alder reacti
101 clo[2.2.2]octane and an aldehyde, polymerize cyclopropene monomers by a sequence of [3+2] cycloadditi
102                Transition-metal complexes of cyclopropenes occur as fleeting intermediates of numerou
103 henols, and thioacids with 3,3-disubstituted cyclopropenes occur in a regioselective and chemoselecti
104                                          The cyclopropene-oligonucleotide conjugate could be successf
105                   This reaction involves the cyclopropene opening by the metal catalysts with a diffe
106 n involves a reverse regioselectivity in the cyclopropene opening than with gold chlorides.
107 lar cyclopropenation reaction to produce the cyclopropene product (3), and undergoes intersystem cros
108 ne (B3LYP/6-31G*) shows the formation of the cyclopropene product and also possible formation of a vi
109 l, the vinylcarbene easily rearranges to the cyclopropene product, or to an exocyclic vinyl bicyclo[3
110                                The resulting cyclopropene products are readily reduced to the corresp
111                          The ring opening of cyclopropenes provides a compelling platform for the rap
112 ective copper-catalyzed carbomagnesiation of cyclopropenes, reaction with acylsilanes, and addition o
113 ell as promotes the C-C bond cleavage of the cyclopropene, rendering it as a one-carbon unit for the
114 rongly indicate that the C-H hydrogen of the cyclopropene ring activates the carbonyl group of the p-
115  The hydrogen atom, which is attached to the cyclopropene ring of bis(amino)cyclopropenium salts, is
116 e hydrogen atom (C-H) that is present in the cyclopropene ring of the catalyst is indeed solely respo
117 g a useful predictive model for gold-induced cyclopropene ring-opening.
118                         Spirocyclic xanthene-cyclopropene scaffolds were obtained.
119                     A variety of substituted cyclopropene scaffolds were synthesized and found to be
120  including previously unreported N(ylide)- H(cyclopropene) second-orbital interactions.
121 rans-cyclooctene (TCO) and 1,3-disubstituted cyclopropene, Sph exhibits balanced reactivity and stabi
122                                The effect of cyclopropene substituents on the rate of conversion is e
123 tochrome P450 enzymes to carry out efficient cyclopropene synthesis via carbene transfer to internal
124 l stages with diverse chemistries, including cyclopropene-tetrazine inverse electron demand Diels-Ald
125                                 Unlike other cyclopropenes that bear a single substitutent at C-3, th
126 erics, we developed a class of disubstituted cyclopropenes that selectively underwent single monomer
127     We describe here a new chemical reporter-cyclopropene-that can be used to target biomolecules in
128  aryne precursor led to ring cleavage of the cyclopropene to afford an unprecedented xanthylium salt.
129 the ring size of cycloalkenes increases from cyclopropene to cyclohexene, resulting in an increase in
130 es of cycloalkenes, from the highly strained cyclopropene to the unstrained cyclohexene, have been st
131 eo- and enantioselective desymmetrization of cyclopropenes to afford nonracemic cyclopropylboronates
132 lyzed hydro-, sila-, and stannastannation of cyclopropenes to give multisubstituted cyclopropylstanna
133 n-metal-catalyzed rearrangement of silylated cyclopropenes to the corresponding allenes is described.
134                                              Cyclopropenes undergo hydrothiolation to provide cyclopr
135                     Furthermore, some of the cyclopropene units were metabolically introduced into ce
136 nal isomer of benzene comprising two coupled cyclopropene units with the endocyclic double bonds in c
137                              Remarkably, the cyclopropenes used in these transformations differ by th
138 -opening metathesis polymerization (ROMP) of cyclopropenes using hydrazonium initiators is described.
139 ydrostannation reaction of 3,3-disubstituted cyclopropenes was demonstrated.
140 eo- and enantioselective hydroformylation of cyclopropenes was demonstrated.
141 tion of dichlorocarbene to 1,2-disubstituted cyclopropenes were calculated using hybrid density funct
142                                          The cyclopropenes were converted into alkynylcyclopropenyliu
143                 Interestingly, disubstituted cyclopropenes were found to present zero-order kinetics,
144 compounds that give access to donor-acceptor cyclopropenes which engage in [2+n] cycloaddition reacti
145 se diazo reagents selectively transform into cyclopropenes which engage in cycloaddition reactions wi
146 ent access to a variety of 1-(silyloxymethyl)cyclopropenes, which are not easily available via tradit
147   The small size and selective reactivity of cyclopropenes will facilitate efforts to tag diverse col
148 review of copper mediated carbometalation of cyclopropenes will follow.
149 ral oxa- and azabicycles, cyclobutenes and a cyclopropene with an alkyl- or aryl-substituted enol eth
150 cycloaddition by uncatalyzed reaction of the cyclopropene with isoquinolinium or pyridinium methylide
151 he context of the ring-opening metathesis of cyclopropenes with aldehydes using a simple hydrazine ca
152  in the Diels-Alder reactions of substituted cyclopropenes with butadiene were explored with M06-2X d
153                          The reaction of ene-cyclopropenes with Cp*RuCl(cod) leads to alkenyl bicyclo
154 atalyzed carbozincation of 3,3-disubstituted cyclopropenes with diorganozinc reagents.
155 We present here an aminative ring-opening of cyclopropenes with iron-aminyl radical to afford tetrasu
156 is a Cu-catalyzed directed carbozincation of cyclopropenes with organozinc reagents prepared by I/Mg/
157 ons of the cycloalkenes, cyclohexene through cyclopropene, with a series of dienes--1,3-dimethoxybuta
158                      The key features of our cyclopropenes, with their unique C-1 linkage to BRD-4-ta

 
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