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1 site remote from the original carbon-carbon double bond).
2 (dihydro)ceramides that lacked the critical double bond.
3 ed by an electron abstraction from the lipid double bond.
4 llowed by air oxidation to reinstall the C-C double bond.
5 ng the higher reactivity inherent in the B=O double bond.
6 ort the presence of a polarized terminal B=O double bond.
7 equired for the introduction of the Delta14Z double bond.
8 from cleavage on both sides of the erstwhile double bond.
9 g on the position and stereochemistry of the double bond.
10 b) peroxyl radical addition (PRA) to a "C=C" double bond.
11 by directly hindering access to the enolate double bond.
12 t on the position and stereochemistry of the double bond.
13 ng tetracyclic compound 13 with an exocyclic double bond.
14 out of plane deformation vibration of trans double bond.
15 onfirm the formation of a conventional Al=Al double bond.
16 e ion beam, including the one with the Al=Al double bond.
17 elective hydrogenation of a tetrasubstituted double bond.
18 njugation with the remote C horizontal lineC double bond.
19 ia hydrogen bonding, rapidly isomerizing the double bond.
20 me introducing the crucial alk-1'-enyl ether double bond.
21 g on the position and stereochemistry of the double bond.
22 1,4-dienes occurs at the most electron-rich double bond.
23 desaturation requiring 1 oxygen molecule per double bond.
24 ymmetric reduction of the C horizontal lineN double bond.
25 fragment harboring an electron-deficient C-C double bond.
26 atom to a C[double bond, length as m-dash]C double bond.
27 uction of the retinal protonated Schiff base double bond.
28 oxygen radical addition to the carbon-carbon double bond.
29 lyl)imines as the 2pai partners at their C=N double bond.
30 and ene reactions (39.8%) occurring at the Z double bond.
31 ylene units linked entirely by carbon-carbon double bonds.
32 natural products with 1,5,9,n-(Z)-configured double bonds.
33 ydrocarbon chain, and number and location of double bonds.
34 ains its ability to accommodate multiple cis double bonds.
35 lipids contain one or multiple carbon-carbon double bonds.
36 e carbon-carbon single bonds neighboring the double bonds.
37 hesis of cyclic and acyclic tetrasubstituted double bonds.
38 nes are linear hydrocarbons with one or more double bonds.
39 on of simple alkenes with cyclic or terminal double bonds.
40 ociated with short complex lipids with fewer double bonds.
41 ocenes are rare and limited to carbon-carbon double bonds.
42 catalysts capable of oxidizing carbon-carbon double bonds.
43 geometric configuration of the carbon-carbon double bonds.
44 rated fatty acids in the order of increasing double bonds.
45 able sulfone radicals, which smoothly add to double bonds.
46 onjugated chains with alternating single and double bonds.
47 rom catalytic nitrene addition to the allene double bonds.
48 ed by total acyl carbons:total carbon-carbon double bonds, 36:6, 36:5, and 34:3 PC and 34:3 PE (all c
49 formation of the C5-C6, C9-C10, and C17-C18 double bonds, a Suzuki-Molander C21-C22 bond formation r
50 s (S(*)) in a cycle propagated by reversible double-bond addition and terminated by radical H-abstrac
51 TX1317, contains an endocyclic carbon-carbon double bond and a fluoroacetate activating group and exh
52 ic preference for the Z-isomer of the second double bond and a slow isomerization toward the thermody
53 implemented to pinpoint the location of both double bond and cyclopropyl unsaturations on the four ac
54 Complex amines bearing a C horizontal lineC double bond and distinct heteroaromatic units have been
56 -imine tautomerization of the new beta,gamma-double bond and subsequent 5-exo-trig cyclization of ter
57 renes occurred through cleavages of the enol double bond and the amide bond, thus furnishing fully su
58 oxoketenes as the 2pai partners at their C=C double bond and the N-(5-pyrazolyl)imines as the 4pai pa
60 d considering the peak area related to trans double bonds and chemometrics techniques of PLSR and PCR
63 10 have greatly decreased 16:3 (acyl carbons:double bonds) and increased 18:3 acyl chain abundance in
64 of being strong, as expected for a covalent double bond, and of being reversible due to a fast hydro
65 a,beta-difuctionalisation of a carbon-carbon double bond, and proceeds under mild conditions with vis
66 at halogens, carbonyl functional groups, C=C double bonds, and aromaticity decrease rejection, that m
67 bility to complex lipids containing multiple double bonds, and the advantage of not requiring extra a
68 he degree of unsaturation or conformation of double bond appears to have no influence on protein bind
69 absorption wavelength of CO single versus CO double bonds are characteristic features of the investig
70 terpenes and terpenoids exhibiting a single double bond as the only functional group, such as alpha-
71 e of the reaction to the polarization of the double bond as well as to the stability of the secondary
73 ith a longer acyl chain and higher number of double bonds at baseline were significantly and inversel
75 at captures the differences in reactivity of double bonds at various positions in the fatty acid of a
77 to an aldehyde and a ketone with exo-cyclic double bond between C-13 and C-6 in zerumbone has been r
78 s the original galiellalactone system with a double bond between C-2a and C-3, but with a new substit
80 elta9 fatty acyl desaturases introduce a cis-double bond between C9 and C10 of saturated fatty acyl c
82 In contrast to carbon substituents on the double bond, boron substituents accelerate the alkyne co
83 ith the exposure to radiations, the carbonyl double bonds break affording oxo-radicals that can be st
85 s phosphasilenes not only stabilize the Si=P double bond, but also influence the structure and specie
86 nly unsaturated fatty acids containing cis-9 double bonds, but not fatty acids with trans-9 double bo
87 correlates with the number of carbon-carbon double bonds, but not with the extent of conjugation.
89 e differential distribution of carbon-carbon double bond (C=C db) positional isomers of unsaturated p
91 the effective localization of carbon-carbon double bonds (C=C) in unsaturated lipids to distinguish
94 ificant elongation of the N horizontal lineN double bond, caused by an increase of its pig* antibondi
99 known as plasmalogens, harbor a vinyl ether double bond conferring special chemical and physical pro
100 tribution to the dicarbon bonding involves a double-bonded configuration, with 2[Formula: see text] b
101 the direct production of C horizontal lineC double bond-containing products and may impact how chemi
102 lycerols with a low acyl carbon number and a double bond count, as well as higher levels of lipids in
103 Typically, LCBs contain a single Delta4E double bond (DB) (mostly d18:1), whereas the dienic LCB
106 d tandem-MS (MS(n)), the localization of C=C double bonds (DBs) requires specialized fragmentation an
107 id class with two additional CH(2) and three double bonds (Deltam/z = 0.0025) and the first isotopic
109 mand of the electron-rich, alkyl-substituted double bond determines the reaction pathway, whether the
110 luminum complex containing a formal aluminum double bond (dialumene), and thus an alkene equivalent,
111 ivity, the highly reducing nature of the B-B double bond enables reactions with Se(0) and Te(0) .
112 enation of a 1,3-diene to a tetrasubstituted double bond, enzyme-catalyzed malonate desymmetrization,
113 in the near-infrared region (e.g., acrylate double bonds, epoxy groups) or the MIR region (e.g., thi
117 first performed on generated data sets using double bond equivalents (DBE) versus number of carbon at
118 ft time, carbon number range, and associated double bond equivalents and hydrogen-to-carbon ratios.
121 , halides, isolated mono- and di-substituted double bonds, esters, silyl ethers, and silyl enol ether
123 in the literature by direct MS analysis: C=C double bond formation on saturated fatty acids, covalent
125 on process was initiated by the migration of double bond from alpha,beta -> beta,gamma position.
128 ing supported the requirement for the proper double-bond geometry of JH, which appears to be its majo
129 This observation indicates that only the double bond has to be encapsulated to effect hydrogenati
130 strategy, MELDI (mCPBA Epoxidation for Lipid Double-bond Identification), which enables both large-sc
133 complete scission of the B horizontal lineB double bond in 6 was achieved by the treatment with an i
134 iffer by the presence/absence of an internal double bond in each aliphatic chain (unsaturated and sat
135 lowed by the enantioselective reduction of a double bond in geranial by geranial reductase GER1 to gi
138 rienol with dihydro-OSM, which lacks a trans double bond in the sphingoid base, was even stronger tha
143 he abundance, position, and configuration of double bonds in lipid acyl chains, and provide insights
146 find a significant increase in the number of double bonds in small LDs (below 2 mum in diameter) comp
151 nt, either complete single bond (in DMSO) or double bond (in cyclohexane) rotation can be induced by
152 8L/D280K) that, in addition to introducing a double bond into stearate to produce oleate, performed a
153 1 (DES1), which normally inserts a conserved double bond into the backbone of ceramides and other pre
162 acid-catalyzed tandem process consisting of double bond isomerization of allyl ethers and amines and
163 Due to mildness of the reaction conditions, double bond isomerization or cyclization to indole side
164 erally catalyzed simpler reactions with less double-bond isomerization and fewer cyclization steps.
167 and determining the relative contribution of double bond isomers has limited the application of the s
169 spectra can be used to discern cis and trans double-bond isomers by virtue of the differences in the
170 thod for the identification of cis and trans double-bond isomers within intact complex lipid mixtures
172 mbered metallacyclocumulenes Cp'2M[eta2-C(R)[double bond, length as m-dash]C(C2R)-C(R)[double bond, l
173 as m-dash]C[double bond, length as m-dash]C[double bond, length as m-dash]C(R)-] (formed by coordina
174 as m-dash]C[double bond, length as m-dash]C[double bond, length as m-dash]C(R)-] (formed by coordina
175 2M[eta2-C(R)[double bond, length as m-dash]C[double bond, length as m-dash]C(R)-C(R2)-] (formed by co
176 dash]C, C[double bond, length as m-dash]C, C[double bond, length as m-dash]C), five-membered metallac
177 by coordination of tri-functional trienes: C[double bond, length as m-dash]C, C[double bond, length a
178 rienes: C[double bond, length as m-dash]C, C[double bond, length as m-dash]C, C[double bond, length a
179 d by coordination of bi-functional enynes: C[double bond, length as m-dash]C, C[triple bond, length a
180 membered metallacycloallenes Cp'2M[eta2-C(R)[double bond, length as m-dash]C[double bond, length as m
181 sh]C), metallacyclocumulenes Cp'2M[eta2-C(R)[double bond, length as m-dash]C[double bond, length as m
182 2M[eta2-C(R)[double bond, length as m-dash]C[double bond, length as m-dash]C[double bond, length as m
183 R)[double bond, length as m-dash]C(C2R)-C(R)[double bond, length as m-dash]C[double bond, length as m
184 ]C(C2R)-C(R)[double bond, length as m-dash]C[double bond, length as m-dash]C[double bond, length as m
186 Ar1-NH-N[double bond, length as m-dash]CR3-N[double bond, length as m-dash]N-Ar5), a class of nitroge
187 ailable/elaborated for the generation of [An[double bond, length as m-dash]NR] and [Ln[double bond, l
189 analytical responses depending on number of double bonds, length of the acyl chain, infused lipid co
190 eparate tandem mass spectrometry methods for double bond localization and for chain branching in thei
191 tly, several advancements have been made for double bond localization by mass spectrometry (MS) analy
193 f isomeric lipid species presenting distinct double bond locations or geometries but was not able to
194 fication of lipid isomers that differ in the double bond locations/geometries as well as in the posit
195 t (e.g., varying acyl chain positions and/or double bond locations/geometries) in eukaryotic cells.
196 retinal chromophore featuring a C(11)=C(12) double bond locked in its cis conformation (Rh6mr), empl
200 understood pathways, to species that promote double-bond migration (isomerization) in both the 1-alke
201 mputational study suggest that, despite fast double bond migratory insertion into Ir-H, the reaction
202 Odor Activity Value (OAV) and the number of double bonds mostly contributed to the modulation of hab
203 y different N-heterocycles with an exocyclic double bond (= N-heterocyclic olefins, NHOs) has been de
205 ncluding the number of internal and external double bonds, number of methyl- and ethyl- functional gr
208 e analog of DMF that lacks the electrophilic double bond of fumarate, is unable to inhibit NFkappaB a
209 It is also possible for the carbon-carbon double bond of noroxomaritidine to be reduced, forming t
210 dihalocarbene addition across the exocyclic double bond of readily accessible 3-alkylidene-1,2-diaze
211 oiety and hydrogenation of the exo-methylene double bond of the bicyclo[3.2.1]oct-2-ene adduct illust
213 tively, also reduce the more inert exocyclic double bond of the same 4-substituted Delta1-pyrroline-2
215 cyclo-addition of prFMN with the alpha-beta double bond of the substrate, which serves to activate t
221 eveals the paramount role played by internal double bonds on the self-assembly of discrete large mole
223 uble bonds, but not fatty acids with trans-9 double bonds or cis double bonds at other positions.
224 ives equipped with clickable (azide, alkyne, double bond, or thiol precursor) moieties, starting from
225 ion, followed by an isomerization of the C=C double bond, oxidative C=C cleavage, and intramolecular
226 ctive monomer unit (e.g., C horizontal lineC double bond peak for (meth)acrylates, H-S thiol and C ho
227 )acrylates, H-S thiol and C horizontal lineC double bond peak in thiol-ene systems, C-O epoxy peak fo
228 by TAG backbone, chain length, and number of double bonds per chain, as well as the presence of prote
231 potentials, it is shown that an increase of double bond polarization is not a necessary prerequisite
234 (i) unambiguous assignment of carbon-carbon double bond position(s) and (ii) relative quantitation o
236 group, fatty acyl composition, carbon-carbon double bond position(s) in unsaturated fatty acyl chains
237 along the glycerol backbone or carbon-carbon double bond position(s) in unsaturated fatty acyl substi
239 sn backbone isomers, acyl chain isomers, and double-bond position and stereoisomers, is demonstrated.
240 cer subtypes uncovered a correlation between double bond positional isomer abundance and the hormone
241 sociation (UVPD) for the characterization of double bond positional isomers of charge inverted dicati
242 lated through lipogenesis, rendering diverse double-bond positional isomers (C=C isomer) of a given u
244 onstrated to differentiate sn-positional and double-bond-positional isomers, such as the regioisomeri
245 ation reaction was performed to pinpoint the double bond positions in diacylglyceryltrimethylhomoseri
246 ostic ions compared to normal BCFA, enabling double bond positions of MUBCFA to be determined with th
247 l differences such as relative carbon-carbon double bond positions were found in several cases to aff
249 bitrap mass spectrometer is used to localize double bond positions within phosphatidylcholine (PC) ac
251 cacy, and a long nonpolar acyl tail with a Z double bond present at the halfway position for a high a
252 around potential reactivity of the exocyclic double bond present in series I toward nucleophilic atta
253 acter of the noninnocent ligand, significant double-bond properties of the interaction, and three-cen
255 The proposed mechanism includes the enol double-bond protonation, followed by intramolecular cycl
256 e of the carbon-carbon bonds adjacent to the double bond provides a diagnostic mass difference of 24
258 cis addition of H(2) (or D(2)) across alkene double bonds, reminiscent of rhodium(I) catalysts but di
261 action mechanism involving excitation of the double bond's pi electrons followed by hydrogen atom rea
262 sformation of lutein to meso-zeaxanthin by a double-bond shift mechanism, but its identity has been e
263 lts indicate that the presence of conjugated double bonds, side chains, glucose moiety or ether moiet
264 n mechanism initiated by ozone attack at the double bond similar to that found in the ozonolysis of c
268 ically, transient vibrational spectra in the double-bond stretching region are recorded for subsets o
269 k, compounds containing either an endocyclic double bond, such as 20 (series II), or devoid of an ole
270 teristic 1-O-alk-1'-enyl ether (vinyl ether) double bond that confers special biophysical, biochemica
272 escent copper(I) pi-complexes of boron-boron double bonds, the Cun-pi-diboryne compounds (n = 2, 3) s
273 e weighted by the number of carbon atoms and double bonds, the strongest inverse association was foun
274 es of [(HCDippN)2B]2GeGe reveal a weak Ge-Ge double bond-the pi component of which contributes to the
277 ion of the adenosyl radical to the substrate double bond to form a captodative radical followed by re
278 ary-carbon radical and an electron-deficient double bond to form vicinal quaternary and tertiary ster
279 linochlorin with acid converts the exocyclic double bonds to direct links to the ortho-positions of b
281 determines the reaction pathway, whether the double bond transposition toward the conjugated 1,3-dien
282 tl phase and thus represents the first Ge=Ge double bond under such conditions, as also suggested by
283 l group (6) as substituents at the exocyclic double bond was synthesized in the form of the E-isomers
284 d two-boron bridge, isoelectronic with a C=C double bond, was achieved by reduction of a carbene-stab
285 the JH skeleton, dictated by two stereogenic double bonds, was the most critical feature followed by
286 explain this fragmentation pattern in trans double bonds, we have proposed a reaction mechanism invo
287 rings, three stereogenic centers, and a new double bond were generated in a single chemical operatio
288 ls (TAGs) of shorter carbon chains and fewer double bonds were associated with greater risk of FA, wh
291 hereas TAGs of longer carbon chains and more double bonds were significantly associated with lower ri
292 in all cases, the positions of carbon-carbon double bonds were unequivocally assigned based on predic
293 es in a novel tunable electro-epoxidation of double bonds, where onset of the reaction can be control
294 maomycin can reduce only an endocyclic imine double bond, whereas Apd6 LmbY and partially GriH from t
295 t species with one localized N=P and one C=P double bond, whereas the heterocyclopentanediyl isomer r
296 ing analyses reveal that Bi forms triple and double bonds with boron in BiB2 O(-) ([Bi identical with
297 alculations reveal a polarized-covalent Zr=P double bond, with a Mayer bond order of 1.48, and togeth