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1 ields (conversion, diastereomeric ratio, and enantiomeric excess).
2 alkyl substituents in the 2 position (71-97% enantiomeric excess).
3 lds and high enantioselectivities (up to 92% enantiomeric excess).
4 synthesized in enantioenriched forms (86-90% enantiomeric excess).
5 for selective catalysis with 93% and 79% ee (enantiomeric excess).
6 e reacted with high optical purities (89-98% enantiomeric excess).
7 tuted dehydropiperidinones in high yield and enantiomeric excess.
8 Yields range from 57 to 99% with 78-95% enantiomeric excess.
9 orinated compounds in good yield and in high enantiomeric excess.
10 lution process, which causes a change of the enantiomeric excess.
11 ction of alpha-arylquinolines with up to 90% enantiomeric excess.
12 y been impeded by insufficient yield and low enantiomeric excess.
13 ns to bicycloalkenes in high yield with high enantiomeric excess.
14 deliver target structures in high yield and enantiomeric excess.
15 thesis of QUINAP and its derivatives in high enantiomeric excess.
16 nantioenriched chiral center without loss of enantiomeric excess.
17 terocyclic products in exceptional yield and enantiomeric excess.
18 iastereoselectivity and in high or very high enantiomeric excess.
19 ned in high yield, diastereomeric ratio, and enantiomeric excess.
20 enantiopure configuration, dimerize without enantiomeric excess.
21 r of +/-0.08 mM in concentration and 3.6% in enantiomeric excess.
22 undergo oxidation with complete retention of enantiomeric excess.
23 fording secondary alcohols in high yield and enantiomeric excess.
24 tically useful intermediate with exceptional enantiomeric excess.
25 ted beta-lactones in moderate yield and high enantiomeric excess.
26 ion that affords polycyclic products in high enantiomeric excess.
27 with EtOH to give amide ester (S)-6b in 84% enantiomeric excess.
28 ful chiral building blocks in high yield and enantiomeric excess.
29 tative diastereoselection and high levels of enantiomeric excess.
30 libration is accompanied by complete loss of enantiomeric excess.
31 lated by catalyst design, with no erosion of enantiomeric excess.
32 2-methyl-3-phenylpropanoic acid 14 in >/=95% enantiomeric excess.
33 y on the resolution rate, product yield, and enantiomeric excess.
34 to 93% and enantioselectivities of up to 88% enantiomeric excess.
35 gave the acid in 97% chemical yield and 91% enantiomeric excess.
36 CH-insertion product in 62-69% yield in high enantiomeric excess.
37 ubstrates in high yields and with up to 99 % enantiomeric excess.
38 c cyclopentenones were obtained in up to 75% enantiomeric excess.
39 mations led to the target compound with high enantiomeric excess.
40 yramide 6c yielded the desired (+)-4 in high enantiomeric excess.
41 give the cyclopropyl lactones 17a-d in high enantiomeric excess.
42 and that yields a single regioisomer in high enantiomeric excess.
43 ently cyclized in high yields with up to 99% enantiomeric excess.
44 of substituted d-tryptophan analogs in high enantiomeric excess.
45 ions, nonanionic conditions, and with a high enantiomeric excess.
46 d reactivity and generate products with high enantiomeric excess.
47 th up to >98% conversion and with up to >98% enantiomeric excess.
48 ith aniline afforded the urea product in 51% enantiomeric excess.
49 hesis of tertiary phosphine oxides with high enantiomeric excess.
50 robenzofurans in consistently high yield and enantiomeric excess.
51 in up to 98 % yield and greater than 99.5 % enantiomeric excess.
52 nd provides the title compounds in excellent enantiomeric excess.
53 oth natural products were obtained in >/=99% enantiomeric excess.
54 btained in high chemical yield and with high enantiomeric excess.
55 ohols, yielding up to 96% conversion and 99% enantiomeric excess.
56 ical yield and 100% diastereoselectivity and enantiomeric excess.
57 bound isomer, appear to be critical for high enantiomeric excesses.
58 s, high diastereomeric ratios, and excellent enantiomeric excesses.
59 n of both aldehydes and ketones provided low enantiomeric excesses.
60 product in good to excellent yields and high enantiomeric excesses.
61 ydrofurans are formed with good to excellent enantiomeric excesses.
62 ns of carbenes into C-H bonds with up to 98% enantiomeric excess, 35,000 turnovers, and 2550 hours(-1
65 to give general access to allenes with high enantiomeric excess (84-95%) for both malonate and amine
68 rganic catalyst to assemble products of high enantiomeric excess (a single optical isomer), are also
69 itions (-64% enantiomeric excess versus +89% enantiomeric excess); a transformation from one prevalen
70 e indicator chemistry, cellular imaging, and enantiomeric excess analysis, while also being involved
72 ion of a cyclic enone in excellent yield and enantiomeric excess and a potentially biomimetic oxidati
74 determination of the absolute configuration, enantiomeric excess and concentration of the target comp
76 is often challenging for mixtures with high enantiomeric excess and for complex molecules with stron
77 s a diverse range of propargylamines in high enantiomeric excess and good yield both in water and in
79 o[3,4:1,2][60]fullerenes with high levels of enantiomeric excess and moderate to good conversions.
80 alcohols are cleaved from the resin in high enantiomeric excess and moderate to good overall yield.
81 ethod that accomplishes determination of the enantiomeric excess and overall amount of a large variet
82 Soai autocatalytic reaction; accounting for enantiomeric excess and rate observations, that is both
84 rmation of the 3R alcohol configuration (99% enantiomeric excess) and contrasted with racemic 1-octen
85 94%) with high enantioselectivity (up to 99% enantiomeric excess) and excellent chemoselectivity.
86 high enantioselectivity (typically 90 to 99% enantiomeric excess), and afford products that are key p
87 ctivity and 97%, please refer to compound 2v enantiomeric excess), and can be performed easily on pre
88 nary carbon stereocenters are formed in high enantiomeric excess, and the conditions tolerate a range
90 ly (microgram concentration) and accurately (enantiomeric excess as low as 0.30% and enantiomeric imp
91 ly (milligram concentration) and accurately (enantiomeric excess as low as 0.6%) determined by use of
92 s with only about 1.5mg/mL concentration and enantiomeric excess as low as 0.80%, in water or in a mi
93 pounds with only microgram concentration and enantiomeric excess as low as 1.5%, in water or in a mix
94 two stereogenic centers are set by DERA with enantiomeric excess at >99.9% and diastereomeric excess
95 kyl groups to benzaldehyde, we have observed enantiomeric excesses between 96% (R) and 75% (S) of 1-p
96 ite furanone derivative was prepared in high enantiomeric excess by an immobilized lipase-catalyzed s
97 itro alcohols in good to excellent yield and enantiomeric excess by borane-dimethyl sulfide in the pr
99 ketones are prepared in good yield with high enantiomeric excess by rhodium-catalyzed allylic substit
102 molecules and quantitative determination of enantiomeric excess can be achieved in a table-top instr
103 ximately 70% of the variance in the observed enantiomeric excess can be attributed to the steric fiel
105 lized and unfunctionalized olefins with high enantiomeric excesses, demonstrating the potential utili
110 rded a mixtures of trans-(+)-(4S,5R)-4b with enantiomeric excess ee=99% and cis-(-)-(4S,5S)-4a with e
111 ic excess ee=99% and cis-(-)-(4S,5S)-4a with enantiomeric excesses ee=77% and ee=45% respectively.
117 gh levels of asymmetric induction [up to 89% enantiomeric excess (ee) and 92% ee for the two chiral c
118 ocol for the fast determination of identity, enantiomeric excess (ee) and concentration of chiral 1,2
119 ral approach to high-throughput screening of enantiomeric excess (ee) and concentration was developed
121 olution of homochirality requires an initial enantiomeric excess (EE) between right and left-handed b
124 We report herein an unprecedentedly high enantiomeric excess (ee) for Pd patches deposited onto C
127 ral solvating agents (CSAs) to determine the enantiomeric excess (ee) of 18 MA samples over a wide ee
128 oncurrent determination of concentration and enantiomeric excess (ee) of a chiral analyte, which has
129 conditions as a means to obtain the highest enantiomeric excess (ee) of a desired transformation.
130 s (eIDAs) were used for the determination of enantiomeric excess (ee) of alpha-amino acids as an alte
131 diastereomeric excess (de) limits the final enantiomeric excess (ee) of any phosphorus products deri
133 sented chiral assay is able to determine the enantiomeric excess (ee) of D-cysteine in the whole rang
136 s were observed leading to variations in the enantiomeric excess (ee) of the chemisorbed layers with
137 influence the course of a reaction, with the enantiomeric excess (ee) of the product linearly related
138 been exploited for precise quantification of enantiomeric excess (ee) ratio (R/S) up to 99:1 in the p
142 eir chemical characterization and associated enantiomeric excess (ee) values are commonly reported.
144 idine-3-carboxylates from nitriles in 68-90% enantiomeric excess (ee) via allylboration, followed by
146 th dimethylmalonate can be catalyzed in high enantiomeric excess (ee) with a beta-turn-based ligand.
148 from 88 to 96% and in enantioselectivities (enantiomeric excess (ee)) ranging from 85 to 97%, with d
150 from irradiations of (R)-2 retain up to 31% enantiomeric excess (ee), but the ees of the same photop
151 mixtures to be analyzed for as little as 1% enantiomeric excess (ee), by simply recording the ratios
152 ical analysis of reaction parameters such as enantiomeric excess (ee), diastereomeric excess (de), an
156 ed syn-products (de = 60-99%), with moderate enantiomeric excesses (ee = 43-56%) but did not produce
157 afforded cyclization products at comparable enantiomeric excesses (ee's) and 4-7 times higher cataly
158 istribution, and scope of these amino acids' enantiomeric excesses (ee) have been frustrated by the r
160 The most pristine CRs also revealed natal enantiomeric excesses (ee) of up to 60%, much larger tha
162 sm (FT-VCD) to follow changes in the percent enantiomeric excess (% EE) of chiral molecules in time u
163 ot-mean-square error (rmse) in the predicted enantiomeric excess (%ee) of about 8.4 +/- 1.8 compared
165 t- (left-)handed twisted nanoribbons with an enantiomeric excess exceeding 30%, which is approximatel
166 nantioenriched alpha-branched amines (>/=96% enantiomeric excess) featuring two minimally differentia
167 lucidate the correlation between defects and enantiomeric excess, five characterization techniques (F
168 methylformamide) and observed an increase in enantiomeric excess for 1-phenylethanol of 35% with the
171 ure of H(2) caused a significant increase in enantiomeric excess for low catalyst loading reactions.
173 terms of product substrate scope and product enantiomeric excess) for the generation of enantioenrich
174 e conveniently prepared in one step and high enantiomeric excess from propionyl chloride, using a cat
175 nantioselectively, with yields of 21-74% and enantiomeric excesses from 6 to 64% at 50 degrees C.
180 enyl phosphines (1a-h) were prepared in high enantiomeric excess (>95% ee in most cases) by way of an
186 diastereomers of the Henry adduct with high enantiomeric excess, homochiral at the oxygen-bearing ca
187 sly from reaction mixtures, with an enhanced enantiomeric excess if initially enantioenriched, which
188 d the formation process could also result in enantiomeric excesses if the incident radiation is circu
190 demonstrate in principle how high levels of enantiomeric excess in a mixture of enantiomers can be q
191 measured value for Murchison is the largest enantiomeric excess in any meteorite reported to date, a
192 metric amplification-the development of high enantiomeric excess in biomolecules from a presumably ra
193 tant beta-nitroamines are obtained in 70-94% enantiomeric excess in good yield and can be readily red
194 ed on ion/molecule reactions for determining enantiomeric excess in mixtures of amino acids is illust
198 ropyl C-H bonds in high yields and with high enantiomeric excesses in the presence of a rhodium catal
205 zed asymmetric allylic alkylation yields 92% enantiomeric excess, matching prior solution-phase resul
207 s largest for erythrose, which may reach a D-enantiomeric excess of >80% with L-Val-L-Val catalyst.
210 e liquid chromatography purification, a high enantiomeric excess of (18)F-FDOPA ( approximately 97%)
214 ms are achieved in yields as high as 99% and enantiomeric excess of 97% under aqueous conditions at r
220 mination of the identity, concentration, and enantiomeric excess of chiral vicinal diols, specificall
221 es and could also significantly increase the enantiomeric excess of direct asymmetric synthesis and c
223 organic nanostructures obtained from growing enantiomeric excess of intrinsically chiral NCs or arran
225 ve linear model was applied to determine the enantiomeric excess of samples of two alcohols without a
226 easurements of both the total amount and the enantiomeric excess of several amino alcohols at micromo
227 of Leu, Pro, and Phe can be deduced from the enantiomeric excess of sublimates, the behavior of the k
230 g the QR(fixed) method for determinations of enantiomeric excess of the drug DOPA in the presence of
231 amplitudes of the specific Cotton effect and enantiomeric excess of the parent amine gives potentiali
236 vided strong evidence that the modulation of enantiomeric excess of the reaction product indeed stems
238 opure complex, alcohols are produced with an enantiomeric excess of up to 85% (S) at TOF up to 2000 h
240 nd seven-membered N-heterocyclic amines with enantiomeric excesses of >90% in many cases and up to 99
242 ne ethers that are axially chiral, very high enantiomeric excesses of cyclopentenone products are obs
243 cal distribution of d- and l-crystals, large enantiomeric excesses of either d- and l-crystals can be
244 accurately determine the concentrations and enantiomeric excesses of five unknown samples with an av
246 s and sugar acids (aldonic acids) with large enantiomeric excesses of the same chirality as terrestri
254 of 1-Endo with 3 was found to give 2 in high enantiomeric excess, regardless of pressure and at a rat
256 ite that provided the amination product with enantiomeric excess similar to the original, more struct
257 decreases the reaction rate, while affording enantiomeric excesses similar to the 1:1 BoxH:Ln case.
259 complex because it is enantiomer ratio, not enantiomeric excess, that directly reflects relative rat
261 into valuable chiral benzylic amines in high enantiomeric excess, thereby producing motifs found in p
263 timation of selectivity and determination of enantiomeric excess, through to control of regio- and st
264 and produced R-epoxypropane with comparable enantiomeric excess to AMO purified from the original or
265 e asymmetric reactions also impart increased enantiomeric excess to the final product in comparison w
267 This method provides high conversion and enantiomeric excess up to 84% of the desired chiral seco
277 e challenges to yield gamma-lactones in high enantiomeric excess (up to 99%) using hydrogen peroxide
280 MDee for an enzymatic method for determining enantiomeric excess, uses the lipase from Pseudomonas ce
283 n-time-dependent data for concentrations and enantiomeric excess values for substrates and [1,3] shif
287 gh-temperature/low-pressure conditions (-64% enantiomeric excess versus +89% enantiomeric excess); a
288 with up to 99% yield and in greater than 99% enantiomeric excess via dynamic kinetic resolution.
290 For a terminal 1,6-enyne, the incremental enantiomeric excess was found to increase from 4 to 26%
291 ith esters bearing alpha-stereocenters, high enantiomeric excess was maintained during ketone formati
294 r the syn or anti adduct selectively in high enantiomeric excess when an appropriate chiral ligand wa
295 exo/endo ratios and excellent diastereo- and enantiomeric excesses when in situ formed [Ir(I)/Tol-SDP
296 es (up to 99 per cent yield with 99 per cent enantiomeric excess), which otherwise are difficult to a
297 produce the vinyl iodide segment 17 in high enantiomeric excess, which was used in a key B-alkyl Suz
298 ssfully cross-coupled in excellent yield and enantiomeric excess with prior conversion of the pinacol
299 I) complexes generated products in 90 to 99% enantiomeric excess with the use of chiral binaphthol-de
300 ocess led to the expected product (up to 87% enantiomeric excess), with its reuse being possible at l