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1 for (14R, 15S)-epoxyeicosatrienoic acid (76% optical purity).
2 m quaternary stereocenter, in high yield and optical purity.
3 ion operations on intermediates to raise the optical purity.
4 opargylic fluorides, respectively, with high optical purity.
5 ective for the generation of BINOL with high optical purity.
6 ange of chiral arylaliphatic acids with high optical purity.
7  of pharmaceutical importance with excellent optical purity.
8 o generate allenes in good yield and in high optical purity.
9 n nearly quantitative yield, without loss of optical purity.
10 ld be recovered in 95% yield with no loss in optical purity.
11 s to obtain the desired S-enantiomer in high optical purity.
12  3c) were asymmetrically synthesized in high optical purity.
13 d to the corresponding alcohols in excellent optical purity.
14 nantiomeric composition and was equated with optical purity.
15 tom led to the cyclization product with high optical purity.
16 ti-Prelog configurated alcohols in excellent optical purity.
17 ree conditions, affording products with high optical purity.
18  acid target compound in >99.9% chemical and optical purity.
19 alyte is only available in one form of known optical purity.
20  to excellent chemical yield without loss of optical purity.
21 ich affords both enantiomers of each in high optical purity.
22 abolite (S)-cotinine were prepared with high optical purity.
23 d alcohols can be coupled without erosion of optical purity.
24 , which was converted to 7 with retention of optical purity.
25  1 were derived from l-pipecolic acid in 96% optical purity.
26 alcohol derivatives in good yields with high optical purity.
27 o produce a synthesis intermediate with high optical purity.
28 ounts for the lack of erosion of the initial optical purity.
29 are valuable synthetic intermediates in high optical purity.
30 BINOL derived geminal dinitriles, preserving optical purity.
31 om temperature without a significant loss of optical purity.
32 ve cyclization can be accomplished with high optical purities.
33 ven-membered heterocyclic products with high optical purities.
34 o-beta-hydroxy ester diastereomers with high optical purities.
35 ctive cyclopropanes can be reacted with high optical purities (89-98% enantiomeric excess).
36 rnished in exceptional conversions (88%) and optical purity (99% ee) and serves as an intermediate fo
37 intermediates of CBI in good conversions and optical purity (99% ee), and provided an alternative app
38 ranslates into high diastereoselectivity and optical purity alike.
39 ith vicinal quaternary stereocenters in high optical purity and as single diastereoisomers is now rep
40 l nonracemic biaryl compounds with excellent optical purity and good isolated chemical yields (in mos
41 ovide alpha-hydroxy acids and esters in high optical purity and good yields.
42            The products are obtained in high optical purity and in reasonable to good yield.
43  or (S)-beta-hydroxy nitriles with excellent optical purity and yield.
44 anthanide shift reagent Eu(fod)(3) indicated optical purity, and the (4S,2'R)-configuration was assig
45 rmation of (8R,9S)-epoxyeicosatrienoic acid (optical purities are 91 and 90% for CYP2N1 and CYP2N2, r
46 ly) and (11R, 12S)-epoxyeicosatrienoic acid (optical purities are 92 and 70% for CYP2N1 and CYP2N2, r
47  of configuration and no apparent erosion of optical purity as determined by single-crystal X-ray ana
48 iCH(2), and p-Me(3)SiC(6)H(4)) with the same optical purity at the alpha carbon.
49  were obtained on a multigram scale in > 99% optical purity by optical resolution of the racemate wit
50  moderate ee can readily be enriched to near optical purity by selective racemate crystallization.
51 sm access to novel chemical bouquets of high optical purity by utilizing existing enzymes.
52  alcohols, experience very little erosion of optical purity by way of redox equilibration under the c
53 tive stereochemistry as well as the changing optical purity can be effectively rationalized by transi
54  of the fragment ion abundance ratio and the optical purity, characteristic of the kinetic method, al
55 mount (sergeants and soldiers effect) or the optical purity (diluted majority-rules effect) of the en
56 of a beta-keto tertiary amide, which retains optical purity enabled by A(1,3)-strain rendering slow e
57 arallel with conventional chemistry and high optical purity for complex compounds with multiple chira
58 (>20:1 in all cases examined), no erosion in optical purity for proximal stereogenic centers, and a t
59 carboxylate iodides were synthesized in high optical purities from (R)-(-) and (S)-(+)-1,4-dihydro-2,
60 s and proceeds in 83% overall yield and >99% optical purity from readily available starting materials
61 lly active oxiranes can be coupled with high optical purities (>96% ee).
62 entanedioic acid 3, were synthesized in high optical purities (>97%ee).
63 mers in high yield (>92%) and with excellent optical purity (>95% ee).
64 titative conversion, 86% yield and excellent optical purity (>99% ee) of the corresponding (R)-alcoho
65 -cis state in which structural integrity and optical purity have been retained.
66 ablished synthetic procedures due to loss of optical purity in the key step, i.e., the Barton-Kellogg
67 re also shown to be important for preserving optical purity in these reactions.
68 amino acid was synthesized in high yield and optical purity in three steps from readily available sta
69 amines with high deuterium incorporation and optical purity, including examples of chiral deuterated
70  of the fragment ion abundance ratio and the optical purity (intrinsic to the kinetic method) allows
71                                          The optical purities of the final monomers were determined t
72 showed that crosslinked SCRII gave a product optical purity of 100% and a yield of >99.9% within 3 h,
73 ications of the present systems in analyzing optical purity of chiral substrates, enantiomeric excess
74              The absolute configurations and optical purity of compounds (-)-11, (-)-12, (+)-11, and
75 e observed for alkyl-substituted imines, the optical purity of the aziridines from all of the imine s
76 lective transformation (CIDT) to enhance the optical purity of the key target intermediate, dihydroar
77  and depends on the type of substituent, the optical purity of the sample, and the presence of a seco
78                As revealed by HPLC analysis, optical purity of the stereochemically labile alpha-amin
79 to guarantee selectivity of the reaction and optical purity of the target compounds, simplifying the
80 traenoic acid (>/=99% of total products, 97% optical purity), P450BM-3 is only moderately regioselect
81 enoic acids (26 and 69% of total, 94 and 96% optical purity, respectively).
82 D-phenylalanines in high yield and excellent optical purity, starting from inexpensive cinnamic acids
83  herein afford various cyclic amines of high optical purity; such products are not easily accessed by
84 o-aminoalkenes provides products with higher optical purities than obtained with N-proteo-aminoalkene
85 anes to be made selectively and in excellent optical purity, this transformation also marks a rare ca
86 es only one sample of the analyte with known optical purity to allow construction of a calibration cu
87 tationary phase in good yields and excellent optical purities (up to 99.5% ee).
88 uaternary arylglycines were prepared in high optical purity (up to 98% ee) by alpha-alkylation of dep
89 synthesized with excellent E-selectivity and optical purities via Pd-catalyzed alkene isomerization f
90 arylethanols were synthesized with excellent optical purity via enzymatic reduction of the correspond
91 roach, with a minimal erosion of the initial optical purity when using enantioenriched substrates.
92 2'R) enantiomers of 1 were obtained in > 99% optical purity while the (2S,2'S) and (2R,2'S) enantiome
93 -sparteine and O'Brien's diamine give higher optical purities with VANOL and VAPOL than with BINOL, a
94 een synthesized in five steps with excellent optical purity with approximately 99% ee and >99% de.