1. Ahuja broadly reviews liquid phase chiral separations.

2. The enantiomeric separation of chiral drugs mexiletine and verapamil was investigated using cyclodextrins added buffers at acidic conditions in capillary zone electrophoresis.

3. Chiral aminoalcohol is an important kind of chiral substance in the asymmetric synthesis, meanwhile, it is widely used in the field of medicine synthesis and the resolution of raceme.

4. The study history of chiral enantiomorph was reviewed. The separation methods of chiral compounds were summarized. The recent development in separation methods was prospected.

5. Chiral amino alcohol is a kind of the ligand or catalyst with great potential for the development of catalytic asymmetric synthesis.

6. Circular dichroism spectra have been used to explain chiral molecular recognition.

7. A type of chiral molecular tweezers has been designed and synthesized by using diphenic acid as spacer and chiral unsymmetrically disubstituted urea as arm for the first time.

8. The applications of chiral medium in anti-radar, antenna engineering, fabricating components of microwaves and millimeter waves are very important.

9. Methods The S-(-)-timolol is prepared from a chiral synthon D-mannitol.

10. In this dissertation, optical rectification effect of chiral molecular medium is investigated based on classical model of chiral molecules.

11. Chiral imine 1 derived from (R) glyceraldehyde acetonide could rapidly react with ketenes 2 which was converted from mixed anhydride or acid chloride under mild conditions.

12. OBJECTIVE : To study chiral pharmacokinetics process of amlodipine enantiomers of rabbits in vivo.

13. The development of chiral engineering requires chiral analytical technologies with simple handling, low cost, high speed,() real time and on-line operation.

14. OBJECTIVE To study the interaction between the chiral drug of amlodipine besylate and human serum albumin(HSA).

15. Chiral amino alcohol has extensively applicates in the asymmetric synthesis and intermediate areas, and a lot of scientific research personnel have deep interests in it .

16. The preliminary results indicate that these chiral molecular tweezers not only recognize neutral molecules, but also show enantio-selectivity for D/L-amino acid methyl esters.

17. The research advances of the chiral ligands metal complexes catalysts used in asymmetric 1,3-dipolar cycloaddition reactions were reviewed in this paper.

18. The fundamental principle of ion mobility spectrometry and the recent progress in ionization source, miniaturization, Chiral separation, tandem use with GC and MS were summarized.

19. Now, the most important thing is to obtain one of the chiral drug enantiomers.

20. The reflection and transmission of coaxial waveguide partially filled with chiral media were solved by a method which combined the multimode network theory with a rigorous mode matching procedure.

20. Wish you can benefit from our online sentence dictionary and make progress every day!

21. The application of microbial transformation in the synthesis of pharmaceuticals , especially the recent advances in asymmetric synthesis of chiral drugs and biocatalytic methods, is reviewed.

22. The methods for synthesizing anticarcinogen taxol are introduced. The synthesis of chiral side chain of taxol and the significance of application of chiral side chain are described in detail.

23. Celiprolol enantiomer was resolved directly by using normal phase HPLC with urea derivative as chiral stationary phase (CSP).

24. In normal phase condition, the influence of temperature and mobile phase modifier on the chiral separation and retention were investigated.

25. The kinetic resolution of raceme is one of the important ways in the synthesis of chiral compounds.

26. The progress on supercritical fluid chromatography ( SFC ) using in preparative chiral pharmaceuticals is summarized.

27. However, the chemical resolution method is widely used to resolve chiral drugs.

28. Compared with its wider use in achiral separation, the application of MEEKC in chiral separation has been largely restricted due to the lack of suitable chiral selectors.

29. Such distinctive optical properties as opticity and selective reflection of chiral agent-doped PDLC have widely been applying in the field of light filter, grating, and reflective display, etc.

30. Direct Enantiomeric Separation of S, S- and R, R-N-(p-Toluenesulfony l)-1,2-diphenylethylenediamine on a Chiral Ovomucoid Column.

31. The X - ray crystal structures of three chiral molecular clips based on diethoxycarbonyl glycoluril were obtained.

32. According to WNW condition, a systematic analysis about the restraints from GUT on chiral three-preon model with confining weak interaction is discussed.

33. Osmuim-catalyzed asymmetric dihydroxylation reaction (AD reaction) of olefins, with cinchona alkaloid derivatives as chiral ligands, is the most effective method to obtain chiral vicinal diols.

34. Hydrolytic kinetic resolution ( HKR ) is an effective way for synthesis of chiral epichlorohydrin.

35. A cinchonine imprinted chiral monolithic column was prepared for the separation of the diastereomers of cinchonine and cinchonidine by in situ molecular imprinting technique.

36. Two N-monoalkyl and N-dialkyl novel chiral amino alcohol ligands with different configuration were prepared.

37. The present invention relates to 1, 2- substitute cyclopentadienyl ruthenium surface chiral ligand in the chemical field and the correspondence synthetic method.

38. Five pairs of carbazole derivative enantiomers were resoluted with a cellulose tris ( 3, 5 dimethyphenylcarbamate ) chiral column.

39. Results showed that racemic mixtures of naproxen ester could be separated on CTA chiral stationary phase.

40. A series of novel laterally O-difluoro-substituted terphenyl chiral liquid crystals have been synthesized through a simple route based on palladium-catalyzed cross-coupling reaction.

41. The invention discloses chiral diphosphine ligand, the synthesis method and application thereof.

42. Ligand exchange chromatography with chiral mobile phases was established for the separation of theanine enantiomers.

43. The present paper reviews the methods used in connection table for the presentation of stereochemistry, particularly for the chiral carbons and double bonds.

44. The research direction and main operation includes four parts: Medicine material and chiral compound, organic acid and its ramification, heterocyclic compound and customizes products.

45. One basic feature in QCD is chiral symmetry and its spontaneousbreaking.

46. L-tryptophan and L-tyrosine were used as chiral reagents on the covalent functionalization of MWNT. The product was characterized with SEM, FT-IR Spectrum and Electrochemical method.

47. The review is focused on the recent development of asymmertric synthesis of chiral epoxides by biocatalyzing prochiral alkenes.

48. Raceme resolution is the main route for preparation of chiral compounds.

49. This paper discusses the separation and purification of fullerene, the discovery of chiral configuration , molecular structure of C78, isomer of C84etc.

50. CBS catalyst is one kind of the important chiral catalysts in asymmetric reductions of prochiral ketones,[sentencedict .com] which have extremely high yield and optical yield.

51. Some chiral diols were also investigated as the ligands, with those derived from indene exhibiting better enantioselectivity.

52. Separations based on formation of diastereomeric ion-pairs were fulfilled in systems with an organic mobile phase using achiral and chiral stationary phases.

53. This paper presents the principle of measuring the chirality parameter of chiral materials in microwave circular waveguide.

54. Pharmacological interactions between the enantiomers may happen when a chiral drug was used as its racemate.

55. Rotundine was used as chiral auxiliary for NMR analysis of racemic carboxylic acids and it turned out to be an effective chiral solvating agent(CSA).

56. The chromatographic conditions were optimized using different alcohols as mobile phase modifier. The effect of temperature on chiral separation was investigated.

57. Recent advances in asymmetric hydrosilylation of prochiral carbonyl compounds catalyzed by chiral transition metal complexes are reviewed in this paper with47 references.

58. Objective:Expound chirality with chiral drugs concept and actual meaning of research.

59. For many years, the Lattice QCD's researchers were working hard try to solve the difficulties in the theory, e. g. the doubling of fermion and the breaking of chiral symmetry.

60. The cellulose triacetate (CTA) prepared by heterogeneous acetylation and coated on small pore 3 aminopropyl silica gel (10nm) was used as chiral stationary phase for HPLC (OA column).

61. To our knowledge, this was the first release about the efficient and practical resolution of axially chiral biaryl dials.

62. The chiral oxazaborolidines that formed by the reaction of the new ligands above with borane can be used in the asymmetry catalytic reaction prochiral ketones.

63. The turnover-limiting step for the asymmetric allylic oxidation is the formation of chiral catalyst-allyl perbenzoate complexes.

64. Abstract: Recent advances in asymmetric hydrosilylation of prochiral carbonyl compounds catalyzed by chiral transition metal complexes are reviewed in this paper with 47 references.

65. Polyacetylene (PA) is a symmetric chain of conjugated macromolecule, whose chain symmetry can, however, be broken by external and internal perturbations, generating helically chiral polymers.

66. In particular, the chiral phase transfer catalysts (PTC) have been almost limited to Cinchona alkaloid, such as Cinchonine (CN), Quinine (QN) and related compounds.

67. On account of above reasons, the national product of Penicillium expansum alkaline lipase were chosen to study its interaction with chiral phenoxy acid herbicides, 2,4-DP, MCPP and 2,4-DPM.

68. In this study, the chiral selectivity of arginase was investigated by means of molecular dynamics and molecular docking.

69. This review deals with the recent progress in asymmetric synthesis using chiral polymeric reagents and catalysts for oxidation, reduction, alkylation and addition of prochiral compounds.

70. The results show that this chiral stationary phase exhibits good stereoselectivity to the series of racemic sulfoxide enantiomers.

71. Therefore, D-hydantoinase is one of the crux enzymes in bioconversion of D-amino acids and becomes a hot field in the industrial production of chiral amino acids.

72. The study on the function of chiral metalloporphyrin complex in host-guest chemistry, stereo catalysis and photoelectrochemistry in recent years is reviewed.

73. Cholesteryl is a good chiral nematic phase mesogen because of its chirality.

74. Two kinds of dispersion equations are given and the relation between the cutoff frequency and core chiral admittance is studied.

75. The recent advances in external ligand-mediated addition of organometallic reagents to imines for the asymmetric synthesis of chiral amines are reviewed.

76. Recent advances in asymmetric hydrosilylation were reviewed in this article. The newest chiral ligands were reported. The future of research in asymmetric hydrosilylation was also predicted.

77. The invention provides oxazoline schiff base ligands and a preparation method thereof, which belongs to the technical field of chiral catalysts.

78. The advances on assembly and gas adsorption property studies of porous metal-organic frameworks are reviewed and the magnetic and chiral porous metal-organic frameworks are introduced.

79. The aim of this research is to study the stereoselectivity of photocyclization reaction in the act of chiral template.

80. The chiral catalysts employed in the AD reactions are complexes of osmium tetroxide with chiral ligands.

81. The preparation of single enantiotopic chiral compounds and the progress on biocatalytic preparation of chiral compounds are reviewed.

82. The resolution of racemic compounds by crural inclusion complexation reported in 47 references is reviewed with 47 references. The chiral recognition principles in inclusion complex is also discussed.

83. Bioactivity, toxicity,[sentence dictionary] metabolism and drug quality of the antimer of the chiral drugs are totally different.

84. But he does think that other chiral structures could find application in spintronics – if chirality is found to be the mechanism behind the filtering, that is.

85. Diastereomers of cinchonine and cinchonidine were fully separated both under isocratic and gradient elutions on the chiral monolithic column.

86. The key step of the syn thesis of chroman derivatives is to construct chiral chroman ring.

87. Chiral carbonyl iron systems have seldom been used in asymmetric transfer hydrogenation of aromatic ketones.

88. The merits and defects between bioprocess and chiral process were compared, and the effective, economic and reasonable process was selected.

89. Based on brief introduction about all kinds of chiral bis- oxazoline ligands, the application of their metal complexes to asymmetric synthesis in recent years was reviewed.

90. Asymmetric autocatalysis occurs when a chiral product operates as an asymmetric catalyst for its own production.

91. The development and the mechanism of stereochemical resolution of racemates, in HPLC, using a chiral stationary phase based upon immobilized enzymes, was reviewed with 22 references.

92. Comparing to the results in chiral SU(3) quark model, we find that two different short-range mechanisms can describe the H-particle similarly.

93. The present invention relates to a chelating chiral boric acid ester, its preparation method and application.

94. Allethrolone is an important intermediate in chiral synthesis of allethrin, so it is important to find out a good way to separate the enantiomer.

95. The synthesis and applications in catalytic asymmetric synthesis of C2-symmetric chiral bis (oxazoline) and its metal complexes are reviewed in this article.

96. The most efficient way to generate chiral sulfoxides is asymmetric oxidation of prochiral sulfides Catalyzed by chiral metal complexes.

97. Recent research progresses of method of preparation in chiral compound's racemate of amino acids were reviewed in this paper, the possible development future of it was predicted.

98. As the chiral source of asymmetric induction, the chiral ligands control the procedure of stereochemistry in reaction.

99. Pharmacological interactions between the enantiomers may happen when a chiral as its racemate.

100. Chiral amino acids are elements of semi-synthetic antibiotics, new herbicide, insecticide and bio-active peptides in chemosynthesis. They will have wider application prospects.

101. It afforded a practical method to synthesize chiral allylic amines.

102. The chiral HMPA analogues 1 and 2 were prepared in high yield by nucleophilic substitution between the chiral secondary amine and phosphoryl chloride.

103. Nitroaniline derivatives have been synthesized and there are 4 compounds having chiral atom in them.

104. Polyacetylene(PA) is a symmetric chain conjugated macromolecule, whose chain symmetry can, however, be broken by external and internal perturbations, generating helically chiral polymers.

105. The chiral catalysts employed in the AD and AA reactions are complexes of osmium tetroxide with the chiral ligands.

106. The cyclization reactions of carbodiimide 14 with chiral amide ethyl ester was firstly studied. The results showed that the carbodiimide 14 reacted quickly with amide ethyl ester at room temperature.

107. Optically active ethyl(S)-3-hydroxybutyrate, a useful chiral synthon, was prepared by stereoselective reduction of ethyl acetoacetate of the bread yeast in organic solvent.

108. This review describes recent advances in the synthesis of C_2-symmetric chiral bis (oxazoline) ligands and the utility of its metal complexes in the catalysis of asymmetric syn- thesis.

109. Two chiral P, N-ligands were synthesized in high yields from natural quinine and cinchonine under mild conditions.

110. Mobile phases may contain other components, e. g. a counter-ion for ion-pair chromatography or a chiral selector for chromatography using an achiral stationary phase.

110. is a online sentence dictionary, on which you can find good sentences for a large number of words.

111. Chiral supramolecular is a special supramolecular with chirality property and it has many applications in life science, pharmic and material science.

112. Many chiral drugs may differ in their pharmacological activities due to the difference of stereochemistry.

113. The target molecule was synthesized through using chiral reagent, reduction of double bond, hydrogenolysis and hydrolysis of ester group.

114. Results Chiral docetaxel C13 side chain was synthesized in 76% yield and 99% ee . The total yield of coupling and deprotecting reaction was 64%.

115. The mechanisms of the molecular recognition of chiral porphyrin while simulating the function of biomacromolecule are introduced.

116. The introduction of chiral center and lateral fluorines enable the liquid crystals to give unusual smectic textures.

117. A method is presented for the chiral separation of penicillamine enantiomers.

118. A series of chiral molecular imprinted polymer were synthesized from(R)-acryloyl-1-naphthylethylamine(1, chiral functional monomer) which was obtained from aromatic amine and acrylamide.

119. Optically active polymers, for its special chiral structure, can be used asymmetric synthesis.

120. Glycidol butyrate is an important chiral material and synthetic intermediate.

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