chiral造句
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.
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.
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