chiral造句
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.
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.
12345