Results 211 to 220 of about 35,698 (262)

Continuous-flow carbonyl hydrogenation under subatmospheric to atmospheric hydrogen pressure enabled by robust heterogeneous Pt-Fe catalysts. [PDF]

Beilstein J Org Chem
Miyamura H, Kajiyama R, Onozawa SY, Kon Y, Kobayashi S.   +4 more
europepmc   +1 more source

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Reconfigurable Plasmonic Diastereomers Assembled by DNA Origami

ACS Nano, 2019
Herein, we report self-assembled reconfigurable plasmonic diastereomers based on DNA nanotechnology. Up to three plasmonic chiral centers were organized by dynamic DNA origami platforms. Meanwhile, each chiral center could be individually controlled to switch between left-handed and right-handed states. Thus, complex and reconfigurable chiral plasmonic
Meng Wang, Chao Zhou, Weihai Ni
exaly   +3 more sources

Diastereomers and Low-Temperature Oxidation

The Journal of Physical Chemistry A, 2021
Diastereomers have historically been ignored when building kinetic mechanisms for combustion. Low-temperature oxidation kinetics, which continues to gain interest in both combustion and atmospheric communities, may be affected by the inclusion of diastereomers in radical chain-branching pathways.
Aaron D. Danilack, Clayton R. Mulvihill, Stephen J. Klippenstein, C. Franklin Goldsmith   +3 more
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Crystallization-Induced Diastereomer Transformations

Chemical Reviews, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Karel M J, Brands, Antony J, Davies
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Chromatographic behaviour of diastereomers

Journal of Chromatography A, 1977
For diastereomers of the types RM values on silica gel are investigated as a function of the mole fraction of the more polar solvent in binary solvent systems, according to Soczewinski's method. The correlation between RF and pKa is discussed, and thin-layer chromatographic comparison between acyclic and cyclic compounds is made.
M.D. Palamareva, B.J. Kurtev, M.A. Haimova   +2 more
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Constellational diastereomers in encapsulation complexes

Chemical Communications, 2004
Three chiral guests in a cylindrical capsule led to six diastereomeric complexes.
Masamichi, Yamanaka, Julius, Rebek
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Plasmonic Diastereomers: Adding up Chiral Centers

Nano Letters, 2013
We construct chiral plasmonic molecules by assembling two individual chiral centers. Interestingly, depending on the exact arrangement of the centers, all combinations result in a chiral compound with a strong chiral optical response. Furthermore, we demonstrate that the overall circular dichrosim (CD) is determined by the response of the individual ...
Hentschel, M., Schäferling, M., Metzger, B., Giessen, H.   +3 more
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Atropisomerism of diastereomer diribonucleoside phosphotriester

Chinese Chemical Letters, 2013
Abstract Linear diribonucleoside phosphotriester is an important intermediate for synthesizing biologically important compounds, such as cyclic bis(3′–5′) diguanylic acid (c-di-GMP) and its analogues. Atropisomerism of diastereomers generated by the chiral center of the P atom, which results in the doubling of signals in 31 P NMR.
Lu-Xin Na, Xu-Lin Sun, Meng Wang, Kun-Feng Li, Lei Xing, Zhuo Chen, Zhu Guan, Zhen-Jun Yang   +7 more
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Preparation of Dolutegravir Intermediate Diastereomer

Journal of Heterocyclic Chemistry, 2019
A convenient method was developed to prepare the diastereomer of dolutegravir tricyclic intermediate in the catalysis of EDCI/DMAP in up to 87% yield. Different solvents, temperature, and times were optimized. The synthesized diastereomer 6′ could be used as a standard for the industrial manufacture requirement of dolutegravir active pharmaceutical ...
Xianheng Wang, Song Chen, Changkuo Zhao, Liangye Long, Yuhe Wang   +4 more
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Synthetic Routes towards Cryptophycin Unit A Diastereomers

Synlett, 2008
Unit A of cryptophycin 1 is a delta-hydroxy acid with four stereogenic centres. Our unit A synthesis introduces the first two stereogenic centres by a catalytic, asymmetric dihydroxylation, whereas the remaining two stereogenic centres are established by diastereoselective reactions.
Eissler, Stefan, Neumann, Beate, Stammler, Hans-Georg, Sewald, Norbert   +3 more
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