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Then they combine the resulting enantiomeric mixture of ammonium bromide salts with the chiral compound 1,1’-bi-2-napthol (BINOL). Depending on which isomer of BINOL the team puts in ...
The group’s straightforward approach can be used to deracemize mixtures of many types of chiral aldehydes.
The human body is so selective in its responses to chiral compounds that one isomer may produce a desired effect, while the other may be ineffective, and sometimes even toxic, so it is necessary ...
It is an important direction to develop efficient and convenient synthesis of chiral amines in organic synthetic chemistry. However, conventional catalytic synthesis methods, such as imine and ...
The technique relies on observation of the behavior of optical isomers. Molecules with the ... the NMR spectroscopy to decompose the signal of chiral activity of a compound. The research team ...
By incorporating electron-donating groups to the phenyl rings of imine linkages ... In this work, they further developed chiral organocatalytic functions based on these stable COFs.
Many drugs on the market today contain at least one molecule that is chiral. Often only one of the configurations, or isomers, is effective in the body. In some cases, the other isomer may even be ...
来自MSN7月
Chemists develop a metal-free way to selectively convert symmetrical diols into one of two ...More information: Antti S. K. Lahdenperä et al, A chiral hydrogen atom abstraction catalyst for the enantioselective epimerization of meso -diols, Science (2024). DOI: 10.1126/science.adq8029 ...
Trimerization of commercially available coprostanone (a steroid ketone with a cis A/B ring junction) by treatment with titanium tetrachloride yields this unusual, chiral, cleft-containing molecule.
(a) Schematic of imine bond formation ... time discovered the selective generation of three types of structural isomers (a set of different nanostructures with an identical chemical composition ...
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