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Defect Engineering Activates Pyrene‐Based Covalent Organic Frameworks for Efficient Photocatalytic Uranium Capture

Advanced Science, EarlyView.
A defect‐engineered pyrene‐based covalent organic framework (TP‐PYTO‐SA) is developed via strategic salicylaldehyde incorporation. This approach simultaneously enhances hydrophilicity and introduces uranyl coordination sites, while optimized defect density significantly improves charge separation.
Weikun Yao, Guanbing Zhou, Tao Liu, Yihui Yuan, Hui Wang, Ning Wang   +5 more
wiley   +1 more source

Biomimetic Membrane Interface Technologies for Detection and Isolation of CTCs and EVs: Advances and Opportunities in Liquid Biopsy

Advanced Science, EarlyView.
Biomimetic membrane interface engineering constructs functionalized detection platforms by integrating natural cell membranes, synthetic lipids, or hybrid membranes. This strategy effectively reduces background interference and enables efficient target capture and analysis, showing broad applications in circulating tumor cell separation, extracellular ...
Duo Liu, Jie Yu, Jingxue Li, Yixue Chen, Mengle Peng, Yifan Xu, Yongjun Wu, Lihua Ding, Sitian He   +8 more
wiley   +1 more source

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Asymmetric Heterogeneous Catalysis

Angewandte Chemie International Edition, 2006
AbstractLimited natural resources and an increasing demand for enantiomerically pure compounds render catalysis and especially heterogeneous asymmetric catalysis a key technology. The field has rapidly advanced from the initial use of chiral biopolymers, such as silk, as a support for metal catalysts to the modern research areas.
Maja, Heitbaum, Frank, Glorius, Iris, Escher   +2 more
openaire   +2 more sources

Asymmetric Enamine Catalysis

Chemical Reviews, 2007
The catalysis by primary and secondary amines of electrophilic substitution reactions in the α-position of carbonyl compounds and related reactions via enamine intermediates is called enamine catalysis. To a large degree this chemistry can be considered the catalytic variant of the classical preformed enamine chemistry (Scheme 1) pioneered by Stork. In
Mukherjee, S., Yang, J., Hoffmann, S., List, B.   +3 more
openaire   +3 more sources

Asymmetric Electrochemical Catalysis

Chemistry – A European Journal, 2019
AbstractAsymmetric electrochemical catalysis, an emerging frontline in asymmetric catalysis and electro‐organic synthesis, is summarized. Representative works are classified, with respect to the external chiral resources, including chiral media, chiral mediator, chiral catalyst, and chiral electrode.
Qifeng Lin, Longji Li, Sanzhong Luo
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Asymmetric Counteranion‐Directed Catalysis.

ChemInform, 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.
Mayer, S., List, B.
openaire   +3 more sources

Heterogeneous asymmetric catalysis

Pure and Applied Chemistry, 2004
Abstract Examples of enantioselective catalysts, including homogeneous supported catalysts and biphasic liquid/liquid, are described and compared. In the case of asymmetric hydride transfer, polythiourea was proven to be more efficient for ruthenium-catalyzed reduction of arylketones, although the iridium complexes gave rise to higher ee
openaire   +4 more sources

Cooperative Asymmetric Cation-Binding Catalysis

Accounts of Chemical Research, 2021
Asymmetric cation-binding catalysis in principle enables the use of (alkali) metal salts, otherwise insoluble in organic solvents, as reagents and effectors in enantioselective reactions. However, this concept has been a formidable challenge due to the difficulties associated with creating a highly organized chiral environment for cations and anions ...
Amol P. Jadhav, Sang Yeon Park, Ji-Woong Lee, Hailong Yan, Choong Eui Song   +4 more
openaire   +3 more sources

Stereodivergence in Asymmetric Catalysis

Journal of the American Chemical Society, 2017
This Perspective presents an overview of catalytic enantioselective transformations that allow convenient access to all stereoisomers of a given product with multiple stereogenic centers. Particular focus is placed on discussion of the concept of stereodivergent dual catalysis and its application in target-oriented synthesis.
Simon Krautwald, Erick M. Carreira
openaire   +2 more sources

Multifunctional Asymmetric Catalysis

2000
The development of catalytic asymmetric reactions is one of the major areas of research in the field of organic chemistry. So far, a number of chiral catalysts have been reported, and some of them have exhibited a much higher catalytic efficiency than enzymes, which are natural catalysts (Herrmann and Cornils 1996; Noyori 1994; Ojima 1994; Bosnich 1986;
openaire   +2 more sources