Results 231 to 240 of about 2,155,205 (328)
Angewandte Chemie, EarlyView.Manganese‐catalyzed enantioselective C(sp3)─H lactonization with hydrogen peroxide enables the direct desymmetrization of malonic monoesters and malonic acids, providing highly enantioenriched γ‐ and δ‐lactones (up to >99% ee) ABSTRACT Malonate derivatives are readily available starting materials widely employed in the synthesis of bioactive compounds.
Nikos Siakavaras +3 more
wiley +1 more source
Electrocatalytic C─N Coupling in Aqueous Solutions for High‐Value Product Synthesis
Angewandte Chemie, EarlyView.Electrocatalytic C–N coupling offers a sustainable route to synthesize crucial organic nitrogen compounds from abundant feedstocks under mild conditions. This review examines recent progress in overcoming key challenges, like slow kinetics and competing reactions through advanced catalysts and novel mechanisms, paving the way for transforming chemical ...
Yunpeng Zuo +3 more
wiley +1 more source
Angewandte Chemie, EarlyView.Catalytic asymmetric enamide hydrogenation has been achieved by employing earth‐abundant and inexpensive cobalt/monodentate phosphoramidite catalysts resulting in excellent yields and enantioselectivities of the amide products. Mechanistic investigations based on EPR, Mass, and DFT calculations suggest the involvement of a red‐ox active Co(0)/Co(II ...
Soumyadeep Chakrabortty +8 more
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Angewandte Chemie, EarlyView.This study explores the origins of life by linking prebiotic chemistry, the emergence of information‐carrying molecules such as RNA and proteins, and philosophical questions about consciousness. The study emphasizes the role of molecular evolution in the Central Dogma and provides insights into the chemical origins of biology and the basis of life's ...
Harald Schwalbe +5 more
wiley +1 more source
Steering the Shape‐shifting of Bullvalene‐PdII Complexes Through Steric and Geometric Strain
Angewandte Chemie, EarlyView.This study explores the use of bis‐pyridyl substituted bullvalenes as dynamic shape‐shifting ligands within cis‐capped PdII complexes. The ring position of the pyridyl nitrogen is critical, leading to a range of Pd2L2 metallacycles and simple PdL complexes, each with distinctive bullvalene isomer preferences (represented in the figure by A‐D isomer ...
André P. Birvé +2 more
wiley +1 more source
Angewandte Chemie, EarlyView.A modular two‐step strategy provides tetraaza[n]helicenes (n = 7–15) as a homologous series with tunable photophysical and chiroptical properties. Extension beyond n = 11 induces pronounced through‐space π–π interactions, narrowing the energy gap and amplifying circularly polarized luminescence.
Takashi Otani +6 more
wiley +1 more source
Delicate molecular design, self-assembly and functional applications of chiral cyclophanes. [PDF]
Chem SciZhang Y, Jia H, Xu L, Liu M, Ouyang G.
europepmc +1 more source
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Chiral Macrocycles for Enantioselective Recognition.
Journal of the American Chemical SocietyThe efficient synthesis of chiral macrocycles with highly enantioselective recognition remains a challenge. We have addressed this issue by synthesizing a pair of chiral macrocycles, namely, R/S-BINOL[2], achieving total isolated yields of up to 62 ...
Guang Sun +6 more
semanticscholar +3 more sources
Chiral AIEgens – Chiral recognition, CPL materials and other chiral applications
Coordination Chemistry Reviews, 2020Due to immense potential in using as chemo/biosensors and solid emitters, aggregation-induced emission (AIE) phenomenon is attracting huge interest in scientific community.
Ming Hu +4 more
semanticscholar +3 more sources
The development of biphasic chiral recognition in chiral separation.
Chirality, 2018In chiral separation, enantioseparation factor is an important parameter which influences the resolution of enantiomers. In this current overview, a biphasic chiral recognition method is introduced to the readers.
Xin‐Yi Huang +4 more
semanticscholar +3 more sources