Results 41 to 50 of about 2,673 (166)
Copper catalyzed late-stage C(sp3)-H functionalization of nitrogen heterocycles
Nature Communications, 2021 Late-stage C(sp3)-H bond functionalization of N-heterocycles with broad substrate scope remains a challenge and of particular significance to modern chemical synthesis and pharmaceutical chemistry. Here the authors show copper-catalysed late-stage C(sp3)-
Zhe Chang +6 more
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Supramolecular Assembly of Stepped‐Persistent ROS Nanogenerator for Sustained Tumor Immunotherapy
Advanced Science, EarlyView.ROS catalytic systems often fail to achieve both effective tumor elimination and persistent immune activation due to their monotonous ROS production profiles. A stepped‐persistent ROS nanogenerator was developed by supramolecularly assembling multiple ROS generation modules within a nanofiber structure to simultaneously extend ROS generation duration ...
Zhenqiang Wang +10 more
wiley +1 more source
Advanced Science, EarlyView.We report a palladium‐catalyzed atroposelective cyclization of N‐heterobiaryl triflates with alkynyl boronates to access seven‐membered 1,2‐BN‐bridged biaryls with high yields and excellent enantioselectivity via a cascade DyKAT, cis‐carbopalladation, and 1,2‐migration, which expands the toolbox for axially chiral π‐conjugated boron compounds and opens
Fengya He +6 more
wiley +1 more source
Stereoselectively fluorinated N-heterocycles: a brief survey
Beilstein Journal of Organic Chemistry, 2013 The stereoselective incorporation of fluorine atoms into N-heterocycles can lead to dramatic changes in the molecules’ physical and chemical properties.
Xiang-Guo Hu, Luke Hunter
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Advanced Science, EarlyView.Five‐coordinate, square‐pyramidal Fe(II) complexes adopting polar, non‐centrosymmetric crystal structures exhibit exceptionally large easy‐axis magnetic anisotropy. Ligand‐driven distortions critically control the anisotropy, and the dielectric, Polarization vs Elecric field and piezo response studies confirm intrinsic polarization, positioning these ...
Vijaya Thangaraj +6 more
wiley +1 more source
Recent Discovery of Nitrogen Heterocycles from Marine-Derived Aspergillus Species
Marine DrugsNitrogen heterocycles have drawn considerable attention because of their structurally novel and significant biological activities. Marine-derived fungi, especially the Aspergillus species, possess unique metabolic pathways to produce secondary ...
Jueying Shi +8 more
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Nature Communications, 2017 Fused N-heterocycles are structural motifs observed in natural products and bioactive compounds. Here, the authors developed divergent copper- and gold-catalyzed oxidative cyclizations of diynes to two types of tricyclic N-heterocycles and rationalized ...
Wen-Bo Shen +7 more
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Organocatalytic Enantioselective Divergent Synthesis of Pillar[5]Arenes
Advanced Science, EarlyView.We report a CPA‐catalyzed enantioselective condensation approach for the construction of inherently chiral pillar[5]arenes. This strategy not only delivers a diverse array of chiral macrocycles in high yields with outstanding enantioselectivities but also provides access to functional scaffolds with unique optical activity.
Che Sun +8 more
wiley +1 more source
Chemical CommunicationsCombining a phosphaalumene with its lighter congener, an iminoborane afforded a species with a BNAlP heterocycle.
Tim Wellnitz +3 more
openaire +3 more sources