Results 101 to 110 of about 2,873,864 (246)

Synthesis and anticancer activity of podophyllotoxin derivatives with nitrogen-containing heterocycles. [PDF]

Front Chem, 2023
Yin M, Fang Y, Sun X, Xue M, Zhang C, Zhu Z, Meng Y, Kong L, Myint YY, Li Y, Zhao J, Yang X.   +11 more
europepmc   +1 more source

Isothiazologuanosine (tzG) as Environmentally Sensitive Fluorescent Reporter in RNA

Angewandte Chemie, EarlyView.
The emissive isothiazologuanosine analog tzG is synthesized for the first time as RNA phosphoramidite building block for solid‐phase synthesis. Due to its isomorphic and isofunctional characteristics, tzG forms Watson–Crick base pairs and can be used as fluorescent probe to monitor (deoxy)ribozyme activity.
Julia Dietzsch, Yitzhak Tor, Claudia Höbartner   +2 more
wiley   +2 more sources

The Role of Flow Chemistry on the Synthesis of Pyrazoles, Pyrazolines and Pyrazole-Fused Scaffolds

Molecules
Nitrogen-containing heterocycles are fundamental scaffolds in organic chemistry, particularly due to their prevalence in pharmaceuticals, agrochemicals and materials science.
Catarina M. Correia, Artur M. S. Silva, Vera L. M. Silva   +2 more
doaj   +1 more source

The Intramolecular Povarov Tool in the Construction of Fused Nitrogen-Containing Heterocycles. [PDF]

Top Curr Chem (Cham), 2023
Masdeu C, de Los Santos JM, Palacios F, Alonso C.   +3 more
europepmc   +1 more source

Indium Clusters With 6s2 Lone‐Pair Effect as Excitonic Electron Reservoirs for Direct 2e− Photocatalytic H2O2 Photosynthesis

Angewandte Chemie, EarlyView.
This study demonstrates that indium clusters with 6s2 lone‐pair effect anchored on carbon nitride act as excitonic electron reservoirs to boost charge separation and O2 activation for highly selective direct 2e− oxygen reduction. This work establishes cluster‐mediated electron reservoir engineering as a general strategy for enhancing selective ...
Shijie Xie, Teng Shao, Yuye Jiao, Yurou Song, Huijie Cheng, Yaru Shao, Tianyi Ma, Jungang Hou   +7 more
wiley   +2 more sources

Green Synthesis of Aromatic Nitrogen-Containing Heterocycles by Catalytic and Non-Traditional Activation Methods. [PDF]

Molecules, 2023
Vlocskó RB, Xie G, Török B.
europepmc   +1 more source

Pt‐Mediated Co‐Adsorption of Hydroxyl and Nitrogen‐Heterocyclic Species Over Cu/CuO Heterostructure Enhances Coupled Azotriazole Electrosynthesis and Dual‐Electrode Hydrogen Production

Angewandte Chemie, EarlyView.
Pt@Cu/CuO heterostructures were designed for electrochemical N─N coupling of 3,5‐diamino‐1H‐1,2,4‐triazole. Mechanism investigation revealed that the Pt sites mediated co‐adsorption of substrates and hydroxyl on Cu/CuO sites. The elaborate Pt@Cu/CuO achieved an ultralow working potential of 0.832 VRHE with a high FE of 95%. A long‐term stability of 600
Jiachen Li, Hanggu Su, Yuqiang Ma, Meng Li, Ruhao Zhang, Cihang Wang, Zihang Zhao, Jun Hu, Xiaogang Mu, Xuanjun Wang, Haixia Ma, Zhengxiao Guo   +11 more
wiley   +2 more sources

Visible‐Light‐Induced Hydrogen Generation from Mixtures of Hydrogen Boride Nanosheets and Phenanthroline Molecules

Advanced Science
Hydrogen boride (HB) nanosheets are recognized as a safe and lightweight hydrogen carrier, yet their hydrogen (H2) generation technique has been limited.
Jumpei Takeshita, Hayato Tsurugi, Andi Mauliana, Akira Yamaguchi, Takahiro Kondo, Masahiro Miyauchi   +5 more
doaj   +1 more source

Enantioselective additions of copper acetylides to cyclic iminium and oxocarbenium ions

Beilstein Journal of Organic Chemistry, 2015
The development of enantioselective, copper-catalyzed alkynylations of cyclic iminium and oxocarbenium ions is reviewed. The use of chiral copper-based catalysts has enabled high yields and enantioselectivites in the formation of nitrogen- and oxygen ...
Jixin Liu, Srimoyee Dasgupta, Mary P. Watson   +2 more
doaj   +1 more source

Interesting Mechanistic Approach for Nitrogen Heterocycles of Industrial Importance

, 2018
Nitrogen heterocycles have played an important role in different industrial sectors.Porphyrins the macrocyclic compounds containing pyrrole rings provide an extremely versatile platform with desired peripheral functionality and metal complexes to form ...
K.Z. Khan, N.D. Zargar
core   +1 more source