Results 121 to 130 of about 23,538 (226)

Regioselective Cyclic Iminium Formation of Ugi Advanced Intermediates: Rapid Access to 3,4-Dihydropyrazin-2(1H)-ones and Other Diverse Nitrogen-Containing Heterocycles. [PDF]

Molecules, 2023
Cankařová N, Krchňák V.
europepmc   +1 more source

2‐Azaazulenium Hemicyanine Dyes for NIR‐II Multimodal Imaging and Combined Phototherapy

Angewandte Chemie, EarlyView.
A strategically engineered class of 2‐azaazulenium hemicyanines is developed, featuring bright fluorescence in the second near‐infrared (NIR‐II) window and multifunctional performance. SWJT‐OCH3 shows type I/II reactive oxygen species (ROS) generation and excellent photothermal activity.
Min Peng, Bing‐Ya Wang, Hai Xu, Qiang Wang, Rong‐Dan Xiao, Rui Tan, Yu Peng, Ya‐Wen Wang, Juyoung Yoon   +8 more
wiley   +2 more sources

Nitrogen-Containing Heterocycles as Significant Molecular Scaffolds for Medicinal and Other Applications. [PDF]

Molecules, 2021
Frank É, Szőllősi G.
europepmc   +1 more source

Three Component Thio‐ and Carboboration of Alkynes: A Modular Route to Functionalised Bicyclic Boronates

Angewandte Chemie, EarlyView.
Three‐component thio‐ and carbo‐boration reactions to form functionalised benzoxaborinines and benzazaborinines are reported. The nucleophile scope includes thioethers, thiols, and (hetero)arenes. Mechanistic studies revealed a disparity between thioboration using thioethers and using thiols.
Laura Winfrey, Gary S. Nichol, Stephen P. Thomas, Dominic R. Willcox, Michael. J. Ingleson   +4 more
wiley   +2 more sources

Simple Copper Salt-Catalyzed N-Arylation of Nitrogen-Containing Heterocycles with Aryl and Heteroaryl Halides

, 2016
Relatively mild and highly efficient CuI-catalyzed N-arylation procedures for nitrogen-containing heterocycles (e.g., imidazoles, benzimidazoles, pyrroles, pyrazoles, indoles, triazoles, etc.) with aryl and heteroaryl halides have been developed.
Jingsong You (1397368), Liangbo Zhu (2388235), Gaocan Li (2388238), Rugang Xie (2410588), Peng Guo (134478), Jingbo Lan (1452568)   +5 more
core   +1 more source

Correction: Nano copper(i) oxide/zinc oxide catalyzed N-arylation of nitrogen-containing heterocycles with aryl halides and arylboronic acids in air. [PDF]

RSC Adv, 2022
Hosseini-Sarvari M, Moeini F.
europepmc   +1 more source

π‐Extended COUPY Fluorophores for Targeted Near‐Infrared Fluorescence and Lifetime Imaging in Live Cells

Angewandte Chemie, EarlyView.
π‐Extended COUPY dyes, obtained by vinylogation of coumarin‐based COUPY scaffolds, shift absorption, and emission deep into the NIR region while preserving compactness and synthetic accessibility. These bright, photostable dyes enable live‐cell imaging, FLIM, and site‐specific peptide conjugation, offering a modular platform for targeted bioimaging and
Diego Abad‐Montero, Manel Bosch, Rodrigo Garcés‐Castellanos, Michael Q. Schottenhamel, Sergio Pedraza‐Arevalo, Alejandro Ibáñez‐Costa, Justo P. Castaño, Tania García‐Becerra, Elena Rebollo, Marta E. Alberto, Antonio Francés‐Monerris, Vicente Marchán   +11 more
wiley   +2 more sources

A Mononuclear Ruthenium(V)‐Imido Complex With Hydrogen Bonding in the Second Coordination Sphere Forming Aziridines Without N‐Substituents From Alkenes in Water

Angewandte Chemie, EarlyView.
This study employs a RuV═NH complex with hydrogen‐bonding (HB) sites in the SCS to afford non‐N‐substituted aziridines selectively. Nitrogen‐atom transfer occurs from the RuV═NH complex to alkenes in water to produce aziridine derivatives in high yields.
Tomoya Ishizuka, Chisato Ogawa, Yoshihito Shiota, Shunsuke Nozawa, Hiroaki Kotani, Shin‐ichi Adachi, Kazunari Yoshizawa, Takahiko Kojima   +7 more
wiley   +2 more sources

Assessment of DFT functionals for calculating intermolecular interaction of nitrogen-containing heterocyclic complexes

, 2017
Nitrogen-containing heterocyclic complexes are important parts of many biological molecules including DNA, RNA, proteins and drug molecules, which often have weak intermolecular interactions.
Yun Wang, Guo, Tingting, Tingting Guo, Yin, Shiwei, Shiwei Yin, Wang, Yun   +5 more
core   +1 more source

Quantitative evaluation of H-donating abilities of C(sp³)-H bonds of nitrogen-containing heterocycles in hydrogen atom transfer reaction. [PDF]

RSC Adv, 2023
Fu YH, Jia T, Shen GB, Zhu XQ.
europepmc   +1 more source