Results 81 to 90 of about 340,649 (242)

Ullmann‐Type N‐Heteroarylation of Nitrogen Heterocycles Catalyzed by Heterogeneous CuNPs/HKUST‐1

EcoEnergy, EarlyView.
A practical strategy for the direct synthesis of CuNPs/HKUST‐1 heterogeneous catalyst was developed and used for the catalyzing Ullmann‐type N‐arylation of N‐heterocycles with high yields, excellent recyclability, and low copper leaching. ABSTRACT Ullmann‐type C–N coupling is an essential reaction to construct functional nitrogen heterocycles, whereas ...
Shuai Yang, Fangshu Han, Yamin Dong, Liangting Wu, Wenchao Tang, Changyan Guo, Jide Wang, Ablimit Abdukader, Chenjiang Liu, Yonghong Zhang   +9 more
wiley   +1 more source

Current progress in synthetic and medicinal chemistry of pyrazole hybrids as potent anticancer agents with SAR studies

Future Journal of Pharmaceutical Sciences
Background One of the most serious and potentially hazardous diseases that trouble the globe today is cancer. Among various cancer treatment options, chemotherapy is currently one of the most efficient ways to remove cancer.
Bhupender Nehra, Manoj Kumar, Viney Chawla, Pooja A. Chawla   +3 more
doaj   +1 more source

The pyrazole derivative of usnic acid inhibits the proliferation of pancreatic cancer cells in vitro and in vivo. [PDF]

Cancer Cell Int, 2023
Gimła M, Pyrczak-Felczykowska A, Malinowska M, Hać A, Narajczyk M, Bylińska I, Reekie TA, Herman-Antosiewicz A.   +7 more
europepmc   +1 more source

1-Methyl-1 H-pyrazole-5-carboxamide derivatives exhibit unexpected acute mammalian toxicity

, 2021
1-Methyl-1 H-pyrazole-5-carboxamide derivatives exhibit unexpected acute mammalian ...
LG Hall (14447421), TG Le (14447427), A Jabbar (11009766), S Preston (11009760), NH Nguyen (14030679), A Ghoshal (13471801), L Xue (5099372), MJ Palmer (14447433), TNC Wells (14447430), A Kundu (7742117), BCH Chang (23211), B Ruan (13471804), SD Martin (14447424), Sean Mcgee (13095276), RB Gasser (9888092), JB Baell (11036820), F Huang (7708547), J Garcia-Bustos (13423461), Y Jiao (13446369)   +18 more
core  

Synthesis of Zwitterionic Tris(pyrazolyl) Ligands and Their Mn(II) Bis‐Chelates Exhibiting Charge–Transfer‐Induced Spin Crossover

European Journal of Inorganic Chemistry, EarlyView.
In this article, a series of zwitterionic scorpionate ligands based on the anionic tris‐(pyrazolyl)borate ligand scaffold is presented. These ligands are used to prepare bis‐chelates with divalent manganese ions. The resulting complexes are studied via magnetic, crystallographic, and electrochemical means to characterize the charge–transfer‐induced ...
Matthew C. Kessinger, Tzu‐Ching Cheng, Cameron Brillhart, Sreenivasulu Chinnabattigalla, Carla Slebodnick, Amanda J. Morris   +5 more
wiley   +1 more source

The synthesis and evaluation of 3-benzoylbenzofurans and their pyrazole derivatives against HIV-1 infections and cancer

International Journal of Infectious Diseases
Introduction: The human immunodeficiency virus-1 (HIV-1) remains one of the leading global epidemics in the world. The HIV/AIDS epidemic is particularly dominant in Eastern and Southern Africa, as is evident by the 670 000 annual new infections in this ...
Ms Sinothile Khuzwayo, Dr Mamoalosi A Selepe, Prof. Debra Mayer, Dr Ntombenhle Hlengiwe Gama   +3 more
doaj   +1 more source

Synthesis of fluorescently labeled pyrazole derivative induceing a triple response in Arabidopsis seedlings. [PDF]

J Pestic Sci, 2022
Oh K, Jiang K.
europepmc   +1 more source

The Expanding Role of Diazirines in Synthetic Methodology

European Journal of Organic Chemistry, EarlyView.
Beyond their established role in photoaffinity labeling, diazirines have emerged as versatile reagents in synthetic chemistry. This review highlights their dual reactivity as carbene and nitrogen‐transfer precursors, showcasing mechanistic insights and diverse applications in cyclopropanations, cycloadditions, skeletal editing, amination, heterocycle ...
Viktor Savic, Dominik Schnalzer, Marko D. Mihovilovic, Michael Schnürch   +3 more
wiley   +1 more source

Dichlorido{N,N,N′-trimethyl-N′-(1H-pyrazol-1-yl-κN2)methyl]ethane-1,2-diamine-κ2N,N′}copper(II) methanol monosolvate

IUCrData, 2019
In the title compound, [CuCl2(C9H18N4)]·CH3OH, the central CuII ion is coordinated by three N atoms from the pyrazole derivative ligand and two chloride co-ligands. The coordination geometry around the CuII ion is distorted trigonal–bipyramidal.
Ravindra Singh, Akram Ali, Md. Serajul Haque Faizi, Roona Singh, Turganbay S. Iskenderov, Necmi Dege   +5 more
doaj   +1 more source

Experimental and Theoretical Tests on the Corrosion Protection of Mild Steel in Hydrochloric Acid Environment by the Use of Pyrazole Derivative. [PDF]

Materials (Basel), 2023
Boudalia M, Fernández-Domene RM, Guo L, Echihi S, Belghiti ME, Zarrouk A, Zarrouk A, Bellaouchou A, Guenbour A, García-Antón J.   +9 more
europepmc   +1 more source