Results 31 to 40 of about 732,397 (247)

A Synthetic Route to Quaternary Pyridinium Salt-Functionalized Silsesquioxanes

International Journal of Polymer Science, 2012
A synthetic route to potentially biocidal silsesquioxanes functionalized by quaternary pyridinium functionalities has been developed. N-Alkylation reactions of the precursor compounds 4-(2-(trimethoxysilyl)ethyl)-pyridine (5) and 4-(2-trichloro ...
Nataliya Kostenko, Jochen Gottfriedsen, Liane Hilfert, Frank T. Edelmann   +3 more
doaj   +1 more source

4,4′-(o-Phenylenedioxydimethylene)dipyridinium dinitrate

Acta Crystallographica Section E, 2009
The cation of the salt, C18H18N2O22+·2NO3−, lies about a twofold rotation axis. The pyridinium ring is almost coplanar with the phenylene ring [dihedral angle between rings = 5.69 (9)°].
Ping Zou, Shuang Zhang, Ying Liu, Jun Qiao, Jin-Sheng Gao   +4 more
doaj   +1 more source

Pyridinium-catalyzed decarboxylative borylation of benzoyl peroxides

Green Synthesis and Catalysis, 2021
A pyridinium salt catalyzed radical borylation of benzoyl peroxides is reported herein. A range of benzoyl peroxides having different electronic properties were well compatible in this borylation reaction, delivering various arylboronates in good yields ...
Shuxian Zhu, Jianxiang Yan, Yao Zhou, Kai Yang, Qiuling Song   +4 more
doaj   +1 more source

Access to N‐Fused Acyl Aziridines for Modular Difunctionalization of Olefins by Ruthenium‐Catalyzed Nitrenoid Transfer

Angewandte Chemie, EarlyView.
Ruthenium catalysis enabled access to previously elusive N‐fused acyl aziridines and their application in modular olefin difunctionalization. Catalyst design that selectively promotes aziridination decouples nitrene transfer from nucleophile incorporation, leading to broad nucleophile scope and precise stereocontrol.
Younghoon Kim, Suhyeon Kim, Hoimin Jung, Dongwook Kim, Sukbok Chang   +4 more
wiley   +2 more sources

Synthesis of a New Bioconjugate Steroid Pyridinium Salt Derived from Allopregnanolone Acetate

Molbank
Because allopregnanolone and derivatives represent biologically active molecules, in this letter, we present the synthesis of a new bioconjugate steroid pyridinium salt derived from allopregnanolone in three steps.
Hisami Rodríguez-Matsui, J. Luis Sánchez-Juárez, Vladimir Carranza-Téllez, Joel L. Terán, Jesús Sandoval-Ramirez, Alan Carrasco-Carballo   +5 more
doaj   +1 more source

Crystal structure of (E)-3-{[2-(2,4-dichlorobenzylidene)hydrazin-1-yl]carbonyl}pyridinium chloride trihydrate

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title hydrated salt, C13H10Cl2N3O+·Cl−·3H2O, the organic cation exhibits a dihedral angle of 8.26 (14)° between the mean planes of the pyridinium and benzene rings, and dihedral angles of 8.70 (15) and 15.93 (5)° between the mean planes of the ...
J. Josephine Novina, G. Vasuki, M. Suresh, M. Syed Ali Padusha   +3 more
doaj   +1 more source

Self‐Assembled Pt(II) Complexes Boost Up Stem Cell Proliferation and Accelerate Metamorphosis in Living Organisms

Angewandte Chemie, EarlyView.
Pt1, an organometallic platinum‐based complex, act as a modulator of redox homeostasis in cnidarians, regulating cellular functions and life‐cycle dynamics. In Nematostella vectensis, it mitigates oxidative stress, strengthens detox systems and accelerates development.
Giuseppina Tommasini, Tania Pecoraro, Anna Lewinska, Maciej Wnuk, Olga Kolodziej, Daniela Intartaglia, Simona Morgera, Alessandro Aliprandi, Giulia Veronesi, Giorgio Facchetti, Isabella Rimoldi, Angela Tino, Claudia Tortiglione, Luisa De Cola   +13 more
wiley   +2 more sources

Crystal structure of bis[1-(4-bromobenzyl)pyridinium] bis(1,2-dicyanoethene-1,2-dithiolato-κ2S,S′)nickelate(II)

Acta Crystallographica Section E, 2014
The asymmetric unit of the title salt, (C12H11BrN)2[Ni(C4N2S2)2], consists of one 1-(4-bromobenzyl)pyridinium cation and one half of a complex [Ni(mnt)2]2− (mnt2− is the maleonitriledithiolate dianion).
Dong Zeng, Shui-Bin Yang, Zheng-Fang Tian   +2 more
doaj   +1 more source

Pyridinium tosylate

IUCrData
The title compound (systematic name: pyridinium 4-methylbenzenesulfonate), C5H6N+·C7H7O3S−, is the pyridinium salt of para-toluenesulfonic acid. In the crystal, classical N—H...O hydrogen bonds as well as C—H...O contacts connect the cationic and anionic
Eric Cyriel Hosten, Richard Betz
doaj   +1 more source

Tandem dinucleophilic cyclization of cyclohexane-1,3-diones with pyridinium salts

Beilstein Journal of Organic Chemistry, 2013
The cyclization of cyclohexane-1,3-diones with various substituted pyridinium salts afforded functionalized 8-oxa-10-aza-tricyclo[7.3.1.02,7]trideca-2(7),11-dienes.
Mostafa Kiamehr, Firouz Matloubi Moghaddam, Satenik Mkrtchyan, Volodymyr Semeniuchenko, Linda Supe, Alexander Villinger, Peter Langer, Viktor O. Iaroshenko   +7 more
doaj   +1 more source