Results 31 to 40 of about 47,136 (264)

2-(Benzenesulfonamido)pyridinium nitrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2009
In the title compound, C11H11N2O2S+·NO3−, the dihedral angle between the benzene and pyridinium rings is 87.59 (8)°. An intramolecular C—H...O interaction occurs in the cation. In the crystal structure, ion pairs occur, being linked by two strong N—H...O interactions, formingR22(8) loops. The packing is further stabilized by weak C—H...O interactions.
Jiang-Sheng Li, Xun Li
openaire   +3 more sources

Pyridinium-2-carboxyl­ate–benzene-1,2-diol (1/1)

, 2009
The title compound, C6H5NO2·C6H6O2, crystallizes with one pyridinium-2-carboxyl­ate zwitterion and one mol­ecule of benzene-1,2-diol in the asymmetric unit.
Bolte, Michael, Michael Bolte, Cuong, Ton Quoc, Cuong Quoc Ton   +3 more
core   +1 more source

2-(Benzenesulfonamido)pyridinium perchlorate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2009
In the title compound, C11H11N2O2S+·ClO4−, the dihedral angle between the benzene and pyridinium rings is 87.33 (10)°. An intramolecular N—H...O interaction, with an S=O-bonded O atom as receptor, occurs in the cation. In the crystal structure, ion pairs occur, being linked by strong N—H...O hydrogen bonds. The perchlorate anion plays a further role in
Xun Li, Dan Xie, Zhi-Hong Xiao, Chang-Zhu Li   +3 more
openaire   +3 more sources

4-[3-(Isonicotino-yloxy)propoxycarbon-yl]pyridinium diiodidoargentate(I)

, 2011
The structure of the title compound, (C15H15N2O4)[AgI2], consists of an organic 4-[3-(isonicotino­yloxy)propoxycarbon­yl]pyridinium cation which has a gauche–gauche (O/C/C/C—O/C/C/C or GG’) conformation and lies on a twofold rotation axis, which passes ...
Bolte, Michael, Iván Brito, López-Rodríguez, Matías, Brito, Iván, Alejandro Cárdenas, Michael Bolte, Vallejos, Javier, Cárdenas, Alejandro, Matías López-Rodríguez, Alejandro Cárdenas, Iván Brito, Javier Vallejos, Matías López-Rodríguez   +12 more
core   +1 more source

Pyridinium-Based Strategy for a Bioorthogonal Conjugation-Assisted Purification Method for Profiling Cell Surface Proteome

Cell surface proteins (CSPs) are valuable targets for therapeutic agents, but achieving highly selective CSP enrichment in cellular physiology remains a technical challenge.
Yongli Li (527489), Tuanjie Zhang (17349385), Fadeng Yang (6481601), Zhuoheng Pan (17349382), Dongyan Yang (284362), Chuan Dai (2087050), Feng Yin (681489), Lizhi Zhu (1608625), Xiaochun Guo (12084664), Rui Wang (52434), Yuhao An (11197503), Zigang Li (606370), Chuan Wan (1400545), Chenshan Lian (8281266)   +13 more
core   +3 more sources

Mechanochemistry Meets Catalysis: Metal Complexes for Greener Organic Transformations

Angewandte Chemie, EarlyView.
Mechanochemistry is redefining metal catalysis by controlling catalyst formulation, speciation, and deployment. This Review shows how milling, LAG, RAM, and TSE enable rapid metal‐complex assembly, distinctive catalytic manifolds, and scalable synthesis beyond solution chemistry.
Sourav Behera, Francesco Basoccu, Andrea Porcheddu   +2 more
wiley   +2 more sources

Investigation of the Pyridinium Ylide—Alkyne Cycloaddition as a Fluorogenic Coupling Reaction

Molecules, 2016
The cycloaddition of pyridinium ylides with alkynes was investigated under mild conditions. A series of 13 pyridinium salts was prepared by alkylation of 4-substituted pyridines.
Simon Bonte, Ioana Otilia Ghinea, Rodica Dinica, Isabelle Baussanne, Martine Demeunynck   +4 more
doaj   +1 more source

Regioselective Alkylation of Pyridinium Riboses [PDF]

European Journal of Organic Chemistry, 2020
The nucleophilic addition of alkyl, benzyl, and allyl organozinc reagents to protected pyridinium riboses proceeds under mild conditions and with yields of > 90 % in several cases and complete regioselectivity for the 4‐position.
Farbod Salahi, Olaf Wiest
openaire   +2 more sources

Mitochondria‐Targeting Moieties Based on N‐Tethered Pyridinium Cations

Angewandte Chemie, EarlyView.
Pyridinium cations were benchmarked as mitochondria‐targeting moieties in a panel of N‐tethered fluorescent‐, bioactive‐, and inert‐cargo conjugates. 3,5‐Diphenylpyridinium (DPPy+) is a competent triphenylphosphonium (TPP+) surrogate, combining high mitochondria‐targeting efficiency with lower intrinsic effects on mitochondrial function.
Ivan Džajić, Natalija Trunkelj, Jernej Repas, Maša Kandušer, Lara Smrdel, Stane Pajk, Lovro Žiberna, Irena Mlinarič‐Raščan, Bostjan Markelc, Tim Bozic, Masa Omerzel, Tanja Jesenko, Maja Cemazar, Katja Kološa, Bojana Žegura, Miha Virant, Matic Lozinšek, Hai M. Nguyen, Joshua A. Nasburg, Heike Wulff, Maxime Gueguinou, Valerije Vrček, Veronica Carpanese, Ildiko Szabo, Luis A. Pardo, Tihomir Tomašič, Lucija Peterlin Mašič, Andrej Emanuel Cotman   +27 more
wiley   +2 more sources

Synthesis, biological evaluation, and computational studies of N-benzyl pyridinium–curcumin derivatives as potent AChE inhibitors with antioxidant activity

Journal of Enzyme Inhibition and Medicinal Chemistry, 2023
A library of N-benzylpyridinium-based compounds, 7a-j and 8a-j, was designed and synthesised as potential acetylcholinesterase) AChE (inhibitors. An in vitro assay for the synthesised compounds showed that most compounds had significant AChE inhibitory ...
Nafisah M. Al-Rifai, Nemeh M. Al-Khalileh, Jalal A. Zahra, Musa I. El-Barghouthi, Fouad H. Darras   +4 more
doaj   +1 more source