Results 111 to 120 of about 358,569 (255)
FLP Mediated Conversion of Difluorobenzylalkynes to Fluoroallenyl Oniums via an SN1’ Pathway
Chemistry – A European Journal, EarlyView.Frustrated Lewis pair (FLP) selective C‒F activation of difluorobenzylalkynes allows the formation of fluoroallenic oniums via an SN1’ substitution pathway. The fluoroallenic onium salts are synthetic precursors that allow subsequent functionalization at allenic and onium positions.
Max Coles +6 more
wiley +1 more source
Synthesis and biological activity study of tanshinone I-pyridinium salt derivatives
Natural Products and BioprospectingNatural product tanshinone I exhibits weak potency and poor drug-like properties, which have restricted its clinical development as an anticancer agent.
Huimin Zhao +9 more
doaj +1 more source
The Synthesis of New Pyrylium and Pyridinium Salts
, 2013 The synthesis, properties, and applications of symmetrical and unsymmetrical pyrylium and pyridinium salts is investigated. Our group has found particular interest in chiral pyrylium salts due to the fact that they are almost unknown in the literature ...
Korbitz, Holland
core
Synthesis of highly stabilized ylides from N-[2-(1,3-benzazolylmethyl)]pyridinium salts
, 1990 A series of new stable ylides has been synthesized by the reaction of N-[2-(1,3-benzazolylmethyl)]-pyridinium salts with electrophiles such as carbon disulphide, isothiocyanate derivatives, phenylisocyanate and benzoyl chloride in a two-phase system ...
Álvarez-Builla Gómez, Julio +4 more
core +1 more source
Chemistry – A European Journal, EarlyView.Quinolin‐4‐ones were converted to chloroquinolinium salts, allowing formation of axially chiral aminoquinolinium salts via an enantioretentive SNAr reaction with a variety of amine nucleophiles. The salts have a high rotational barrier, with a racemization half‐life of ∼1000s of years.
Darren Holmes +5 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2010 A new anthracene labeled pyridinium amide–urea conjugate 1 has been designed and synthesized. The receptor shows a different fluorometric response with L-N-acetylvaline and L-N-acetylalanine salts in CH3CN in contrast to the other salts of L-N-acetyl α ...
Kumaresh Ghosh +2 more
doaj +1 more source
Synthesis and characterization data of monocationic and dicationic ionic liquids or molten salts
Data in Brief, 2018 Data presented in this article are related with the research paper entitled “Ecotoxicity assessment of dicationic versus monocationic ionic liquids as a more environmentally friendly alternative” [1]. The present article describes the synthesis steps and
M.G. Montalbán, G. Víllora, P. Licence
doaj +1 more source
Synthesis of pyridinium salts - new catalysts phase transfer
, 2014 Neste trabalho foi preparada uma série de sais de piridínio, com subsequente investigação da sua atividade catalítica e indução assimétrica em reações de adição de Michael e alquilações de metilenas ativas.
Lucchese, Angélica Maria
core +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.As a metalloid with broad prospects in advanced applications, Te has not been fully clarified in terms of its intricate electrochemical behaviors across varied systems. This review systematically integrates fundamental electrochemical mechanisms, reaction kinetics identifications, and device application insights, establishing a comprehensive framework ...
Meng Zhang +6 more
wiley +1 more source