Iron-catalyzed aerobic oxidative aromatization of 1,3,5-trisubstituted pyrazolines
作者:Guddekoppa S. Ananthnag、Adithya Adhikari、Maravanji S. Balakrishna
DOI:10.1016/j.catcom.2013.09.002
日期:2014.1
A simple and high yielding method for the synthesis of tri-substituted pyrazoles via iron(III) catalyzed aerobic oxidative aromatization of pyrazolines has been reported. The process demonstrates a variety of functional group tolerance.
In this study, the synthesis of twelve 3‐(2‐thienyl)pyrazolinederivatives are described. The structures of all compounds were confirmed by UV, IR, 1H‐NMR, mass spectral data, and microanalyses. In the pharmacological studies, antidepressant and anticonvulsantactivities of these compounds have been screened. The antidepressantactivities of the compounds were investigated by Porsolt's behavioral despair
Electrochemically enabled oxidative aromatization of pyrazolines
作者:Silja Hofmann、Martin Linden、Julian Neuner、Felix N. Weber、Siegfried R. Waldvogel
DOI:10.1039/d3ob00671a
日期:——
Pyrazoles are a very important structural motif widely found in pharmaceuticals and agrochemicals. An electrochemically enabled approach for the sustainable synthesis of pyrazoles via oxidativearomatization of pyrazolines is presented. Inexpensive sodium chloride is employed in a dual role as a redox mediator and supporting electrolyte in a biphasic system (aqueous/organic). The method is applicable