1047680-82-9Relevant articles and documents
A new solvent-free synthesis of α,β-unsaturated ketones from acetals with aryl ketones under microwave irradiation
Huang, Danfeng,Wang, Jin-Xian,Hu, Yulai,Zhang, Yumei,Tang, Jing
, p. 971 - 979 (2002)
A new, rapid and efficient method for the synthesis of α,βunsaturated ketones under microwave irradiation conditions is described. The process involves the reaction of acetals with aryl ketones in the absence of solvent using Lewis acids as catalysts under microwave irradiation to afford the α,βunsaturated ketones in good to excellent isolated yields. The reaction mechanism is briefly discussed.
An eco-friendly synthesis of 2-pyrazoline derivatives catalysed by CeCl 3· 7 H 2O
Bhat, Prabhat,Shridhar, Gomathi,Ladage, Savita,Ravishankar, Lakshmy
, p. 1441 - 1448 (2017/09/25)
Abstract: 1,3,5-triaryl-2-pyrazoline derivatives were synthesised by a condensation reaction between chalcones and phenyl hydrazine using cerium chloride heptahydrate as a catalyst. All these reactions were carried out in ethyl lactate (70%) as a green solvent. Easy and efficient work up, recyclability of solvent and catalyst are the key merits of this protocol. Graphical Abstract:: SYNOPSIS A facile protocol for the synthesis of 1,3,5-triaryl-2-pyrazolines is described. The solvent ethyl lactate, obtained from renewable sources, is biodegradable. The catalyst CeCl 3· 7 H 2O is a water-tolerant Lewis acid with low toxicity. Easy and clean work up, recyclable solvent and catalyst are merits of the protocol. The reaction works well for all systems giving good yields of the desired products.[Figure not available: see fulltext.].
Iron-catalyzed aerobic oxidative aromatization of 1,3,5-trisubstituted pyrazolines
Ananthnag, Guddekoppa S.,Adhikari, Adithya,Balakrishna, Maravanji S.
, p. 240 - 243 (2013/12/04)
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.