A group of α, β- unsaturated carbonyl compounds were prepared as intermediates by the reaction of para aminoacetophenone with various aromatic aldehydes in the presence of NaOH in ethanol at room temperature. The products were cyclised with hydroxylamine hydrochloride under reflux condition to form isoxazoles derivatives, which were allowed to react with 2,3,5,6-tetrabromo-1,4-Benzoquinone in order to furnish the target compounds i.e.(p-quinones derivatives). The structures of the prepared compounds were confirmed by elemental analysis IR,1HNMR and Ms.
All Published work is licensed under a Creative Commons Attribution 4.0 International License
Copyright © 2019 All rights reserved. iMedPub LTD Last revised : April 21, 2019