Erturk, Aliye Gediz; Omerustaoglu, Hilal
(MDPI, ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND, 2020)
In this paper, a series of new substituted-5-pyrazolones were first synthesized, then formulated by the Vilsmeier-Haack reaction to obtain substituted-4-carbaldehyde-5-pyrazolones. In the final step, when urea was reacted ...