Addition of pyrazoles to α,β-acetylenic aryl(hetaryl) ketones in solid Al2O3: synthesis of 3-pyrazolylenones and 3,3-dipyrazolylpropanones
作者:M. D. Gotsko、I. V. Saliy、A. V. Vashchenko、I. A. Ushakov、L. N. Sobenina、B. A. Trofimov
DOI:10.1007/s11172-023-3832-5
日期:2023.3
Mild one-pot synthesis of 3-pyrazolylenones and 3,3-dipyrazolylpropanones in the yields of 18–33% and 34–57%, respectively, by addition of pyrazoles to α,β-acetylenic aryl(hetaryl) ketones in solid Al2O3 (room temperature, 24 h) was reported. The synthesized functionalizedpyrazoles are the promising drug precursors and potential chelating «scorpion-like» ligands for coordination chemistry.