Addition 1,3-dipolaire du 2-diazopropane (DAP) sur des énones aromatiques parasubstituées
Written by sctunisie no commentsThe reaction of 1,3-dipolar cycloaddition of 2-diazopropane 1 with enones 2a-d at 0°C, has led to Δ2-pyrazolines 4a-d. Pyrazolenines 5a-d resulted, in a good yield, from oxidation of Δ2-pyrazolines 4a-d by MnO2.
H. Hammami, Y. Ben Dhia, A. Khemiss
2-diazopropane, 1,3-dipolar cycloaddition, Δ2-pyrazolines, pyrazolenines
Pages 1539-1543
