The first one‐pot synthesis of pyridazinones and phthalazinones from arenes, cyclic anhydrides, and ArNHNH2 in the presence of efficient recyclable heterogeneous catalyst, HY‐zeolite, in high yield and short reaction time is reported. J. Heterocyclic Chem., (2011).
The first three-component and regioselective synthesis of pyridazinones and phthalazinones from arenes, anhydrides and ArNHNH2 in the presence of efficient recyclable heterogeneous catalyst, montmorillonite-KSF, in high yield and short reaction time is reported.
Heterocyclic Thiones and Their Analogs in 1,3-Dipolar Cycloaddition Reactions: IV. Reactions of 4-Aryl-2-phenyl-1,2-dihydrophthalazine-1-thiones with Nitrile Imides
作者:E. V. Budarina、V. F. Plotnikov、N. N. Labeish、V. K. Bel’skii、V. A. Galishev
DOI:10.1007/s11178-005-0187-x
日期:2005.3
4-Aryl-2-phenyl-1,2-dihydrophthalazine-1-thiones react with nitrile imides according to the [3 + 2]-cycloaddition pattern to give phthalazinespirothiadiazoles. The reaction occurs regioselectively at the exocyclic C=S bond.