Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5220800 | Tetrahedron | 2011 | 8 Pages |
Abstract
N, N, Nâ², Nâ²-Tetrabromobenzene-1,3-disulfonamide and poly(N-bromo-N-ethylbenzene-1,3-disulfonamide) were used as efficient catalysts for the one-pot synthesis of aliphatic and aromatic 2H-indazolo[2,1-b]phthalazine-triones in excellent yields from aldehydes, phthalhydrazide, and dimedone at 80-100 °C under solvent-free conditions.
Graphical abstractDownload full-size image
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Ramin Ghorbani-Vaghei, Rahman Karimi-Nami, Zahra Toghraei-Semiromi, Mostafa Amiri, Mehdi Ghavidel,